https://wiki.seas.harvard.edu/geos-chem/api.php?action=feedcontributions&user=Rvmartin&feedformat=atomGeos-chem - User contributions [en]2024-03-28T15:05:41ZUser contributionsMediaWiki 1.24.2https://wiki.seas.harvard.edu/geos-chem/index.php?title=GEOS-Chem_model_development_priorities&diff=51716GEOS-Chem model development priorities2022-09-21T17:14:48Z<p>Rvmartin: </p>
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<div>'''''[[Main_Page|GEOS-Chem Main Page]] | [[GCHP_Main_Page|GCHP Main Page]]'''''<br />
<br />
On this page we list the current priorities for GEOS-Chem development. This list is continuously updated based on code readiness and input from the [https://geos-chem.seas.harvard.edu/geos-working-groups Working Groups] and the [https://geos-chem.seas.harvard.edu/geos-steering-cmte Steering Committee]. For history of past releases see the [[GEOS-Chem_versions|GEOS-Chem Versions wiki page]].<br />
<br />
== Release schedule ==<br />
<br />
Please see the [http://wiki.seas.harvard.edu/geos-chem/images/e/e1/GEOS-Chem_Release_Proposal.pdf GEOS-Chem Release Proposal] outlining the procedure and schedule for releasing GEOS-Chem versions. <br />
<br />
== Merged and awaiting release ==<br />
<br />
See the links below for items merged and awaiting release.<br />
<br />
{| border=1 cellspacing=0 cellpadding=5 <br />
|-bgcolor="#CCCCCC"<br />
!width="200px"|Patch version in development<br />
!width="200px"|Major version in development<br />
<br />
|-valign="top"<br />
|align="center"| -<br />
|align="center"|'''[[GEOS-Chem 14.0.0]]'''<br />
<br />
|}<br />
<br />
== Feature integration in progress ==<br />
<br />
Features listed in this table are actively being integrated into GEOS-Chem by the [[GEOS-Chem Support Team]]. In addition, we continuously implement structural updates in the model to maintain and develop coupling with other models including GEOS, CESM, and the model adjoint. <br />
<br />
{| border=1 cellspacing=0 cellpadding=5 <br />
|-bgcolor="#CCCCCC"<br />
!width="200px"|Feature<br />
!width="200px"|Contributor(s)<br />
!width="100px"|Model scope<br />
!width="100px"|Ease of implementation<br />
!width="300px"|Notes and References<br />
<br />
<br />
|-valign="top"<br />
|TOMAS in GCHP<br />
|Betty Croft (WashU)<br />
|Aerosols<br />
|Simple<br />
|<br />
*[https://github.com/geoschem/GCHP/pull/221 geoschem/GCHP PR #221]<br />
*[https://github.com/geoschem/geos-chem/pull/1261 geoschem/geos-chem PR #1261]<br />
*[https://github.com/geoschem/HEMCO/pull/145 geoschem/HEMCO PR #145]<br />
<br />
|-valign="top"<br />
|[https://gmd.copernicus.org/articles/13/2475/2020/gmd-13-2475-2020.pdf Adaptive chemical solver] (as option) / KPP 3.0.0<br />
|Mike Long (Harvard) <br> Haipeng Lin (Harvard) <br> Bob Yantosca (GCST) <br> Lu Shen (PKU)<br />
|Chemistry<br />
|Complicated<br />
|<br />
*Lin, H., M.S. Long, R. Sander, R.M. Yantosca, L.A. Estrada, L. Shen, and D.J. Jacob, An adaptive auto-reduction solver for speeding up integration of chemical kinetics in atmospheric chemistry models: implementation and evaluation in the Kinetic Pre-Processor (KPP) version 3.0.0, submitted to JAMES, https://doi.org/10.31223/X5505V, 2022.<br />
|-valign="top"<br />
|[https://acp.copernicus.org/articles/19/7055/2019/ Joint CO2-CO-CH4-OCS simulation via KPP]<br />
|Beata Bukosa (NIWA)<br>Kevin Bowman (JPL)<br>Mike Long (Harvard)<br />
|Specialty simulation<br />
|Medium<br />
|<br />
*[https://github.com/geoschem/geos-chem/issues/654 geoschem/geos-chem #654]<br />
<br />
|-valign="top"<br />
|RO2 diagnostic<br />
|Melissa Sulprizio (Harvard)<br />
|Diagnostics<br />
|Simple<br />
|<br />
<br />
|-valign="top"<br />
|[https://github.com/geoschem/geos-chem/issues/770 Output satellite diagnostics as NetCDF]<br />
|Eloise Marais (UCL) <br />
|Diagnostics<br />
|Simple<br />
|<br />
*See [https://github.com/geoschem/geos-chem/pull/1134 geoschem/geos-chem #1134]<br />
<br />
|-valign="top"<br />
|[https://github.com/geoschem/geos-chem/issues/331 Provide climatologies for open fire emissions]<br />
|Melissa Sulprizio (Harvard)<br />
|Emissions<br />
|Simple<br />
|<br />
<br />
|-valign="top"<br />
|[https://github.com/geoschem/geos-chem/issues/655 Climatologies for lightning NOx]<br />
|Lee Murray (Rochester)<br>Melissa Sulprizio (Harvard)<br />
|Emissions<br />
|Simple<br />
|<br />
<br />
|-valign="top"<br />
|[https://github.com/geoschem/geos-chem/discussions/1022 Add new species concentration diagnostic in units of molec/cm3]<br />
|Haipeng Lin (Harvard)<br />
|Diagnostics<br />
|Simple<br />
|<br />
*See [https://github.com/geoschem/geos-chem/pull/1264 geoschem/geos-chem PR #1264]<br />
<br />
|-valign="top"<br />
|Identify and remove memory leaks and similar issues<br />
|Bob Yantosca (Harvard)<br />
|Structural<br />
|Medium<br />
|<br />
*See [https://github.com/geoschem/geos-chem/pull/1353 github.com/geos-chem PR #1353]<br />
<br />
|-valign="top"<br />
|Update transport tracer simulation for consistency with the tracer gridded component in GEOS<br />
|Melissa Sulprizio (Harvard)<br />
|TransportTracer simulation<br />
|Simple<br />
|<br />
<br />
|-valign="top"<br />
|Bug fix for GFAS in GCHP<br />
|Lizzie Lundgren (Harvard)<br />
|GCHP<br />
|Simple<br />
|<br />
<br />
|-valign="top"<br />
|Use pointers to internal state for species arrays in GCHP/GEOS<br />
|Lizzie Lundgren (Harvard)<br />
|GCHP/GEOS<br />
|Medium<br />
|<br />
<br />
|-valign="top"<br />
|[https://github.com/geoschem/geos-chem/issues/1274 Revision to a rate constant for the C2H4 scheme]<br />
|Kelvin Bates (Harvard)<br />
|Chemistry<br />
|Easy<br />
|<br />
<br />
|-valign="top"<br />
|[https://github.com/geoschem/geos-chem/issues/1298 Fix product in HOBr/Cl + S(IV) reactions]<br />
|Xuan Wang (CUHK)<br />
|Chemistry<br />
|Easy<br />
|<br />
<br />
|-valign="top"<br />
|[https://github.com/geoschem/geos-chem/issues/1235 Add MO2 + NO3 reaction]<br />
|Kelvin Bates (Harvard)<br />
|Chemistry<br />
|Easy<br />
|<br />
<br />
|}<br />
<br />
== Delivered and in the queue ==<br />
<br />
Features listed in this table have been delivered to the GEOS-Chem Support Team and are prioritized to be integrated into GEOS-Chem in the near future.<br />
<br />
{| border=1 cellspacing=0 cellpadding=5 <br />
|-bgcolor="#CCCCCC"<br />
!width="200px"|Feature<br />
!width="200px"|Contributor(s)<br />
!width="100px"|Model scope<br />
!width="100px"|Ease of implementation<br />
!width="300px"|Notes and References<br />
<br />
|-valign="top"<br />
|[https://doi.org/10.34894/SZ2KOI AMAP 2015 emissions from GMA2018]<br />
|Helene Angot(MIT)<br>Ari Feinberg (MIT)<br>Noelle Selin (MIT)<br />
|Hg simulation<br />
|Simple<br />
|<br />
* Delivered to GCST (Jul 2022)<br />
<br />
|-valign="top"<br />
|[https://pubs.rsc.org/en/content/articlehtml/2022/em/d2em00032f Improvements in modelled Hg0 dry deposition to land]<br />
|Ari Feinberg (MIT)<br>Noelle Selin (MIT)<br>Thandolwethu Dlamini (MIT)<br>Martin Jiskra (UBasel)<br>Viral Shah (Harvard)<br />
|Hg simulation<br />
|Simple<br />
|<br />
* See [https://github.com/geoschem/geos-chem/pull/1367 geoschem/geos-chem PR #1367]<br />
* The study is already published and could be incorporated into the standard model as a default. Some tweaking to the reduction rate may be required as the model halogen oxidation has also been updated in v13.4.<br />
<br />
|-valign="top"<br />
|[https://github.com/geoschem/geos-chem/issues/1288 New soil NOx parameterization]<br />
|Yi Wang (U. Iowa)<br>Jun Wang (U. Iowa)<br />
|Emissions<br />
|Simple<br />
|<br />
*Delivered to GCST (Jun 2022)<br />
<br />
|-valign="top"<br />
|[https://github.com/geoschem/geos-chem/issues/1301 HTAPv3 at 0.1 deg]<br />
|Dandan Zhang (WashU)<br />
|Emissions<br />
|Simple<br />
|<br />
*Delivered to GCST (Jul 2022)<br />
<br />
|}<br />
<br />
== Delivered but not yet prioritized ==<br />
<br />
Features listed in this table have been delivered to the GEOS-Chem Support Team but are not yet prioritized for integration into GEOS-Chem.<br />
<br />
{| border=1 cellspacing=0 cellpadding=5 <br />
|-bgcolor="#CCCCCC"<br />
!width="200px"|Feature<br />
!width="200px"|Contributor(s)<br />
!width="100px"|Model scope<br />
!width="100px"|Ease of implementation<br />
!width="300px"|Notes and References<br />
<br />
|-valign="top"<br />
|Tagged O3 simulation in GCHP<br />
|Xingpei Yu (PKU)<br />
|TagO3 simulation<br />
|Simple<br />
|<br />
*[https://github.com/geoschem/geos-chem/pull/1167 geoschem/geos-chem PR #1167]<br />
* Needs to be updated to a more recent version of GCHP<br />
<br />
|-valign="top"<br />
|[https://doi.org/10.7910/DVN/23BRII Global continental chlorine (pCl and HCl) emissions]<br />
|Bingqing Zhang (Georgia Tech)<br>Pengfei Liu (Georgia Tech)<br />
|Emissions<br />
|Simple<br />
|<br />
*Delivered to GCST (Jul 2022)<br />
<br />
|-valign="top"<br />
|[https://github.com/geoschem/geos-chem/pull/629 Ecophysiology module in GEOS-Chem for biosphere-atmosphere exchange]<br />
|Joey Lam(CUHK)<br>Amos Tai (CUHK)<br />
|Science<br />
|Simple<br />
|<br />
*Delivered to GCST (Feb 2021)<br />
* [https://github.com/geoschem/geos-chem/pull/629 geoschem/geos-chem #629]<br />
<br />
|-valign="top"<br />
|LPJ land cover (global), fire (W US), dust emissions (SW N America), 1700-2100<br />
|Yang Li (Baylor University)<br>Loretta Mickley (Harvard)<br />
|Emissions<br />
|Simple<br />
|<br />
*Data files delivered to GCST (July 2021)<br />
*Data are quite large - need to think about storage, compression<br />
<br />
|-valign="top"<br />
|[https://agupubs.onlinelibrary.wiley.com/doi/epdf/10.1029/2006GL026015 Stratospheric HCN chemistry]<br />
|Armin Kleinbohl (JPL)<br>Debra Weisenstein (Harvard, retired)<br />
|Chemistry<br />
|Medium<br />
|<br />
*Delivered to GCST (Jun 2020)<br />
<br />
|}<br />
<br />
== Ready but not delivered ==<br />
<br />
Features listed in this table are ready but have not been delivered to the GEOS-Chem Support Team.<br />
<br />
{| border=1 cellspacing=0 cellpadding=5 <br />
|-bgcolor="#CCCCCC"<br />
!width="200px"|Feature<br />
!width="200px"|Contributor(s)<br />
!width="100px"|Model scope<br />
!width="300px"|Notes and References<br />
<br />
|-valign="top"<br />
|Updating VOC fire emissions and adding lumped furan<br />
|Colette Heald (MIT)<br>Jessica Haskins (MIT)<br />
|Chemistry<br />
|<br />
* Carter, T. S., Heald, C. L., Kroll, J. H., Apel, E. C., Blake, D., Coggon, M., Edtbauer, A., Gkatzelis, G., Hornbrook, R. S., Peischl, J., Pfannerstill, E. Y., Piel, F., Reijrink, N. G., Ringsdorf, A., Warneke, C., Williams, J., Wisthaler, A., and Xu, L.: An Improved Representation of Fire Non-Methane Organic Gases (NMOGs) in Models: Emissions to Reactivity, Atmos. Chem. Phys. Discuss. [preprint], https://doi.org/10.5194/acp-2022-438, in review, 2022.<br />
<br />
|-valign="top"<br />
|Nitrate photolysis<br />
|Viral Shah (NASA GMAO)<br />
|Chemistry<br />
|<br />
* Shah, V., D.J. Jacob, R. Dang, L.N. Lamsal, S.A. Strode, S.D. Steenrod, K.F. Boersma, S.D. Eastham, T.M. Fritz, C. Thompson, J. Peischl, I. Bourgeois, I.B. Pollack, B.A. Nault, R.C. Cohen, P. Campuzano-Jost, J.L. Jimenez, S.T. Andersen, L.J. Carpenter, T. Sherwen, and M.J. Evans, Nitrogen oxides in the free troposphere: Implications for tropospheric oxidants and the interpretation of satellite NO2 measurements, EGUsphere [preprint], https://doi.org/10.5194/egusphere-2022-656, 2022.<br />
<br />
|-valign="top"<br />
|Online H2 chemistry<br />
|Maria Paula Pérez-Peña (UNSW)<br>Jenny Fisher (UOW)<br>Dylan Millet (UMN)<br />
|Chemistry<br />
|<br />
<br />
|-valign="top"<br />
|Alk4 & R4N2 chemistry<br />
|Jared Brewer (Harvard)<br />
|Chemistry<br />
|<br />
* Brewer, J.F., D.J. Jacob, S.H. Jathar, Y. He, A. Akherati, S. Zhai, D.S. Jo, A. Hodzic, B.A. Nault, P. Campuzano-Jost, J.L. Jimenez, R.J. Park, Y.J. Oak, and H. Liao, A scheme for representing aromatic secondary organic aerosols in chemical transport models: application to source attribution of organic aerosols over South Korea during the KORUS-AQ campaign, submitted to J. Geophys. Res., 2022.<br />
<br />
|-valign="top"<br />
|Organic acids (RCOOH)<br />
|Katie Travis (NASA)<br />
|Chemistry<br />
|<br />
<br />
|-valign="top"<br />
|Update reactions with new JPL & IUPAC recommendations<br />
|Kelvin Bates (Harvard)<br />
|Chemistry<br />
|<br />
* Currently running simulations to check magnitude of changes<br />
<br />
|-valign="top"<br />
|Improve carbon & nitrogen conservation in reactions<br />
|Kelvin Bates (Harvard)<br />
|Chemistry<br />
|<br />
<br />
|-valign="top"<br />
|Blowing snow sea salt in TOMAS<br />
|Betty Croft (Dalhousie)<br />
|Aerosols<br />
|<br />
<br />
|-valign="top"<br />
|Geologic emission of ethane and propane<br />
|Matthew Rowlinson and Mat Evans(York)<br />
|Emissions<br />
|<br />
* Global source from https://doi.org/10.1038/s41561-018-0073-0 with spatial distribution from https://doi.org/10.5194/essd-11-1-2019<br />
<br />
|-valign="top"<br />
|New version of CEDS at 0.1 deg<br />
|Emma Knowland (NASA)<br />
|Emissions<br />
|<br />
<br />
|-valign="top"<br />
|[https://github.com/geoschem/geos-chem/issues/550 MEIC (China regional) for 2000-2017 at 0.5x0.625 deg]<br />
|Shixian Zhai (Harvard)<br />
|Emissions<br />
|<br />
* Need permission from Qiang Zhang (Tsinghua U.) to distribute data<br />
<br />
|-valign="top"<br />
|KORUS-AQ emissions for East Asia<br />
|Katie Travis (NASA)<br />
|Emissions<br />
|<br />
* Need permission to distribute data<br />
<br />
|-valign-"top"<br />
|[https://pubs.rsc.org/en/content/articlelanding/2022/EM/D2EM00019A Australian anthropogenic Hg emissions]<br />
|Stephen MacFarlane (UOW)<br>Jenny Fisher (UOW)<br> Hannah Horowitz (U. Illinois)<br>Viral Shah (Harvard)<br />
|Hg simulation<br />
|<br />
<br />
|-valign-"top"<br />
|WRF-GC Hg simulation<br />
|Xiaotian Xu (Nanjing U.)<br>Yanxu Zhang (Nanjing U.)<br />
|Hg simulation<br>WRF-GC<br />
|<br />
<br />
|-valign="top"<br />
|Updated HgII gas-partical partitioning<br />
|Kaiyun Liu (Tsinghua U.)<br>Qingru Wu (Tsinghua U.)<br>Shuxiao Wang (Tsinghua U.)<br />
|Hg simulation<br />
|<br />
* Should be option, not default<br />
<br />
|-valign="top"<br />
|Dry deposition to F90 (readability)<br />
|Chris Holmes (FSU)<br />
|Dry deposition<br />
|<br />
|}<br />
<br />
== Almost there (< 6 months) ==<br />
<br />
Features listed in this table are in development and will likely be delivered to the GEOS-Chem Support Team within the next 6 months.<br />
<br />
{|border=1 cellspacing=0 cellpadding=5<br />
|- bgcolor="#cccccc"<br />
!width="200px"|Feature<br />
!width="200px"|Contributor(s)<br />
!width="100px"|Model scope<br />
!width="420px"|Notes and References<br />
<br />
<br />
|-valign="top"<br />
|DMS Chemistry<br />
|Linia Tashmim (UC Riverside)<br>William Porter (UC Riverside)<br />
|Chemistry<br />
|<br />
<br />
|-valign="top"<br />
|PPN+hv, PPN+OH<br />
|Robert Ryan (UCL)<br />
|Chemistry<br />
|<br />
<br />
|-valign="top"<br />
|MBO<br />
|Michael Vermeuel (UMN)<br />
|Chemistry<br />
|<br />
|-valign="top"<br />
|[https://github.com/geoschem/geos-chem/issues/1094 Stratospheric adjustment with RRTMG in GEOS-Chem]<br />
|Seb Eastham (MIT)<br />
|Science<br />
|<br />
<br />
|-valign="top"<br />
|Re-binning of off-line sea salt and dust for use in TOMAS<br />
|Betty Croft (Dalhousie)<br />
|Aerosols<br />
|<br />
<br />
|-valign="top"<br />
|Adaption of TOMAS' in-cloud aqueous sulfate production for KPP versus sulfate_mod.F90<br />
|Betty Croft (Dalhousie)<br />
|Aerosols<br />
|<br />
<br />
|-valign="top"<br />
|ML algorithms for bulk aerosols<br />
|Arshad Nair (SUNY Albany)<br>Fangqun Yu (SUNY Albany)<br />
|Aerosols<br />
|<br />
<br />
|-valign="top"<br />
|PM2.5 and PM10 calculations: aerodynamic vs geometric diameters<br />
|Shixian Zhai (Harvard)<br />
|Aerosols<br />
|<br />
<br />
|-valign="top"<br />
|Updates to Hodzic SOA scheme<br />
|Jared Brewer (Harvard)<br />
|Aerosols<br />
|<br />
<br />
|-valign="top"<br />
|Automated reduction in isoprene scheme<br />
|Dan Westervelt (Lamont-Doherty)<br />
|Aerosols<br />
|<br />
<br />
|-valign="top"<br />
|Brown carbon chemsitry<br />
|Jingqiu Mao (U. Alaska)<br>Xuan Wang (CUHK)<br />
|Aerosols<br />
|<br />
<br />
<br />
|-valign="top"<br />
|GEOS resolution and subgrid convection - Part 2 RAS parameter tuning<br />
|Tailong He (Toronto)<br>Dylan Jones (Toronto)<br>Andrea Molod (NASA GMAO)<br />
|Convection<br />
|<br />
<br />
|-valign="top"<br />
|Update surface methane boundary condition using NOAA flask data<br />
|Lee Murray (Rochester)<br />
|Input data<br />
|<br />
<br />
|-valign="top"<br />
|Provide recommended rather than hard-coded scaling factors for online emissions<br />
|Melissa Sulprizio (Harvard)<br />
|Emissions<br />
|<br />
<br />
|-valign="top"<br />
|High-res top-down TROPOMI-derived seasonal mean NOx emissions for China<br />
|Jintai Lin (PKU)<br />
|Emissions<br />
|Horizontal resolution: 5km, temporal resolution: JJA mean (monthly data will be available at a later stage; please contact us).<br />
<br />
|-valign="top"<br />
|Updated biomass burning emission factors and species<br />
|Tess Carter (MIT)<br />
|Emissions<br />
|<br />
<br />
|-valign="top"<br />
|Updated offline sea salt emissions<br />
|Hongjian Weng (PKU) <br> Jintai Lin (PKU)<br />
|Emissions<br />
|<br />
<br />
|-valign="top"<br />
|HgII deposition too high in 13.4; Hg0 conc too low; should not use as is<br />
|Viral Shah (NASA GMAO)<br>Yanxu Zhang (Nanjing U.)<br>Ari Feinberg (MIT)<br />
|Hg simulation<br />
|<br />
<br />
|-valign="top"<br />
|[https://gmd.copernicus.org/articles/13/2569/2020/ Canopy Physics Model]<br />
|Sam Silva (MIT)<br />
|Emissions &<br>Science<br />
|<br />
*DOI: [https://zenodo.org/record/3614062#.XzvrH5NKjOR 10.5281/zenodo.3614062]<br />
*Needs to be updated to a more recent GEOS-Chem version<br />
<br />
|-valign="top"<br />
|Gridded EPA (GEPA) version 2 emissions for 2012-2018<br />
|Bram Maasakkers (SRON)<br>Erin McDuffie (WashU),<br>Melissa Sulprizio (Harvard)<br />
|Emissions<br>CH4 simulation<br />
|<br />
<br />
|-valign="top"<br />
|Reduce dimension of analytical inversion<br />
|Hannah Nesser (Harvard)<br />
|Adjoint capability<br />
|<br />
<br />
|-valign="top"<br />
|Retire all BPCH diagnostics<br />
|Bob Yantosca (Harvard)<br />
|Diagnostics<br />
|<br />
<br />
|-valign="top"<br />
|GEOS-Chem in CESM 2.3<br />
|Lizzie Lundgren (Harvard)<br />
|Interfacing with ESMs<br />
|<br />
<br />
|-valign="top"<br />
|Assess memory leak in GCHP<br />
|Liam Bindle (WashU)<br>Killian Murphy (York)<br />
|Model performance<br />
|<br />
<br />
|-valign="top"<br />
|Point to internal state for species mixing ratios in GCHP and GEOS<br />
|Lizzie Lundgren (Harvard)<br>Christoph Keller (NASA)<br />
|Structural<br />
|<br />
<br />
|-valign="top"<br />
|Assess precision in GCHP internal state - use R4 for some?<br />
|Lizzie Lundgren (Harvard)<br />
|Structural<br />
|<br />
<br />
|-valign="top"<br />
|Hybrid MPI-OpenMP in GCHP<br />
|Seb Eastham (MIT)<br>Killian Murphy (York)<br />
|Model performance<br />
|<br />
<br />
|-valign="top"<br />
|Convert HEMCO input files to YAML<br />
|Melissa Sulprizio (Harvard)<br />
|Structural<br />
|<br />
<br />
|-valign="top"<br />
|Allow easy disabling of HEMCO emissions for testing<br />
|Melissa Sulprizio (Harvard)<br />
|Structural<br />
|<br />
<br />
|-valign="top"<br />
|Improve run directory templating and creation with init_rd.sh and shared directories<br />
|Liam Bindle (WashU)<br />
|Run directories<br />
|<br />
<br />
|-valign="top"<br />
|Expand SpeciesConc diagnostic unit options and rename<br />
|Melissa Sulprizio (Harvard)<br />
|Diagnostics<br />
|<br />
<br />
|-valign="top"<br />
|Table of CTM and online GCM properties: GCHP, GCC, GEOS-CTM, GC-Nested, online GEOS, GEOS-replay, etc <br />
|GCST?<br />
|Documentation<br />
|<br />
<br />
|-valign="top"<<br />
|Upgrade Fast-JX to Cloud-J<br />
|Lizzie Lundgren (Harvard)<br />
|Structural<br />
|<br />
|<br />
<br />
|}<br />
<br />
== Over the horizon (6-12 months) ==<br />
<br />
Features listed in this table are in development and will likely be delivered to the GEOS-Chem Support Team in the 6-12 months timeframe.<br />
<br />
{| border=1 cellspacing=0 cellpadding=5<br />
|- bgcolor="#cccccc"<br />
!width="200px"|Feature<br />
!width="200px"|Contributor(s)<br />
!width="100px"|Model scope<br />
!width="420px"|Notes and References<br />
<br />
|-valign="top"<br />
|Snow / Icy Bromine<br />
|Becky Alexander (UW)<br>William Swanson (U. Alaska)<br>Shuting Zhai (UW)<br />
|Chemistry<br />
|<br />
<br />
|-valign="top"<br />
|Monoterpene oxidation scheme<br />
|Jessica Haskins (MIT)<br />
|Chemistry<br />
|<br />
<br />
|-valign="top"<br />
|Fire related VOCs including furans<br />
|Lu Hu (UMT)<br>Lixu Jin (UMT)<br />
|Chemistry<br />
|<br />
<br />
|-valign="top"<br />
|Extension of UCX into the mesosphere<br />
|Seb Eastham (MIT)<br>Eric Fleming (NASA)<br />
|Chemistry<br />
|<br />
<br />
|-valign="top"<br />
|Methane flux ingestion<br />
|Eloise Marais (UCL)<br />
|Chemistry<br />
|<br />
<br />
|-valign="top"<br />
|Parameterized effective radius<br />
|Haihui Zhu (WashU)<br />
|Aerosols<br />
|<br />
<br />
|-valign="top"<br />
|Dust non-sphericity impacts on surface chem and optical properties<br />
|Inderjeet Singh (WashU)<br />
|Aerosols<br />
|<br />
<br />
|-valign="top"<br />
|Size-resolved stratospheric aerosol<br />
|Seb Eastham (MIT)<br />
|Aerosols<br />
|<br />
<br />
|-valign="top"<br />
|Extend aerosol settling<br />
|Eloise Marais (UCL)<br />
|Aerosols<br />
|<br />
<br />
|-valign="top"<br />
|Stratospheric aerosol APM<br />
|Fangqun Yu (SUNY)<br />
|Aerosols<br />
|<br />
<br />
|-valign="top"<br />
|Plume-in-grid model<br />
|Hongwei Sun (Harvard)<br />
|Chemistry<br />
|<br />
<br />
|-valign="top"<br />
|Updated lightning NOx: Prescribe from ground and geostationary lightning flashes<br />
|Lee Murray (Rochester)<br />
|Emissions<br />
|<br />
<br />
|-valign="top"<br />
|Seb aircraft emissions beyond recent 2019 update<br />
|Seb Eastham (MIT)<br />
|Emissions<br />
|<br />
<br />
|-valign="top"<br />
|FRP-based fire emsisions for eastern US at 0.2 deg<br />
|Charlie Fite (FSU)<br />
|Emissions<br />
|<br />
<br />
|-valign="top"<br />
|Hg iodine chemistry<br />
|Yiming Fu<br>Yanxu Zhang (Nanjing U.)<br />
|Hg simulation<br />
|<br />
<br />
|-valign="top"<br />
|Hg simulation in GCHP<br />
|Ari Feinberg (MIT)<br>Lyssa Freese (MIT)<br />
|Hg simulation<br />
|<br />
<br />
|-valign="top"<br />
|Update Hg ocean and soil boundary conditions for consistency with new chemistry<br />
|Yanxu Zhang (Nanjing U.)<br />
|Hg simulation<br />
|<br />
<br />
|-valign="top"<br />
|Dry deposition diagnostics by land cover<br />
|Holly Nowell (FSU)<br />
|Diagnostics<br />
|<br />
<br />
|-valign="top"<br />
|Dry deposition process diagnostics<br />
|Holly Nowell (FSU)<br />
|Diagnostics<br />
|<br />
<br />
|-valign="top"<br />
|Isotope simulation for CO and CH4 in GCHP<br />
|Lee Murray (Rochester)<br />
|Carbon simulation<br />
|<br />
<br />
|-valign="top"<br />
|Updated bottom-up global CH4 oil, gas, and coal emissions (GFEI v3)<br />
|Melissa Sulprizio (Harvard)<br>Tia Scarpelli (U. Edinburgh)<br>Zichong Chen (Harvard)<br />
|Emissions<br>CH4 simulation<br />
|<br />
<br />
|-valign="top"<br />
|Separate mixing and emissions<br />
|Bob Yantosca (Harvard)<br />
|Structural<br />
|<br />
<br />
|-valign="top"<br />
|Modularization of aerosols code for interface with GOCART in GEOS<br />
|Christoph Keller (GMAO)<br />
|Structural<br />
|<br />
<br />
|-valign="top"<br />
|Migrating simple SOA formation from carbon_mod.F90 into the KPP "full-chemistry" mechanism<br />
|Bob Yantosca (Harvard)<br />
|Structural<br />
|<br />
<br />
|-valign="top"<br />
|Improve load balancing in GCHP<br />
|Seb Eastham (MIT)<br />
|Model performance<br />
|<br />
<br />
|-valign="top"<br />
|Update to MAPL 3 in GCHP, including replacement of ExtData.rc with YAML file<br />
|Lizzie Lundgren (Harvard)<br />
|Structural<br />
|<br />
<br />
|-valign="top"<br />
|Assessment/improvement of OpenMP performance in GC-Classic and HEMCO standalone<br />
|Bob Yantosca (Harvard)<br />
|Model performance<br />
|<br />
<br />
|-valign="top"<br />
|Limit allocation of State_Met to what is needed per simulation<br />
|Melissa Sulprizio (Harvard)<br />
|Structural<br />
|<br />
<br />
|-valign="top"<br />
|Make frequency of HEMCO restart file configurable<br />
|Melissa Sulprizio (Harvard)<br />
|Diagnostics<br />
|<br />
<br />
|-valign="top"<br />
|Apply masks/scaling in HEMCO based on input category or flag<br />
|Melissa Sulprizio (Harvard)<br />
|Structural<br />
|<br />
<br />
|-valign="top"<br />
|Testing the use of monthly mean MERRA-2 CWC with Pb-210 aerosol tracer<br />
|Bo Zhang (NIA)<br>Hongyu Liu (NIA / NASA Langley)<br />
|Transport<br />
|<br />
<br />
|-valign="top"<br />
|Testing the use of a new scavenging parameterization developed by Luo and Yu for cold cloud with Pb-210 aerosol tracer<br />
|Gan Luo (SUNY Albany)<br>Fangqun Yu (SUNY-Albany)<br />
|Transport<br />
|<br />
<br />
|-valign="top"<br />
|Evaluate vertical mixing in GEOS-Chem with model-model and model-observation comparisons<br />
|Seb Eastham (MIT)<br>Clara Orbe (NASA GISS)<br>Andrew Schuh (CSU)<br />
|Transport<br />
|<br />
<br />
|}<br />
<br />
== Longer term (12-24 months)==<br />
<br />
Features listed in this table are in development and will likely be delivered to the GEOS-Chem Support Team in the 12-24 months timeframe.<br />
<br />
{| border=1 cellspacing=0 cellpadding=5<br />
|- bgcolor="#cccccc"<br />
!width="200px"|Feature<br />
!width="200px"|Contributor(s)<br />
!width="100px"|Model scope<br />
!width="420px"|Notes and References<br />
<br />
|-valign="top"<br />
|Updates to Aromatic chemistry<br />
|Stephen MacFarlane (UOW)<br>Jenny Fisher (UOW)<br />
|Chemistry<br />
|<br />
<br />
|-valign="top"<br />
|Nitrate photolysis<br />
|Mat Evans (York)<br>Thomas Sherwen (York)<br>Matthew Rowlinson (York)<br />
|Chemistry<br />
|<br />
<br />
|-valign="top"<br />
|In aerosol chemistry Halogens<br />
|Mat Evans (York)<br>Hansen Cao (CU Boulder)<br />
|Chemistry<br />
|<br />
<br />
|-valign="top"<br />
|Benchmark box model of GC Chemistry<br />
|Katie Travis (NASA)<br />
|Chemistry<br />
|<br />
<br />
|-valign="top"<br />
|Alkyl nitrates Alk7, PHAN<br />
|Katie Travis (NASA)<br />
|Chemistry<br />
|<br />
<br />
|-valign="top"<br />
|Add stratospheric ozone species to full-chemistry simulations<br />
|Lee Murray (Rochester)<br />
|Chemistry<br />
|<br />
<br />
|-valign="top"<br />
|Perchlorate chemistry<br />
|Yuk Chun Chan (UWAB)<br />
|Chemistry<br />
|<br />
<br />
|-valign="top"<br />
|Explicit heterogeneous sulfate chemistry<br />
|Katie Travis (NASA)<br>Becky Alexander (UT)<br />
|Chemistry<br />
|<br />
<br />
|-valign="top"<br />
|ISORROPIA-lite<br />
|Becky Alexander (UW)<br />
|Aerosols<br />
|<br />
<br />
|-valign="top"<br />
|HOx and ozone "emissions" from lightning as option in model to play with<br />
|Jingqiu (Alaska)<br>Lee Murray (Rochester)<br />
|Emissions<br />
|<br />
<br />
|-valign="top"<br />
|Sea salt aerosol from sea ice leads<br />
|Hannah Horowitz (U. Illinois)<br />
|Emissions<br />
|<br />
<br />
|-valign="top"<br />
|Drought-stress algorithm<br />
|Wei Li (U. Houston)<br />
|<br />
|<br />
<br />
|-valign="top"<br />
|Biomass burning injection height profiles<br />
|Inderjeet Singh (WashU)<br />
|Emissions<br />
|<br />
<br />
|-valign="top"<br />
|OCIM integration<br />
|Chris Holmes (FSU)<br>Lee Murray (Rochester)<br />
|<br />
|<br />
<br />
|-valign="top"<br />
|Updating landcover products in GEOS-Chem<br />
|Chris Holmes (FSU)<br>Jeff Geddes (BU)<br />
|Input data<br />
|<br />
<br />
|-valign="top"<br />
|Dry deposition physical improvement<br />
|Chris Holmes (FSU)<br />
|Dry deposition<br />
|<br />
<br />
|-valign="top"<br />
|Extend the IMI system to other trace gases<br />
|Lucas Estrada (Harvard)<br />
|Adjoint capabilities<br />
|<br />
<br />
<br />
|-valign="top"<br />
|TOMAS WRF-GC in regional Thailand simulation<br />
|Win Trivitayanurak (Chulalongkorn U)<br />
|Aerosols<br />
|<br />
<br />
|}<br />
<br />
----------------<br />
<br />
'''''[[Main_Page|GEOS-Chem Main Page]] | [[GCHP_Main_Page|GCHP Main Page]]'''''</div>Rvmartinhttps://wiki.seas.harvard.edu/geos-chem/index.php?title=GEOS-Chem_model_development_priorities&diff=51290GEOS-Chem model development priorities2022-09-12T14:43:07Z<p>Rvmartin: </p>
<hr />
<div>'''''[[Main_Page|GEOS-Chem Main Page]] | [[GCHP_Main_Page|GCHP Main Page]]'''''<br />
<br />
On this page we list the current priorities for GEOS-Chem development. This list is continuously updated based on code readiness and input from the [http://acmg.seas.harvard.edu/geos/geos_working_groups.html Working Groups] and the [http://acmg.seas.harvard.edu/geos/geos_steering_cmte.html Steering Committee]. For history of past releases see the [[GEOS-Chem_versions|GEOS-Chem Versions wiki page]].<br />
<br />
== Release schedule ==<br />
<br />
Please see the [http://wiki.seas.harvard.edu/geos-chem/images/e/e1/GEOS-Chem_Release_Proposal.pdf GEOS-Chem Release Proposal] outlining the procedure and schedule for releasing GEOS-Chem versions. <br />
<br />
== Merged and awaiting release ==<br />
<br />
See the links below for items merged and awaiting release.<br />
<br />
{| border=1 cellspacing=0 cellpadding=5 <br />
|-bgcolor="#CCCCCC"<br />
!width="200px"|Patch version in development<br />
!width="200px"|Major version in development<br />
<br />
|-valign="top"<br />
|align="center"|'''[[GEOS-Chem 14.0.1]]'''<br />
|align="center"|'''[[GEOS-Chem 14.0.0]]'''<br />
<br />
|}<br />
<br />
== Feature integration in progress ==<br />
<br />
Features listed in this table are actively being integrated into GEOS-Chem by the [[GEOS-Chem Support Team]]. In addition, we continuously implement structural updates in the model to maintain and develop coupling with other models including GEOS, CESM, and the model adjoint. <br />
<br />
{| border=1 cellspacing=0 cellpadding=5 <br />
|-bgcolor="#CCCCCC"<br />
!width="200px"|Feature<br />
!width="200px"|Contributor(s)<br />
!width="100px"|Model scope<br />
!width="100px"|Ease of implementation<br />
!width="300px"|Notes and References<br />
<br />
<br />
|-valign="top"<br />
|TOMAS in GCHP<br />
|Betty Croft (WashU)<br />
|Aerosols<br />
|Simple<br />
|See:<br />
*[https://github.com/geoschem/GCHP/pull/221 geoschem/GCHP PR #221]<br />
*[https://github.com/geoschem/geos-chem/pull/1261 geoschem/geos-chem PR #1261]<br />
*[https://github.com/geoschem/HEMCO/pull/145 geoschem/HEMCO PR #145]<br />
<br />
|-valign="top"<br />
|[https://gmd.copernicus.org/articles/13/2475/2020/gmd-13-2475-2020.pdf Adaptive chemical solver] (as option) / KPP 3.0.0<br />
|Mike Long (Harvard) <br> Haipeng Lin (Harvard) <br> Bob Yantosca (GCST) <br> Lu Shen (PKU)<br />
|Chemistry<br />
|Complicated<br />
|<br />
*Lin, H., M.S. Long, R. Sander, R.M. Yantosca, L.A. Estrada, L. Shen, and D.J. Jacob, An adaptive auto-reduction solver for speeding up integration of chemical kinetics in atmospheric chemistry models: implementation and evaluation in the Kinetic Pre-Processor (KPP) version 3.0.0, submitted to JAMES, https://doi.org/10.31223/X5505V, 2022.<br />
|-valign="top"<br />
|[https://acp.copernicus.org/articles/19/7055/2019/ Joint CO2-CO-CH4-OCS simulation via KPP]<br />
|Beata Bukosa (NIWA)<br>Kevin Bowman (JPL)<br>Mike Long (Harvard)<br />
|Specialty simulation<br />
|Medium<br />
|<br />
*[https://github.com/geoschem/geos-chem/issues/654 geoschem/geos-chem #654]<br />
<br />
|-valign="top"<br />
|RO2 diagnostic<br />
|Melissa Sulprizio (Harvard)<br />
|Diagnostics<br />
|Simple<br />
|<br />
<br />
|-valign="top"<br />
|[https://github.com/geoschem/geos-chem/issues/770 Output satellite diagnostics as NetCDF]<br />
|Eloise Marais (UCL) <br />
|Diagnostics<br />
|Simple<br />
|<br />
*See [https://github.com/geoschem/geos-chem/pull/1134 geoschem/geos-chem #1134]<br />
<br />
|-valign="top"<br />
|[https://github.com/geoschem/geos-chem/issues/331 Provide climatologies for open fire emissions]<br />
|Melissa Sulprizio (Harvard)<br />
|Emissions<br />
|Simple<br />
|<br />
<br />
|-valign="top"<br />
|[https://github.com/geoschem/geos-chem/issues/655 Climatologies for lightning NOx]<br />
|Lee Murray (Rochester)<br>Melissa Sulprizio (Harvard)<br />
|Emissions<br />
|Simple<br />
|<br />
<br />
|-valign="top"<br />
|[https://github.com/geoschem/geos-chem/discussions/1022 Add new species concentration diagnostic in units of molec/cm3]<br />
|Haipeng Lin (Harvard)<br />
|Diagnostics<br />
|Simple<br />
|<br />
*See [https://github.com/geoschem/geos-chem/pull/1264 geoschem/geos-chem PR #1264]<br />
<br />
|-valign="top"<br />
|Identify and remove memory leaks and similar issues<br />
|Bob Yantosca (Harvard)<br />
|Structural<br />
|Medium<br />
|<br />
*See [https://github.com/geoschem/geos-chem/pull/1353 github.com/geos-chem PR #1353]<br />
<br />
|-valign="top"<br />
|Upgrade Fast-JX to Cloud-J<br />
|Lizzie Lundgren (Harvard)<br />
|Structural<br />
|Complicated<br />
|<br />
*See [https://github.com/geoschem/cloud-j geoschem/cloud-j]<br />
<br />
|-valign="top"<br />
|Column diagnostics<br />
|Bob Yantosca (Harvard)<br />
|Diagnostics<br />
|Simple<br />
|<br />
<br />
|-valign="top"<br />
|Update transport tracer simulation for consistency with the tracer gridded component in GEOS<br />
|Melissa Sulprizio (Harvard)<br />
|TransportTracer simulation<br />
|Simple<br />
|<br />
<br />
|}<br />
<br />
== Delivered and in the queue ==<br />
<br />
Features listed in this table have been delivered to the GEOS-Chem Support Team and are prioritized to be integrated into GEOS-Chem in the near future.<br />
<br />
{| border=1 cellspacing=0 cellpadding=5 <br />
|-bgcolor="#CCCCCC"<br />
!width="200px"|Feature<br />
!width="200px"|Contributor(s)<br />
!width="100px"|Model scope<br />
!width="100px"|Ease of implementation<br />
!width="300px"|Notes and References<br />
<br />
|-valign="top"<br />
|TBD<br />
|<br />
|<br />
|<br />
|<br />
<br />
|}<br />
<br />
== Delivered but not yet prioritized ==<br />
<br />
Features listed in this table have been delivered to the GEOS-Chem Support Team but are not yet prioritized for integration into GEOS-Chem.<br />
<br />
{| border=1 cellspacing=0 cellpadding=5 <br />
|-bgcolor="#CCCCCC"<br />
!width="200px"|Feature<br />
!width="200px"|Contributor(s)<br />
!width="100px"|Model scope<br />
!width="100px"|Ease of implementation<br />
!width="300px"|Notes and References<br />
<br />
|-valign="top"<br />
|[https://doi.org/10.34894/SZ2KOI AMAP 2015 emissions from GMA2018]<br />
|Helene Angot(MIT)<br>Ari Feinberg (MIT)<br>Noelle Selin (MIT)<br />
|Hg simulation<br />
|Simple<br />
|<br />
* Delivered to GCST (Jul 2022)<br />
<br />
|-valign="top"<br />
|[https://github.com/geoschem/geos-chem/issues/1288 New soil NOx parameterization]<br />
|Yi Wang (U. Iowa)<br>Jun Wang (U. Iowa)<br />
|Emissions<br />
|Simple<br />
|<br />
*Delivered to GCST (Jun 2022)<br />
<br />
|-valign="top"<br />
|[https://github.com/geoschem/geos-chem/issues/1301 HTAPv3 at 0.1 deg]<br />
|Dandan Zhang (WashU)<br />
|Emissions<br />
|Simple<br />
|<br />
*Delivered to GCST (Jul 2022)<br />
<br />
|-valign-"top"<br />
|[https://github.com/arifein/pythonHgBenchmark Updated Hg benchmarking scripts in python]<br />
|Ari Feinberg (MIT)<br />
|Benchmarking<br />
|Simple<br />
|<br />
* Ideally to be incorporated in GCPy<br />
<br />
|-valign="top"<br />
|Tagged O3 simulation in GCHP<br />
|Xingpei Yu (PKU)<br />
|TagO3 simulation<br />
|Simple<br />
|<br />
*[https://github.com/geoschem/geos-chem/pull/1167 geoschem/geos-chem PR #1167]<br />
* Needs to be updated to a more recent version of GCHP<br />
<br />
|-valign="top"<br />
|[https://doi.org/10.7910/DVN/23BRII Global continental chlorine (pCl and HCl) emissions]<br />
|Bingqing Zhang (Georgia Tech)<br>Pengfei Liu (Georgia Tech)<br />
|Emissions<br />
|Simple<br />
|<br />
*Delivered to GCST (Jul 2022)<br />
<br />
|-valign="top"<br />
|[https://github.com/geoschem/geos-chem/pull/629 Ecophysiology module in GEOS-Chem for biosphere-atmosphere exchange]<br />
|Joey Lam(CUHK)<br>Amos Tai (CUHK)<br />
|Science<br />
|Simple<br />
|<br />
*Delivered to GCST (Feb 2021)<br />
* [https://github.com/geoschem/geos-chem/pull/629 geoschem/geos-chem #629]<br />
<br />
|-valign="top"<br />
|LPJ land cover (global), fire (W US), dust emissions (SW N America), 1700-2100<br />
|Yang Li (Baylor University)<br>Loretta Mickley (Harvard)<br />
|Emissions<br />
|Simple<br />
|<br />
*Data files delivered to GCST (July 2021)<br />
*Data are quite large - need to think about storage, compression<br />
<br />
|-valign="top"<br />
|[https://agupubs.onlinelibrary.wiley.com/doi/epdf/10.1029/2006GL026015 Stratospheric HCN chemistry]<br />
|Armin Kleinbohl (JPL)<br>Debra Weisenstein (Harvard, retired)<br />
|Chemistry<br />
|Medium<br />
|<br />
*Delivered to GCST (Jun 2020)<br />
<br />
|}<br />
<br />
== Ready but not delivered ==<br />
<br />
Features listed in this table are ready but have not been delivered to the GEOS-Chem Support Team.<br />
<br />
{| border=1 cellspacing=0 cellpadding=5 <br />
|-bgcolor="#CCCCCC"<br />
!width="200px"|Feature<br />
!width="200px"|Contributor(s)<br />
!width="100px"|Model scope<br />
!width="300px"|Notes and References<br />
<br />
|-valign="top"<br />
|Updating VOC fire emissions and adding lumped furan<br />
|Colette Heald (MIT)<br>Jessica Haskins (MIT)<br />
|Chemistry<br />
|<br />
* Carter, T. S., Heald, C. L., Kroll, J. H., Apel, E. C., Blake, D., Coggon, M., Edtbauer, A., Gkatzelis, G., Hornbrook, R. S., Peischl, J., Pfannerstill, E. Y., Piel, F., Reijrink, N. G., Ringsdorf, A., Warneke, C., Williams, J., Wisthaler, A., and Xu, L.: An Improved Representation of Fire Non-Methane Organic Gases (NMOGs) in Models: Emissions to Reactivity, Atmos. Chem. Phys. Discuss. [preprint], https://doi.org/10.5194/acp-2022-438, in review, 2022.<br />
<br />
|-valign="top"<br />
|Nitrate photolysis<br />
|Viral Shah (NASA GMAO)<br />
|Chemistry<br />
|<br />
* Shah, V., D.J. Jacob, R. Dang, L.N. Lamsal, S.A. Strode, S.D. Steenrod, K.F. Boersma, S.D. Eastham, T.M. Fritz, C. Thompson, J. Peischl, I. Bourgeois, I.B. Pollack, B.A. Nault, R.C. Cohen, P. Campuzano-Jost, J.L. Jimenez, S.T. Andersen, L.J. Carpenter, T. Sherwen, and M.J. Evans, Nitrogen oxides in the free troposphere: Implications for tropospheric oxidants and the interpretation of satellite NO2 measurements, EGUsphere [preprint], https://doi.org/10.5194/egusphere-2022-656, 2022.<br />
<br />
|-valign="top"<br />
|Online H2 chemistry<br />
|Maria Paula Pérez-Peña (UNSW)<br>Jenny Fisher (UOW)<br>Dylan Millet (UMN)<br />
|Chemistry<br />
|<br />
<br />
|-valign="top"<br />
|Alk4 & R4N2 chemistry<br />
|Jared Brewer (Harvard)<br />
|Chemistry<br />
|<br />
* Brewer, J.F., D.J. Jacob, S.H. Jathar, Y. He, A. Akherati, S. Zhai, D.S. Jo, A. Hodzic, B.A. Nault, P. Campuzano-Jost, J.L. Jimenez, R.J. Park, Y.J. Oak, and H. Liao, A scheme for representing aromatic secondary organic aerosols in chemical transport models: application to source attribution of organic aerosols over South Korea during the KORUS-AQ campaign, submitted to J. Geophys. Res., 2022.<br />
<br />
|-valign="top"<br />
|Organic acids (RCOOH)<br />
|Katie Travis (NASA)<br />
|Chemistry<br />
|<br />
<br />
|-valign="top"<br />
|Fix C2H4 chemistry bug<br />
|Lixu Jin (UMT)<br />
|Chemistry<br />
|<br />
* Bug issue raised by Kelvin, slated for 14.1<br />
<br />
|-valign="top"<br />
|Update reactions with new JPL & IUPAC recommendations<br />
|Kelvin Bates (Harvard)<br />
|Chemistry<br />
|<br />
* Currently running simulations to check magnitude of changes<br />
<br />
|-valign="top"<br />
|Improve carbon & nitrogen conservation in reactions<br />
|Kelvin Bates (Harvard)<br />
|Chemistry<br />
|<br />
<br />
|-valign="top"<br />
|Blowing snow sea salt in TOMAS<br />
|Betty Croft (Dalhousie)<br />
|Aerosols<br />
|<br />
<br />
|-valign="top"<br />
|Geologic emission of ethane and propane<br />
|Matthew Rowlinson and Mat Evans(York)<br />
|Emissions<br />
|<br />
* Global source from https://doi.org/10.1038/s41561-018-0073-0 with spatial distribution from https://doi.org/10.5194/essd-11-1-2019<br />
<br />
|-valign="top"<br />
|New version of CEDS at 0.1 deg<br />
|Emma Knowland (NASA)<br />
|Emissions<br />
|<br />
<br />
|-valign="top"<br />
|[https://github.com/geoschem/geos-chem/issues/550 MEIC (China regional) for 2000-2017 at 0.5x0.625 deg]<br />
|Shixian Zhai (Harvard)<br />
|Emissions<br />
|<br />
* Need permission from Qiang Zhang (Tsinghua U.) to distribute data<br />
<br />
|-valign="top"<br />
|KORUS-AQ emissions for East Asia<br />
|Katie Travis (NASA)<br />
|Emissions<br />
|<br />
* Need permission to distribute data<br />
<br />
|-valign="top"<br />
|[https://pubs.rsc.org/en/content/articlehtml/2022/em/d2em00032f Improvements in modelled Hg0 dry deposition to land]<br />
|Ari Feinberg (MIT)<br>Noelle Selin (MIT)<br>Thandolwethu Dlamini (MIT)<br>Martin Jiskra (UBasel)<br>Viral Shah (Harvard)<br />
|Hg simulation<br />
|<br />
* The study is already published and could be incorporated into the standard model as a default. Some tweaking to the reduction rate may be required as the model halogen oxidation has also been updated in v13.4.<br />
<br />
|-valign-"top"<br />
|[https://pubs.rsc.org/en/content/articlelanding/2022/EM/D2EM00019A Australian anthropogenic Hg emissions]<br />
|Stephen MacFarlane (UOW)<br>Jenny Fisher (UOW)<br> Hannah Horowitz (U. Illinois)<br>Viral Shah (Harvard)<br />
|Hg simulation<br />
|<br />
<br />
|-valign-"top"<br />
|WRF-GC Hg simulation<br />
|Xiaotian Xu (Nanjing U.)<br>Yanxu Zhang (Nanjing U.)<br />
|Hg simulation<br>WRF-GC<br />
|<br />
<br />
|-valign="top"<br />
|Updated HgII gas-partical partitioning<br />
|Kaiyun Liu (Tsinghua U.)<br>Qingru Wu (Tsinghua U.)<br>Shuxiao Wang (Tsinghua U.)<br />
|Hg simulation<br />
|<br />
* Should be option, not default<br />
<br />
|-valign="top"<br />
|Dry deposition to F90 (readability)<br />
|Chris Holmes (FSU)<br />
|Dry deposition<br />
|<br />
|}<br />
<br />
== Almost there (< 6 months) ==<br />
<br />
Features listed in this table are in development and will likely be delivered to the GEOS-Chem Support Team within the next 6 months.<br />
<br />
{|border=1 cellspacing=0 cellpadding=5<br />
|- bgcolor="#cccccc"<br />
!width="200px"|Feature<br />
!width="200px"|Contributor(s)<br />
!width="100px"|Model scope<br />
!width="420px"|Notes and References<br />
<br />
<br />
|-valign="top"<br />
|DMS Chemistry<br />
|Linia Tashmim (UC Riverside)<br>William Porter (UC Riverside)<br />
|Chemistry<br />
|<br />
<br />
|-valign="top"<br />
|PPN+hv, PPN+OH<br />
|Robert Ryan (UCL)<br />
|Chemistry<br />
|<br />
<br />
|-valign="top"<br />
|MBO<br />
|Michael Vermeuel (UMN)<br />
|Chemistry<br />
|<br />
|-valign="top"<br />
|[https://github.com/geoschem/geos-chem/issues/1094 Stratospheric adjustment with RRTMG in GEOS-Chem]<br />
|Seb Eastham (MIT)<br />
|Science<br />
|<br />
<br />
|-valign="top"<br />
|Re-binning of off-line sea salt and dust for use in TOMAS<br />
|Betty Croft (Dalhousie)<br />
|Aerosols<br />
|<br />
<br />
|-valign="top"<br />
|Adaption of TOMAS' in-cloud aqueous sulfate production for KPP versus sulfate_mod.F90<br />
|Betty Croft (Dalhousie)<br />
|Aerosols<br />
|<br />
<br />
|-valign="top"<br />
|ML algorithms for bulk aerosols<br />
|Arshad Nair (SUNY Albany)<br>Fangqun Yu (SUNY Albany)<br />
|Aerosols<br />
|<br />
<br />
|-valign="top"<br />
|PM2.5 and PM10 calculations: aerodynamic vs geometric diameters<br />
|Shixian Zhai (Harvard)<br />
|Aerosols<br />
|<br />
<br />
|-valign="top"<br />
|Updates to Hodzic SOA scheme<br />
|Jared Brewer (Harvard)<br />
|Aerosols<br />
|<br />
<br />
|-valign="top"<br />
|Automated reduction in isoprene scheme<br />
|Dan Westervelt (Lamont-Doherty)<br />
|Aerosols<br />
|<br />
<br />
|-valign="top"<br />
|Brown carbon chemsitry<br />
|Jingqiu Mao (U. Alaska)<br>Xuan Wang (CUHK)<br />
|Aerosols<br />
|<br />
<br />
<br />
|-valign="top"<br />
|GEOS resolution and subgrid convection - Part 2 RAS parameter tuning<br />
|Tailong He (Toronto)<br>Dylan Jones (Toronto)<br>Andrea Molod (NASA GMAO)<br />
|Convection<br />
|<br />
<br />
|-valign="top"<br />
|Update surface methane boundary condition using NOAA flask data<br />
|Lee Murray (Rochester)<br />
|Input data<br />
|<br />
<br />
|-valign="top"<br />
|Provide recommended rather than hard-coded scaling factors for online emissions<br />
|Melissa Sulprizio (Harvard)<br />
|Emissions<br />
|<br />
<br />
|-valign="top"<br />
|High-res top-down TROPOMI-derived seasonal mean NOx emissions for China<br />
|Jintai Lin (PKU)<br />
|Emissions<br />
|Horizontal resolution: 5km, temporal resolution: JJA mean (monthly data will be available at a later stage; please contact us).<br />
<br />
|-valign="top"<br />
|Updated biomass burning emission factors and species<br />
|Tess Carter (MIT)<br />
|Emissions<br />
|<br />
<br />
|-valign="top"<br />
|Updated offline sea salt emissions<br />
|Hongjian Weng (PKU) <br> Jintai Lin (PKU)<br />
|Emissions<br />
|<br />
<br />
|-valign="top"<br />
|HgII deposition too high in 13.4; Hg0 conc too low; should not use as is<br />
|Viral Shah (NASA GMAO)<br>Yanxu Zhang (Nanjing U.)<br>Ari Feinberg (MIT)<br />
|Hg simulation<br />
|<br />
<br />
|-valign="top"<br />
|[https://gmd.copernicus.org/articles/13/2569/2020/ Canopy Physics Model]<br />
|Sam Silva (MIT)<br />
|Emissions &<br>Science<br />
|<br />
*DOI: [https://zenodo.org/record/3614062#.XzvrH5NKjOR 10.5281/zenodo.3614062]<br />
*Needs to be updated to a more recent GEOS-Chem version<br />
<br />
|-valign="top"<br />
|Python code for processing satellite output to produce column fields using averaging kernels<br />
|Hannah Nesser (Harvard)<br>Elise Penn (Harvard)<br />
|Post-processing<br />
|<br />
<br />
|-valign="top"<br />
|Derived products from a shapefile database for oil and gas infrastructure in North America<br />
|Lee Murray (Rochester)<br />
|Post-processing<br />
|<br />
<br />
|-valign="top"<br />
|Gridded EPA (GEPA) version 2 emissions for 2012-2018<br />
|Bram Maasakkers (SRON)<br>Erin McDuffie (WashU),<br>Melissa Sulprizio (Harvard)<br />
|Emissions<br>CH4 simulation<br />
|<br />
<br />
|-valign="top"<br />
|Reduce dimension of analytical inversion<br />
|Hannah Nesser (Harvard)<br />
|Adjoint capability<br />
|<br />
<br />
|-valign="top"<br />
|Retire all BPCH diagnostics<br />
|Bob Yantosca (Harvard)<br />
|Diagnostics<br />
|<br />
<br />
|-valign="top"<br />
|GEOS-Chem in CESM 2.3<br />
|Lizzie Lundgren (Harvard)<br />
|Interfacing with ESMs<br />
|<br />
<br />
|-valign="top"<br />
|Assess memory leak in GCHP<br />
|Liam Bindle (WashU)<br>Killian Murphy (York)<br />
|Model performance<br />
|<br />
<br />
|-valign="top"<br />
|Point to internal state for species mixing ratios in GCHP and GEOS<br />
|Lizzie Lundgren (Harvard)<br>Christoph Keller (NASA)<br />
|Structural<br />
|<br />
<br />
|-valign="top"<br />
|Assess precision in GCHP internal state - use R4 for some?<br />
|Lizzie Lundgren (Harvard)<br />
|Structural<br />
|<br />
<br />
|-valign="top"<br />
|Hybrid MPI-OpenMP in GCHP<br />
|Seb Eastham (MIT)<br>Killian Murphy (York)<br />
|Model performance<br />
|<br />
<br />
|-valign="top"<br />
|Convert HEMCO input files to YAML<br />
|Melissa Sulprizio (Harvard)<br />
|Structural<br />
|<br />
<br />
|-valign="top"<br />
|Allow easy disabling of HEMCO emissions for testing<br />
|Melissa Sulprizio (Harvard)<br />
|Structural<br />
|<br />
<br />
|-valign="top"<br />
|Improve run directory templating and creation with init_rd.sh and shared directories<br />
|Liam Bindle (WashU)<br />
|Run directories<br />
|<br />
<br />
|-valign="top"<br />
|Expand SpeciesConc diagnostic unit options and rename<br />
|Melissa Sulprizio (Harvard)<br />
|Diagnostics<br />
|<br />
<br />
|-valign="top"<br />
|Incorporate tools for generating input files for Fast-J/Cloud-J and planeflight<br />
|Jared Brewer (Harvard)<br />
|Post-processing<br />
|<br />
<br />
|-valign="top"<br />
|Table of CTM and online GCM properties: GCHP, GCC, GEOS-CTM, GC-Nested, online GEOS, GEOS-replay, etc <br />
|GCST?<br />
|Documentation<br />
|<br />
<br />
|}<br />
<br />
== Over the horizon (6-12 months) ==<br />
<br />
Features listed in this table are in development and will likely be delivered to the GEOS-Chem Support Team in the 6-12 months timeframe.<br />
<br />
{| border=1 cellspacing=0 cellpadding=5<br />
|- bgcolor="#cccccc"<br />
!width="200px"|Feature<br />
!width="200px"|Contributor(s)<br />
!width="100px"|Model scope<br />
!width="420px"|Notes and References<br />
<br />
|-valign="top"<br />
|Snow / Icy Bromine<br />
|Becky Alexander (UW)<br>William Swanson (U. Alaska)<br>Shuting Zhai (UW)<br />
|Chemistry<br />
|<br />
<br />
|-valign="top"<br />
|Monoterpene oxidation scheme<br />
|Jessica Haskins (MIT)<br />
|Chemistry<br />
|<br />
<br />
|-valign="top"<br />
|Fire related VOCs including furans<br />
|Lu Hu (UMT)<br>Lixu Jin (UMT)<br />
|Chemistry<br />
|<br />
<br />
|-valign="top"<br />
|Extension of UCX into the mesosphere<br />
|Seb Eastham (MIT)<br>Eric Fleming (NASA)<br />
|Chemistry<br />
|<br />
<br />
|-valign="top"<br />
|Methane flux ingestion<br />
|Eloise Marais (UCL)<br />
|Chemistry<br />
|<br />
<br />
|-valign="top"<br />
|Parameterized effective radius<br />
|Haihui Zhu (WashU)<br />
|Aerosols<br />
|<br />
<br />
|-valign="top"<br />
|Dust non-sphericity impacts on surface chem and optical properties<br />
|Inderjeet Singh (WashU)<br />
|Aerosols<br />
|<br />
<br />
|-valign="top"<br />
|Size-resolved stratospheric aerosol<br />
|Seb Eastham (MIT)<br />
|Aerosols<br />
|<br />
<br />
|-valign="top"<br />
|Extend aerosol settling<br />
|Eloise Marais (UCL)<br />
|Aerosols<br />
|<br />
<br />
|-valign="top"<br />
|Stratospheric aerosol APM<br />
|Fangqun Yu (SUNY)<br />
|Aerosols<br />
|<br />
<br />
|-valign="top"<br />
|Plume-in-grid model<br />
|Hongwei Sun (Harvard)<br />
|Chemistry<br />
|<br />
<br />
|-valign="top"<br />
|Updated lightning NOx: Prescribe from ground and geostationary lightning flashes<br />
|Lee Murray (Rochester)<br />
|Emissions<br />
|<br />
<br />
|-valign="top"<br />
|Seb aircraft emissions beyond recent 2019 update<br />
|Seb Eastham (MIT)<br />
|Emissions<br />
|<br />
<br />
|-valign="top"<br />
|FRP-based fire emsisions for eastern US at 0.2 deg<br />
|Charlie Fite (FSU)<br />
|Emissions<br />
|<br />
<br />
|-valign="top"<br />
|Hg iodine chemistry<br />
|Yiming Fu<br>Yanxu Zhang (Nanjing U.)<br />
|Hg simulation<br />
|<br />
<br />
|-valign="top"<br />
|Hg simulation in GCHP<br />
|Ari Feinberg (MIT)<br>Lyssa Freese (MIT)<br />
|Hg simulation<br />
|<br />
<br />
|-valign="top"<br />
|Update Hg ocean and soil boundary conditions for consistency with new chemistry<br />
|Yanxu Zhang (Nanjing U.)<br />
|Hg simulation<br />
|<br />
<br />
|-valign="top"<br />
|Dry deposition diagnostics by land cover<br />
|Holly Nowell (FSU)<br />
|Diagnostics<br />
|<br />
<br />
|-valign="top"<br />
|Dry deposition process diagnostics<br />
|Holly Nowell (FSU)<br />
|Diagnostics<br />
|<br />
<br />
|-valign="top"<br />
|Isotope simulation for CO and CH4 in GCHP<br />
|Lee Murray (Rochester)<br />
|Carbon simulation<br />
|<br />
<br />
|-valign="top"<br />
|Updated bottom-up global CH4 oil, gas, and coal emissions (GFEI v3)<br />
|Melissa Sulprizio (Harvard)<br>Tia Scarpelli (U. Edinburgh)<br>Zichong Chen (Harvard)<br />
|Emissions<br>CH4 simulation<br />
|<br />
<br />
|-valign="top"<br />
|CHEEREIO EnKF<br />
|Drew Pendergrass (Harvard)<br />
|Adjoint capabilities<br />
|<br />
<br />
|-valign="top"<br />
|Separate mixing and emissions<br />
|Bob Yantosca (Harvard)<br />
|Structural<br />
|<br />
<br />
|-valign="top"<br />
|Modularization of aerosols code for interface with GOCART in GEOS<br />
|Christoph Keller (GMAO)<br />
|Structural<br />
|<br />
<br />
|-valign="top"<br />
|Migrating simple SOA formation from carbon_mod.F90 into the KPP "full-chemistry" mechanism<br />
|Bob Yantosca (Harvard)<br />
|Structural<br />
|<br />
<br />
|-valign="top"<br />
|Improve load balancing in GCHP<br />
|Seb Eastham (MIT)<br />
|Model performance<br />
|<br />
<br />
|-valign="top"<br />
|Update to MAPL 3 in GCHP, including replacement of ExtData.rc with YAML file<br />
|Lizzie Lundgren (Harvard)<br />
|Structural<br />
|<br />
<br />
|-valign="top"<br />
|Assessment/improvement of OpenMP performance in GC-Classic and HEMCO standalone<br />
|Bob Yantosca (Harvard)<br />
|Model performance<br />
|<br />
<br />
|-valign="top"<br />
|Limit allocation of State_Met to what is needed per simulation<br />
|Melissa Sulprizio (Harvard)<br />
|Structural<br />
|<br />
<br />
|-valign="top"<br />
|Make frequency of HEMCO restart file configurable<br />
|Melissa Sulprizio (Harvard)<br />
|Diagnostics<br />
|<br />
<br />
|-valign="top"<br />
|Apply masks/scaling in HEMCO based on input category or flag<br />
|Melissa Sulprizio (Harvard)<br />
|Structural<br />
|<br />
<br />
|-valign="top"<br />
|Testing the use of monthly mean MERRA-2 CWC with Pb-210 aerosol tracer<br />
|Bo Zhang (NIA)<br>Hongyu Liu (NIA / NASA Langley)<br />
|Transport<br />
|<br />
<br />
|-valign="top"<br />
|Testing the use of a new scavenging parameterization developed by Luo and Yu for cold cloud with Pb-210 aerosol tracer<br />
|Gan Luo (SUNY Albany)<br>Fangqun Yu (SUNY-Albany)<br />
|Transport<br />
|<br />
<br />
|-valign="top"<br />
|Evaluate vertical mixing in GEOS-Chem with model-model and model-observation comparisons<br />
|Seb Eastham (MIT)<br>Clara Orbe (NASA GISS)<br>Andrew Schuh (CSU)<br />
|Transport<br />
|<br />
<br />
|}<br />
<br />
== Longer term (12-24 months)==<br />
<br />
Features listed in this table are in development and will likely be delivered to the GEOS-Chem Support Team in the 12-24 months timeframe.<br />
<br />
{| border=1 cellspacing=0 cellpadding=5<br />
|- bgcolor="#cccccc"<br />
!width="200px"|Feature<br />
!width="200px"|Contributor(s)<br />
!width="100px"|Model scope<br />
!width="420px"|Notes and References<br />
<br />
|-valign="top"<br />
|Updates to Aromatic chemistry<br />
|Stephen MacFarlane (UOW)<br>Jenny Fisher (UOW)<br />
|Chemistry<br />
|<br />
<br />
|-valign="top"<br />
|Nitrate photolysis<br />
|Mat Evans (York)<br>Thomas Sherwen (York)<br>Matthew Rowlinson (York)<br />
|Chemistry<br />
|<br />
<br />
|-valign="top"<br />
|In aerosol chemistry Halogens<br />
|Mat Evans (York)<br>Hansen Cao (CU Boulder)<br />
|Chemistry<br />
|<br />
<br />
|-valign="top"<br />
|Benchmark box model of GC Chemistry<br />
|Katie Travis (NASA)<br />
|Chemistry<br />
|<br />
<br />
|-valign="top"<br />
|Alkyl nitrates Alk7, PHAN<br />
|Katie Travis (NASA)<br />
|Chemistry<br />
|<br />
<br />
|-valign="top"<br />
|Add stratospheric ozone species to full-chemistry simulations<br />
|Lee Murray (Rochester)<br />
|Chemistry<br />
|<br />
<br />
|-valign="top"<br />
|Perchlorate chemistry<br />
|Yuk Chun Chan (UWAB)<br />
|Chemistry<br />
|<br />
<br />
|-valign="top"<br />
|Explicit heterogeneous sulfate chemistry<br />
|Katie Travis (NASA)<br>Becky Alexander (UT)<br />
|Chemistry<br />
|<br />
<br />
|-valign="top"<br />
|ISORROPIA-lite<br />
|Becky Alexander (UW)<br />
|Aerosols<br />
|<br />
<br />
|-valign="top"<br />
|HOx and ozone "emissions" from lightning as option in model to play with<br />
|Jingqiu (Alaska)<br>Lee Murray (Rochester)<br />
|Emissions<br />
|<br />
<br />
|-valign="top"<br />
|Sea salt aerosol from sea ice leads<br />
|Hannah Horowitz (U. Illinois)<br />
|Emissions<br />
|<br />
<br />
|-valign="top"<br />
|Drought-stress algorithm<br />
|Wei Li (U. Houston)<br />
|<br />
|<br />
<br />
|-valign="top"<br />
|Biomass burning injection height profiles<br />
|Inderjeet Singh (WashU)<br />
|Emissions<br />
|<br />
<br />
|-valign="top"<br />
|OCIM integration<br />
|Chris Holmes (FSU)<br>Lee Murray (Rochester)<br />
|<br />
|<br />
<br />
|-valign="top"<br />
|Updating landcover products in GEOS-Chem<br />
|Chris Holmes (FSU)<br>Jeff Geddes (BU)<br />
|Input data<br />
|<br />
<br />
|-valign="top"<br />
|Dry deposition physical improvement<br />
|Chris Holmes (FSU)<br />
|Dry deposition<br />
|<br />
<br />
|-valign="top"<br />
|Extend the IMI system to other trace gases<br />
|Lucas Estrada (Harvard)<br />
|Adjoint capabilities<br />
|<br />
<br />
<br />
|-valign="top"<br />
|TOMAS WRF-GC in regional Thailand simulation<br />
|Win Trivitayanurak (Chulalongkorn U)<br />
|Aerosols<br />
|<br />
<br />
|}<br />
<br />
----------------<br />
<br />
'''''[[Main_Page|GEOS-Chem Main Page]] | [[GCHP_Main_Page|GCHP Main Page]]'''''</div>Rvmartinhttps://wiki.seas.harvard.edu/geos-chem/index.php?title=Aerosols_Working_Group&diff=31638Aerosols Working Group2017-04-13T18:31:26Z<p>Rvmartin: /* Current GEOS-Chem Aerosol Projects, alphabetized by institution (please add yours!) */</p>
<hr />
<div>All users interested in the GEOS-Chem aerosol simulations are encouraged to subscribe to the aerosols email list (click on the link in the [[#Contact information|contact information section]] below).<br />
<br />
Information on existing projects and future developments in aerosols will be posted here. We encourage user groups to keep their information up-to-date.<br />
<br />
== Contact information ==<br />
<br />
{| border=1 cellspacing=0 cellpadding=5<br />
|-valign="top"<br />
!width="300px" bgcolor="#CCCCCC"|Aerosols Working Group Co-Chairs<br />
|width="600px"|<br />
*[http://web.mit.edu/heald/www/ Colette Heald]<br />
*[http://www.ce.cmu.edu/~adams/ Peter Adams]<br />
<br />
|-valign="top"<br />
!bgcolor="#CCCCCC"|Aerosols Working Group email list<br />
|<tt>geos-chem-aerosols [at] g.harvard.edu</tt><br />
<br />
|-valign="top"<br />
!bgcolor="#CCCCCC"|To subscribe to email list<br />
|Either<br />
*Send an email to <tt>geos-chem-aerosols+subscribe [at] g.harvard.edu</tt><br />
Or<br />
*Go to the [https://groups.google.com/a/g.harvard.edu/forum/#!forum/geos-chem-aerosols GEOS-Chem Aerosols Google Group]<br />
*Click on '''Subscribe to this group'''<br />
<br />
|-valign="top"<br />
!bgcolor="#CCCCCC"|To unsubscribe from email list<br />
|Either<br />
*Send an email to <tt>geos-chem-aerosols+unsubscribe [at] g.harvard.edu</tt><br />
Or<br />
*Go to the [https://groups.google.com/a/g.harvard.edu/forum/#!forum/geos-chem-aerosols GEOS-Chem Aerosols Google Group]<br />
*Click on the '''My Settings''' button<br />
*Click on '''Leave this group'''<br />
<br />
|}<br />
<br />
--[[User:Bmy|Bob Y.]] ([[User talk:Bmy|talk]]) 16:34, 21 August 2015 (UTC)<br />
<br />
== Current GEOS-Chem Aerosol Projects, alphabetized by institution (please add yours!) ==<br />
{| border=1 cellspacing=0 cellpadding=5<br />
|- bgcolor="#cccccc"<br />
!width="150px"|User Group <br />
!width="600px"|Description <br />
!width="150px"|Contact Person<br />
!width="100px"|Date Added<br />
|-<br />
|Beijing/SUNY-Albany/L'Aquila<br />
|Representing GEOS-Chem in the AEROCOM intercomparisons<br />
|[mailto:mayfu@pku.edu.cn May Fu] <br>[mailto:fyu@albany.edu Fangqun Yu]<br>[mailto:gabriele.curci@aquila.infn.it Gabriele Curci]<br />
|28 Jul 2010<br />
|-<br />
|Columbia University<br />
|Multiphase SOA formation in GEOS-Chem<br />
|[mailto:vfm2103@columbia.edu Faye McNeill] <br />
|23 Apr 2015<br />
|-<br />
|Dalhousie<br />
|Simulation of the absorbing aerosol index<br />
|[mailto:mhammer17@hotmail.com Melanie Hammer]<br />
|26 Sep 2012<br />
|-<br />
|Dalhousie<br />
|Decadal trends in PM2.5<br />
|[mailto:ch296755@dal.ca Chi Li]<br />
|13 Apr 2017<br />
|-<br />
|Dalhousie<br />
|Arctic aerosol number distributions<br />
|[mailto:croft@mathstat.dal.ca Betty Croft]<br />
|13 Apr 2017<br />
|-<br />
|Dalhousie<br />
|Arctic black carbon <br />
|[mailto:jn231250@dal.ca Junwei Xu]<br />
|13 Apr 2017<br />
|-<br />
|Dalhousie<br />
|Metals in PM2.5 <br />
|[mailto:jn231250@dal.ca Junwei Xu]<br />
|13 Apr 2017<br />
|-<br />
|Dalhousie<br />
|Assimilation of CALIOP vertical profiles<br />
|[mailto:colin.lee@dal.ca Colin Lee]<br />
|5 Dec 2013<br />
|-<br />
|Dalhousie<br />
|Satellite-based estimates of global PM2.5<br />
|[mailto:Aaron.van.Donkelaar@dal.ca Aaron van Donkelaar]<br />
|Jun 2010<br />
|-<br />
|Dalhousie<br />
|Interpreting SPARTAN to understand PM2.5 chemical composition<br />
|[mailto:cr330325@dal.ca Crystal Weagle]<br />
|13 April 2017<br />
|-<br />
|Dalhousie<br />
|Aerosol mass scattering efficiency<br />
|[mailto:Robyn.Latimer@Dal.Ca Robyn Latimer]<br />
|13 April 2017<br />
|-<br />
|Harvard<br />
|Irreversible uptake of isoprene SOA; estimate of organic aerosol yields with satellite observations<br />
|[mailto:emarais@seas.harvard.edu Eloise Marais]<br />
|27 April 2014<br />
|-<br />
|MIT/Harvard<br />
|Implementing MOSAIC aerosols into GEOS-Chem<br />
|[mailto:seastham@mit.edu Sebastian Eastham]<br />
|11 May 2015<br />
|-<br />
|MIT<br />
|Developing a simulation of bioaerosol<br />
|[mailto:janssen@mit.edu Ruud Janssen]<br />
|12 Apr 2017<br />
|-<br />
|MIT<br />
|Exploring the impact of PM (and O3) on global crop yields<br />
|[mailto:schiferl@mit.edu Luke Schiferl]<br />
|12 Apr 2017<br />
|-<br />
|MIT<br />
|Examining decadal trends in organic aerosol<br />
|[mailto:daridley@mit.edu David Ridley]<br />
|22 Apr 2015<br />
|-<br />
|MIT<br />
|Investigating uncertainty on aerosol physical & optical properties on AOD, radiative effects, and PM2.5 from space estimates<br />
|[mailto:daridley@mit.edu David Ridley]<br />
|22 Apr 2015<br />
|-<br />
|MIT<br />
|Integrating the reactive carbon budget in GEOS-Chem <br />
|[mailto:sarahsaf@mit.edu Sarah Safieddine]<br />
|22 Apr 2015<br />
|-<br />
|MIT<br />
|Developing a simulation of brown carbon<br />
|[mailto:xuanw12@mit.edu Xuan Wang]<br />
|22 Apr 2014<br />
|-<br />
|NASA LaRC<br />
|transpacific transport of dust and sulfate; composition of Asian upper tropopause aerosol layer (ATAL).<br />
|[mailto:t.d.fairlie@nasa.gov Duncan Fairlie]<br />
|10 Apr 2013<br />
|-<br />
|SNU<br />
|Implement the VBS method in GEOS-Chem for SOA <br />
|[mailto:rjpark@snu.ac.kr Rokjin Park]<br>[mailto:cdswk@snu.ac.kr Dusung Jo]<br />
|28 Sep 2012<br />
|-<br />
|SNU<br />
|Siberian forest fire aerosols and climatic effects <br />
|[mailto:rjpark@snu.ac.kr Rokjin Park]<br>[mailto:hb3099@hotmail.com Seungeun Lee]<br />
|28 Sep 2012<br />
|-<br />
|SUNY-Albany<br />
|Effects of size-resolved aerosol microphysics on aerosol radiative forcing and chemistry<br />
|[mailto:fyu@albany.edu Fangqun Yu]<br>[mailto:gluo@albany.edu Gan Luo]<br />
|5 May 2015<br />
|-<br />
|SUNY-Albany<br />
|Key processes controlling particle formation and growth in the atmosphere and implications<br />
|[mailto:fyu@albany.edu Fangqun Yu]<br>[mailto:gluo@albany.edu Gan Luo]<br />
|5 May 2015<br />
|-<br />
|UW<br />
|Sources of sea salt aerosol in polar regions: Blowing snow and Frost flowers<br />
|[mailto:jiayue@uw.edu Jiayue Huang] <br>[mailto:jaegle@uw.edu Lyatt Jaeglé]<br />
|22 Apr 2015<br />
|-<br />
|UW<br />
|Sea salt aerosols and their effects on global tropospheric chemistry<br />
|[mailto:jaegle@uw.edu Lyatt Jaeglé]<br> [mailto:jiayue@uw.edu Jiayue Huang]<br />
|22 Apr 2015<br />
|-<br />
|-<br />
|UW<br />
|Sulfate formation via oxidation of SO2 by hypohalous acids (e.g., HOBr)<br />
|[mailto:beckya@uw.edu Becky Alexander]<br> [mailto:chenqjie@uw.edu Qianjie Chen]<br />
|22 April 2015<br />
|-<br />
|University of Wollongong<br />
|Characterizing interannual variability of Australian dust export and deposition<br />
|[mailto:jwg366@uowmail.edu.au Jesse Greenslade]<br> [mailto:jennyf@uow.edu.au Jenny Fisher]<br />
|23 April 2015<br />
|-<br />
|L'Aquila<br />
|Analysis of long-term aerosol optical properties<br />
|[mailto:gabriele.curci@aquila.infn.it Gabriele Curci]<br />
|05 May 2015<br />
|-<br />
|NIA / NASA LaRC<br />
|Radiative effects of aerosols versus clouds on key tropospheric oxidants<br />
|[mailto:Hongyu.Liu-1@nasa.gov Hongyu Liu]<br />
|5 May 2015<br />
|-<br />
|NIA / NASA LaRC<br />
|Sources and variability of tropospheric aerosols over the North Atlantic<br />
|[mailto:Hongyu.Liu-1@nasa.gov Hongyu Liu]<br />
|5 May 2015<br />
|-<br />
|UCLA<br />
|Improve black carbon simulations in GEOS-Chem; BC aging microphysics; BC-snow interaction; BC radiative properties;<br />
|[mailto:cenlinhe@atmos.ucla.edu Cenlin He]<br />
|8 May 2015<br />
|-<br />
|UCLA<br />
|Black carbon emissions, simulations and its radiative effects over the Arctic<br />
|[mailto:qiling@atmos.ucla.edu Ling Qi]<br />
|8 May 2015<br />
|-<br />
|UCLA<br />
|Improve aerosol wet scavenging and dry deposition in GEOS-Chem<br />
|[mailto:qiling@atmos.ucla.edu Ling Qi]<br>[mailto:cenlinhe@atmos.ucla.edu Cenlin He]<br />
|8 May 2015<br />
|-<br />
|}<br />
<br />
== Recent GEOS-Chem updates related to aerosols ==<br />
<br />
We have added the following updates pertaining to aerosols to recent GEOS-Chem versions: <br />
<br />
{| border=1 cellspacing=0 cellpadding=5 <br />
|-bgcolor="#CCCCCC" valign="top"<br />
!width="75px"|Version<br />
!width="75px"|Released<br />
!width="600px"|Description<br />
!width="200px"|Contact<br />
<br />
|-valign="top"<br />
|[[GEOS-Chem v11-01|v11-01]]<br />
|Jan 2017<br />
|[[GEOS-Chem species database]]<br />
|[[GEOS-Chem Support Team]]<br />
<br />
|-valign="top"<br />
|[[GEOS-Chem v11-01|v11-01]]<br />
|Jan 2017<br />
|[[Sulfate_aerosols#Update_DMS_climatology_to_Lana|Update DMS climatology to Lana]]<br />
|Tom Breider (Harvard)<br />
<br />
|-valign="top"<br />
|[[GEOS-Chem v11-01|v11-01]]<br />
|Jan 2017<br />
|[[Wet_deposition#Impaction_scavenging_for_hydrophobic_BC_and_homogeneous_IN_removal|Impaction scavenging for hydrophobic BC]]<br />
|Qiaoqiao Wang (Max Planck Institute)<br />
<br />
|-valign="top"<br />
|[[GEOS-Chem v11-01|v11-01]]<br />
|Jan 2017<br />
|[[Wet_deposition#Impaction_scavenging_for_hydrophobic_BC_and_homogeneous_IN_removal|Homogeneous IN removal]]<br />
|Qiaoqiao Wang (Max Planck Institute)<br />
<br />
|-valign="top"<br />
|[[GEOS-Chem v11-01|v11-01]]<br />
|Jan 2017<br />
|[[Aerosols_Working_Group#Organic_Aerosol_Density_.28v.10-01.29|Density of OA update]]<br />
|Melanie Hammer (Dalhousie)<br>Elo&iuml;se Marais (Harvard)<br />
<br />
|-valign="top"<br />
|[[GEOS-Chem v11-01|v11-01]]<br />
|Jan 2017<br />
|[[Mineral_dust_aerosols#Improved_dust_size_distribution_scheme|Improved dust size distribution scheme]]<br />
|Li Zhang (Colorado U.)<br>Daven Henze (Colorado U.)<br />
<br />
|-valign="top"<br />
|[[GEOS-Chem v11-01|v11-01]]<br />
|Jan 2017<br />
|[[Aerosol_optical_properties#Implementation_of_optical_properties_for_brown_carbon|Addition of BrC UV absorption to address impacts on OH]]<br />
*This feature is optional (default off)<br />
|Melanie Hammer (Dalhousie)<br />
<br />
|-valign="top"<br />
|[[GEOS-Chem v11-01|v11-01]]<br />
|Jan 2017<br />
|[[Mineral_dust_aerosols#Surface_chemistry_on_dust|Acid uptake on dust aerosols]]<br />
*This feature is optional (default off)<br />
|T. Duncan Fairlie (NASA/LARC)<br />
<br />
|-valign="top"<br />
|[[GEOS-Chem v11-01|v11-01]]<br />
|Jan 2017<br />
|[[Mineral_dust_aerosols#Now_treat_DST2-DST4_as_coarse_mode_in_wet_scavenging|Now treat DST2-DST4 as coarse mode in wet scavenging]]<br />
|T. Duncan Fairlie (NASA/LARC)<br />
<br />
|-valign="top"<br />
|[[GEOS-Chem v11-01|v11-01]]<br />
|Jan 2017<br />
|[[Aerosol emissions#Online emission of marine primary organic aerosol .28POA.29|Online emission of marine primary organic aerosol (POA)]]<br />
*This feature is optional (default off)<br />
|Brett Gantt (NCSU)<br>Matthew Johnson (NASA Ames)<br />
<br />
|-valign="top"<br />
|[[GEOS-Chem v11-01|v11-01]]<br />
|Jan 2017<br />
|[[Particulate_matter_in_GEOS-Chem#PM2.5_diagnostic|PM2.5 diagnostic]]<br />
|[[GEOS-Chem Support Team]]<br />
<br />
|-valign="top"<br />
|[[GEOS-Chem v10-01|v10-01]]<br />
|June 2015<br />
|[[HEMCO|The HEMCO emissions component]] now handles all emissions. Emissions for [[Sea salt aerosols]] and [[Mineral dust aerosols]] are now coded as HEMCO extensions.<br />
|Christoph Keller (fmr Harvard)<br>[[GCST]]<br />
<br />
|-valign="top"<br />
|[[GEOS-Chem v10-01|v10-01]]<br />
|June 2015<br />
|[[Coupling GEOS-Chem with RRTMG|Integrating a radiative transfer model into GEOS-Chem]]<br />
|David Ridley (MIT)<br />
<br />
|-valign="top"<br />
|[[GEOS-Chem v9-02|v9-02]]<br />
|Mar 2014<br />
|[[Secondary organic aerosols#SOA simulation with semi-volatile POA|Expansion of SOA option (SOA + nonvolatile POA)]]<br />
|Havala Pye (formerly Caltech, now EPA)<br />
<br />
|-valign="top"<br />
|[[GEOS-Chem v9-02|v9-02]]<br />
|Mar 2014<br />
|[[Sulfate_aerosols#Cloud_water_pH_for_sulfate_formation|Cloud water pH for sulfate formation]]<br />
|Becky Alexander (U. Washington) <br />
<br />
|-valign="top"<br />
|[[GEOS-Chem v9-02|v9-02]]<br />
|Mar 2014<br />
|[[Aerosol_optical_properties#Better_representation_of_OC_growth_with_RH_and_correction_to_sulfate_optics|Better representation of OC growth with RH and correction to sulfate optics]]<br />
|David Ridley (MIT)<br>Randall Martin (Dalhousie) <br />
<br />
|-valign="top"<br />
|[[GEOS-Chem v9-02|v9-02]]<br />
|Mar 2014<br />
|[[Aerosol_optical_properties#Fix_to_jv_spec_aod.dat|Bug fix in jv_spec_aod.dat for dust species]]<br />
|Gabriele Curci (U. L'Aquila)<br />
<br />
|-valign="top"<br />
|[[GEOS-Chem v9-02|v9-02]]<br />
|Mar 2014<br />
|[[Sea_salt_aerosols#Update_molecular_weight_of_sea_salt_tracers|Update molecular weight of sea salt tracers]]<br />
|Colette Heald (MIT) <br />
<br />
|-valign="top"<br />
|[[GEOS-Chem v9-01-03|v9-01-03]]<br />
|Sep 2012<br />
|[[Mineral_dust_aerosols#Sub-micron_dust_mass_partitioning_change|Dust submicron size distribution for optics]]<br />
|Dave Ridley, CSU<br />
<br />
|-valign="top"<br />
|[[GEOS-Chem v9-01-03|v9-01-03]]<br />
|Sep 2012<br />
|Modifications to sea salt [[Sea_salt_aerosols#SST_dependent_sea_salt_emissions|emissions]] and [[Sea_salt_aerosols#Updates_to_sea_salt_dry_deposition|dry deposition]]<br />
|Lyatt Jaegle and Becky Alexander, U Washington<br />
<br />
|-valign="top"<br />
|[[GEOS-Chem v9-01-03|v9-01-03]]<br />
|Sep 2012<br />
|Various updates to wet deposition to impact aerosol simulation, see [http://wiki.seas.harvard.edu/geos-chem/index.php/Wet_deposition#Further_updates Wet Deposition Further Updates]<br />
|Qiaoqiao Wang, Harvard<br />
<br />
|-valign="top"<br />
|[[GEOS-Chem v9-01-02|v9-01-02]]<br />
|Nov 2011<br />
|Implementation of [[APM aerosol microphysics]] model<br />
|Fangqun Yu, SUNY Albany<br>Gan Luo, SUNY Albany<br />
<br />
|-valign="top"<br />
|[[GEOS-Chem v9-01-02|v9-01-02]]<br />
|Nov 2011<br />
|[[GEOS-Chem_v9-01-01#Inconsistencies_in_aerosol_diagnostics|Removing inconsistencies in aerosol diagnostics]]<br />
|Sungshik Patrick Kim, Harvard<br />
<br />
|-valign="top"<br />
|[[GEOS-Chem v9-01-02|v9-01-02]]<br />
|Nov 2011<br />
|[[Dry_deposition#Aerosol_dry_deposition_velocities_over_snow_and_ice_surfaces|Updated aerosol dry deposition velocities over snow and ice surfaces]]<br />
|Jenny Fisher, Harvard<br />
<br />
|-valign="top"<br />
|[[GEOS-Chem v9-01-02|v9-01-02]]<br />
|Nov 2011<br />
|[[Anthropogenic_emissions#Streets_2000|Added seasonality to Streets NH3 emissions over Asia]]<br />
|Jenny Fisher, Harvard<br />
<br />
|-valign="top"<br />
|[[GEOS-Chem v9-01-01|v9-01-01]]<br />
|Jun 2011<br />
|[[FlexAOD]] post-processing tool for the community<br />
|Gabriele Curci, University of l'Aquila<br />
<br />
|}<br />
<br />
--[[User:Colette Heald|Colette Heald]] 16:14, 8 May 2015 (EST)<br />
<br />
== On-going Aerosol Working Group Developments ==<br />
<br />
We plan to add these aerosol-related updates to GEOS-Chem in the next few releases:<br />
<br />
{| border=1 cellspacing=0 cellpadding=5 <br />
|-bgcolor="#CCCCCC" valign="top"<br />
!width="600px"|Update<br />
!width="200px"|Authors<br />
!width="200px"|Planned release<br />
|-valign="top"<br />
|[[Mineral dust aerosols#Surface chemistry on dust|Simplified description of uptake of SO2, nitric acid and sulfuric acid on mineral dust]]<br />
|Duncan Fairlie, Langley<br />
|<br />
*Delivered to [[GEOS-Chem Support Team|GCST]]<br />
*Slated for inclusion into [[GEOS-Chem v10-02|v10-02]]<br />
|}<br />
<br />
--[[User:Bmy|Bob Y.]] 15:05, 25 April 2014 (EDT)<br />
<br />
== Future Development Priorities ==<br />
<br />
These are topics which were raised at IGC6 as future updates & development priorities for GEOS-Chem which have not yet been incorporated into the standard code: <br />
<br />
{| border=1 cellspacing=0 cellpadding=5 <br />
|-bgcolor="#CCCCCC" valign="top"<br />
!width="600px"|Update<br />
!width="200px"|Authors<br />
!width="200px"|Priority<br />
<br />
|-valign="top"<br />
|Addition of effective wind speed to met fields for consistent resolution dust/sea salt emissions<br />
|Jeff Pierce (CSU)<br>David Ridley (MIT)<br>[[GEOS-Chem Support Team|GCST]]<br />
|medium<br />
<br />
|-valign="top"<br />
|Addition of deposition observations to aerosol benchmark<br />
|Colette Heald (MIT)<br />
|low<br />
<br />
|-valign="top"<br />
|dust simulation expansion (tagged simulation, oxalate, P, Fe chemistry)<br />
|Matthew Johnson (NC State)<br />
|low<br />
<br />
|-valign="top"<br />
|DMS oxidation scheme updating<br />
|TBD<br />
|low<br />
<br />
|-valign="top"<br />
|Investigation of how aerosol water is treated in PM comparisons (ISORROPIA vs. hygroscopic growth curves)<br />
|TBD<br />
|low<br />
<br />
|-valign="top"<br />
|APM capability for nested grid<br />
|Fangqun Yu (SUNY Albany)<br />
|<br />
<br />
|-valign="top"<br />
|TOMAS capability for nested grid<br />
|Jeff Pierce (Dalhousie)<br />
|<br />
<br />
|-valign="top"<br />
|Tagged sulfate and nitrate simulation<br />
|Becky Alexander (U. Washington)<br />
|<br />
<br />
|-valign="top"<br />
|Improved dust simulation in nested-grid model<br />
|Rokjin Park (Seoul National University)<br />
|<br />
<br />
|}<br />
<br />
--[[User:Bmy|Bob Y.]] 15:04, 25 April 2014 (EDT)<br />
<br />
== Aerosol optical properties ==<br />
<br />
Please visit our [[Aerosol optical properties|aerosol optical properties wiki page]] for more information about:<br />
<br />
# [http://www.atmos.colostate.edu/~heald/docs/GEOS_Chem_optics_description.pdf Description of GEOS-Chem aerosol optics] <br />
# [[Aerosol optical properties#Aerosol optical properties update for GEOS-Chem v8-03-01|Aerosol optical properties update for v8-03-01]]<br />
# [[Aerosol optical properties#Aerosol optical properties at high spectral resolution|Aerosol optical properties at high spectral resolution]]<br />
<br />
Here is a list of updates that were considered when this was last reviewed in 2010 (2, 4 and 5 are included in the [[GEOS-Chem v8-03-01|v8-03-01]] update):<br />
<br />
{| border=1 cellspacing=0 cellpadding=5<br />
|- bgcolor="#cccccc"<br />
!width="600px"|Proposed Update (include information on old values if known) <br />
!width="200px"|Reference <br />
!width="200px"|Contact<br />
|-<br />
|Account for absorption in the 300-500 nm range by OC, which may be greater than presently treated. Currently we have OC ss albedo in this range being > 0.95, though it may be lower than 0.85.<br />
|[http://www.atmos-chem-phys.net/8/6665/2008/acp-8-6665-2008.pdf Barnard et al, 2008]<br />
|[mailto:daven.henze@colorado.edu Daven Henze] <br />
|-<br />
|Expand Mie table to include more wavelengths. Most literature values compare at 500 or 550 nm. Current GC lookup table includes 400, then 600. A wider range is also necessary for integrating to get total SW flux; something greater than 1500 perhaps?<br />
|[http://www.atmos-chem-phys.net/4/183/2004/acp-4-183-2004.html Martin et al, 2004]<br />
|[mailto:daven.henze@colorado.edu Daven Henze] <br />
|-<br />
|Consider using the water content of the fine mode aerosol calculated in the aerosol thermodynamic module rather than hygroscopic growth curves to estimate wet particle effective radius.<br />
|N/A<br />
|[mailto:daven.henze@colorado.edu Daven Henze] <br />
|-<br />
|Consider changing the "default" AOD diagnostic wavelength from 400 nm to 550nm (for matching with MODIS & CALIPSO)<br />
|N/A<br />
|[mailto:heald@mit.edu Colette Heald] <br />
|-<br />
|Treat the radius of hydrophylic organic aerosol similar to that of sulfate. This is based on observations that organic aerosol and sulfate are often internally mixed. Should we consider something similar for black carbon? <br />
|[http://cat.inist.fr/?aModele=afficheN&cpsidt=17219054 Rupkheti et al., 2007]<br />
|[mailto:randall.martin@dal.ca Randall Martin] <br />
|}<br />
<br />
<br />
Additional updates to aerosol optics since v8-03-01:<br />
<br />
{| border=1 cellspacing=0 cellpadding=5<br />
|- bgcolor="#cccccc"<br />
!width="600px"|Update <br />
!width="200px"|Version Number<br />
!width="200px"|Contact<br />
|-<br />
|[[GEOS-Chem_v9-01-02#Overhaul of aerosol optical depth diagnostics|Overhaul of AOD diagnostics]]<br />
|v9-01-02<br />
|Patrick Kim (Harvard)<br />
|-<br />
|[[Mineral dust aerosols#Sub-micron dust mass partitioning change|Dust submicron size distribution for optics]]<br />
|v9-01-03<br />
|David Ridley (CSU, now MIT)<br />
|-<br />
|[[Aerosol_optical_properties#Fix_to_jv_spec_aod.dat|Bug fix in jv_spec_aod.dat for dust species]]<br />
|v9-02<br />
|Gabriele Curci (l'Aquila)<br />
|-<br />
|[[Aerosol optical properties#Better representation of OC growth with RH and correction to sulfate optics|Update jv_spec.dat and jv_spec_aod.dat with better representation of OC growth with RH and correction to sulfate optics]]<br />
|v9-02<br />
|Dave Ridley (MIT) and Randall Martin (Dalhousie)<br />
|}<br />
<br />
== Related Topics ==<br />
* [[Aerosol emissions]]<br />
* Aerosol microphysics simulations:<br />
** [[APM aerosol microphysics|with APM]]<br />
** [[TOMAS aerosol microphysics|with TOMAS]]<br />
* [[Aerosol-only simulation]]<br />
* [[Aerosol thermodynamical equilibrium]]<br />
* [[Carbonaceous aerosols]]<br />
* [[Mineral dust aerosols]]<br />
* [[Secondary organic aerosols]]<br />
* [[Sea salt aerosols]]<br />
* [[Sulfate aerosols]]<br />
* [[ISORROPIA II]]<br />
* [[Photolysis mechanism|Photolysis mechanisms in GEOS-Chem]]<br />
<br />
== Issues / Topics for Discussion ==<br />
<br />
=== Organic Aerosol Density (v.10-01) ===<br />
<br />
<span style="color:green">'''''This update was validated with [[GEOS-Chem_v11-01_benchmark_history#v11-01b|1-month benchmark simulation v11-01b]] and [[GEOS-Chem_v11-01_benchmark_history#v11-01b-Run0|1-year benchmark simulation v11-01b-Run0]]. This version was approved on 19 Aug 2015.'''''</span><br />
<br />
The organic aerosol density (1800 kg/m3) for calculating aerosol optical depth in aerosol_mod.F, based on Hess et al. (1997), is outdated and not representative of organic aerosols. The value is for a generic water soluble aerosol that could include sulfate, nitrate, SOA etc. Instead, we suggest GEOS-Chem users replace this with a density of 1300 kg/m3. There are numerous references that corroborate this value, or a value between 1200-1400 kg/m3. There are too many to list, but see for example p. 5174-5175 of Hallquist et al., ACP, 2007.<br />
<br />
To make the change in aerosol_mod.F simply replace '''MSDENS(3) = 1800''' with '''MSDENS(3) = 1300''' in the RDAER subroutine. This leads to a 40% increase in organic carbon AOD.<br />
<br />
Update by Eloise Marais (Harvard) and Melanie Hammer (Dalhousie).<br />
<br />
--[[User:Emarais|Emarais]] 21:06, 6 May 2015 (EDT)<br />
<br />
=== Sedimentation of stratospheric aerosols ===<br />
<br />
<span style="color:darkorange">'''''This update is slated for inclusion in [[GEOS-Chem v11-02]].'''''</span><br />
<br />
'''''Daniel Jacob wrote:'''''<br />
<br />
:An issue has come up with our treatment of stratospheric aerosols. Seb Eastham applies sedimentation to sulfate and BC aerosols in his UCX code but he does not apply sedimentation to other aerosol species nor is his sedimentation code used in other GEOS-Chem simulations. It would be good to have consistency across aerosol types and across simulations (tropchem, RnPbBe...). <br />
<br />
--[[User:Melissa Payer|Melissa Sulprizio]] ([[User talk:Melissa Payer|talk]]) 16:38, 20 August 2015 (UTC)</div>Rvmartinhttps://wiki.seas.harvard.edu/geos-chem/index.php?title=Aerosols_Working_Group&diff=31636Aerosols Working Group2017-04-13T18:29:27Z<p>Rvmartin: /* Current GEOS-Chem Aerosol Projects, alphabetized by institution (please add yours!) */</p>
<hr />
<div>All users interested in the GEOS-Chem aerosol simulations are encouraged to subscribe to the aerosols email list (click on the link in the [[#Contact information|contact information section]] below).<br />
<br />
Information on existing projects and future developments in aerosols will be posted here. We encourage user groups to keep their information up-to-date.<br />
<br />
== Contact information ==<br />
<br />
{| border=1 cellspacing=0 cellpadding=5<br />
|-valign="top"<br />
!width="300px" bgcolor="#CCCCCC"|Aerosols Working Group Co-Chairs<br />
|width="600px"|<br />
*[http://web.mit.edu/heald/www/ Colette Heald]<br />
*[http://www.ce.cmu.edu/~adams/ Peter Adams]<br />
<br />
|-valign="top"<br />
!bgcolor="#CCCCCC"|Aerosols Working Group email list<br />
|<tt>geos-chem-aerosols [at] g.harvard.edu</tt><br />
<br />
|-valign="top"<br />
!bgcolor="#CCCCCC"|To subscribe to email list<br />
|Either<br />
*Send an email to <tt>geos-chem-aerosols+subscribe [at] g.harvard.edu</tt><br />
Or<br />
*Go to the [https://groups.google.com/a/g.harvard.edu/forum/#!forum/geos-chem-aerosols GEOS-Chem Aerosols Google Group]<br />
*Click on '''Subscribe to this group'''<br />
<br />
|-valign="top"<br />
!bgcolor="#CCCCCC"|To unsubscribe from email list<br />
|Either<br />
*Send an email to <tt>geos-chem-aerosols+unsubscribe [at] g.harvard.edu</tt><br />
Or<br />
*Go to the [https://groups.google.com/a/g.harvard.edu/forum/#!forum/geos-chem-aerosols GEOS-Chem Aerosols Google Group]<br />
*Click on the '''My Settings''' button<br />
*Click on '''Leave this group'''<br />
<br />
|}<br />
<br />
--[[User:Bmy|Bob Y.]] ([[User talk:Bmy|talk]]) 16:34, 21 August 2015 (UTC)<br />
<br />
== Current GEOS-Chem Aerosol Projects, alphabetized by institution (please add yours!) ==<br />
{| border=1 cellspacing=0 cellpadding=5<br />
|- bgcolor="#cccccc"<br />
!width="150px"|User Group <br />
!width="600px"|Description <br />
!width="150px"|Contact Person<br />
!width="100px"|Date Added<br />
|-<br />
|Beijing/SUNY-Albany/L'Aquila<br />
|Representing GEOS-Chem in the AEROCOM intercomparisons<br />
|[mailto:mayfu@pku.edu.cn May Fu] <br>[mailto:fyu@albany.edu Fangqun Yu]<br>[mailto:gabriele.curci@aquila.infn.it Gabriele Curci]<br />
|28 Jul 2010<br />
|-<br />
|Columbia University<br />
|Multiphase SOA formation in GEOS-Chem<br />
|[mailto:vfm2103@columbia.edu Faye McNeill] <br />
|23 Apr 2015<br />
|-<br />
|Dalhousie<br />
|Simulation of the absorbing aerosol index<br />
|[mailto:mhammer17@hotmail.com Melanie Hammer]<br />
|26 Sep 2012<br />
|-<br />
|Dalhousie<br />
|Decadal trends in PM2.5<br />
|[mailto:ch296755@dal.ca Chi Li]<br />
|13 Apr 2017<br />
|-<br />
|Dalhousie<br />
|Arctic aerosol number distributions<br />
|[mailto:croft@mathstat.dal.ca Betty Croft]<br />
|13 Apr 2017<br />
|-<br />
|Dalhousie<br />
|Arctic black carbon <br />
|[mailto:jn231250@dal.ca Junwei Xu]<br />
|13 Apr 2017<br />
|-<br />
|Dalhousie<br />
|Metals in PM2.5 <br />
|[mailto:jn231250@dal.ca Junwei Xu]<br />
|13 Apr 2017<br />
|-<br />
|Dalhousie<br />
|Assimilation of CALIOP vertical profiles<br />
|[mailto:colin.lee@dal.ca Colin Lee]<br />
|5 Dec 2013<br />
|-<br />
|Dalhousie<br />
|Satellite-based estimates of global PM2.5<br />
|[mailto:Aaron.van.Donkelaar@dal.ca Aaron van Donkelaar]<br />
|Jun 2010<br />
|-<br />
|Dalhousie<br />
|Interpreting SPARTAN to understand PM2.5 chemical composition<br />
|[mailto:cr330325@dal.ca Crystal Weagle]<br />
|13 April 2017<br />
|-<br />
|Harvard<br />
|Irreversible uptake of isoprene SOA; estimate of organic aerosol yields with satellite observations<br />
|[mailto:emarais@seas.harvard.edu Eloise Marais]<br />
|27 April 2014<br />
|-<br />
|MIT/Harvard<br />
|Implementing MOSAIC aerosols into GEOS-Chem<br />
|[mailto:seastham@mit.edu Sebastian Eastham]<br />
|11 May 2015<br />
|-<br />
|MIT<br />
|Developing a simulation of bioaerosol<br />
|[mailto:janssen@mit.edu Ruud Janssen]<br />
|12 Apr 2017<br />
|-<br />
|MIT<br />
|Exploring the impact of PM (and O3) on global crop yields<br />
|[mailto:schiferl@mit.edu Luke Schiferl]<br />
|12 Apr 2017<br />
|-<br />
|MIT<br />
|Examining decadal trends in organic aerosol<br />
|[mailto:daridley@mit.edu David Ridley]<br />
|22 Apr 2015<br />
|-<br />
|MIT<br />
|Investigating uncertainty on aerosol physical & optical properties on AOD, radiative effects, and PM2.5 from space estimates<br />
|[mailto:daridley@mit.edu David Ridley]<br />
|22 Apr 2015<br />
|-<br />
|MIT<br />
|Integrating the reactive carbon budget in GEOS-Chem <br />
|[mailto:sarahsaf@mit.edu Sarah Safieddine]<br />
|22 Apr 2015<br />
|-<br />
|MIT<br />
|Developing a simulation of brown carbon<br />
|[mailto:xuanw12@mit.edu Xuan Wang]<br />
|22 Apr 2014<br />
|-<br />
|NASA LaRC<br />
|transpacific transport of dust and sulfate; composition of Asian upper tropopause aerosol layer (ATAL).<br />
|[mailto:t.d.fairlie@nasa.gov Duncan Fairlie]<br />
|10 Apr 2013<br />
|-<br />
|SNU<br />
|Implement the VBS method in GEOS-Chem for SOA <br />
|[mailto:rjpark@snu.ac.kr Rokjin Park]<br>[mailto:cdswk@snu.ac.kr Dusung Jo]<br />
|28 Sep 2012<br />
|-<br />
|SNU<br />
|Siberian forest fire aerosols and climatic effects <br />
|[mailto:rjpark@snu.ac.kr Rokjin Park]<br>[mailto:hb3099@hotmail.com Seungeun Lee]<br />
|28 Sep 2012<br />
|-<br />
|SUNY-Albany<br />
|Effects of size-resolved aerosol microphysics on aerosol radiative forcing and chemistry<br />
|[mailto:fyu@albany.edu Fangqun Yu]<br>[mailto:gluo@albany.edu Gan Luo]<br />
|5 May 2015<br />
|-<br />
|SUNY-Albany<br />
|Key processes controlling particle formation and growth in the atmosphere and implications<br />
|[mailto:fyu@albany.edu Fangqun Yu]<br>[mailto:gluo@albany.edu Gan Luo]<br />
|5 May 2015<br />
|-<br />
|UW<br />
|Sources of sea salt aerosol in polar regions: Blowing snow and Frost flowers<br />
|[mailto:jiayue@uw.edu Jiayue Huang] <br>[mailto:jaegle@uw.edu Lyatt Jaeglé]<br />
|22 Apr 2015<br />
|-<br />
|UW<br />
|Sea salt aerosols and their effects on global tropospheric chemistry<br />
|[mailto:jaegle@uw.edu Lyatt Jaeglé]<br> [mailto:jiayue@uw.edu Jiayue Huang]<br />
|22 Apr 2015<br />
|-<br />
|-<br />
|UW<br />
|Sulfate formation via oxidation of SO2 by hypohalous acids (e.g., HOBr)<br />
|[mailto:beckya@uw.edu Becky Alexander]<br> [mailto:chenqjie@uw.edu Qianjie Chen]<br />
|22 April 2015<br />
|-<br />
|University of Wollongong<br />
|Characterizing interannual variability of Australian dust export and deposition<br />
|[mailto:jwg366@uowmail.edu.au Jesse Greenslade]<br> [mailto:jennyf@uow.edu.au Jenny Fisher]<br />
|23 April 2015<br />
|-<br />
|L'Aquila<br />
|Analysis of long-term aerosol optical properties<br />
|[mailto:gabriele.curci@aquila.infn.it Gabriele Curci]<br />
|05 May 2015<br />
|-<br />
|NIA / NASA LaRC<br />
|Radiative effects of aerosols versus clouds on key tropospheric oxidants<br />
|[mailto:Hongyu.Liu-1@nasa.gov Hongyu Liu]<br />
|5 May 2015<br />
|-<br />
|NIA / NASA LaRC<br />
|Sources and variability of tropospheric aerosols over the North Atlantic<br />
|[mailto:Hongyu.Liu-1@nasa.gov Hongyu Liu]<br />
|5 May 2015<br />
|-<br />
|UCLA<br />
|Improve black carbon simulations in GEOS-Chem; BC aging microphysics; BC-snow interaction; BC radiative properties;<br />
|[mailto:cenlinhe@atmos.ucla.edu Cenlin He]<br />
|8 May 2015<br />
|-<br />
|UCLA<br />
|Black carbon emissions, simulations and its radiative effects over the Arctic<br />
|[mailto:qiling@atmos.ucla.edu Ling Qi]<br />
|8 May 2015<br />
|-<br />
|UCLA<br />
|Improve aerosol wet scavenging and dry deposition in GEOS-Chem<br />
|[mailto:qiling@atmos.ucla.edu Ling Qi]<br>[mailto:cenlinhe@atmos.ucla.edu Cenlin He]<br />
|8 May 2015<br />
|-<br />
|}<br />
<br />
== Recent GEOS-Chem updates related to aerosols ==<br />
<br />
We have added the following updates pertaining to aerosols to recent GEOS-Chem versions: <br />
<br />
{| border=1 cellspacing=0 cellpadding=5 <br />
|-bgcolor="#CCCCCC" valign="top"<br />
!width="75px"|Version<br />
!width="75px"|Released<br />
!width="600px"|Description<br />
!width="200px"|Contact<br />
<br />
|-valign="top"<br />
|[[GEOS-Chem v11-01|v11-01]]<br />
|Jan 2017<br />
|[[GEOS-Chem species database]]<br />
|[[GEOS-Chem Support Team]]<br />
<br />
|-valign="top"<br />
|[[GEOS-Chem v11-01|v11-01]]<br />
|Jan 2017<br />
|[[Sulfate_aerosols#Update_DMS_climatology_to_Lana|Update DMS climatology to Lana]]<br />
|Tom Breider (Harvard)<br />
<br />
|-valign="top"<br />
|[[GEOS-Chem v11-01|v11-01]]<br />
|Jan 2017<br />
|[[Wet_deposition#Impaction_scavenging_for_hydrophobic_BC_and_homogeneous_IN_removal|Impaction scavenging for hydrophobic BC]]<br />
|Qiaoqiao Wang (Max Planck Institute)<br />
<br />
|-valign="top"<br />
|[[GEOS-Chem v11-01|v11-01]]<br />
|Jan 2017<br />
|[[Wet_deposition#Impaction_scavenging_for_hydrophobic_BC_and_homogeneous_IN_removal|Homogeneous IN removal]]<br />
|Qiaoqiao Wang (Max Planck Institute)<br />
<br />
|-valign="top"<br />
|[[GEOS-Chem v11-01|v11-01]]<br />
|Jan 2017<br />
|[[Aerosols_Working_Group#Organic_Aerosol_Density_.28v.10-01.29|Density of OA update]]<br />
|Melanie Hammer (Dalhousie)<br>Elo&iuml;se Marais (Harvard)<br />
<br />
|-valign="top"<br />
|[[GEOS-Chem v11-01|v11-01]]<br />
|Jan 2017<br />
|[[Mineral_dust_aerosols#Improved_dust_size_distribution_scheme|Improved dust size distribution scheme]]<br />
|Li Zhang (Colorado U.)<br>Daven Henze (Colorado U.)<br />
<br />
|-valign="top"<br />
|[[GEOS-Chem v11-01|v11-01]]<br />
|Jan 2017<br />
|[[Aerosol_optical_properties#Implementation_of_optical_properties_for_brown_carbon|Addition of BrC UV absorption to address impacts on OH]]<br />
*This feature is optional (default off)<br />
|Melanie Hammer (Dalhousie)<br />
<br />
|-valign="top"<br />
|[[GEOS-Chem v11-01|v11-01]]<br />
|Jan 2017<br />
|[[Mineral_dust_aerosols#Surface_chemistry_on_dust|Acid uptake on dust aerosols]]<br />
*This feature is optional (default off)<br />
|T. Duncan Fairlie (NASA/LARC)<br />
<br />
|-valign="top"<br />
|[[GEOS-Chem v11-01|v11-01]]<br />
|Jan 2017<br />
|[[Mineral_dust_aerosols#Now_treat_DST2-DST4_as_coarse_mode_in_wet_scavenging|Now treat DST2-DST4 as coarse mode in wet scavenging]]<br />
|T. Duncan Fairlie (NASA/LARC)<br />
<br />
|-valign="top"<br />
|[[GEOS-Chem v11-01|v11-01]]<br />
|Jan 2017<br />
|[[Aerosol emissions#Online emission of marine primary organic aerosol .28POA.29|Online emission of marine primary organic aerosol (POA)]]<br />
*This feature is optional (default off)<br />
|Brett Gantt (NCSU)<br>Matthew Johnson (NASA Ames)<br />
<br />
|-valign="top"<br />
|[[GEOS-Chem v11-01|v11-01]]<br />
|Jan 2017<br />
|[[Particulate_matter_in_GEOS-Chem#PM2.5_diagnostic|PM2.5 diagnostic]]<br />
|[[GEOS-Chem Support Team]]<br />
<br />
|-valign="top"<br />
|[[GEOS-Chem v10-01|v10-01]]<br />
|June 2015<br />
|[[HEMCO|The HEMCO emissions component]] now handles all emissions. Emissions for [[Sea salt aerosols]] and [[Mineral dust aerosols]] are now coded as HEMCO extensions.<br />
|Christoph Keller (fmr Harvard)<br>[[GCST]]<br />
<br />
|-valign="top"<br />
|[[GEOS-Chem v10-01|v10-01]]<br />
|June 2015<br />
|[[Coupling GEOS-Chem with RRTMG|Integrating a radiative transfer model into GEOS-Chem]]<br />
|David Ridley (MIT)<br />
<br />
|-valign="top"<br />
|[[GEOS-Chem v9-02|v9-02]]<br />
|Mar 2014<br />
|[[Secondary organic aerosols#SOA simulation with semi-volatile POA|Expansion of SOA option (SOA + nonvolatile POA)]]<br />
|Havala Pye (formerly Caltech, now EPA)<br />
<br />
|-valign="top"<br />
|[[GEOS-Chem v9-02|v9-02]]<br />
|Mar 2014<br />
|[[Sulfate_aerosols#Cloud_water_pH_for_sulfate_formation|Cloud water pH for sulfate formation]]<br />
|Becky Alexander (U. Washington) <br />
<br />
|-valign="top"<br />
|[[GEOS-Chem v9-02|v9-02]]<br />
|Mar 2014<br />
|[[Aerosol_optical_properties#Better_representation_of_OC_growth_with_RH_and_correction_to_sulfate_optics|Better representation of OC growth with RH and correction to sulfate optics]]<br />
|David Ridley (MIT)<br>Randall Martin (Dalhousie) <br />
<br />
|-valign="top"<br />
|[[GEOS-Chem v9-02|v9-02]]<br />
|Mar 2014<br />
|[[Aerosol_optical_properties#Fix_to_jv_spec_aod.dat|Bug fix in jv_spec_aod.dat for dust species]]<br />
|Gabriele Curci (U. L'Aquila)<br />
<br />
|-valign="top"<br />
|[[GEOS-Chem v9-02|v9-02]]<br />
|Mar 2014<br />
|[[Sea_salt_aerosols#Update_molecular_weight_of_sea_salt_tracers|Update molecular weight of sea salt tracers]]<br />
|Colette Heald (MIT) <br />
<br />
|-valign="top"<br />
|[[GEOS-Chem v9-01-03|v9-01-03]]<br />
|Sep 2012<br />
|[[Mineral_dust_aerosols#Sub-micron_dust_mass_partitioning_change|Dust submicron size distribution for optics]]<br />
|Dave Ridley, CSU<br />
<br />
|-valign="top"<br />
|[[GEOS-Chem v9-01-03|v9-01-03]]<br />
|Sep 2012<br />
|Modifications to sea salt [[Sea_salt_aerosols#SST_dependent_sea_salt_emissions|emissions]] and [[Sea_salt_aerosols#Updates_to_sea_salt_dry_deposition|dry deposition]]<br />
|Lyatt Jaegle and Becky Alexander, U Washington<br />
<br />
|-valign="top"<br />
|[[GEOS-Chem v9-01-03|v9-01-03]]<br />
|Sep 2012<br />
|Various updates to wet deposition to impact aerosol simulation, see [http://wiki.seas.harvard.edu/geos-chem/index.php/Wet_deposition#Further_updates Wet Deposition Further Updates]<br />
|Qiaoqiao Wang, Harvard<br />
<br />
|-valign="top"<br />
|[[GEOS-Chem v9-01-02|v9-01-02]]<br />
|Nov 2011<br />
|Implementation of [[APM aerosol microphysics]] model<br />
|Fangqun Yu, SUNY Albany<br>Gan Luo, SUNY Albany<br />
<br />
|-valign="top"<br />
|[[GEOS-Chem v9-01-02|v9-01-02]]<br />
|Nov 2011<br />
|[[GEOS-Chem_v9-01-01#Inconsistencies_in_aerosol_diagnostics|Removing inconsistencies in aerosol diagnostics]]<br />
|Sungshik Patrick Kim, Harvard<br />
<br />
|-valign="top"<br />
|[[GEOS-Chem v9-01-02|v9-01-02]]<br />
|Nov 2011<br />
|[[Dry_deposition#Aerosol_dry_deposition_velocities_over_snow_and_ice_surfaces|Updated aerosol dry deposition velocities over snow and ice surfaces]]<br />
|Jenny Fisher, Harvard<br />
<br />
|-valign="top"<br />
|[[GEOS-Chem v9-01-02|v9-01-02]]<br />
|Nov 2011<br />
|[[Anthropogenic_emissions#Streets_2000|Added seasonality to Streets NH3 emissions over Asia]]<br />
|Jenny Fisher, Harvard<br />
<br />
|-valign="top"<br />
|[[GEOS-Chem v9-01-01|v9-01-01]]<br />
|Jun 2011<br />
|[[FlexAOD]] post-processing tool for the community<br />
|Gabriele Curci, University of l'Aquila<br />
<br />
|}<br />
<br />
--[[User:Colette Heald|Colette Heald]] 16:14, 8 May 2015 (EST)<br />
<br />
== On-going Aerosol Working Group Developments ==<br />
<br />
We plan to add these aerosol-related updates to GEOS-Chem in the next few releases:<br />
<br />
{| border=1 cellspacing=0 cellpadding=5 <br />
|-bgcolor="#CCCCCC" valign="top"<br />
!width="600px"|Update<br />
!width="200px"|Authors<br />
!width="200px"|Planned release<br />
|-valign="top"<br />
|[[Mineral dust aerosols#Surface chemistry on dust|Simplified description of uptake of SO2, nitric acid and sulfuric acid on mineral dust]]<br />
|Duncan Fairlie, Langley<br />
|<br />
*Delivered to [[GEOS-Chem Support Team|GCST]]<br />
*Slated for inclusion into [[GEOS-Chem v10-02|v10-02]]<br />
|}<br />
<br />
--[[User:Bmy|Bob Y.]] 15:05, 25 April 2014 (EDT)<br />
<br />
== Future Development Priorities ==<br />
<br />
These are topics which were raised at IGC6 as future updates & development priorities for GEOS-Chem which have not yet been incorporated into the standard code: <br />
<br />
{| border=1 cellspacing=0 cellpadding=5 <br />
|-bgcolor="#CCCCCC" valign="top"<br />
!width="600px"|Update<br />
!width="200px"|Authors<br />
!width="200px"|Priority<br />
<br />
|-valign="top"<br />
|Addition of effective wind speed to met fields for consistent resolution dust/sea salt emissions<br />
|Jeff Pierce (CSU)<br>David Ridley (MIT)<br>[[GEOS-Chem Support Team|GCST]]<br />
|medium<br />
<br />
|-valign="top"<br />
|Addition of deposition observations to aerosol benchmark<br />
|Colette Heald (MIT)<br />
|low<br />
<br />
|-valign="top"<br />
|dust simulation expansion (tagged simulation, oxalate, P, Fe chemistry)<br />
|Matthew Johnson (NC State)<br />
|low<br />
<br />
|-valign="top"<br />
|DMS oxidation scheme updating<br />
|TBD<br />
|low<br />
<br />
|-valign="top"<br />
|Investigation of how aerosol water is treated in PM comparisons (ISORROPIA vs. hygroscopic growth curves)<br />
|TBD<br />
|low<br />
<br />
|-valign="top"<br />
|APM capability for nested grid<br />
|Fangqun Yu (SUNY Albany)<br />
|<br />
<br />
|-valign="top"<br />
|TOMAS capability for nested grid<br />
|Jeff Pierce (Dalhousie)<br />
|<br />
<br />
|-valign="top"<br />
|Tagged sulfate and nitrate simulation<br />
|Becky Alexander (U. Washington)<br />
|<br />
<br />
|-valign="top"<br />
|Improved dust simulation in nested-grid model<br />
|Rokjin Park (Seoul National University)<br />
|<br />
<br />
|}<br />
<br />
--[[User:Bmy|Bob Y.]] 15:04, 25 April 2014 (EDT)<br />
<br />
== Aerosol optical properties ==<br />
<br />
Please visit our [[Aerosol optical properties|aerosol optical properties wiki page]] for more information about:<br />
<br />
# [http://www.atmos.colostate.edu/~heald/docs/GEOS_Chem_optics_description.pdf Description of GEOS-Chem aerosol optics] <br />
# [[Aerosol optical properties#Aerosol optical properties update for GEOS-Chem v8-03-01|Aerosol optical properties update for v8-03-01]]<br />
# [[Aerosol optical properties#Aerosol optical properties at high spectral resolution|Aerosol optical properties at high spectral resolution]]<br />
<br />
Here is a list of updates that were considered when this was last reviewed in 2010 (2, 4 and 5 are included in the [[GEOS-Chem v8-03-01|v8-03-01]] update):<br />
<br />
{| border=1 cellspacing=0 cellpadding=5<br />
|- bgcolor="#cccccc"<br />
!width="600px"|Proposed Update (include information on old values if known) <br />
!width="200px"|Reference <br />
!width="200px"|Contact<br />
|-<br />
|Account for absorption in the 300-500 nm range by OC, which may be greater than presently treated. Currently we have OC ss albedo in this range being > 0.95, though it may be lower than 0.85.<br />
|[http://www.atmos-chem-phys.net/8/6665/2008/acp-8-6665-2008.pdf Barnard et al, 2008]<br />
|[mailto:daven.henze@colorado.edu Daven Henze] <br />
|-<br />
|Expand Mie table to include more wavelengths. Most literature values compare at 500 or 550 nm. Current GC lookup table includes 400, then 600. A wider range is also necessary for integrating to get total SW flux; something greater than 1500 perhaps?<br />
|[http://www.atmos-chem-phys.net/4/183/2004/acp-4-183-2004.html Martin et al, 2004]<br />
|[mailto:daven.henze@colorado.edu Daven Henze] <br />
|-<br />
|Consider using the water content of the fine mode aerosol calculated in the aerosol thermodynamic module rather than hygroscopic growth curves to estimate wet particle effective radius.<br />
|N/A<br />
|[mailto:daven.henze@colorado.edu Daven Henze] <br />
|-<br />
|Consider changing the "default" AOD diagnostic wavelength from 400 nm to 550nm (for matching with MODIS & CALIPSO)<br />
|N/A<br />
|[mailto:heald@mit.edu Colette Heald] <br />
|-<br />
|Treat the radius of hydrophylic organic aerosol similar to that of sulfate. This is based on observations that organic aerosol and sulfate are often internally mixed. Should we consider something similar for black carbon? <br />
|[http://cat.inist.fr/?aModele=afficheN&cpsidt=17219054 Rupkheti et al., 2007]<br />
|[mailto:randall.martin@dal.ca Randall Martin] <br />
|}<br />
<br />
<br />
Additional updates to aerosol optics since v8-03-01:<br />
<br />
{| border=1 cellspacing=0 cellpadding=5<br />
|- bgcolor="#cccccc"<br />
!width="600px"|Update <br />
!width="200px"|Version Number<br />
!width="200px"|Contact<br />
|-<br />
|[[GEOS-Chem_v9-01-02#Overhaul of aerosol optical depth diagnostics|Overhaul of AOD diagnostics]]<br />
|v9-01-02<br />
|Patrick Kim (Harvard)<br />
|-<br />
|[[Mineral dust aerosols#Sub-micron dust mass partitioning change|Dust submicron size distribution for optics]]<br />
|v9-01-03<br />
|David Ridley (CSU, now MIT)<br />
|-<br />
|[[Aerosol_optical_properties#Fix_to_jv_spec_aod.dat|Bug fix in jv_spec_aod.dat for dust species]]<br />
|v9-02<br />
|Gabriele Curci (l'Aquila)<br />
|-<br />
|[[Aerosol optical properties#Better representation of OC growth with RH and correction to sulfate optics|Update jv_spec.dat and jv_spec_aod.dat with better representation of OC growth with RH and correction to sulfate optics]]<br />
|v9-02<br />
|Dave Ridley (MIT) and Randall Martin (Dalhousie)<br />
|}<br />
<br />
== Related Topics ==<br />
* [[Aerosol emissions]]<br />
* Aerosol microphysics simulations:<br />
** [[APM aerosol microphysics|with APM]]<br />
** [[TOMAS aerosol microphysics|with TOMAS]]<br />
* [[Aerosol-only simulation]]<br />
* [[Aerosol thermodynamical equilibrium]]<br />
* [[Carbonaceous aerosols]]<br />
* [[Mineral dust aerosols]]<br />
* [[Secondary organic aerosols]]<br />
* [[Sea salt aerosols]]<br />
* [[Sulfate aerosols]]<br />
* [[ISORROPIA II]]<br />
* [[Photolysis mechanism|Photolysis mechanisms in GEOS-Chem]]<br />
<br />
== Issues / Topics for Discussion ==<br />
<br />
=== Organic Aerosol Density (v.10-01) ===<br />
<br />
<span style="color:green">'''''This update was validated with [[GEOS-Chem_v11-01_benchmark_history#v11-01b|1-month benchmark simulation v11-01b]] and [[GEOS-Chem_v11-01_benchmark_history#v11-01b-Run0|1-year benchmark simulation v11-01b-Run0]]. This version was approved on 19 Aug 2015.'''''</span><br />
<br />
The organic aerosol density (1800 kg/m3) for calculating aerosol optical depth in aerosol_mod.F, based on Hess et al. (1997), is outdated and not representative of organic aerosols. The value is for a generic water soluble aerosol that could include sulfate, nitrate, SOA etc. Instead, we suggest GEOS-Chem users replace this with a density of 1300 kg/m3. There are numerous references that corroborate this value, or a value between 1200-1400 kg/m3. There are too many to list, but see for example p. 5174-5175 of Hallquist et al., ACP, 2007.<br />
<br />
To make the change in aerosol_mod.F simply replace '''MSDENS(3) = 1800''' with '''MSDENS(3) = 1300''' in the RDAER subroutine. This leads to a 40% increase in organic carbon AOD.<br />
<br />
Update by Eloise Marais (Harvard) and Melanie Hammer (Dalhousie).<br />
<br />
--[[User:Emarais|Emarais]] 21:06, 6 May 2015 (EDT)<br />
<br />
=== Sedimentation of stratospheric aerosols ===<br />
<br />
<span style="color:darkorange">'''''This update is slated for inclusion in [[GEOS-Chem v11-02]].'''''</span><br />
<br />
'''''Daniel Jacob wrote:'''''<br />
<br />
:An issue has come up with our treatment of stratospheric aerosols. Seb Eastham applies sedimentation to sulfate and BC aerosols in his UCX code but he does not apply sedimentation to other aerosol species nor is his sedimentation code used in other GEOS-Chem simulations. It would be good to have consistency across aerosol types and across simulations (tropchem, RnPbBe...). <br />
<br />
--[[User:Melissa Payer|Melissa Sulprizio]] ([[User talk:Melissa Payer|talk]]) 16:38, 20 August 2015 (UTC)</div>Rvmartinhttps://wiki.seas.harvard.edu/geos-chem/index.php?title=Aerosols_Working_Group&diff=31634Aerosols Working Group2017-04-13T18:22:11Z<p>Rvmartin: /* Current GEOS-Chem Aerosol Projects, alphabetized by institution (please add yours!) */</p>
<hr />
<div>All users interested in the GEOS-Chem aerosol simulations are encouraged to subscribe to the aerosols email list (click on the link in the [[#Contact information|contact information section]] below).<br />
<br />
Information on existing projects and future developments in aerosols will be posted here. We encourage user groups to keep their information up-to-date.<br />
<br />
== Contact information ==<br />
<br />
{| border=1 cellspacing=0 cellpadding=5<br />
|-valign="top"<br />
!width="300px" bgcolor="#CCCCCC"|Aerosols Working Group Co-Chairs<br />
|width="600px"|<br />
*[http://web.mit.edu/heald/www/ Colette Heald]<br />
*[http://www.ce.cmu.edu/~adams/ Peter Adams]<br />
<br />
|-valign="top"<br />
!bgcolor="#CCCCCC"|Aerosols Working Group email list<br />
|<tt>geos-chem-aerosols [at] g.harvard.edu</tt><br />
<br />
|-valign="top"<br />
!bgcolor="#CCCCCC"|To subscribe to email list<br />
|Either<br />
*Send an email to <tt>geos-chem-aerosols+subscribe [at] g.harvard.edu</tt><br />
Or<br />
*Go to the [https://groups.google.com/a/g.harvard.edu/forum/#!forum/geos-chem-aerosols GEOS-Chem Aerosols Google Group]<br />
*Click on '''Subscribe to this group'''<br />
<br />
|-valign="top"<br />
!bgcolor="#CCCCCC"|To unsubscribe from email list<br />
|Either<br />
*Send an email to <tt>geos-chem-aerosols+unsubscribe [at] g.harvard.edu</tt><br />
Or<br />
*Go to the [https://groups.google.com/a/g.harvard.edu/forum/#!forum/geos-chem-aerosols GEOS-Chem Aerosols Google Group]<br />
*Click on the '''My Settings''' button<br />
*Click on '''Leave this group'''<br />
<br />
|}<br />
<br />
--[[User:Bmy|Bob Y.]] ([[User talk:Bmy|talk]]) 16:34, 21 August 2015 (UTC)<br />
<br />
== Current GEOS-Chem Aerosol Projects, alphabetized by institution (please add yours!) ==<br />
{| border=1 cellspacing=0 cellpadding=5<br />
|- bgcolor="#cccccc"<br />
!width="150px"|User Group <br />
!width="600px"|Description <br />
!width="150px"|Contact Person<br />
!width="100px"|Date Added<br />
|-<br />
|Beijing/SUNY-Albany/L'Aquila<br />
|Representing GEOS-Chem in the AEROCOM intercomparisons<br />
|[mailto:mayfu@pku.edu.cn May Fu] <br>[mailto:fyu@albany.edu Fangqun Yu]<br>[mailto:gabriele.curci@aquila.infn.it Gabriele Curci]<br />
|28 Jul 2010<br />
|-<br />
|Columbia University<br />
|Multiphase SOA formation in GEOS-Chem<br />
|[mailto:vfm2103@columbia.edu Faye McNeill] <br />
|23 Apr 2015<br />
|-<br />
|Dalhousie<br />
|Simulation of the absorbing aerosol index<br />
|[mailto:mhammer17@hotmail.com Melanie Hammer]<br />
|26 Sep 2012<br />
|-<br />
|Dalhousie<br />
|Decadal trends in PM2.5<br />
|[mailto:ch296755@dal.ca Chi Li]<br />
|13 Apr 2017<br />
|-<br />
|Dalhousie<br />
|Arctic aerosol number distributions<br />
|[mailto:croft@mathstat.dal.ca Betty Croft]<br />
|13 Apr 2017<br />
|-<br />
|Dalhousie<br />
|Arctic black carbon <br />
|[mailto:jn231250@dal.ca Junwei Xu]<br />
|13 Apr 2017<br />
|-<br />
|Dalhousie<br />
|Assimilation of CALIOP vertical profiles<br />
|[mailto:colin.lee@dal.ca Colin Lee]<br />
|5 Dec 2013<br />
|-<br />
|Dalhousie<br />
|Satellite-based estimates of Global PM2.5<br />
|[mailto:Aaron.van.Donkelaar@dal.ca Aaron van Donkelaar]<br />
|Jun 2010<br />
|-<br />
|Dalhousie<br />
|Interpreting SPARTAN to understand PM2.5 chemical composition<br />
|[mailto:cr330325@dal.ca Crystal Weagle]<br />
|13 April 2017<br />
|-<br />
|Harvard<br />
|Irreversible uptake of isoprene SOA; estimate of organic aerosol yields with satellite observations<br />
|[mailto:emarais@seas.harvard.edu Eloise Marais]<br />
|27 April 2014<br />
|-<br />
|MIT/Harvard<br />
|Implementing MOSAIC aerosols into GEOS-Chem<br />
|[mailto:seastham@mit.edu Sebastian Eastham]<br />
|11 May 2015<br />
|-<br />
|MIT<br />
|Developing a simulation of bioaerosol<br />
|[mailto:janssen@mit.edu Ruud Janssen]<br />
|12 Apr 2017<br />
|-<br />
|MIT<br />
|Exploring the impact of PM (and O3) on global crop yields<br />
|[mailto:schiferl@mit.edu Luke Schiferl]<br />
|12 Apr 2017<br />
|-<br />
|MIT<br />
|Examining decadal trends in organic aerosol<br />
|[mailto:daridley@mit.edu David Ridley]<br />
|22 Apr 2015<br />
|-<br />
|MIT<br />
|Investigating uncertainty on aerosol physical & optical properties on AOD, radiative effects, and PM2.5 from space estimates<br />
|[mailto:daridley@mit.edu David Ridley]<br />
|22 Apr 2015<br />
|-<br />
|MIT<br />
|Integrating the reactive carbon budget in GEOS-Chem <br />
|[mailto:sarahsaf@mit.edu Sarah Safieddine]<br />
|22 Apr 2015<br />
|-<br />
|MIT<br />
|Developing a simulation of brown carbon<br />
|[mailto:xuanw12@mit.edu Xuan Wang]<br />
|22 Apr 2014<br />
|-<br />
|NASA LaRC<br />
|transpacific transport of dust and sulfate; composition of Asian upper tropopause aerosol layer (ATAL).<br />
|[mailto:t.d.fairlie@nasa.gov Duncan Fairlie]<br />
|10 Apr 2013<br />
|-<br />
|SNU<br />
|Implement the VBS method in GEOS-Chem for SOA <br />
|[mailto:rjpark@snu.ac.kr Rokjin Park]<br>[mailto:cdswk@snu.ac.kr Dusung Jo]<br />
|28 Sep 2012<br />
|-<br />
|SNU<br />
|Siberian forest fire aerosols and climatic effects <br />
|[mailto:rjpark@snu.ac.kr Rokjin Park]<br>[mailto:hb3099@hotmail.com Seungeun Lee]<br />
|28 Sep 2012<br />
|-<br />
|SUNY-Albany<br />
|Effects of size-resolved aerosol microphysics on aerosol radiative forcing and chemistry<br />
|[mailto:fyu@albany.edu Fangqun Yu]<br>[mailto:gluo@albany.edu Gan Luo]<br />
|5 May 2015<br />
|-<br />
|SUNY-Albany<br />
|Key processes controlling particle formation and growth in the atmosphere and implications<br />
|[mailto:fyu@albany.edu Fangqun Yu]<br>[mailto:gluo@albany.edu Gan Luo]<br />
|5 May 2015<br />
|-<br />
|UW<br />
|Sources of sea salt aerosol in polar regions: Blowing snow and Frost flowers<br />
|[mailto:jiayue@uw.edu Jiayue Huang] <br>[mailto:jaegle@uw.edu Lyatt Jaeglé]<br />
|22 Apr 2015<br />
|-<br />
|UW<br />
|Sea salt aerosols and their effects on global tropospheric chemistry<br />
|[mailto:jaegle@uw.edu Lyatt Jaeglé]<br> [mailto:jiayue@uw.edu Jiayue Huang]<br />
|22 Apr 2015<br />
|-<br />
|-<br />
|UW<br />
|Sulfate formation via oxidation of SO2 by hypohalous acids (e.g., HOBr)<br />
|[mailto:beckya@uw.edu Becky Alexander]<br> [mailto:chenqjie@uw.edu Qianjie Chen]<br />
|22 April 2015<br />
|-<br />
|University of Wollongong<br />
|Characterizing interannual variability of Australian dust export and deposition<br />
|[mailto:jwg366@uowmail.edu.au Jesse Greenslade]<br> [mailto:jennyf@uow.edu.au Jenny Fisher]<br />
|23 April 2015<br />
|-<br />
|L'Aquila<br />
|Analysis of long-term aerosol optical properties<br />
|[mailto:gabriele.curci@aquila.infn.it Gabriele Curci]<br />
|05 May 2015<br />
|-<br />
|NIA / NASA LaRC<br />
|Radiative effects of aerosols versus clouds on key tropospheric oxidants<br />
|[mailto:Hongyu.Liu-1@nasa.gov Hongyu Liu]<br />
|5 May 2015<br />
|-<br />
|NIA / NASA LaRC<br />
|Sources and variability of tropospheric aerosols over the North Atlantic<br />
|[mailto:Hongyu.Liu-1@nasa.gov Hongyu Liu]<br />
|5 May 2015<br />
|-<br />
|UCLA<br />
|Improve black carbon simulations in GEOS-Chem; BC aging microphysics; BC-snow interaction; BC radiative properties;<br />
|[mailto:cenlinhe@atmos.ucla.edu Cenlin He]<br />
|8 May 2015<br />
|-<br />
|UCLA<br />
|Black carbon emissions, simulations and its radiative effects over the Arctic<br />
|[mailto:qiling@atmos.ucla.edu Ling Qi]<br />
|8 May 2015<br />
|-<br />
|UCLA<br />
|Improve aerosol wet scavenging and dry deposition in GEOS-Chem<br />
|[mailto:qiling@atmos.ucla.edu Ling Qi]<br>[mailto:cenlinhe@atmos.ucla.edu Cenlin He]<br />
|8 May 2015<br />
|-<br />
|}<br />
<br />
== Recent GEOS-Chem updates related to aerosols ==<br />
<br />
We have added the following updates pertaining to aerosols to recent GEOS-Chem versions: <br />
<br />
{| border=1 cellspacing=0 cellpadding=5 <br />
|-bgcolor="#CCCCCC" valign="top"<br />
!width="75px"|Version<br />
!width="75px"|Released<br />
!width="600px"|Description<br />
!width="200px"|Contact<br />
<br />
|-valign="top"<br />
|[[GEOS-Chem v11-01|v11-01]]<br />
|Jan 2017<br />
|[[GEOS-Chem species database]]<br />
|[[GEOS-Chem Support Team]]<br />
<br />
|-valign="top"<br />
|[[GEOS-Chem v11-01|v11-01]]<br />
|Jan 2017<br />
|[[Sulfate_aerosols#Update_DMS_climatology_to_Lana|Update DMS climatology to Lana]]<br />
|Tom Breider (Harvard)<br />
<br />
|-valign="top"<br />
|[[GEOS-Chem v11-01|v11-01]]<br />
|Jan 2017<br />
|[[Wet_deposition#Impaction_scavenging_for_hydrophobic_BC_and_homogeneous_IN_removal|Impaction scavenging for hydrophobic BC]]<br />
|Qiaoqiao Wang (Max Planck Institute)<br />
<br />
|-valign="top"<br />
|[[GEOS-Chem v11-01|v11-01]]<br />
|Jan 2017<br />
|[[Wet_deposition#Impaction_scavenging_for_hydrophobic_BC_and_homogeneous_IN_removal|Homogeneous IN removal]]<br />
|Qiaoqiao Wang (Max Planck Institute)<br />
<br />
|-valign="top"<br />
|[[GEOS-Chem v11-01|v11-01]]<br />
|Jan 2017<br />
|[[Aerosols_Working_Group#Organic_Aerosol_Density_.28v.10-01.29|Density of OA update]]<br />
|Melanie Hammer (Dalhousie)<br>Elo&iuml;se Marais (Harvard)<br />
<br />
|-valign="top"<br />
|[[GEOS-Chem v11-01|v11-01]]<br />
|Jan 2017<br />
|[[Mineral_dust_aerosols#Improved_dust_size_distribution_scheme|Improved dust size distribution scheme]]<br />
|Li Zhang (Colorado U.)<br>Daven Henze (Colorado U.)<br />
<br />
|-valign="top"<br />
|[[GEOS-Chem v11-01|v11-01]]<br />
|Jan 2017<br />
|[[Aerosol_optical_properties#Implementation_of_optical_properties_for_brown_carbon|Addition of BrC UV absorption to address impacts on OH]]<br />
*This feature is optional (default off)<br />
|Melanie Hammer (Dalhousie)<br />
<br />
|-valign="top"<br />
|[[GEOS-Chem v11-01|v11-01]]<br />
|Jan 2017<br />
|[[Mineral_dust_aerosols#Surface_chemistry_on_dust|Acid uptake on dust aerosols]]<br />
*This feature is optional (default off)<br />
|T. Duncan Fairlie (NASA/LARC)<br />
<br />
|-valign="top"<br />
|[[GEOS-Chem v11-01|v11-01]]<br />
|Jan 2017<br />
|[[Mineral_dust_aerosols#Now_treat_DST2-DST4_as_coarse_mode_in_wet_scavenging|Now treat DST2-DST4 as coarse mode in wet scavenging]]<br />
|T. Duncan Fairlie (NASA/LARC)<br />
<br />
|-valign="top"<br />
|[[GEOS-Chem v11-01|v11-01]]<br />
|Jan 2017<br />
|[[Aerosol emissions#Online emission of marine primary organic aerosol .28POA.29|Online emission of marine primary organic aerosol (POA)]]<br />
*This feature is optional (default off)<br />
|Brett Gantt (NCSU)<br>Matthew Johnson (NASA Ames)<br />
<br />
|-valign="top"<br />
|[[GEOS-Chem v11-01|v11-01]]<br />
|Jan 2017<br />
|[[Particulate_matter_in_GEOS-Chem#PM2.5_diagnostic|PM2.5 diagnostic]]<br />
|[[GEOS-Chem Support Team]]<br />
<br />
|-valign="top"<br />
|[[GEOS-Chem v10-01|v10-01]]<br />
|June 2015<br />
|[[HEMCO|The HEMCO emissions component]] now handles all emissions. Emissions for [[Sea salt aerosols]] and [[Mineral dust aerosols]] are now coded as HEMCO extensions.<br />
|Christoph Keller (fmr Harvard)<br>[[GCST]]<br />
<br />
|-valign="top"<br />
|[[GEOS-Chem v10-01|v10-01]]<br />
|June 2015<br />
|[[Coupling GEOS-Chem with RRTMG|Integrating a radiative transfer model into GEOS-Chem]]<br />
|David Ridley (MIT)<br />
<br />
|-valign="top"<br />
|[[GEOS-Chem v9-02|v9-02]]<br />
|Mar 2014<br />
|[[Secondary organic aerosols#SOA simulation with semi-volatile POA|Expansion of SOA option (SOA + nonvolatile POA)]]<br />
|Havala Pye (formerly Caltech, now EPA)<br />
<br />
|-valign="top"<br />
|[[GEOS-Chem v9-02|v9-02]]<br />
|Mar 2014<br />
|[[Sulfate_aerosols#Cloud_water_pH_for_sulfate_formation|Cloud water pH for sulfate formation]]<br />
|Becky Alexander (U. Washington) <br />
<br />
|-valign="top"<br />
|[[GEOS-Chem v9-02|v9-02]]<br />
|Mar 2014<br />
|[[Aerosol_optical_properties#Better_representation_of_OC_growth_with_RH_and_correction_to_sulfate_optics|Better representation of OC growth with RH and correction to sulfate optics]]<br />
|David Ridley (MIT)<br>Randall Martin (Dalhousie) <br />
<br />
|-valign="top"<br />
|[[GEOS-Chem v9-02|v9-02]]<br />
|Mar 2014<br />
|[[Aerosol_optical_properties#Fix_to_jv_spec_aod.dat|Bug fix in jv_spec_aod.dat for dust species]]<br />
|Gabriele Curci (U. L'Aquila)<br />
<br />
|-valign="top"<br />
|[[GEOS-Chem v9-02|v9-02]]<br />
|Mar 2014<br />
|[[Sea_salt_aerosols#Update_molecular_weight_of_sea_salt_tracers|Update molecular weight of sea salt tracers]]<br />
|Colette Heald (MIT) <br />
<br />
|-valign="top"<br />
|[[GEOS-Chem v9-01-03|v9-01-03]]<br />
|Sep 2012<br />
|[[Mineral_dust_aerosols#Sub-micron_dust_mass_partitioning_change|Dust submicron size distribution for optics]]<br />
|Dave Ridley, CSU<br />
<br />
|-valign="top"<br />
|[[GEOS-Chem v9-01-03|v9-01-03]]<br />
|Sep 2012<br />
|Modifications to sea salt [[Sea_salt_aerosols#SST_dependent_sea_salt_emissions|emissions]] and [[Sea_salt_aerosols#Updates_to_sea_salt_dry_deposition|dry deposition]]<br />
|Lyatt Jaegle and Becky Alexander, U Washington<br />
<br />
|-valign="top"<br />
|[[GEOS-Chem v9-01-03|v9-01-03]]<br />
|Sep 2012<br />
|Various updates to wet deposition to impact aerosol simulation, see [http://wiki.seas.harvard.edu/geos-chem/index.php/Wet_deposition#Further_updates Wet Deposition Further Updates]<br />
|Qiaoqiao Wang, Harvard<br />
<br />
|-valign="top"<br />
|[[GEOS-Chem v9-01-02|v9-01-02]]<br />
|Nov 2011<br />
|Implementation of [[APM aerosol microphysics]] model<br />
|Fangqun Yu, SUNY Albany<br>Gan Luo, SUNY Albany<br />
<br />
|-valign="top"<br />
|[[GEOS-Chem v9-01-02|v9-01-02]]<br />
|Nov 2011<br />
|[[GEOS-Chem_v9-01-01#Inconsistencies_in_aerosol_diagnostics|Removing inconsistencies in aerosol diagnostics]]<br />
|Sungshik Patrick Kim, Harvard<br />
<br />
|-valign="top"<br />
|[[GEOS-Chem v9-01-02|v9-01-02]]<br />
|Nov 2011<br />
|[[Dry_deposition#Aerosol_dry_deposition_velocities_over_snow_and_ice_surfaces|Updated aerosol dry deposition velocities over snow and ice surfaces]]<br />
|Jenny Fisher, Harvard<br />
<br />
|-valign="top"<br />
|[[GEOS-Chem v9-01-02|v9-01-02]]<br />
|Nov 2011<br />
|[[Anthropogenic_emissions#Streets_2000|Added seasonality to Streets NH3 emissions over Asia]]<br />
|Jenny Fisher, Harvard<br />
<br />
|-valign="top"<br />
|[[GEOS-Chem v9-01-01|v9-01-01]]<br />
|Jun 2011<br />
|[[FlexAOD]] post-processing tool for the community<br />
|Gabriele Curci, University of l'Aquila<br />
<br />
|}<br />
<br />
--[[User:Colette Heald|Colette Heald]] 16:14, 8 May 2015 (EST)<br />
<br />
== On-going Aerosol Working Group Developments ==<br />
<br />
We plan to add these aerosol-related updates to GEOS-Chem in the next few releases:<br />
<br />
{| border=1 cellspacing=0 cellpadding=5 <br />
|-bgcolor="#CCCCCC" valign="top"<br />
!width="600px"|Update<br />
!width="200px"|Authors<br />
!width="200px"|Planned release<br />
|-valign="top"<br />
|[[Mineral dust aerosols#Surface chemistry on dust|Simplified description of uptake of SO2, nitric acid and sulfuric acid on mineral dust]]<br />
|Duncan Fairlie, Langley<br />
|<br />
*Delivered to [[GEOS-Chem Support Team|GCST]]<br />
*Slated for inclusion into [[GEOS-Chem v10-02|v10-02]]<br />
|}<br />
<br />
--[[User:Bmy|Bob Y.]] 15:05, 25 April 2014 (EDT)<br />
<br />
== Future Development Priorities ==<br />
<br />
These are topics which were raised at IGC6 as future updates & development priorities for GEOS-Chem which have not yet been incorporated into the standard code: <br />
<br />
{| border=1 cellspacing=0 cellpadding=5 <br />
|-bgcolor="#CCCCCC" valign="top"<br />
!width="600px"|Update<br />
!width="200px"|Authors<br />
!width="200px"|Priority<br />
<br />
|-valign="top"<br />
|Addition of effective wind speed to met fields for consistent resolution dust/sea salt emissions<br />
|Jeff Pierce (CSU)<br>David Ridley (MIT)<br>[[GEOS-Chem Support Team|GCST]]<br />
|medium<br />
<br />
|-valign="top"<br />
|Addition of deposition observations to aerosol benchmark<br />
|Colette Heald (MIT)<br />
|low<br />
<br />
|-valign="top"<br />
|dust simulation expansion (tagged simulation, oxalate, P, Fe chemistry)<br />
|Matthew Johnson (NC State)<br />
|low<br />
<br />
|-valign="top"<br />
|DMS oxidation scheme updating<br />
|TBD<br />
|low<br />
<br />
|-valign="top"<br />
|Investigation of how aerosol water is treated in PM comparisons (ISORROPIA vs. hygroscopic growth curves)<br />
|TBD<br />
|low<br />
<br />
|-valign="top"<br />
|APM capability for nested grid<br />
|Fangqun Yu (SUNY Albany)<br />
|<br />
<br />
|-valign="top"<br />
|TOMAS capability for nested grid<br />
|Jeff Pierce (Dalhousie)<br />
|<br />
<br />
|-valign="top"<br />
|Tagged sulfate and nitrate simulation<br />
|Becky Alexander (U. Washington)<br />
|<br />
<br />
|-valign="top"<br />
|Improved dust simulation in nested-grid model<br />
|Rokjin Park (Seoul National University)<br />
|<br />
<br />
|}<br />
<br />
--[[User:Bmy|Bob Y.]] 15:04, 25 April 2014 (EDT)<br />
<br />
== Aerosol optical properties ==<br />
<br />
Please visit our [[Aerosol optical properties|aerosol optical properties wiki page]] for more information about:<br />
<br />
# [http://www.atmos.colostate.edu/~heald/docs/GEOS_Chem_optics_description.pdf Description of GEOS-Chem aerosol optics] <br />
# [[Aerosol optical properties#Aerosol optical properties update for GEOS-Chem v8-03-01|Aerosol optical properties update for v8-03-01]]<br />
# [[Aerosol optical properties#Aerosol optical properties at high spectral resolution|Aerosol optical properties at high spectral resolution]]<br />
<br />
Here is a list of updates that were considered when this was last reviewed in 2010 (2, 4 and 5 are included in the [[GEOS-Chem v8-03-01|v8-03-01]] update):<br />
<br />
{| border=1 cellspacing=0 cellpadding=5<br />
|- bgcolor="#cccccc"<br />
!width="600px"|Proposed Update (include information on old values if known) <br />
!width="200px"|Reference <br />
!width="200px"|Contact<br />
|-<br />
|Account for absorption in the 300-500 nm range by OC, which may be greater than presently treated. Currently we have OC ss albedo in this range being > 0.95, though it may be lower than 0.85.<br />
|[http://www.atmos-chem-phys.net/8/6665/2008/acp-8-6665-2008.pdf Barnard et al, 2008]<br />
|[mailto:daven.henze@colorado.edu Daven Henze] <br />
|-<br />
|Expand Mie table to include more wavelengths. Most literature values compare at 500 or 550 nm. Current GC lookup table includes 400, then 600. A wider range is also necessary for integrating to get total SW flux; something greater than 1500 perhaps?<br />
|[http://www.atmos-chem-phys.net/4/183/2004/acp-4-183-2004.html Martin et al, 2004]<br />
|[mailto:daven.henze@colorado.edu Daven Henze] <br />
|-<br />
|Consider using the water content of the fine mode aerosol calculated in the aerosol thermodynamic module rather than hygroscopic growth curves to estimate wet particle effective radius.<br />
|N/A<br />
|[mailto:daven.henze@colorado.edu Daven Henze] <br />
|-<br />
|Consider changing the "default" AOD diagnostic wavelength from 400 nm to 550nm (for matching with MODIS & CALIPSO)<br />
|N/A<br />
|[mailto:heald@mit.edu Colette Heald] <br />
|-<br />
|Treat the radius of hydrophylic organic aerosol similar to that of sulfate. This is based on observations that organic aerosol and sulfate are often internally mixed. Should we consider something similar for black carbon? <br />
|[http://cat.inist.fr/?aModele=afficheN&cpsidt=17219054 Rupkheti et al., 2007]<br />
|[mailto:randall.martin@dal.ca Randall Martin] <br />
|}<br />
<br />
<br />
Additional updates to aerosol optics since v8-03-01:<br />
<br />
{| border=1 cellspacing=0 cellpadding=5<br />
|- bgcolor="#cccccc"<br />
!width="600px"|Update <br />
!width="200px"|Version Number<br />
!width="200px"|Contact<br />
|-<br />
|[[GEOS-Chem_v9-01-02#Overhaul of aerosol optical depth diagnostics|Overhaul of AOD diagnostics]]<br />
|v9-01-02<br />
|Patrick Kim (Harvard)<br />
|-<br />
|[[Mineral dust aerosols#Sub-micron dust mass partitioning change|Dust submicron size distribution for optics]]<br />
|v9-01-03<br />
|David Ridley (CSU, now MIT)<br />
|-<br />
|[[Aerosol_optical_properties#Fix_to_jv_spec_aod.dat|Bug fix in jv_spec_aod.dat for dust species]]<br />
|v9-02<br />
|Gabriele Curci (l'Aquila)<br />
|-<br />
|[[Aerosol optical properties#Better representation of OC growth with RH and correction to sulfate optics|Update jv_spec.dat and jv_spec_aod.dat with better representation of OC growth with RH and correction to sulfate optics]]<br />
|v9-02<br />
|Dave Ridley (MIT) and Randall Martin (Dalhousie)<br />
|}<br />
<br />
== Related Topics ==<br />
* [[Aerosol emissions]]<br />
* Aerosol microphysics simulations:<br />
** [[APM aerosol microphysics|with APM]]<br />
** [[TOMAS aerosol microphysics|with TOMAS]]<br />
* [[Aerosol-only simulation]]<br />
* [[Aerosol thermodynamical equilibrium]]<br />
* [[Carbonaceous aerosols]]<br />
* [[Mineral dust aerosols]]<br />
* [[Secondary organic aerosols]]<br />
* [[Sea salt aerosols]]<br />
* [[Sulfate aerosols]]<br />
* [[ISORROPIA II]]<br />
* [[Photolysis mechanism|Photolysis mechanisms in GEOS-Chem]]<br />
<br />
== Issues / Topics for Discussion ==<br />
<br />
=== Organic Aerosol Density (v.10-01) ===<br />
<br />
<span style="color:green">'''''This update was validated with [[GEOS-Chem_v11-01_benchmark_history#v11-01b|1-month benchmark simulation v11-01b]] and [[GEOS-Chem_v11-01_benchmark_history#v11-01b-Run0|1-year benchmark simulation v11-01b-Run0]]. This version was approved on 19 Aug 2015.'''''</span><br />
<br />
The organic aerosol density (1800 kg/m3) for calculating aerosol optical depth in aerosol_mod.F, based on Hess et al. (1997), is outdated and not representative of organic aerosols. The value is for a generic water soluble aerosol that could include sulfate, nitrate, SOA etc. Instead, we suggest GEOS-Chem users replace this with a density of 1300 kg/m3. There are numerous references that corroborate this value, or a value between 1200-1400 kg/m3. There are too many to list, but see for example p. 5174-5175 of Hallquist et al., ACP, 2007.<br />
<br />
To make the change in aerosol_mod.F simply replace '''MSDENS(3) = 1800''' with '''MSDENS(3) = 1300''' in the RDAER subroutine. This leads to a 40% increase in organic carbon AOD.<br />
<br />
Update by Eloise Marais (Harvard) and Melanie Hammer (Dalhousie).<br />
<br />
--[[User:Emarais|Emarais]] 21:06, 6 May 2015 (EDT)<br />
<br />
=== Sedimentation of stratospheric aerosols ===<br />
<br />
<span style="color:darkorange">'''''This update is slated for inclusion in [[GEOS-Chem v11-02]].'''''</span><br />
<br />
'''''Daniel Jacob wrote:'''''<br />
<br />
:An issue has come up with our treatment of stratospheric aerosols. Seb Eastham applies sedimentation to sulfate and BC aerosols in his UCX code but he does not apply sedimentation to other aerosol species nor is his sedimentation code used in other GEOS-Chem simulations. It would be good to have consistency across aerosol types and across simulations (tropchem, RnPbBe...). <br />
<br />
--[[User:Melissa Payer|Melissa Sulprizio]] ([[User talk:Melissa Payer|talk]]) 16:38, 20 August 2015 (UTC)</div>Rvmartinhttps://wiki.seas.harvard.edu/geos-chem/index.php?title=Aerosols_Working_Group&diff=20718Aerosols Working Group2015-04-25T16:46:38Z<p>Rvmartin: /* Current GEOS-Chem Aerosol Projects, alphabetized by institution (please add yours!) */</p>
<hr />
<div>All users interested in the GEOS-Chem aerosol simulations are encouraged to subscribe to the aerosols email list (click on the link in the [[#Contact information|contact information section]] below).<br />
<br />
Information on existing projects and future developments in aerosols will be posted here. We encourage user groups to keep their information up-to-date.<br />
<br />
== Contact information ==<br />
<br />
{| border=1 cellspacing=0 cellpadding=5<br />
|-<br />
|bgcolor="#CCCCCC"|'''Aerosols Working Group Co-Chairs'''<br />
|[http://web.mit.edu/heald/www/ Colette Heald], [http://pierce.atmos.colostate.edu/ Jeff Pierce]<br />
|-<br />
|bgcolor="#CCCCCC"|'''Aerosols Working Group email list'''<br />
|<tt>geos-chem-aerosols [at] seas.harvard.edu</tt><br />
|-<br />
|bgcolor="#CCCCCC"|'''To subscribe to email list'''<br />
|Send email to <tt>geos-chem-aerosols-join [at] seas.harvard.edu</tt><br />
|-<br />
|bgcolor="#CCCCCC"|'''To unsubscribe from email list'''<br />
|Send email to <tt>geos-chem-aerosols-leave [at] seas.harvard.edu</tt><br />
|}<br />
<br />
== Current GEOS-Chem Aerosol Projects, alphabetized by institution (please add yours!) ==<br />
{| border=1 cellspacing=0 cellpadding=5<br />
|- bgcolor="#cccccc"<br />
!width="150px"|User Group <br />
!width="600px"|Description <br />
!width="150px"|Contact Person<br />
!width="100px"|Date Added<br />
|-<br />
|Beijing/SUNY<br />
|Representing GEOS-Chem in the AEROCOM intercomparisons<br />
|[mailto:mayfu@pku.edu.cn May Fu] <br>[mailto:yfq@asrc.cestm.albany.edu Fangqun Yu]<br />
|28 Jul 2010<br />
|-<br />
|Columbia University<br />
|Multiphase SOA formation in GEOS-Chem<br />
|[mailto:vfm2103@columbia.edu Faye McNeill] <br />
|23 Apr 2015<br />
|-<br />
|Dalhousie<br />
|Simulation of the absorbing aerosol index<br />
|[mailto:mhammer17@hotmail.com Melanie Hammer]<br />
|26 Sep 2012<br />
|-<br />
|Dalhousie<br />
|Aerosol microphysics simulation of AOD and PM2.5<br />
|[mailto:AR731886@DAL.CA Arjya Sarkar]<br />
|26 Sep 2012<br />
|-<br />
|Dalhousie<br />
|Arctic aerosol<br />
|[mailto:croft@mathstat.dal.ca Betty Croft]<br />
|25 Apr 2015<br />
|-<br />
|Dalhousie<br />
|Satellite-based estimates of Asian PM2.5<br />
|[mailto:jn231250@dal.ca Junwei Xu]<br />
|26 Sep 2012<br />
|-<br />
|Dalhousie<br />
|Assimilation of CALIOP vertical profiles<br />
|[mailto:colin.lee@dal.ca Colin Lee]<br />
|5 Dec 2013<br />
|-<br />
|Dalhousie<br />
|Satellite-based estimates of Global PM2.5<br />
|[mailto:Aaron.van.Donkelaar@dal.ca Aaron van Donkelaar]<br />
|Jun 2010<br />
|-<br />
|Harvard<br />
|Irreversible uptake of isoprene SOA; estimate of organic aerosol yields with satellite observations<br />
|[mailto:emarais@seas.harvard.edu Eloise Marais]<br />
|27 April 2014<br />
|-<br />
|MIT<br />
|Examining decadal trends in organic aerosol<br />
|[mailto:daridley@mit.edu Dave Ridley]<br />
|22 Apr 2015<br />
|-<br />
|MIT<br />
|Investigating uncertainty on aerosol physical & optical properties on AOD, radiative effects, and PM2.5 from space estimates<br />
|[mailto:daridley@mit.edu Dave Ridley]<br />
|22 Apr 2015<br />
|-<br />
|MIT<br />
|Integrating the reactive carbon budget in GEOS-Chem <br />
|[mailto:sarahsaf@mit.edu Sarah Safieddine]<br />
|22 Apr 2015<br />
|-<br />
|MIT<br />
|Investigating Variability in Ammonia and Impacts on Inorganic PM formation <br />
|[mailto:schiferl@mit.edu Luke Schiferl]<br />
|22 Apr 2015<br />
|-<br />
|MIT<br />
|Investigating the impact of land use change on atmospheric composition<br />
|[mailto:samsilva@mit.edu Sam Silva]<br />
|22 Apr 2015<br />
|-<br />
|MIT<br />
|Developing a simulation of brown carbon<br />
|[mailto:xuanw12@mit.edu Xuan Wang]<br />
|22 Apr 2014<br />
|-<br />
|MIT<br />
|Developing a scheme to describe the aging of organic aerosol<br />
|[mailto:qichen@mit.edu Qi Chen]<br />
|8 Apr 2013<br />
|-<br />
|MIT/Dalhousie<br />
|Developing a flexible land use module for GEOS-Chem and investigating the impacts of forest mortality on air quality in the United States<br />
|[mailto:jgeddes@mit.edu Jeff Geddes]<br />
|22 Apr 2015<br />
|-<br />
|MIT/CSU <br />
|Characterizing the uncertainties in PM2.5 derived from satellite observations<br />
|[mailto:bonne@atmos.colostate.edu Bonne Ford]<br />
|22 Apr 2015<br />
|-<br />
|NASA LaRC<br />
|transpacific transport of dust and sulfate; composition of Asian upper tropopause aerosol layer (ATAL).<br />
|[mailto:t.d.fairlie@nasa.gov Duncan Fairlie]<br />
|10 Apr 2013<br />
|-<br />
|SNU<br />
|Implement the VBS method in GEOS-Chem for SOA <br />
|[mailto:rjpark@snu.ac.kr Rokjin Park]<br>[mailto:cdswk@snu.ac.kr Dusung Jo]<br />
|28 Sep 2012<br />
|-<br />
|SNU<br />
|Siberian forest fire aerosols and climatic effects <br />
|[mailto:rjpark@snu.ac.kr Rokjin Park]<br>[mailto:hb3099@hotmail.com Seungeun Lee]<br />
|28 Sep 2012<br />
|-<br />
|UW<br />
|Sources of sea salt aerosol in polar regions: Blowing snow and Frost flowers<br />
|[mailto:jiayue@uw.edu Jiayue Huang] <br>[mailto:jaegle@uw.edu Lyatt Jaeglé]<br />
|22 Apr 2015<br />
|-<br />
|UW<br />
|Sea salt aerosols and their effects on global tropospheric chemistry<br />
|[mailto:jaegle@uw.edu Lyatt Jaeglé]<br> [mailto:jiayue@uw.edu Jiayue Huang]<br />
|22 Apr 2015<br />
|-<br />
|-<br />
|UW<br />
|Sulfate formation via oxidation of SO2 by hypohalous acids (e.g., HOBr)<br />
|[mailto:beckya@uw.edu Becky Alexander]<br> [mailto:chenqjie@uw.edu Qianjie Chen]<br />
|22 April 2015<br />
|-<br />
|University of Wollongong<br />
|Characterizing interannual variability of Australian dust export and deposition<br />
|[mailto:jwg366@uowmail.edu.au Jesse Greenslade]<br> [mailto:jennyf@uow.edu.au Jenny Fisher]<br />
|23 April 2015<br />
|-<br />
|}<br />
<br />
== Recent GEOS-Chem updates related to aerosols ==<br />
<br />
We have added the following updates pertaining to aerosols to recent GEOS-Chem versions: <br />
<br />
{| border=1 cellspacing=0 cellpadding=5 <br />
|-bgcolor="#CCCCCC" valign="top"<br />
!width="75px"|Version<br />
!width="75px"|Released<br />
!width="600px"|Description<br />
!width="200px"|Contact<br />
|-valign="top"<br />
|[[GEOS-Chem v9-02|v9-02]]<br />
|Mar 2014<br />
|[[Secondary organic aerosols#SOA simulation with semi-volatile POA|Expansion of SOA option (SOA + nonvolatile POA)]]<br />
|Havala Pye (formerly Caltech, now EPA)<br />
<br />
|-valign="top"<br />
|[[GEOS-Chem v9-02|v9-02]]<br />
|Mar 2014<br />
|[[Sulfate_aerosols#Cloud_water_pH_for_sulfate_formation|Cloud water pH for sulfate formation]]<br />
|Becky Alexander (U. Washington) <br />
<br />
|-valign="top"<br />
|[[GEOS-Chem v9-02|v9-02]]<br />
|Mar 2014<br />
|[[Aerosol_optical_properties#Better_representation_of_OC_growth_with_RH_and_correction_to_sulfate_optics|Better representation of OC growth with RH and correction to sulfate optics]]<br />
|David Ridley (MIT)<br>Randall Martin (Dalhousie) <br />
<br />
|-valign="top"<br />
|[[GEOS-Chem v9-02|v9-02]]<br />
|Mar 2014<br />
|[[Aerosol_optical_properties#Fix_to_jv_spec_aod.dat|Bug fix in jv_spec_aod.dat for dust species]]<br />
|Gabriele Curci (U. L'Aquila)<br />
<br />
|-valign="top"<br />
|[[GEOS-Chem v9-02|v9-02]]<br />
|Mar 2014<br />
|[[Sea_salt_aerosols#Update_molecular_weight_of_sea_salt_tracers|Update molecular weight of sea salt tracers]]<br />
|Colette Heald (MIT) <br />
<br />
|-valign="top"<br />
|[[GEOS-Chem v9-01-03|v9-01-03]]<br />
|Sep 2012<br />
|[[Mineral_dust_aerosols#Sub-micron_dust_mass_partitioning_change|Dust submicron size distribution for optics]]<br />
|Dave Ridley, CSU<br />
<br />
|-valign="top"<br />
|[[GEOS-Chem v9-01-03|v9-01-03]]<br />
|Sep 2012<br />
|Modifications to sea salt [[Sea_salt_aerosols#SST_dependent_sea_salt_emissions|emissions]] and [[Sea_salt_aerosols#Updates_to_sea_salt_dry_deposition|dry deposition]]<br />
|Lyatt Jaegle and Becky Alexander, U Washington<br />
<br />
|-valign="top"<br />
|[[GEOS-Chem v9-01-03|v9-01-03]]<br />
|Sep 2012<br />
|Various updates to wet deposition to impact aerosol simulation, see [http://wiki.seas.harvard.edu/geos-chem/index.php/Wet_deposition#Further_updates Wet Deposition Further Updates]<br />
|Qiaoqiao Wang, Harvard<br />
<br />
|-valign="top"<br />
|[[GEOS-Chem v9-01-02|v9-01-02]]<br />
|Nov 2011<br />
|Implementation of [[APM aerosol microphysics]] model<br />
|Fangqun Yu, SUNY Albany<br>Gan Luo, SUNY Albany<br />
<br />
|-valign="top"<br />
|[[GEOS-Chem v9-01-02|v9-01-02]]<br />
|Nov 2011<br />
|[[GEOS-Chem_v9-01-01#Inconsistencies_in_aerosol_diagnostics|Removing inconsistencies in aerosol diagnostics]]<br />
|Sungshik Patrick Kim, Harvard<br />
<br />
|-valign="top"<br />
|[[GEOS-Chem v9-01-02|v9-01-02]]<br />
|Nov 2011<br />
|[[Dry_deposition#Aerosol_dry_deposition_velocities_over_snow_and_ice_surfaces|Updated aerosol dry deposition velocities over snow and ice surfaces]]<br />
|Jenny Fisher, Harvard<br />
<br />
|-valign="top"<br />
|[[GEOS-Chem v9-01-02|v9-01-02]]<br />
|Nov 2011<br />
|[[Anthropogenic_emissions#Streets_2000|Added seasonality to Streets NH3 emissions over Asia]]<br />
|Jenny Fisher, Harvard<br />
<br />
|-valign="top"<br />
|[[GEOS-Chem v9-01-01|v9-01-01]]<br />
|Jun 2011<br />
|[[FlexAOD]] post-processing tool for the community<br />
|Gabriele Curci, University of l'Aquila<br />
<br />
|}<br />
<br />
--[[User:Melissa Payer|Melissa Sulprizio]] 11:14, 17 January 2014 (EST)<br />
<br />
== On-going Aerosol Working Group Developments ==<br />
<br />
We plan to add these aerosol-related updates to GEOS-Chem in the next few releases:<br />
<br />
{| border=1 cellspacing=0 cellpadding=5 <br />
|-bgcolor="#CCCCCC" valign="top"<br />
!width="600px"|Update<br />
!width="200px"|Authors<br />
!width="200px"|Planned release<br />
|-valign="top"<br />
|[[Coupling GEOS-Chem with RRTMG|Integrating a radiative transfer model into GEOS-Chem]]<br />
|Colette Heald (MIT)<br>David Ridley (MIT)<br>Karen Cady-Pereira (AER)<br>Matt Alvarado (AER)<br />
|<br />
*Delivered to [[GEOS-Chem Support Team|GCST]]<br />
*Slated for inclusion into [[GEOS-Chem v10-01|v10-01]]<br />
|-valign="top"<br />
|[[Mineral dust aerosols#Surface chemistry on dust|Simplified description of uptake of SO2, nitric acid and sulfuric acid on mineral dust]]<br />
|Duncan Fairlie, Langley<br />
|<br />
*Delivered to [[GEOS-Chem Support Team|GCST]]<br />
*Slated for inclusion into [[GEOS-Chem v10-01|v10-01]]<br />
|}<br />
<br />
--[[User:Bmy|Bob Y.]] 15:05, 25 April 2014 (EDT)<br />
<br />
== Future Development Priorities ==<br />
<br />
These are topics which were raised at IGC6 as future updates & development priorities for GEOS-Chem which have not yet been incorporated into the standard code: <br />
<br />
{| border=1 cellspacing=0 cellpadding=5 <br />
|-bgcolor="#CCCCCC" valign="top"<br />
!width="600px"|Update<br />
!width="200px"|Authors<br />
!width="200px"|Priority<br />
<br />
|-valign="top"<br />
|Addition of effective wind speed to met fields for consistent resolution dust/sea salt emissions<br />
|Jeff Pierce (CSU)<br>David Ridley (MIT)<br>[[GEOS-Chem Support Team|GCST]]<br />
|medium<br />
<br />
|-valign="top"<br />
|Addition of deposition observations to aerosol benchmark<br />
|Colette Heald (MIT)<br />
|low<br />
<br />
|-valign="top"<br />
|dust simulation expansion (tagged simulation, oxalate, P, Fe chemistry)<br />
|Matthew Johnson (NC State)<br />
|low<br />
<br />
|-valign="top"<br />
|DMS oxidation scheme updating<br />
|TBD<br />
|low<br />
<br />
|-valign="top"<br />
|Investigation of how aerosol water is treated in PM comparisons (ISORROPIA vs. hygroscopic growth curves)<br />
|TBD<br />
|low<br />
<br />
|-valign="top"<br />
|APM capability for nested grid<br />
|Fangqun Yu (SUNY Albany)<br />
|<br />
<br />
|-valign="top"<br />
|TOMAS capability for nested grid<br />
|Jeff Pierce (Dalhousie)<br />
|<br />
<br />
|-valign="top"<br />
|Tagged sulfate and nitrate simulation<br />
|Becky Alexander (U. Washington)<br />
|<br />
<br />
|-valign="top"<br />
|Improved dust simulation in nested-grid model<br />
|Rokjin Park (Seoul National University)<br />
|<br />
<br />
|}<br />
<br />
--[[User:Bmy|Bob Y.]] 15:04, 25 April 2014 (EDT)<br />
<br />
== Aerosol optical properties ==<br />
<br />
Please visit our [[Aerosol optical properties|aerosol optical properties wiki page]] for more information about:<br />
<br />
# [http://www.atmos.colostate.edu/~heald/docs/GEOS_Chem_optics_description.pdf Description of GEOS-Chem aerosol optics] <br />
# [[Aerosol optical properties#Aerosol optical properties update for GEOS-Chem v8-03-01|Aerosol optical properties update for v8-03-01]]<br />
# [[Aerosol optical properties#Aerosol optical properties at high spectral resolution|Aerosol optical properties at high spectral resolution]]<br />
<br />
Here is a list of updates that were considered when this was last reviewed in 2010 (2, 4 and 5 are included in the [[GEOS-Chem v8-03-01|v8-03-01]] update):<br />
<br />
{| border=1 cellspacing=0 cellpadding=5<br />
|- bgcolor="#cccccc"<br />
!width="600px"|Proposed Update (include information on old values if known) <br />
!width="200px"|Reference <br />
!width="200px"|Contact<br />
|-<br />
|Account for absorption in the 300-500 nm range by OC, which may be greater than presently treated. Currently we have OC ss albedo in this range being > 0.95, though it may be lower than 0.85.<br />
|[http://www.atmos-chem-phys.net/8/6665/2008/acp-8-6665-2008.pdf Barnard et al, 2008]<br />
|[mailto:daven.henze@colorado.edu Daven Henze] <br />
|-<br />
|Expand Mie table to include more wavelengths. Most literature values compare at 500 or 550 nm. Current GC lookup table includes 400, then 600. A wider range is also necessary for integrating to get total SW flux; something greater than 1500 perhaps?<br />
|[http://www.atmos-chem-phys.net/4/183/2004/acp-4-183-2004.html Martin et al, 2004]<br />
|[mailto:daven.henze@colorado.edu Daven Henze] <br />
|-<br />
|Consider using the water content of the fine mode aerosol calculated in the aerosol thermodynamic module rather than hygroscopic growth curves to estimate wet particle effective radius.<br />
|N/A<br />
|[mailto:daven.henze@colorado.edu Daven Henze] <br />
|-<br />
|Consider changing the "default" AOD diagnostic wavelength from 400 nm to 550nm (for matching with MODIS & CALIPSO)<br />
|N/A<br />
|[mailto:heald@mit.edu Colette Heald] <br />
|-<br />
|Treat the radius of hydrophylic organic aerosol similar to that of sulfate. This is based on observations that organic aerosol and sulfate are often internally mixed. Should we consider something similar for black carbon? <br />
|[http://cat.inist.fr/?aModele=afficheN&cpsidt=17219054 Rupkheti et al., 2007]<br />
|[mailto:randall.martin@dal.ca Randall Martin] <br />
|}<br />
<br />
<br />
Additional updates to aerosol optics since v8-03-01:<br />
<br />
{| border=1 cellspacing=0 cellpadding=5<br />
|- bgcolor="#cccccc"<br />
!width="600px"|Update <br />
!width="200px"|Version Number<br />
!width="200px"|Contact<br />
|-<br />
|[[GEOS-Chem_v9-01-02#Overhaul of aerosol optical depth diagnostics|Overhaul of AOD diagnostics]]<br />
|v9-01-02<br />
|Patrick Kim (Harvard)<br />
|-<br />
|[[Mineral dust aerosols#Sub-micron dust mass partitioning change|Dust submicron size distribution for optics]]<br />
|v9-01-03<br />
|David Ridley (CSU, now MIT)<br />
|-<br />
|[[Aerosol_optical_properties#Fix_to_jv_spec_aod.dat|Bug fix in jv_spec_aod.dat for dust species]]<br />
|v9-02<br />
|Gabriele Curci (l'Aquila)<br />
|-<br />
|[[Aerosol optical properties#Better representation of OC growth with RH and correction to sulfate optics|Update jv_spec.dat and jv_spec_aod.dat with better representation of OC growth with RH and correction to sulfate optics]]<br />
|v9-02<br />
|Dave Ridley (MIT) and Randall Martin (Dalhousie)<br />
|}<br />
<br />
== Related Topics ==<br />
* [[Aerosol emissions]]<br />
* Aerosol microphysics simulations:<br />
** [[APM aerosol microphysics|with APM]]<br />
** [[TOMAS aerosol microphysics|with TOMAS]]<br />
* [[Aerosol-only simulation]]<br />
* [[Aerosol thermodynamical equilibrium]]<br />
* [[Carbonaceous aerosols]]<br />
* [[Mineral dust aerosols]]<br />
* [[Secondary organic aerosols]]<br />
* [[Sea salt aerosols]]<br />
* [[Sulfate aerosols]]<br />
* [[ISORROPIA II]]<br />
* [[Photolysis mechanism|Photolysis mechanisms in GEOS-Chem]]<br />
<br />
== Issues / Topics for Discussion ==</div>Rvmartinhttps://wiki.seas.harvard.edu/geos-chem/index.php?title=GEOS-Chem_model_development_priorities&diff=15177GEOS-Chem model development priorities2013-12-13T15:35:59Z<p>Rvmartin: /* Ready to go in */</p>
<hr />
<div>On this page we list the current priorities for GEOS-Chem development. This list was compiled by the user Working Groups at the last [http://acmg.seas.harvard.edu/geos/meetings/2013/index.html International GEOS-Chem Meeting (IGC6)] in May 2013 and has been continuously updated since based on code readiness and input from the Working Groups and the Steering Committee.<br />
<br />
We also invite you to view our [https://trello.com/board/geos-chem-support-team/4fe36668fc79a1d3540ba80b GEOS-Chem Support Team project management board on Trello.com], which shows the current GCST workflow.<br />
<br />
== List of priorities as of November 2013 ==<br />
<br />
Items "Awaiting release" will be part of the next version release of GEOS-Chem and are actively being incorporated into the standard model and benchmarked. Other items are in different stages of readiness and will be included in future versions of the model.<br />
<br />
=== Awaiting release ===<br />
<br />
{| border=1 cellspacing=0 cellpadding=5<br />
|- bgcolor="#cccccc"<br />
!width="400px"|Item<br />
!width="300px"|Author(s)<br />
!width="400px"|Status<br />
|-<br />
|[[GEOS-5_issues#Updates_on_GEOS-5_PBL_height_.26_diurnal_variation_of_aerosols|Correction for GEOS-5 PBL heights]]<br />
|Sajeev Philip (Dalhousie) <br />
|Approved 16 Oct 2012 ([[GEOS-Chem v9-02 benchmark history#v9-02a|v9-02a]]); awaiting release<br />
|-<br />
|[[Soil_NOx_emissions#Updated_soil_NOx_emissions_algorithm|New soil NOx emission module]]<br />
|Rynda Hudman (UC Berkeley)<br>Neil Moore (Dalhousie)<br>Bram Maasakkers (Eindhoven) <br />
|Approved 29 Oct 2012 ([[GEOS-Chem v9-02 benchmark history#v9-02b|v9-02b]]); awaiting release<br />
|-<br />
|[[EPA/NEI05_North_American_emissions|EPA/NEI2005 Hg emissions for US]]<br />
|Lyatt Jaegl&eacute; (U. Washington)<br />
|Approved 29 Nov 2012 ([[GEOS-Chem v9-02 benchmark history#v9-02c|v9-02c]]); awaiting release<br />
|-<br />
|[[Mercury#Streets future Hg emissions|Streets future Hg emissions]]<br />
|Bess Corbitt (Harvard)<br />
|Approved 29 Nov 2012 ([[GEOS-Chem v9-02 benchmark history#v9-02c|v9-02c]]); awaiting release<br />
|-<br />
|[[Mercury#Nested-grid Hg simulation over North America|Nested-grid Hg simulation]]<br />
|Lyatt Jaegl&eacute; (U. Washington)<br />
|Approved 29 Nov 2012 ([[GEOS-Chem v9-02 benchmark history#v9-02c|v9-02c]]); awaiting release<br />
|-<br />
|[[Mercury#Updated Hg.280.29 oxidation kinetics|Updated Hg(0) oxidation kinetics]]<br />
|Bess Corbitt (Harvard)<br>Justin Parrella (Harvard)<br />
|Approved 29 Nov 2012 ([[GEOS-Chem v9-02 benchmark history#v9-02c|v9-02c]]); awaiting release<br />
|-<br />
|[[Mercury#Capability to use GEOS-Chem Br.2FBrO fields in Hg simulation|Capability to use GEOS-Chem Br/BrO fields in Hg simulation]]<br />
|Bess Corbitt (Harvard)<br>Justin Parrella (Harvard)<br />
|Approved 29 Nov 2012 ([[GEOS-Chem v9-02 benchmark history#v9-02c|v9-02c]]); awaiting release<br />
|-<br />
|[[POPs simulation|POPs simulation: Polycyclic aromatic hydrocarbons]]<br />
|Carey Friedman (MIT)<br />
|Approved 29 Nov 2012 ([[GEOS-Chem v9-02 benchmark history#v9-02c|v9-02c]]); awaiting release<br />
|-<br />
|[[Updating_standard_chemistry_with_JPL_10-6|Inorganic chemistry updates]]<br />
|Mat Evans (York)<br />
|Approved 07 Feb 2013 ([[GEOS-Chem v9-02 benchmark history#v9-02f|v9-02f]]); awaiting release<br />
|-<br />
|[[Methyl peroxy nitrate chemistry|Methyl peroxy nitrate (MPN) chemistry]]<br />
|Ellie Browne (UC Berkeley) <br />
|Approved 07 Feb 2013 ([[GEOS-Chem v9-02 benchmark history#v9-02f|v9-02f]]); awaiting release<br />
|-<br />
|[[New_isoprene_scheme#Update_One_-_RO2.2BHO2_Reaction_Rate|Fix RO2+HO2 rate constant]]<br />
|Fabien Paulot (Harvard)<br />
|Approved 22 Mar 2013 ([[GEOS-Chem v9-02 benchmark history#v9-02g|v9-02g]]); awaiting release<br />
|-<br />
|[[ChemTelecon20111202|Improvements to isoprene chemistry, standardization of Paulot Scheme]]<br />
|Fabien Paulot (Harvard)<br>Eloise Marais (Harvard)<br>Jingqiu Mao (NOAA/GFDL)<br>Mat Evans (York)<br />
|Approved 22 Mar 2013 ([[GEOS-Chem v9-02 benchmark history#v9-02g|v9-02g]]); awaiting release<br />
|-<br />
|[[NOx-Ox-HC-aerosol#Removal of NOx and Ox partitioning|Removal of NOx-Ox partitioning]]<br />
|[[GEOS-Chem Support Team]]<br />
|Approved 15 May 2013 ([[GEOS-Chem v9-02 benchmark history#v9-02h|v9-02h]]); awaiting release<br />
|-<br />
|[[ChemTelecon20111202|Inhibition of N2O5 hydrolysis by aerosol nitrate]]<br />
|Lin Zhang (Peking University)<br />
|Approved 17 May 2013 ([[GEOS-Chem v9-02 benchmark history#v9-02i|v9-02i]]); awaiting release<br />
|-<br />
|[[NOx-Ox-HC-aerosol#Improved HO2 uptake|Improved HO2 uptake by aerosol]]<br />
|Jingqiu Mao (NOAA/GFDL)<br />
|Approved 28 May 2013 ([[GEOS-Chem v9-02 benchmark history#v9-02j|v9-02j]]); awaiting release<br />
|-<br />
|[[Grid-Independent_GEOS-Chem:_Chemistry_Component|Grid-independent GEOS-Chem: Chemistry]]<br />
|[[GEOS-Chem Support Team]]<br>GMAO<br />
|Approved 07 Jun 2013 ([[GEOS-Chem v9-02 benchmark history#v9-02k|v9-02k]]); awaiting release<br />
|-<br />
|[[TOMAS_aerosol_microphysics#Update_April_2013|Inline the TOMAS aerosol microphysics code into standard code]]<br />
|Sal Farina (CSU)<br />
|Approved 07 Jun 2013 ([[GEOS-Chem v9-02 benchmark history#v9-02k|v9-02k]]); awaiting release<br />
|-<br />
|[[Anthropogenic_emissions#CAC|Updated Canadian NH3 inventory]]<br />
|Wai-Ho Lo (Dalhousie) <br />
|Approved 26 Jun 2013 ([[GEOS-Chem v9-02 benchmark history#v9-02l|v9-02l]]); awaiting release<br />
|-<br />
|[[EPA/NEI05 North American emissions#Updated NH3 seasonal scaling factors in v9-02|Updated NH3 seasonal scaling factors over the US]]<br />
|Lin Zhang (Peking University)<br />
|Approved 26 Jun 2013 ([[GEOS-Chem v9-02 benchmark history#v9-02l|v9-02l]]); awaiting release<br />
|-<br />
|[[Historical_and_Future_Emissions#RCP_future_emission_scenarios |RCP emission scenarios]]<br />
|Chris Holmes (UC Irvine)<br />
|Approved 30 Jul 2013 ([[GEOS-Chem v9-02 benchmark history#v9-02m|v9-02m]]); awaiting release<br />
|-<br />
|[[CH4 simulation#Update CH4 emissions to EDGAR v4.2|EDGAR v4.2 emissions for CH4 simulation]]<br />
|Kevin Wecht (Harvard)<br />
||Approved 30 Jul 2013 ([[GEOS-Chem v9-02 benchmark history#v9-02m|v9-02m]]); awaiting release<br />
|-<br />
|[[Scale factors for anthropogenic emissions|Update anthropogenic scale factors through 2010]]<br />
|Aaron van Donkelaar (Dalhousie)<br />
||Approved 30 Jul 2013 ([[GEOS-Chem v9-02 benchmark history#v9-02m|v9-02m]]); awaiting release<br />
|-<br />
|[[Aircraft emissions#MIT aviation emissions inventory|AEIC aircraft emissions inventory]]<br />
|Sebastian D. Eastham(MIT)<br>Steven Barrett (MIT)<br />
|Approved 12 Aug 2013 ([[GEOS-Chem v9-02 benchmark history#v9-02n|v9-02n]]); awaiting release<br />
|-<br />
|[[Secondary organic aerosols#SOA simulation with semi-volatile POA|Expanded SOA]]<br />
|Havala Pye (EPA/ORD)<br />
|Approved 03 Sep 2013 ([[GEOS-Chem v9-02 benchmark history#v9-02o|v9-02o]]); awaiting release<br />
|-<br />
|[[Sulfate aerosols#Cloud water pH for sulfate formation|Cloud water pH for sulfate formation]]<br />
|Becky Alexander (U. Washington)<br />
|Approved 13 Sep 2013 ([[GEOS-Chem v9-02 benchmark history#v9-02p|v9-02p]]); awaiting release<br />
|-<br />
|[[Aerosol optical properties#Better representation of OC growth with RH and correction to sulfate optics|Update jv_spec.dat with better representation of OC growth with RH and correction to sulfate optics]]<br />
|David Ridley (MIT)<br>Randall Martin (Dalhousie)<br />
|Approved 17 Sep 2013 ([[GEOS-Chem v9-02 benchmark history#v9-02q|v9-02q]]); awaiting release<br />
|-<br />
|Global simulations with [[GEOS-FP|GEOS-FP met data product]] from GMAO<br />
|[[GEOS-Chem Support Team]]<br />
|To be included in [[GEOS-Chem v9-02|v9-02]]<br />
<br />
*'''''NOTE:''''' The GEOS-5 "FP" product (aka GEOS-5.11.0) is what we will use for the 0.25&deg; x 0.3125&deg; nested simulations. To run the nested simulations (the 2 items listed below), we also must be able to run the global simulations with this met data product in order to save out transport boundary conditons.<br />
*Much of this development work has already been done in advance of the SEAC4RS aircraft mission.<br />
|-<br />
|Nested-grid model at 0.25&deg; x 0.3125&deg; resolution<br />
|Yuxuan Wang (Tsinghua)<br />
|To be included in [[GEOS-Chem v9-02|v9-02]]<br />
|-<br />
|High-resolution emissions for above nested-grid model<br />
|Yuxuan Wang (Tsinghua)<br />
|To be included in [[GEOS-Chem v9-02|v9-02]]<br />
|-<br />
|[[Debugging with the GEOS-Chem unit tester|Unit testing]]<br />
|[[GEOS-Chem Support Team]]<br />
|Available as an external package in [[GEOS-Chem v9-02 benchmark history#v9-02o|GEOS-Chem v9-02o]] and later versions <br />
|-<br />
|}<br />
<br />
--[[User:Melissa Payer|Melissa Sulprizio]] 15:09, 31 October 2013 (EDT)<br />
<br />
=== Ready to go in ===<br />
<br />
{| border=1 cellspacing=0 cellpadding=5<br />
|- bgcolor="#cccccc"<br />
!width="400px"|Item<br />
!width="300px"|Author(s)<br />
!width="400px"|Status<br />
|- bgcolor="#ccffff"<br />
!width="400px"|Items already delivered to GCST<br />
!width="300px"| <br />
!width="400px"| <br />
|-<br />
|[[Mineral_dust_aerosols#Surface_chemistry_on_dust|Acid uptake on dust aerosols]]<br />
|T. Duncan Fairlie (NASA/LARC)<br />
|<br />
*Delivered to [[GEOS-Chem Support Team|GCST]], on hold until post v9-02<br />
|-<br />
|[[EPA/NEI08 North American emissions|NEI 2008 emissions with hourly resolution]]<br />
|Katie Travis (Harvard)<br />
|<br />
*Delivered to [[GEOS-Chem Support Team|GCST]] (Summer 2013)<br />
*This has already been added to the research version of GEOS-Chem used to produce the SEAC4RS hindcasts<br />
|-<br />
|[[MEGAN_biogenic_emissions#Update_to_MEGAN2.1_.28Guenther_et_al..2C_2012.29|Update to MEGAN2.1]]<br />
|Dylan Millet (U. Minnesota)<br />
|<br />
*Delivered to [[GEOS-Chem Support Team|GCST]] (Summer 2013)<br />
*This has already been added to the research version of GEOS-Chem used to produce the SEAC4RS hindcasts<br />
|-<br />
|CO2 direct effect on isoprene emissions<br />
|Amos Tai (City University of Hong Kong)<br />
|<br />
*Delivered to [[GEOS-Chem Support Team|GCST]] (Nov 2013)<br />
|-<br />
|[[PAN|PAN / Organics]]<br />
|Emily Fischer (CSU)<br />
|<br />
*Delivered to [[GEOS-Chem Support Team|GCST]] (May 2013)<br />
|-<br />
|[[Coupling GEOS-Chem with RRTMG|Online GCRT]]<br />
|David Ridley (MIT)<br>Colette Heald (MIT)<br />
|<br />
*Delivered to [[GEOS-Chem Support Team|GCST]] (Oct 2013)<br />
*Slated for inclusion: TBD after v9-02 release<br />
|-<br />
|[[UCX chemistry mechanism|Stratospheric chemistry (aka UCX mechanism)]]<br />
|Sebastian Eastham (MIT)<br />
|<br />
*Delivered to [[GEOS-Chem Support Team|GCST]] (Oct 2013)<br />
*Slated for inclusion: TBD after v9-02 release<br />
|-<br />
|[[UCX chemistry mechanism|Stratospheric aerosols]]<br />
|Sebastian Eastham (MIT)<br />
|<br />
*Delivered to [[GEOS-Chem Support Team|GCST]] (Oct 2013)<br />
*Included in the [[UCX chemistry mechanism|UCX mechanism code updates]]<br />
*Slated for inclusion: TBD after v9-02 release<br />
|-<br />
|[[UCX chemistry mechanism|Fast-JX]]<br />
|Sebastian Eastham (MIT)<br>Jingqiu Mao (NOAA/GFDL)<br />
|<br />
*Delivered to [[GEOS-Chem Support Team|GCST]] (Oct 2013)<br />
*Included in the [[UCX chemistry mechanism|UCX mechanism code updates]]<br />
*Slated for inclusion: TBD after v9-02 release<br />
|-<br />
|[[Grid-independent GEOS-Chem]]: Packaging ESMF/MAPL<br />
|[[GEOS-Chem Support Team]]<br>GMAO<br />
|<br />
*Need to synchronize the latest GIGC development back into the existing G-C repository<br />
|-<br />
|[[Wet_deposition#Impaction_scavenging_for_hydrophobic_BC_and_homogeneous_IN_removal|Impaction scavenging for hydrophobic BC]]<br />
|Qiaoqiao Wang (Harvard)<br />
|<br />
*Delivered to [[GEOS-Chem Support Team|GCST]] (Nov 2013)<br />
|-<br />
|[[Wet_deposition#Impaction_scavenging_for_hydrophobic_BC_and_homogeneous_IN_removal|Homogeneous IN removal]]<br />
|Qiaoqiao Wang (Harvard)<br />
|<br />
*Delivered to [[GEOS-Chem Support Team|GCST]] (Nov 2013)<br />
|- bgcolor="#ccffff"<br />
!width="400px"|Still awaiting delivery to GCST<br />
!width="300px"| <br />
!width="400px"| <br />
|-<br />
|[[EDGAR anthropogenic emissions|Update to EDGAR 4.2 anthropogenic emissions]]<br />
|Meng Li and Qiang Zhang (Tsinghua)<br>Sajeev Philip (Dalhousie)<br />
|Implemented in a research version of GEOS-Chem.<br />
|-<br />
|Improve temporal resolution of anthropogenic CO2 sources<br />
|Ray Nassar (Environment Canada)<br />
|<br />
|-<br />
|Replace CASA CO2 biosphere climatology with year-specific fluxes<br />
|Ray Nassar (Environment Canada)<br>Dylan Jones (U. Toronto)<br />
|'''''Ray Nassar wrote:'''''<br />
:SiB Fluxes are available to replace the old CASA fluxes, courtesy of Janina Messerschmidt et al. New CASA fluxes would also be good, such that the user can select options in the input.geos file.<br />
|-<br />
|UNEP 2010 anthropogenic Hg emissions<br />
|Shaojie Song (MIT)<br />
|<br />
|-<br />
|Historical anthropogenic atmospheric emissions of Hg<br />
|Bess Corbitt (Harvard)<br />
|<br />
|-<br />
|Subsurface ocean Hg concentration update<br />
|Anne Soerensen (Harvard)<br />
|<br />
|-<br />
|NEI 2008 Hg emission inventory<br />
|Yanxu Zhang (Harvard)<br />
|<br />
|-<br />
|Arctic Hg cycling<br />
|Jenny Fisher (Wollongong)<br />
|<br />
|-<br />
|Criegee intermediate<br />
|Dylan Millet (U. Minnesota)<br />
|<br />
*This has already been added to the research version of GEOS-Chem used to produce the SEAC4RS hindcasts<br />
|-<br />
|VBS SOA option<br />
|Rokjin Park (Seoul Nat'l Univ.)<br />
|<br />
|-<br />
|Tagged sulfate and nitrate simulation<br />
|Becky Alexander (U. Washington)<br />
|<br />
|-<br />
|RRTMG radiative transfer code<br />
|Fangqun Yu (SUNY Albany)<br />
|<br />
|-<br />
|[http://acmg.seas.harvard.edu/publications/murray.2013.jgr.pdf Interannual lightning]<br />
|Lee Murray (Harvard)<br />
|Available for GEOS-4, but still needs to be implemented in GEOS-5<br />
|}<br />
<br />
--[[User:Bmy|Bob Y.]] 11:44, 12 December 2013 (EST)<br />
<br />
=== Almost there (< 6 months) ===<br />
<br />
{| border=1 cellspacing=0 cellpadding=5<br />
|- bgcolor="#cccccc"<br />
!width="400px"|Item<br />
!width="300px"|Author(s)<br />
!width="400px"|Status<br />
|-<br />
|Coupling to 3D ocean: OFFTRACK<br />
|Yanxu Zhang (Harvard)<br />
|<br />
|-<br />
|Dry deposition updates for Hg simulation<br />
|Bess Corbitt (Harvard)<br />
|<br />
|-<br />
|New Hg soil emissions standard from offline GTMM<br />
|Bess Corbitt (Harvard)<br />
|<br />
|-<br />
|Pre- and online processing of emissions<br />
|Qiang Zhang (Tsinghua)<br>Christoph Keller (Harvard)<br />
|<br />
|-<br />
|MASAGE NH3 emissions<br />
|Fabien Paulot (Harvard)<br />
|<br />
|-<br />
|Benchmark procedure for nested model<br />
|[[Nested Model Working Group]]<br />
|<br />
|-<br />
|TOMAS parallelization<br />
|Sal Farina (CSU)<br>Jeff Pierce (CSU)<br />
|<br />
|-<br />
|Reduced TOMAS (12/15 bins)<br />
|Sal Farina (CSU)<br>Jeff Pierce (CSU)<br />
|<br />
|-<br />
|APM v2, synch with v9-02<br />
|Fangqun Yu (SUNY Albany)<br />
|<br />
|-<br />
|Retain native resolution 2D surface winds<br />
|David Ridley (MIT)<br>[[GEOS-Chem Support Team]]<br />
|<br />
|-<br />
|FLEXCHEM<br />
|Mat Evans (York)<br>Mike Long (Harvard)<br />
|<br />
|-<br />
|Develop new coding standards<br />
|[[GEOS-Chem Support Team]]<br />
|<br />
|-<br />
|[[Grid-independent GEOS-Chem]]: Dry deposition<br />
|[[GEOS-Chem Support Team]]<br>GMAO<br />
|<br />
|-<br />
|[[Grid-Independent GEOS-Chem: Emissions Component|Grid-independent GEOS-Chem: Emissions]]<br />
|Christoph Keller (Harvard)<br>[[GEOS-Chem Support Team]]<br>GMAO<br />
|<br />
*Nearing maturity (as of Nov 2013)<br />
*Currently being implemented into the NASA GEOS5-GCM<br />
|-<br />
|[[Grid-independent GEOS-Chem]]: NetCDF I/O<br />
|[[GEOS-Chem Support Team]]<br />
|<br />
|-<br />
|CMS CO2 ocean fluxes<br />
|Kevin Bowman (JPL)<br />
|<br />
|-<br />
|Dynamic subsurface ocean<br />
|Helen Amos (Harvard)<br />
|<br />
|-<br />
|[[POPs simulation#PAH simulation|Updates to PAH code]]<br />
|Carey Friedman (MIT)<br>Helen Amos (Harvard)<br />
|<br />
|-<br />
|Fix for CH4 concentrations after 2008<br />
|Lee Murray (Harvard)<br />
|<br />
|-<br />
|Two-way nested grid simulation<br />
|Jintai Lin (Peking)<br />
|<br />
|-<br />
|Sub-domain within the nested-grid domain<br />
|Yuxuan Wang (Tsinghua)<br>Jintai Lin (Peking)<br />
|<br />
|-<br />
|Offline satellite simulator tool<br />
|[[Nested Model Working Group]]<br />
|<br />
|-<br />
|Metal catalyzed oxidation of SO2<br />
|Becky Alexander (U. Washington)<br />
|<br />
|-<br />
|Sulfate production on aerosol haze<br />
|Yuxuan Wang (Tsinghua)<br>Rokjin Park (Seoul Nat'l Univ.)<br />
|<br />
|-<br />
|Diurnal variation of NH3 emissions<br />
|Daven Henze (UC Boulder)<br />
|<br />
|-<br />
|Time-varying Arctic parameterizations<br />
|Jenny Fisher (Wollongong)<br />
|<br />
|-<br />
|Future US emissions inventories of Hg<br />
|Amanda Giang (MIT)<br />
|<br />
|-<br />
|Coastal inputs of Hg: Rivers and anthropogenic point sources<br />
|Helen Amos (Harvard)<br />
|<br />
|-<br />
|Complete revamp of [[Mercury#GTMM|GTMM]]<br />
|Bess Corbitt (Harvard)<br />
|<br />
|-<br />
|Dust PDF for global simulations<br />
|David Ridley (MIT)<br />
|<br />
|-<br />
|Benchmark for aerosol deposition<br />
|[[Aerosols overview: projects and developments|Aerosols Working Group]]<br />
|<br />
|}<br />
<br />
--[[User:Melissa Payer|Melissa Sulprizio]] 15:33, 21 October 2013 (EDT)<br />
<br />
=== Over the horizon (6-12 months) ===<br />
<br />
{| border=1 cellspacing=0 cellpadding=5<br />
|- bgcolor="#cccccc"<br />
!width="400px"|Item<br />
!width="300px"|Author(s)<br />
!width="400px"|Status<br />
|-<br />
|Updates to redox chemistry for Hg simulation<br />
|Bess Corbitt (Harvard)<br />
|<br />
|-<br />
|High-resolution regional emissions<br />
|[[Nested Model Working Group]]<br />
|<br />
|-<br />
|Flexible diagnostic package<br />
|[[GEOS-Chem Support Team]]<br />
|<br />
|-<br />
|[[Grid-independent GEOS-Chem]]: Convection<br />
|TBD<br />
|[[GEOS-Chem Support Team|GCST]] needs help from community<br />
|-<br />
|[[Grid-independent GEOS-Chem]]: Wet scavenging<br />
|TBD<br />
|[[GEOS-Chem Support Team|GCST]] needs help from community<br />
|-<br />
|[[Grid-independent GEOS-Chem]]: PBL mixing<br />
|Sajeev Philip (Dalhousie)<br>Christoph Keller (Harvard)<br>GMAO<br />
|<br />
|-<br />
|[[Grid-independent GEOS-Chem]]: Transport<br />
|TBD<br />
|[[GEOS-Chem Support Team|GCST]] needs help from community<br />
|-<br />
|3D VOC source for tagged CO simulation and enhanced tagging of secondary CO<br />
|Jenny Fisher (Wollongong)<br />
|<br />
|-<br />
|Satellite diagnostic for XCO2<br />
|Andrew Schuh (CSU)<br />
|<br />
|-<br />
|Dynamic precision<br />
|[[GEOS-Chem Support Team]]<br />
|<br />
|-<br />
|Profiling GEOS-Chem<br />
|TBD<br />
|<br />
|-<br />
|Methylmercury in the surface ocean<br />
|Anne Soerensen (Harvard)<br />
|<br />
|-<br />
|Primary marine emissions of OA<br />
|Brett Gantt (NCSU)<br />
|<br />
|-<br />
|Recommendations for optimal timesteps<br />
|Sajeev Philip (Dalhousie)<br />
|<br />
|-<br />
|DMS oxidation scheme updating (DMSO, oxidation by BrO)<br />
|Tom Breider (Harvard)<br>Becky Alexander (U. Washington)<br />
|<br />
|-<br />
|More options for terrestrial CO2 fluxes<br />
|Kevin Bowman (JPL)<br />
|<br />
|-<br />
|[[Biomass_burning_emissions#FINNv1|FINN biomass burning emissions]]<br />
|Jenny Fisher (Wollongong)<br>Min Huang (JPL)<br />
|<br />
|-<br />
|Merge organics from specialized simulations into the mainline code<br />
|Dylan Millet (U. Minnesota)<br />
|<br />
|}<br />
<br />
--[[User:Melissa Payer|Melissa Sulprizio]] 15:33, 21 October 2013 (EDT)<br />
<br />
=== Longer term (12-24 months)===<br />
<br />
{| border=1 cellspacing=0 cellpadding=5<br />
|- bgcolor="#cccccc"<br />
!width="400px"|Item<br />
!width="300px"|Author(s)<br />
!width="400px"|Status<br />
|-<br />
|Coupling to 3D ocean: MIT ocean GCM<br />
|Yanxu Zhang (Harvard)<br />
|<br />
|-<br />
|[[Python code for GEOS-Chem|Python interface]]<br />
|Beno&icirc;t Bovy (U. Li&egrave;ge-Belgium) + others<br />
|<br />
|-<br />
|Uniformity of units <br />
|[[GEOS-Chem Support Team]]<br />
|<br />
|-<br />
|Historical inventory of Hg in products and processes<br />
|Hannah Horowitz (Harvard)<br />
|<br />
|-<br />
|Better link/coupling to ocean processes<br />
|[[Chemistry-Climate Working Group]]<br />
|<br />
|-<br />
|Better coupling to biogeochemical cycles<br />
|[[Chemistry-Climate Working Group]]<br />
|<br />
|-<br />
|Chemistry feedbacks to vegetation ecosystem<br />
|Amos Tai (MIT)<br />
|<br />
|-<br />
|Iodine chemistry<br />
|Tom&aacute;s Sherwen (York)<br />
|<br />
|-<br />
|Harmonization of aerosol optics (including water uptake)<br />
|David Ridley(MIT)<br>Colette Heald (MIT)<br>Peter Adams (Carnegie Mellon)<br>Fangqun Yu (SUNY Albany)<br>Gabriele Curci (U. L'Aquila)<br>Randall Martin (Dalhousie)<br />
|<br />
|-<br />
|[[Grid-independent GEOS-Chem]]: Ocean interface<br />
|Yanxu Zhang (Harvard)<br />
|<br />
|-<br />
|Updated LAI<br />
|Kevin Bowman (JPL)<br>Folkert Boersma (KNMI)<br />
|<br />
|-<br />
|Merge dicarbonyl simulation into standard simulation<br />
|Tzung-May Fu (Peking)<br />
|<br />
|-<br />
|Global 0.5x0.667 capability for CO2/CH4<br />
|Liang Feng (Edinburgh)<br>Dylan Jones (U. Toronto)<br />
|<br />
|-<br />
|Dynamic multiple boxes subsurface Arctic Ocean<br />
|Helen Amos (Harvard)<br>Anne Soerensen (Harvard)<br />
|<br />
|-<br />
|[[POPs simulation#PCB simulation|PCB simulation: atmosphere and ocean]]<br />
|Carey Friedman (MIT)<br>Helen Amos (Harvard)<br />
|<br />
|-<br />
|Nighttime isoprene chemistry<br />
|Rebecca Schwantes (Caltech)<br />
|<br />
|-<br />
|ClNO2<br />
|Mat Evans (York)<br />
|<br />
|-<br />
|Dissolved Fe/Cu<br />
|Matthew Johnson (NCSU)<br>Jingqiu Mao (NOAA/GFDL)<br />
|<br />
|-<br />
|UV absorption of organics/brown carbon<br />
|Rokjin Park (Seoul Nat'l Univ.)<br />
|<br />
|-<br />
|CO-CO2-CH4 simulation<br />
|Dylan Jones (U. Toronto)<br>Annemarie Fraser (Edinburgh)<br />
|<br />
|-<br />
|Updated HCN simulation<br />
|Dylan Jones (U. Toronto)<br />
|<br />
|-<br />
|[[Adding_Passive_Tracers|Passive tracer module]]<br />
|Jenny Fisher (Wollongong)<br />
|<br />
'''''[mailto:jennyf@uow.edu.au Jenny Fisher] wrote:'''''<br />
:Passive tracers will not (at this stage) be added as a standard feature of GEOS-Chem, but can be implemented by individual users relatively straightforwardly. We have added this to the SEAC4RS research version of GEOS-Chem.<br />
|-<br />
|Plume in-grid lightning NOx emissions<br />
|Alicia Gressent (U. Toulouse)<br />
|<br />
|}<br />
<br />
--[[User:Melissa Payer|Melissa Sulprizio]] 15:33, 21 October 2013 (EDT)</div>Rvmartinhttps://wiki.seas.harvard.edu/geos-chem/index.php?title=Aerosols_Working_Group&diff=15132Aerosols Working Group2013-12-05T20:32:38Z<p>Rvmartin: /* Current GEOS-Chem Aerosol Projects, alphabetized by institution (please add yours!) */</p>
<hr />
<div>All users interested in the GEOS-Chem aerosol simulations are encouraged to subscribe to the aerosols email list (click on the link in the [[#Contact information|contact information section]] below).<br />
<br />
Information on existing projects and future developments in aerosols will be posted here. We encourage user groups to keep their information up-to-date.<br />
<br />
== Contact information ==<br />
<br />
{| border=1 cellspacing=0 cellpadding=5<br />
|-<br />
|'''Aerosols Working Group Co-Chairs'''<br />
|[http://web.mit.edu/heald/www/ Colette Heald], [http://pierce.atmos.colostate.edu/ Jeff Pierce]<br />
|-<br />
|'''Aerosols Working Group email list'''<br />
|<tt>geos-chem-aerosols@seas.harvard.edu</tt><br />
|-<br />
|'''To subscribe to email list'''<br />
|Send email to [mailto:geos-chem-aerosols-join@seas.harvard.edu <tt>geos-chem-aerosols-join@seas.harvard.edu</tt>]<br />
|-<br />
|'''To unsubscribe from email list'''<br />
|Send email to [mailto:geos-chem-aerosols-leave@seas.harvard.edu <tt>geos-chem-aerosols-leave@seas.harvard.edu</tt>]<br />
|}<br />
<br />
== Current GEOS-Chem Aerosol Projects, alphabetized by institution (please add yours!) ==<br />
{| border=1 cellspacing=0 cellpadding=5<br />
|- bgcolor="#cccccc"<br />
!User Group <br />
!Description <br />
!Contact Person<br />
!Date Added<br />
|-<br />
|Beijing/SUNY<br />
|Representing GEOS-Chem in the AEROCOM intercomparisons<br />
|[mailto:mayfu@pku.edu.cn May Fu] <br>[mailto:yfq@asrc.cestm.albany.edu Fangqun Yu]<br />
|28 Jul 2010<br />
|-<br />
|CU Boulder<br />
|Inverse modeling of inorganic PM2.5 precursors. Direct aerosol radiative forcing. <br />
|[mailto:daven.henze@colorado.edu Daven Henze]<br />
|19 Apr 2009<br />
|-<br />
|CMU<br />
|Development of aerosol microphysics. Represented aerosols include size-resolved aerosol numbers and multi-component mass species, including sulfate, sea-salt, OM, EC, and dust. Evaluation against field campaign, e.g. ACE-Asia.<br />
|[mailto:petera@andrew.cmu.edu Peter Adams]<br>[mailto:dwesterv@andrew.cmu.edu Dan Westervelt]<br />
|23 Apr 2009<br />
|-<br />
|Dalhousie<br />
|Optimal estimation satellite retrieval of aerosols <br />
|[mailto:Aaron.van.Donkelaar@dal.ca Aaron van Donkelaar]<br />
|26 Sep 2012<br />
|-<br />
|Dalhousie<br />
|Global aerosol speciation<br />
|[mailto:philip.sajeev@gmail.com Sajeev Philip]<br />
|26 Sep 2012<br />
|-<br />
|Dalhousie/Tsinghua<br />
|Historical trends in Asian PM2.5 and emissions<br />
|[mailto:ggn220@gmail.com Guannan Geng]<br />
|26 Sep 2012<br />
|-<br />
|Dalhousie<br />
|Simulation of the absorbing aerosol index<br />
|[mailto:mhammer17@hotmail.com Melanie Hammer]<br />
|26 Sep 2012<br />
|-<br />
|Dalhousie<br />
|Diurnal variation in North American aerosol<br />
|[mailto:Andrew.Morrow@Dal.Ca Andrew Morrow]<br />
|26 Sep 2012<br />
|-<br />
|Dalhousie<br />
|Sensitivity of global PM2.5 to sources<br />
|[mailto:colin.lee@dal.ca Colin Lee]<br />
|26 Sep 2012<br />
|-<br />
|Dalhousie<br />
|Aerosol microphysics simulation of AOD and PM2.5<br />
|[mailto:AR731886@DAL.CA Arjya Sarkar]<br />
|26 Sep 2012<br />
|-<br />
|Dalhousie<br />
|Aerosol scavenging, nuclear accident simulation (137-CS, 133-XE)<br />
|[mailto:croft@mathstat.dal.ca Betty Croft]<br />
|03 Jan 2013<br />
|-<br />
|Dalhousie<br />
|Satellite-based estimates of Asian PM2.5<br />
|[mailto:jn231250@dal.ca Junwei Xu]<br />
|26 Sep 2012<br />
|-<br />
|Dalhousie<br />
|Aerosol microphysics: effects of nucleation, emissions and SOA on aerosol size distribution<br />
|[mailto:jeffrey.robert.pierce@gmail.com Jeff Pierce]<br />
|03 Jan 2011<br />
|-<br />
|Dalhousie<br />
|Historical trends in global satellite-derived estimates of PM2.5 <br />
|[mailto:briboys@gmail.com Brian Boys]<br />
|27 Apr 2011<br />
|-<br />
|Dalhousie<br />
|Historical (1980-) trends in aerosol speciation in North America <br />
|[mailto:nt662202@Dal.Ca Nathaniel Egan-Pimblett]<br />
|27 Apr 2011<br />
|-<br />
|Dalhousie<br />
|Assimilation of CALIOP vertical profiles<br />
|[mailto:colin.lee@dal.ca Colin Lee]<br />
|5 Dec 2013<br />
|-<br />
|Dalhousie<br />
|Simulation of heavy metals in PM<br />
|[mailto:fr526565@dal.ca Farhan Khan]<br />
|5 Dec 2013<br />
|-<br />
|Harvard<br />
|Aerosol scavenging in continental outflow; intercontinental transport and dissipation of pollution plumes<br />
|[mailto:kim68@fas.harvard.edu Sungshik Kim]<br />
|13 Jul 2010<br />
|-<br />
|MIT<br />
|PM2.5 concentrations and health impacts, including future emissions trends<br />
|[mailto:selin@mit.edu Noelle Selin]<br />
|29 Jun 2010<br />
|-<br />
|MIT<br />
|Examining long term trends of dust in the tropics<br />
|[mailto:daridley@mit.edu Dave Ridley]<br />
|10 April 2012<br />
|-<br />
|MIT<br />
|Investigating sub-grid variability and scale invariance of dust emissions<br />
|[mailto:daridley@mit.edu Dave Ridley]<br />
|25 September 2012<br />
|-<br />
|MIT<br />
|Integrating RRTMG in GEOS-Chem (LW and SW, gases and aerosols), evaluating aerosol forcing<br />
|[mailto:daridley@mit.edu Dave Ridley] [mailto:heald@mit.edu Colette Heald]<br />
|25 September 2012<br />
|-<br />
|MIT<br />
|Investigating impact of black carbon aging and mixing on radiative forcing<br />
|[mailto:xuanw12@mit.edu Xuan Wang]<br />
|25 September 2012<br />
|-<br />
|MIT<br />
|Investigating NHx system (GEOS-Chem compared to surface, CalNex and IASI observations) <br />
|[mailto:schiferl@mit.edu Luke Schiferl]<br />
|20 May 2010<br />
|-<br />
|MIT<br />
|Developing a scheme to describe the aging of organic aerosol<br />
|[mailto:qichen@mit.edu Qi Chen]<br />
|8 Apr 2013<br />
|-<br />
|MIT<br />
|Impact of 2000-2050 changes in climate, vegetation and land use on aerosols<br />
|[mailto:pkamostai@gmail.com Amos Tai]<br />
|9 May 2013<br />
|-<br />
|MIT/CU <br />
|Investigating transpacific transport of aerosol and gas-phase pollution.<br />
|[mailto:klapina@atmos.colostate.edu Kateryna Lapina]<br />
|13 Apr 2009<br />
|-<br />
|MIT/CSU <br />
|Investigating aerosols in the Southeastern US<br />
|[mailto:bonne@atmos.colostate.edu Bonne Ford]<br />
|01 Feb 2012<br />
|-<br />
|NASA LaRC<br />
|transpacific transport of dust and sulfate; composition of Asian upper tropopause aerosol layer (ATAL).<br />
|[mailto:t.d.fairlie@nasa.gov Duncan Fairlie]<br />
|10 Apr 2013<br />
|-<br />
|NIA / LaRC<br />
|Radiative effects of aerosols vs. clouds<br />
|[mailto:hyl@nianet.org Hongyu Liu]<br />
|05 Feb 2010<br />
|-<br />
|Peking University<br />
|Carbonaceous aerosols in China<br />
|[mailto:tmfu@pku.edu.cn May Fu]<br />
|01 Jul 2010<br />
|-<br />
|Peking University<br />
|Biomass burning aerosols in South and East Asia<br />
|[mailto:tmfu@pku.edu.cn May Fu]<br />
|01 Jul 2010<br />
|-<br />
|Peking University<br />
|Estimate of interdecadal variation in direct radiative effect of aerosols over global lands <br />
|[mailto:linjt@pku.edu.cn Jintai Lin]<br />
|01 Nov 2010<br />
|-<br />
|Peking University<br />
|Anthropogenic dust and impacts on global environment <br />
|[mailto:linjt@pku.edu.cn Jintai Lin]<br />
|01 May 2011<br />
|-<br />
|University of Athens-National Observatory of Athens (Greece)<br />
|Study of aerosols over Europe and Greece by coupling Geos-chem (v8-03-01) with Camx<br />
|[mailto:aprot@phys.uoa.gr Anna Protonotariou]<br />
|01 Jul 2010<br />
|-<br />
|UNL<br />
|aerosol retrieval from satellite, aerosol direct and indirect effect.<br />
|[mailto:jwang7@unl.edu Jun Wang]<br />
|22 Apr 2009<br />
|-<br />
|University of L'Aquila<br />
|Participation in organic aerosol AEROCOM intercomparison (v8.02.02 of GEOS-Chem)<br />
|[mailto:gabriele.curci@aquila.infn.it Gabriele Curci]<br />
|24 Jun 2009<br />
|-<br />
|University of L'Aquila<br />
|Development of a post-processing tool for aerosol optical properties computations<br />
|[mailto:gabriele.curci@aquila.infn.it Gabriele Curci]<br />
|20 Jan 2011<br />
|-<br />
|UW<br />
|Investigating the chemistry of sulfate and nitrate aerosol formation utilizing observations and modeling of oxygen isotopes <br />
|[mailto:beckya@uw.edu Becky Alexander]<br />
|30 Jun 2010<br />
|-<br />
|UW<br />
|Developing a new parameterization of sea-salt emissions and dry deposition<br />
|[mailto:jaegle@uw.edu Lyatt Jaegl&eacute;]<br />
|01 Jul 2010<br />
|-<br />
|UW<br />
|Transport of aerosols to the Arctic using CALIOP observations<br />
|[mailto:dipierro@uw.edu Maurizio DiPierro]<br />
|01 Jul 2010<br />
|-<br />
|UW<br />
|Long-range transport of aerosols from Asia and N. America<br />
|[mailto:yrluan@uw.edu Yurong Luan]<br />
|01 Jul 2010<br />
|-<br />
|SNU<br />
|Evaluation of regional aerosol simulations with the nested G-C over East Asia<br />
|[mailto:rjpark@snu.ac.kr Rokjin Park]<br />
|15 Sep 2009<br />
|-<br />
|SNU<br />
|Implement the VBS method in GEOS-Chem for SOA <br />
|[mailto:rjpark@snu.ac.kr Rokjin Park] [mailto:cdswk@snu.ac.kr Dusung Jo]<br />
|28 Sep 2012<br />
|-<br />
|SNU<br />
|Siberian forest fire aerosols and climatic effects <br />
|[mailto:rjpark@snu.ac.kr Rokjin Park] [mailto:hb3099@hotmail.com Seungeun Lee]<br />
|28 Sep 2012<br />
|-<br />
|SUNY-Albany<br />
|Formation and evolution of particles in the troposphere <br />
|[mailto:yfq@asrc.cestm.albany.edu Fangqun Yu]<br />
|06 Mar 2010<br />
<br />
|-<br />
|}<br />
<br />
== Recent GEOS-Chem updates related to aerosols ==<br />
<br />
We have added the following updates pertaining to aerosols to recent GEOS-Chem versions: <br />
<br />
{| border=1 cellspacing=0 cellpadding=5 <br />
|-bgcolor="#CCCCCC" valign="top"<br />
!Version<br />
!Released<br />
!Description<br />
!Contact<br />
<br />
|-valign="top"<br />
|[[GEOS-Chem v9-01-03|v9-01-03]]<br />
|Sep 2012<br />
|[[Mineral_dust_aerosols#Sub-micron_dust_mass_partitioning_change|Dust submicron size distribution for optics]]<br />
|Dave Ridley, CSU<br />
<br />
|-valign="top"<br />
|[[GEOS-Chem v9-01-03|v9-01-03]]<br />
|Sep 2012<br />
|Modifications to sea salt [[Sea_salt_aerosols#SST_dependent_sea_salt_emissions|emissions]] and [[Sea_salt_aerosols#Updates_to_sea_salt_dry_deposition|dry deposition]]<br />
|Lyatt Jaegle and Becky Alexander, U Washington<br />
<br />
|-valign="top"<br />
|[[GEOS-Chem v9-01-03|v9-01-03]]<br />
|Sep 2012<br />
|Various updates to wet deposition to impact aerosol simulation, see [http://wiki.seas.harvard.edu/geos-chem/index.php/Wet_deposition#Further_updates Wet Deposition Further Updates]<br />
|Qiaoqiao Wang, Harvard<br />
<br />
|-valign="top"<br />
|[[GEOS-Chem v9-01-02|v9-01-02]]<br />
|Nov 2011<br />
|Implementation of [[APM aerosol microphysics]] model<br />
|Fangqun Yu, SUNY Albany<br>Gan Luo, SUNY Albany<br />
<br />
|-valign="top"<br />
|[[GEOS-Chem v9-01-02|v9-01-02]]<br />
|Nov 2011<br />
|[[GEOS-Chem_v9-01-01#Inconsistencies_in_aerosol_diagnostics|Removing inconsistencies in aerosol diagnostics]]<br />
|Sungshik Patrick Kim, Harvard<br />
<br />
|-valign="top"<br />
|[[GEOS-Chem v9-01-02|v9-01-02]]<br />
|Nov 2011<br />
|[[Dry_deposition#Aerosol_dry_deposition_velocities_over_snow_and_ice_surfaces|Updated aerosol dry deposition velocities over snow and ice surfaces]]<br />
|Jenny Fisher, Harvard<br />
<br />
|-valign="top"<br />
|[[GEOS-Chem v9-01-02|v9-01-02]]<br />
|Nov 2011<br />
|[[Anthropogenic_emissions#Streets_2000|Added seasonality to Streets NH3 emissions over Asia]]<br />
|Jenny Fisher, Harvard<br />
<br />
|-valign="top"<br />
|[[GEOS-Chem v9-01-01|v9-01-01]]<br />
|Jun 2011<br />
|[[FlexAOD]] post-processing tool for the community<br />
|Gabriele Curci, University of l'Aquila<br />
<br />
|-valign="top"<br />
|[[GEOS-Chem v8-03-02|v8-03-02]]<br />
|Sep 2010<br />
|Using GEOS-5 liquid water content (LWC) and cloud fraction fields directly (rather than a parameterization) for aqueous sulfate chemistry<br />
|Jenny Fisher, Harvard<br />
<br />
|-valign="top"<br />
|[[GEOS-Chem v8-03-02|v8-03-02]]<br />
|Sep 2010<br />
|Implementation of new Bond et al. BC/OC emissions <br />
* NOTE: Aerosol comparisons have been added to the standard 1 year benchmark, including speciated IMPROVE and PM2.5 from North America and Europe. Others are welcome to contribute 2005 observations to this effort (Colette Heald, CSU)<br />
|E. Leibensperger, Harvard<br />
<br />
|-valign="top"<br />
|[[GEOS-Chem v8-03-01|v8-03-01]]<br />
|May 2010<br />
|[[Photolysis mechanism#Updated aerosol optical properties|Updating of GEOS-Chem aerosol optics]]<br />
|Colette Heald, CSU<br />
<br />
|-valign="top"<br />
|[[GEOS-Chem v8-03-01|v8-03-01]]<br />
|May 2010<br />
|[[ISORROPIA II]] in GEOS-Chem, implemented along with new isoprene chemistry from Caltech<br />
|Havala Pye, (formerly Caltech, now EPA)<br />
<br />
|-valign="top"<br />
|[[GEOS-Chem v8-03-01|v8-03-01]]<br />
|May 2010<br />
|[[Secondary organic aerosols#Modification to SOA formulation|Recommendation to remove SOA condensation in inorganic aerosol from standard code]]<br />
|Colette Heald, CSU<br />
<br />
|-valign="top"<br />
|[[GEOS-Chem v8-03-01|v8-03-01]]<br />
|May 2010<br />
|Adding aromatic SOA to standard code, released with [[New isoprene scheme|Caltech isoprene chemistry]]<br />
|Daven Henze, CU Boulder<br />
<br />
|-valign="top"<br />
|[[GEOS-Chem v8-03-01|v8-03-01]]<br />
|May 2010<br />
|Implementation of [[TOMAS aerosol microphysics]] model<br />
|Peter Adams, CMU<br />
<br />
|-valign="top"<br />
|[[GEOS-Chem v8-02-04|v8-02-04]]<br />
|Feb 2010<br />
|Implementation of new [[Volcanic SO2 emissions from Aerocom|volcanic emissions of SO2 from AeroCom]]<br />
|Jenny Fisher, Harvard<br />
<br />
|-valign="top"<br />
|[[GEOS-Chem v8-02-04|v8-02-04]]<br />
|Feb 2010<br />
|[[Sea salt aerosols#Updates to sea salt emissions algorithm|Updates and fixes to sea salt routine]]<br />
|Lyatt Jaegle, UW<br>Becky Alexander, UW<br />
<br />
|}<br />
<br />
--[[User:Bmy|Bob Y.]] 15:48, 6 September 2012 (EDT)<br />
<br />
== On-going Aerosol Working Group Developments ==<br />
<br />
We plan to add these aerosol-related updates to GEOS-Chem in the next few releases:<br />
<br />
{| border=1 cellspacing=0 cellpadding=5 <br />
|-bgcolor="#CCCCCC" valign="top"<br />
!Update<br />
!Authors<br />
!Planned release<br />
<br />
|-valign="top"<br />
|[[Secondary organic aerosols#SOA simulation with semi-volatile POA|Expansion of SOA option (SOA + nonvolatile POA)]]<br />
|Havala Pye (formerly Caltech, now EPA)<br />
|Implemented in [[GEOS-Chem v9-02|v9-02]], awaiting release<br />
<br />
|-valign="top"<br />
|[[Coupling GEOS-Chem with RRTMG|Integrating a radiative transfer model into GEOS-Chem]]<br />
|Colette Heald (MIT)<br>David Ridley (MIT)<br>Karen Cady-Pereira (AER)<br>Matt Alvarado (AER)<br />
|Delivered to [[GEOS-Chem Support Team|GCST]]; slated for inclusion post-[[GEOS-Chem v9-02|v9-02]]<br />
<br />
|-valign="top"<br />
|[[Mineral dust aerosols#Surface chemistry on dust|Simplified description of uptake of SO2, nitric acid and sulfuric acid on mineral dust]]<br />
|Duncan Fairlie, Langley<br />
|Delivered to [[GEOS-Chem Support Team|GCST]]; slated for inclusion post-[[GEOS-Chem v9-02|v9-02]]<br />
<br />
|}<br />
<br />
--[[User:Bmy|Bob Y.]] 15:49, 6 September 2012 (EDT)<br />
<br />
== Future Development Priorities ==<br />
<br />
These topics were raised at the IGC5 as future updates & development priorities for GEOS-Chem (with additions from the community in recent months): <br />
<br />
{| border=1 cellspacing=0 cellpadding=5 <br />
|-bgcolor="#CCCCCC" valign="top"<br />
!Update<br />
!Authors<br />
!Priority<br />
<br />
|-valign="top"<br />
|Integrating online radiative forcing calculations into GEOS-Chem<br />
|Colette Heald (MIT), David Ridley (MIT) <br />
|high<br />
<br />
|-valign="top"<br />
|Addition of effective wind speed to met fields for consistent resolution dust/sea salt emissions<br />
|Jeff Pierc (Dalhousie), David Ridley (MIT) and GCST<br />
|medium<br />
<br />
|-valign="top"<br />
|Addition of deposition observations to aerosol benchmark<br />
|Colette Heald (MIT)<br />
|low<br />
<br />
|-valign="top"<br />
|dust simulation expansion (tagged simulation, oxalate, P, Fe chemistry)<br />
|Matthew Johnson (NC State)<br />
|low<br />
<br />
|-valign="top"<br />
|DMS oxidation scheme updating<br />
|TBD<br />
|low<br />
<br />
|-valign="top"<br />
|Investigation of how aerosol water is treated in PM comparisons (ISORROPIA vs. hygroscopic growth curves)<br />
|TBD<br />
|low<br />
<br />
|-valign="top"<br />
|APM capability for nested grid<br />
|Fangqun Yu (SUNY Albany)<br />
|<br />
<br />
|-valign="top"<br />
|TOMAS capability for nested grid<br />
|Jeff Pierce (Dalhousie)<br />
|<br />
<br />
|-valign="top"<br />
|Cloudwater pH for sulfate formation<br />
|Becky Alexander (U Washington)<br />
|<br />
<br />
|-valign="top"<br />
|Tagged sulfate and nitrate simulation<br />
|Becky Alexander (U. Washington)<br />
|<br />
<br />
|-valign="top"<br />
|Improved dust simulation in nested-grid model<br />
|Rokjin Park (Seoul National University)<br />
|<br />
<br />
<br />
<br />
|}<br />
<br />
--[[User:Cheald|Colette Heald]] 12:39, 9 May 2011 (EDT)<br><br />
--[[User:Bmy|Bob Y.]] 14:14, 8 August 2011 (EDT)<br />
<br />
== Aerosol optical properties ==<br />
<br />
Please visit our new [[Aerosol optical properties|aerosol optical properties wiki page]] for more information about:<br />
<br />
# [http://www.atmos.colostate.edu/~heald/docs/GEOS_Chem_optics_description.pdf Description of GEOS-Chem aerosol optics] <br />
# [[Aerosol optical properties#Aerosol optical properties update for GEOS-Chem v8-03-01|Aerosol optical properties update for v8-03-01]]<br />
# [[Aerosol optical properties#Aerosol optical properties at high spectral resolution|Aerosol optical properties at high spectral resolution]]<br />
<br />
Here is a list of updates that were considered (2, 4 and 5 are included in the [[GEOS-Chem v8-03-01|v8-03-01]] update):<br />
<br />
{| border=1 cellspacing=0 cellpadding=5<br />
|- bgcolor="#cccccc"<br />
!Proposed Update (include information on old values if known) <br />
!Reference <br />
!Contact<br />
|-<br />
|Account for absorption in the 300-500 nm range by OC, which may be greater than presently treated. Currently we have OC ss albedo in this range being > 0.95, though it may be lower than 0.85.<br />
|[http://www.atmos-chem-phys.net/8/6665/2008/acp-8-6665-2008.pdf Barnard et al, 2008]<br />
|[mailto:daven.henze@colorado.edu Daven Henze] <br />
|-<br />
|Expand Mie table to include more wavelengths. Most literature values compare at 500 or 550 nm. Current GC lookup table includes 400, then 600. A wider range is also necessary for integrating to get total SW flux; something greater than 1500 perhaps?<br />
|[http://www.atmos-chem-phys.net/4/183/2004/acp-4-183-2004.html Martin et al, 2004]<br />
|[mailto:daven.henze@colorado.edu Daven Henze] <br />
|-<br />
|Consider using the water content of the fine mode aerosol calculated in the aerosol thermodynamic module rather than hygroscopic growth curves to estimate wet particle effective radius.<br />
|N/A<br />
|[mailto:daven.henze@colorado.edu Daven Henze] <br />
|-<br />
|Consider changing the "default" AOD diagnostic wavelength from 400 nm to 550nm (for matching with MODIS & CALIPSO)<br />
|N/A<br />
|[mailto:heald@atmos.colostate.edu.edu Colette Heald] <br />
|-<br />
|Treat the radius of hydrophylic organic aerosol similar to that of sulfate. This is based on observations that organic aerosol and sulfate are often internally mixed. Should we consider something similar for black carbon? <br />
|[http://cat.inist.fr/?aModele=afficheN&cpsidt=17219054 Rupkheti et al., 2007]<br />
|[mailto:randall.martin@dal.ca Randall Martin] <br />
|}<br />
<br />
== Related Topics ==<br />
* [[Aerosol emissions]]<br />
* Aerosol microphysics simulations:<br />
** [[APM aerosol microphysics|with APM]]<br />
** [[TOMAS aerosol microphysics|with TOMAS]]<br />
* [[Aerosol-only simulation]]<br />
* [[Aerosol thermodynamical equilibrium]]<br />
* [[Carbonaceous aerosols]]<br />
* [[Mineral dust aerosols]]<br />
* [[Secondary organic aerosols]]<br />
* [[Sea salt aerosols]]<br />
* [[Sulfate aerosols]]<br />
* [[ISORROPIA II]]<br />
* [[Photolysis mechanism|Photolysis mechanism in GEOS-Chem]]<br />
<br />
== Issues / Topics for Discussion ==</div>Rvmartinhttps://wiki.seas.harvard.edu/geos-chem/index.php?title=GEOS-Chem_v9-02_benchmark_history&diff=14460GEOS-Chem v9-02 benchmark history2013-09-17T11:15:22Z<p>Rvmartin: /* v9-02q */</p>
<hr />
<div>On this page we have posted complete information about all benchmark simulations (both 1-month and 1-year) for [[GEOS-Chem v9-02]].<br />
<br />
== 1-year benchmarks ==<br />
<br />
=== v9-02l-Run0 ===<br />
<br />
'''''This 1-year benchmark simulation was approved by the [http://acmg.seas.harvard.edu/geos/geos_steering_cmte.html GEOS-Chem Steering Committee] on 02 Jul 2013.'''''<br />
<br />
Three GEOS-Chem model versions were compared to each other:<br />
<br />
{| border=1 cellspacing=0 cellpadding=5 <br />
|- bgcolor="#CCCCCC"<br />
!Color <br />
!width="110px"|Quantity Plotted<br />
!width="110px"|Met Type<br />
!width="450px"|Anthro emissions<br />
!width="400px"|Tropospheric chemistry mechanism<br />
!Linoz<br />
!Annual Mean OH<br>[10<sup>5</sup> molec/cm3]<br />
<br />
|-align="center"<br />
|Red<br />
|[[GEOS-Chem v9-02 benchmark history#v9-02g-Run0|v9-02g-Run0]]<br />
|GEOS-5, 4x5<br />
|Same as [[GEOS-Chem v9-01-03 benchmark history#Run0|v9-01-03r-Run0]]<br />
|Same as [[GEOS-Chem v9-02 benchmark history#v9-02f-Run0|v9-02f-Run0]]<br>'''+ [[New_isoprene_scheme|Adopt Paulot isoprene scheme as standard]] <br>+ [[New_isoprene_scheme#Update_One_-_RO2.2BHO2_Reaction_Rate|Fix RO2+HO2 rate constant]]'''<br />
|ON<br />
|12.472<br />
<br />
|-align="center"<br />
|Green<br />
|[[GEOS-Chem v9-02 benchmark history#v9-02j-Run0|v9-02j-Run0]]<br />
|GEOS-5, 4x5<br />
|" "<br />
|'''+ [[NOx-Ox-HC-aerosol#Removal of NOx and Ox partitioning|Removal of NOx-Ox partitioning]] <br>+[[ChemTelecon20111202|Inhibition of N2O5 uptake by nitrate aerosol]] <br>+[[NOx-Ox-HC-aerosol#Improved_HO2_uptake|Improved HO2 uptake by aerosol]]'''<br />
|ON<br />
|12.238<br />
<br />
|-align="center"<br />
|Blue<br />
|[[GEOS-Chem v9-02 benchmark history#v9-02l-Run0|v9-02l-Run0]]<br />
|GEOS-5, 4x5<br />
|'''+[[EPA/NEI05 North American emissions#Updated NH3 seasonal scaling factors in v9-02|Updated NH3 seasonal scaling factors over the US]]<br>+ [[Anthropogenic_emissions#CAC|Updated Canadian NH3 inventory]]<br>+ [[GEOS-Chem v9-02#Bug fixes in biofuel_mod.F and emfossil.F|Fix diurnal NOx scale factors and fix double counting of biofuels over Mexico, Canada, and Europe]]<br>+ [[Biomass_burning_emissions#Bug_fix_for_3-hourly_GFED3_emissions|Bug fix for 3-hourly GFED3 emissions]]<br>+ [[Scale factors for anthropogenic emissions#Bug fix for anthropogenic scaling factors for years 2006 and later|Bug fix for anthropogenic scaling factors for years 2006 and later]]<br>+ [[Ship_emissions#Bugs_in_ship_emissions_and_non-local_PBL_mixing|Correct additional bugs in ship emissions w/ non-local PBL mixing]]<br>+ [[Ship emissions#Bug in ship CO emissions|Bug fix for ship CO emissions]]'''<br />
|" "<br />
|ON<br />
|12.570<br />
<br />
|-align="center"<br />
|Black <br />
|Observations<br />
|&nbsp; <br />
|&nbsp; <br />
|&nbsp;<br />
|&nbsp;<br />
!&nbsp;<br />
|}<br />
<br />
<br />
The output plots for Run0 (both PostScript and PDF format) may be downloaded from:<br />
<br />
ftp ftp.as.harvard.edu<br />
cd gcgrid/geos-chem/1yr_benchmarks/v9-02/v9-02l/Run0/output/ps<br />
mget *<br />
cd gcgrid/geos-chem/1yr_benchmarks/v9-02/v9-02l/Run0/output/pdf<br />
mget *<br />
<br />
You may also view the PDF files online by pointing your browser to<br />
<br />
http://ftp.as.harvard.edu/gcgrid/geos-chem/1mo_benchmarks/v9-02/v9-02l/<br />
<br />
--[[User:Melissa Payer|Melissa Payer]] 17:14, 26 June 2013 (EDT)<br />
<br />
=== v9-02j-Run0 ===<br />
<br />
'''''This 1-year benchmark simulation was approved by the [http://acmg.seas.harvard.edu/geos/geos_steering_cmte.html GEOS-Chem Steering Committee] on 03 Jun 2013.'''''<br />
<br />
Three GEOS-Chem model versions were compared to each other:<br />
<br />
{| border=1 cellspacing=0 cellpadding=5 <br />
|- bgcolor="#CCCCCC"<br />
!Color <br />
!Quantity Plotted<br />
!Met Type<br />
!Anthro emissions<br />
!Tropospheric chemistry mechanism<br />
!Linoz<br />
!Annual Mean OH<br>[10<sup>5</sup> molec/cm3]<br />
<br />
|-align="center"<br />
|Red<br />
|[[GEOS-Chem v9-02 benchmark history#v9-02f-Run0|v9-02f-Run0]]<br />
|GEOS-5, 4x5<br />
|Same as [[GEOS-Chem v9-01-03 benchmark history#Run0|v9-01-03r-Run0]]<br />
|Same as [[GEOS-Chem_v9-01-03_benchmark_history#Run1|v9-01-03r-Run1]]'''+ [[Updating_standard_chemistry_with_JPL_10-6|Inorganic chemistry updates]] <br>+ [[Methyl peroxy nitrate chemistry|Methyl peroxy nitrate (MPN) chemistry]]'''<br />
|ON<br />
|11.503<br />
<br />
|-align="center"<br />
|Green<br />
|[[GEOS-Chem v9-02 benchmark history#v9-02g-Run0|v9-02g-Run0]]<br />
|GEOS-5, 4x5<br />
|" "<br />
|'''+ [[New_isoprene_scheme|Adopt Paulot isoprene scheme as standard]] <br>+ [[New_isoprene_scheme#Update_One_-_RO2.2BHO2_Reaction_Rate|Fix RO2+HO2 rate constant]]'''<br />
|ON<br />
|12.472<br />
<br />
|-align="center"<br />
|Blue<br />
|[[GEOS-Chem v9-02 benchmark history#v9-02j-Run0|v9-02j-Run0]]<br />
|GEOS-5, 4x5<br />
|" "<br />
|'''+ [[NOx-Ox-HC-aerosol#Removal of NOx and Ox partitioning|Removal of NOx-Ox partitioning]] <br>+[[ChemTelecon20111202|Inhibition of N2O5 uptake by nitrate aerosol]] <br>+[[NOx-Ox-HC-aerosol#Improved_HO2_uptake|Improved HO2 uptake by aerosol]]<br />
|ON<br />
|12.238<br />
<br />
|-align="center"<br />
|Black <br />
|Observations<br />
|&nbsp; <br />
|&nbsp; <br />
|&nbsp;<br />
|&nbsp;<br />
!&nbsp;<br />
|}<br />
<br />
<br />
The output plots for Run0 (both PostScript and PDF format) may be downloaded from:<br />
<br />
ftp ftp.as.harvard.edu<br />
cd gcgrid/geos-chem/1yr_benchmarks/v9-02/v9-02j/Run0/output/ps<br />
mget *<br />
cd gcgrid/geos-chem/1yr_benchmarks/v9-02/v9-02j/Run0/output/pdf<br />
mget *<br />
<br />
You may also view the PDF files online by pointing your browser to<br />
<br />
http://ftp.as.harvard.edu/gcgrid/geos-chem/1yr_benchmarks/v9-02/v9-02j/Run0/output/pdf/<br />
<br />
--[[User:Melissa Payer|Melissa Payer]] 13:02, 31 May 2013 (EDT)<br />
<br />
=== v9-02g-Run0 ===<br />
<br />
'''''This 1-year benchmark simulation was approved by the [http://acmg.seas.harvard.edu/geos/geos_steering_cmte.html GEOS-Chem Steering Committee] on 01 Apr 2013.'''''<br />
<br />
Three GEOS-Chem model versions were compared to each other:<br />
<br />
{| border=1 cellspacing=0 cellpadding=5 <br />
|- bgcolor="#CCCCCC"<br />
!Color <br />
!Quantity Plotted<br />
!Met Type<br />
!Anthro emissions<br />
!Soil NOx emissions<br />
!Tropospheric chemistry mechanism<br />
!Linoz<br />
!Annual Mean OH<br>[10<sup>5</sup> molec/cm3]<br />
<br />
|-align="center"<br />
|Red<br />
|[[GEOS-Chem v9-02 benchmark history#v9-02b-Run0|v9-02b-Run0]]<br />
|GEOS-5, 4x5<br />
|Same as [[GEOS-Chem v9-01-03 benchmark history#Run0|v9-01-03r-Run0]]<br />
|'''[[Soil_NOx_emissions#Updated_soil_NOx_emissions_algorithm|New soil NOx emission module]]'''<br />
|Same as [[GEOS-Chem v9-01-03 benchmark history#Run1|v9-01-03r-Run1]]<br />
|ON<br />
|11.424<br />
<br />
|-align="center"<br />
|Green<br />
|[[GEOS-Chem v9-02 benchmark history#v9-02f-Run0|v9-02f-Run0]]<br />
|GEOS-5, 4x5<br />
|" "<br />
|" "<br />
|'''+ [[Updating_standard_chemistry_with_JPL_10-6|Inorganic chemistry updates]] <br>+ [[Methyl peroxy nitrate chemistry|Methyl peroxy nitrate (MPN) chemistry]]'''<br />
|ON<br />
|11.503<br />
<br />
|-align="center"<br />
|Blue<br />
|[[GEOS-Chem v9-02 benchmark history#v9-02g-Run0|v9-02g-Run0]]<br />
|GEOS-5, 4x5<br />
|" "<br />
|" "<br />
|'''+ [[New_isoprene_scheme|Adopt Paulot isoprene scheme as standard]] <br>+ [[New_isoprene_scheme#Update_One_-_RO2.2BHO2_Reaction_Rate|Fix RO2+HO2 rate constant]]'''<br />
|ON<br />
|12.472<br />
<br />
|-align="center"<br />
|Black <br />
|Observations<br />
|&nbsp; <br />
|&nbsp; <br />
|&nbsp;<br />
|&nbsp;<br />
|&nbsp;<br />
!&nbsp;<br />
|}<br />
<br />
<br />
The output plots for Run0 (both PostScript and PDF format) may be downloaded from:<br />
<br />
ftp ftp.as.harvard.edu<br />
cd gcgrid/geos-chem/1yr_benchmarks/v9-02/v9-02g/Run0/output/ps<br />
mget *<br />
cd gcgrid/geos-chem/1yr_benchmarks/v9-02/v9-02g/Run0/output/pdf<br />
mget *<br />
<br />
You may also view the PDF files online by pointing your browser to<br />
<br />
http://ftp.as.harvard.edu/gcgrid/geos-chem/1yr_benchmarks/v9-02/v9-02g/Run0/output/pdf/<br />
<br />
--[[User:Melissa Payer|Melissa Payer]] 12:15, 29 March 2013 (EDT)<br />
<br />
=== v9-02f-Run0 ===<br />
<br />
'''''This 1-year benchmark simulation was approved by the [http://acmg.seas.harvard.edu/geos/geos_steering_cmte.html GEOS-Chem Steering Committee] on 20 Mar 2013.'''''<br />
<br />
Three GEOS-Chem model versions were compared to each other:<br />
<br />
{| border=1 cellspacing=0 cellpadding=5 <br />
|- bgcolor="#CCCCCC"<br />
!Color <br />
!Quantity Plotted<br />
!Met Type<br />
!Anthro emissions<br />
!Soil NOx emissions<br />
!Tropospheric chemistry mechanism<br />
!Linoz<br />
!Annual Mean OH<br>[10<sup>5</sup> molec/cm3]<br />
<br />
|-align="center"<br />
|Red<br />
|[[GEOS-Chem v9-01-03 benchmark history#Run1|v9-01-03r-Run1]]<br />
|GEOS-5, 4x5<br />
|Same as [[GEOS-Chem v9-01-03 benchmark history#Run0|v9-01-03r-Run0]]<br />
|Original soil NOx algorithm based on Yienger & Levy [1995]<br />
|Same as [[GEOS-Chem_v8-02-01#Run0|v8-02-01-Run0]] <br>'''+ [[Bromine chemistry mechanism|Bromine chemistry mechanism]]'''<br />
|ON<br />
|11.356<br />
<br />
|-align="center"<br />
|Green<br />
|[[GEOS-Chem v9-02 benchmark history#v9-02b-Run0|v9-02b-Run0]]<br />
|GEOS-5, 4x5<br />
|" "<br />
|'''[[Soil_NOx_emissions#Updated_soil_NOx_emissions_algorithm|New soil NOx emission module]]'''<br />
|" "<br />
|ON<br />
|11.424<br />
<br />
|-align="center"<br />
|Blue<br />
|[[GEOS-Chem v9-02 benchmark history#v9-02f-Run0|v9-02f-Run0]]<br />
|GEOS-5, 4x5<br />
|" "<br />
|" "<br />
|'''+ [[Updating_standard_chemistry_with_JPL_10-6|Inorganic chemistry updates]] <br>+ [[Methyl peroxy nitrate chemistry|Methyl peroxy nitrate (MPN) chemistry]]'''<br />
|ON<br />
|11.503<br />
<br />
|-align="center"<br />
|Black <br />
|Observations<br />
|&nbsp; <br />
|&nbsp; <br />
|&nbsp;<br />
|&nbsp;<br />
|&nbsp;<br />
!&nbsp;<br />
|}<br />
<br />
<br />
The output plots for Run0 (both PostScript and PDF format) may be downloaded from:<br />
<br />
ftp ftp.as.harvard.edu<br />
cd gcgrid/geos-chem/1yr_benchmarks/v9-02/v9-02f/Run0/output/ps<br />
mget *<br />
cd gcgrid/geos-chem/1yr_benchmarks/v9-02/v9-02f/Run0/output/pdf<br />
mget *<br />
<br />
You may also view the PDF files online by pointing your browser to<br />
<br />
http://ftp.as.harvard.edu/gcgrid/geos-chem/1yr_benchmarks/v9-02/v9-02f/Run0/output/pdf/<br />
<br />
--[[User:Melissa Payer|Melissa Payer]] 18:06, 18 March 2013 (EDT)<br />
<br />
=== v9-02b-Run0 ===<br />
<br />
''NOTE: A 1-year benchmark simulation was performed for v9-02b to serve as a reference when benchmarking the chemistry updates implemented in v9-02f.''<br />
<br />
Three GEOS-Chem model versions were compared to each other:<br />
<br />
{| border=1 cellspacing=0 cellpadding=5 <br />
|- bgcolor="#CCCCCC"<br />
!Color <br />
!Quantity Plotted<br />
!Met Type<br />
!Anthro emissions<br />
!Soil NOx emissions<br />
!Tropospheric chemistry mechanism<br />
!Linoz<br />
!Annual Mean OH<br>[10<sup>5</sup> molec/cm3]<br />
<br />
|-align="center"<br />
|Red<br />
|[[GEOS-Chem v9-01-03 benchmark history#Run0|v9-01-03r-Run0]]<br />
|GEOS-5, 4x5<br />
|Same as [[GEOS-Chem_v9-01-02_benchmark_history#Run1|v9-01-02-Run1]]<br> '''+ [[Implementation of RETRO Anthropogenic Emissions#RETRO anthropogenic ethane emissions are too low|C2H6 emissions from offline simulation]]<br>+ [[Ship emissions#PARANOX ship plume model|PARANOX ship plume emissions]]'''<br />
|Original soil NOx algorithm based on Yienger & Levy [1995]<br />
|Same as [[GEOS-Chem_v8-02-01#Run0|v8-02-01-Run0]]<br />
|ON<br />
|11.858<br />
<br />
|-align="center"<br />
|Green<br />
|[[GEOS-Chem v9-01-03 benchmark history#Run1|v9-01-03r-Run1]]<br />
|GEOS-5, 4x5<br />
|" "<br />
|" "<br />
|'''+ [[Bromine chemistry mechanism|Bromine chemistry mechanism]]'''<br />
|ON<br />
|11.356<br />
<br />
|-align="center"<br />
|Blue<br />
|[[GEOS-Chem_v9-02_benchmark_history#v9-02b-Run0|v9-02b-Run0]]<br />
|GEOS-5, 4x5<br />
|" "<br />
|'''[[Soil_NOx_emissions#Updated_soil_NOx_emissions_algorithm|New soil NOx emission module]]'''<br />
|" "<br />
|ON<br />
|11.424<br />
<br />
|-align="center"<br />
|Black <br />
|Observations<br />
|&nbsp; <br />
|&nbsp; <br />
|&nbsp;<br />
|&nbsp;<br />
|&nbsp;<br />
!&nbsp;<br />
|}<br />
<br />
<br />
The output plots for Run0 (both PostScript and PDF format) may be downloaded from:<br />
<br />
ftp ftp.as.harvard.edu<br />
cd gcgrid/geos-chem/1yr_benchmarks/v9-02/v9-02b/Run0/output/ps<br />
mget *<br />
cd gcgrid/geos-chem/1yr_benchmarks/v9-02/v9-02b/Run0/output/pdf<br />
mget *<br />
<br />
You may also view the PDF files online by pointing your browser to<br />
<br />
http://ftp.as.harvard.edu/gcgrid/geos-chem/1yr_benchmarks/v9-02/v9-02b/Run0/output/pdf/<br />
<br />
--[[User:Melissa Payer|Melissa Payer]] 18:06, 18 March 2013 (EDT)<br />
<br />
== 1-month benchmarks ==<br />
<br />
=== v9-02q ===<br />
<br />
Here is the assessment form for 1-month benchmark simulation '''v9-02q'''.<br />
<br />
{| border=1 cellspacing=0 cellpadding=5<br />
|-bgcolor="#cccccc"<br />
!width="325px"|Description<br />
! <br />
|- <br />
|New features added into GEOS-Chem:<br />
|<br />
*[[Aerosol optical properties#Better representation of OC growth with RH and correction to sulfate optics|Update jv_spec.dat and jv_spec_aod.dat with better representation of OC growth with RH and correction to sulfate optics]]<br />
*[[Aerosol_optical_properties#Fix_to_jv_spec_aod.dat|Bug fix in jv_spec_aod.dat for dust species]]<br />
|- <br />
|Developer name(s) and institution(s):<br />
|<br />
*''jv_spec.dat updates:'' David Ridley (MIT), Randall Martin (Dalhousie)<br />
*''jv_spec_aod.dat fix:'' Gabriele Curci (U. L'Aquila)<br />
|-<br />
|Version, resolution, met fields used:<br />
|v9-02, GEOS-5 (47L), 4x5<br />
|-<br />
|1-month benchmark finished on:<br />
|Fri Sep 13 21:06:31 EDT 2013<br />
|-<br />
|Performance statistics:<br />
|<br />
*Ran on 8 CPUs of bench@titan-08.as.harvard.edu (2.659 GHz x 8 CPU) <br />
*Wall time: 2:37<br />
*Scalability: 7.2660<br />
|-<br />
|Compared to previous benchmark:<br />
|[[#v9-02p|v9-02p]]<br />
|-<br />
|This update will impact:<br>(select all that apply with '''boldface''')<br />
|Advection, BL Mixing, Convection, Met Fields, Dry Dep, Wet Dep, Stratosphere, Anthro Emiss, Biogenic Emiss, Biomass Emiss, '''Photolysis''', Chemistry, Other (please specify):<br />
|-<br />
|Plots may be viewed at:<br />
|<tt>ftp://ftp.as.harvard.edu/pub/exchange/mpayer/1mo_quick_look/v9-02q/</tt><br />
|-bgcolor="#cccccc"<br />
!Metrics<br />
! <br />
|-<br />
|Global mean OH (from log file):<br />
|13.8470394111778 x 10<sup>5</sup> molec/cm<sup>3</sup><br />
|-<br />
|Methyl chloroform lifetime:<br />
|4.4898 years<br />
|-<br />
|Did either of these change by more than 5%?<br />
|No. The mean OH differs by 0.82%, and the MCF lifetimes differ by -0.89%. <br />
|-<br />
|At the SURFACE, list all species that changed by 10% or more:<br />
|NO, ISOP, HNO3, H2O2, MVK, MACR, PMN, PPN, PRPE, N2O5, HNO4, MP, DMS, NH3, NIT, Br2, Br, BrO, HOBr, HBr, BrNO2, BrNO3, MPN, ISOPN, MOBA, HAC, GLYC, MMN, RIP, IEPOX, MAP, NO2, NO3, HNO2, OH, HO2<br />
|-<br />
|Comments on SURFACE differences:<br />
|<br />
*<br />
*Differences in NO, ISOP, MVK, MACR, PMN, ISOPN, MOBA, RIP, and IEPOX are mainly over the oceans or Antarctica. These large ratios can be attributed to small number differences where concentrations are very low. <br />
*Differences in NH3 and NIT can be attributed to [[ISORROPIA_II#Persistence of problem|numerical noise from ISORROPIA]].<br />
|-<br />
|At 500 hPa, list all species that changed by 10% or more:<br />
|NO, ISOP, MVK, MACR, PMN, PRPE, N2O5, HNO4, DMS, NH3, NIT, Br2, Br, BrO, HOBr, HBr, BrNO2, BrNO3, MPN, ISOPN, MOBA, GLYC, MMN, RIP, IEPOX, NO3, HNO2<br />
|-<br />
|Comments on 500 hPa differences:<br />
|<br />
*<br />
*Differences in NO, ISOP, MVK, MACR, PMN, ISOPN, MOBA, RIP, and IEPOX are mainly over the oceans or Antarctica. These large ratios can be attributed to small number differences where concentrations are very low. <br />
*Differences in NH3 and NIT can be attributed to [[ISORROPIA_II#Persistence of problem|numerical noise from ISORROPIA]].<br />
|-<br />
|In the ZONAL MEAN differences, list all species that changed by 10% or more:<br />
|NO, ALK4, ISOP, H2O2, MVK, MACR, PMN, PRPE, C3H8, N2O5, HNO4, DMS, SO4s, NH3, NIT, NITs, Br2, Br, BrO, HOBr, HBr, BrNO2, BrNO3, MPN, ISOPN, MOBA, HAC, GLYC, MMN, RIP, IEPOX, NO2, NO3, HNO2, OH, HO2<br />
|-<br />
|Comments on ZONAL MEAN differences:<br />
|<br />
*<br />
*Differences in NO, ALK4, ISOP, MACR, PMN, C3H8, SO4s, ISOPN, and RIP can be attributed to small number differences where concentrations are very low. <br />
*Differences in NH3, NIT, and NITs can be attributed to [[ISORROPIA_II#Persistence of problem|numerical noise from ISORROPIA]].<br />
|-<br />
|In the EMISSION RATIO maps, list all species that changed by 10% or more:<br />
|None<br />
|-<br />
|Comments on EMISSION RATIO differences:<br />
|<br />
|-<br />
|Additional or summary comments:<br />
|The changes in jv_spec.dat generally reduce AOD and aerosol surface area, in turn increasing boundary layer OH which causes changes in other species. <br />
|<br />
|-bgcolor="#cccccc"<br />
!Approval<br />
!<br />
|-<br />
|Requires further investigation:<br />
|TBD<br />
|- <br />
|Approved by:<br />
|Randall Martin<br />
|-<br />
|Date of approval:<br />
|17 Sep 2013<br />
|}<br />
--[[User:Melissa Payer|Melissa Sulprizio]] 17:28, 13 September 2013 (EDT)<br />
<br />
=== v9-02p ===<br />
<br />
Here is the assessment form for 1-month benchmark simulation '''v9-02p'''.<br />
<br />
{| border=1 cellspacing=0 cellpadding=5<br />
|-bgcolor="#cccccc"<br />
!width="325px"|Description<br />
! <br />
|- <br />
|New features added into GEOS-Chem:<br />
|<br />
*[[Sulfate_aerosols#Cloud_water_pH_for_sulfate_formation|Cloud water pH for sulfate formation]]<br />
*[[Dry_deposition#Error_in_definition_of_RIP_and_IEPOX_drydep_species|Fix molecular weights of RIP and IEPOX used in drydep_mod.F]]<br />
*[[Numerical_issues_discovered_in_GEOS-Chem|Bug fixes to prevent floating-point invalid errors]]<br />
|- <br />
|Developer name(s) and institution(s):<br />
|<br />
*''Cloud pH:'' Becky Alexander (U. Washington) <br />
*''Drydep fix:'' [[GEOS-Chem Support Team]]<br />
*''FPE bug fixes:'' [[GEOS-Chem Support Team]]<br />
|-<br />
|Version, resolution, met fields used:<br />
|v9-02, GEOS-5 (47L), 4x5<br />
|-<br />
|1-month benchmark finished on:<br />
|Tue Sep 10 23:50:47 EDT 2013<br />
|-<br />
|Performance statistics:<br />
|<br />
*Ran on 8 CPUs of bench@titan-09.as.harvard.edu (2.659 GHz x 8 CPU) <br />
*Wall time: 2:36<br />
*Scalability: 7.2645<br />
|-<br />
|Compared to previous benchmark:<br />
|[[#v9-02o|v9-02o]]<br />
|-<br />
|This update will impact:<br>(select all that apply with '''boldface''')<br />
|Advection, BL Mixing, Convection, Met Fields, Dry Dep, Wet Dep, Stratosphere, Anthro Emiss, Biogenic Emiss, Biomass Emiss, Photolysis, '''Chemistry''', Other (please specify):<br />
|-<br />
|Plots may be viewed at:<br />
|<tt>ftp://ftp.as.harvard.edu/pub/exchange/mpayer/1mo_quick_look/v9-02p/</tt><br />
|-bgcolor="#cccccc"<br />
!Metrics<br />
! <br />
|-<br />
|Global mean OH (from log file):<br />
|13.7340615285201 x 10<sup>5</sup> molec/cm<sup>3</sup><br />
|-<br />
|Methyl chloroform lifetime:<br />
|4.5300 years<br />
|-<br />
|Did either of these change by more than 5%?<br />
|No. The mean OH differs by -0.12%, and the MCF lifetimes differ by 0.17%. <br />
|-<br />
|At the SURFACE, list all species that changed by 10% or more:<br />
|ISOP, HNO3, H2O2, MVK, MACR, PMN, N2O5, HNO4, DMS, SO2, SO4, SO4s, NH3, NH4, NIT, NITs, Br2, Br, BrO, HOBr, HBr, BrNO2, BrNO3, ISOPN, MOBA, HAC, GLYC, RIP, IEPOX, NO3, HNO2, HO2<br />
|-<br />
|Comments on SURFACE differences:<br />
|<br />
*Differences in SO2 and SO4 over the oceans are related to enhanced reaction rates of SO2 by O3 related to increased cloud pH due to alkaline sea salt aerosol.<br />
*Increased SO4 over the oceans impacts the gas-particle partitioning of NH3/NH4 and HNO3/NIT. Increased aerosol acidity (due to increased SO4) increases NH4 (while decreasing NH3) and increases HNO3 (while decreasing NIT).<br />
*Increased SO4 aerosol also increases the rate of N2O5 hydrolysis leading to lower N2O5. This should also contribute to higher total nitrate (HNO3 + NIT).<br />
*Increased in-cloud oxidation of SO2 by O3 in the MBL due to higher cloud pH will decrease the other SO2 oxidation pathways. This is shown in lower SO4S due to decreases in heterogeneous oxidation of SO2 on the surface of sea salt aerosol. Since oxidation of SO2 and condensation of HNO3 compete for available sea salt aerosol alkalinity, lower SO4S results in higher NITS.<br />
*Small increases in H2O2 result from less SO2 oxidation by H2O2 in favor of oxidation by O3 at the higher cloud pH in the MBL.<br />
*Differences in ISOP, HNO3, MVK, MACR, PMN, N2O5, Br2, Br, BrO, HOBr, HBr, BrNO2, BrNO3, ISOPN, MOBA, GLYC, RIP, IEPOX are mainly over the oceans or Antarctica. These large ratios can be attributed to small number differences where concentrations are very low.<br />
*Differences in NH3, NH4, NIT, NITs can be attributed to [[ISORROPIA_II#Persistence of problem|numerical noise from ISORROPIA]].<br />
|-<br />
|At 500 hPa, list all species that changed by 10% or more:<br />
|NO, ISOP, MVK, MACR, PMN, DMS, SO2, SO4, SO4s, NH3, NIT, NITs, ISOPN, MOBA, HAC, GLYC, RIP, IEPOX<br />
|-<br />
|Comments on 500 hPa differences:<br />
|<br />
*Differences in SO2, SO4, NH3, SO4s, NIT and NITs are due due to the same processes described for the surface. <br />
*Differences in NO, ISOP, MVK, MACR, PMN, ISOPN, MOBA, HAC, GLYC, RIP, IEPOX are mainly over the oceans or Antarctica. These large ratios can be attributed to small number differences where concentrations are very low.<br />
*Differences in NH3, NIT, NITs can be attributed to [[ISORROPIA_II#Persistence of problem|numerical noise from ISORROPIA]]. <br />
|-<br />
|In the ZONAL MEAN differences, list all species that changed by 10% or more:<br />
|NO, ISOP, HNO3, H2O2, MVK, MACR, PMN, PRPE, C3H8, N2O5, SO2, SO4, SO4s, NH3, NH4, NIT, NITs, HBr, ISOPN, MOBA, HAC, GLYC, RIP, IEPOX, HNO2 <br />
|-<br />
|Comments on ZONAL MEAN differences:<br />
|<br />
*Differences in SO2, SO4, NH3, NH4, SO4s, H2O2, N2O5, NIT and NITs are due due to the same processes described for the surface. Differences tend to be higher in the southern hemisphere because there is more ocean surface than in the northern hemisphere.<br />
*Differences in NO, ISOP, MVK, MACR, PMN, PRPE, C3H8, ISOPN, MOBA, GLYC, RIP, IEPOX can be attributed to small number differences where concentrations are very low.<br />
*Differences in NH3, NH4, NIT, NITs can be attributed to [[ISORROPIA_II#Persistence of problem|numerical noise from ISORROPIA]].<br />
|-<br />
|In the EMISSION RATIO maps, list all species that changed by 10% or more:<br />
|None<br />
|-<br />
|Comments on EMISSION RATIO differences:<br />
|<br />
|-<br />
|Additional or summary comments:<br />
|<br />
|-bgcolor="#cccccc"<br />
!Approval<br />
!<br />
|-<br />
|Requires further investigation:<br />
|No<br />
|- <br />
|Approved by:<br />
|Becky Alexander<br />
|-<br />
|Date of approval:<br />
|13 Sep 2013<br />
|}<br />
--[[User:Melissa Payer|Melissa Sulprizio]] 16:47, 6 September 2013 (EDT)<br />
<br />
=== v9-02o ===<br />
<br />
Here is the assessment form for 1-month benchmark simulation '''v9-02o'''.<br />
<br />
{| border=1 cellspacing=0 cellpadding=5<br />
|-bgcolor="#cccccc"<br />
!width="325px"|Description<br />
! <br />
|- <br />
|New features added into GEOS-Chem:<br />
|<br />
*[[Secondary_organic_aerosols#SOA_simulation_with_semi-volatile_POA|SOA simulation with semi-volatile POA]]<br />
*[[Rn-Pb-Be_simulation#Non-local_PBL_mixing|Implement non-local PBL mixing in the Rn-Pb-Be simulation]]<br />
*[[TOMAS_aerosol_microphysics#Minor_bug_in_TOMAS_sulfate_emissions|Minor bug fix in TOMAS sulfate emissions]]<br />
*[[GEOS-Chem_v9-02#Bug_in_ND36_diagnostic_when_ship_emissions_are_turned_off|Bug fix in ND36 diagnostic when ship emissions are turned off]]<br />
*[[Debugging with the GEOS-Chem unit tester|Initial modifications for GEOS-Chem Unit Tester]]<br />
|- <br />
|Developer name(s) and institution(s):<br />
|<br />
*''SOA with semi-volatile POA:'' Havala Pye (EPA)<br />
*''Non-local PBL mixing in Rn-Pb-Be simulation:'' Jintai Lin (PKU); [[GEOS-Chem Support Team]]<br />
*''TOMAS bug fix:'' Sal Farina (CSU)<br />
*''ND36 bug fix:'' Yanko Davila (U. Colorado)<br />
*''Modifications for GC Unit Tester:'' [[GEOS-Chem Support Team]]<br />
|-<br />
|Version, resolution, met fields used:<br />
|v9-02, GEOS-5 (47L), 4x5<br />
|-<br />
|1-month benchmark finished on:<br />
|Wed Aug 28 22:40:20 EDT 2013<br />
|-<br />
|Performance statistics:<br />
|<br />
*Ran on 8 CPUs of bench@titan-09.as.harvard.edu (2.659 GHz x 8 CPU) <br />
*Wall time: 2:35<br />
*Scalability: 7.2649<br />
|-<br />
|Compared to previous benchmark:<br />
|[[#v9-02n|v9-02n]]<br />
|-<br />
|This update will impact:<br>(select all that apply with '''boldface''')<br />
|Advection, BL Mixing, Convection, Met Fields, Dry Dep, Wet Dep, Stratosphere, Anthro Emiss, Biogenic Emiss, Biomass Emiss, Photolysis, Chemistry, Other (please specify): '''We expect to see no changes from v9-02n'''<br />
|-<br />
|Plots may be viewed at:<br />
|<tt>ftp://ftp.as.harvard.edu/pub/exchange/mpayer/1mo_quick_look/v9-02o/</tt><br />
|-bgcolor="#cccccc"<br />
!Metrics<br />
! <br />
|-<br />
|Global mean OH (from log file):<br />
|13.7511714559642 x 10<sup>5</sup> molec/cm<sup>3</sup><br />
|-<br />
|Methyl chloroform lifetime:<br />
|4.5225 years<br />
|-<br />
|Did either of these change by more than 5%?<br />
|No. They are identical to the v9-02n values. <br />
|-<br />
|At the SURFACE, list all species that changed by 10% or more:<br />
|None<br />
|-<br />
|Comments on SURFACE differences:<br />
|<br />
|-<br />
|At 500 hPa, list all species that changed by 10% or more:<br />
|None<br />
|-<br />
|Comments on 500 hPa differences:<br />
|<br />
|-<br />
|In the ZONAL MEAN differences, list all species that changed by 10% or more:<br />
|None<br />
|-<br />
|Comments on ZONAL MEAN differences:<br />
|<br />
|-<br />
|In the EMISSION RATIO maps, list all species that changed by 10% or more:<br />
|None<br />
|-<br />
|Comments on EMISSION RATIO differences:<br />
|<br />
|-<br />
|Additional or summary comments:<br />
|<br />
#The v9-02o output is 100% identical to the [[GEOS-Chem_v9-02_benchmark_history#v9-02n|v9-02n]] output. This indicates that the full-chemistry simulation has not been impacted by the updates, bug fixes, and structural changes that we have made in this version.<br />
#Special 1-month benchmark simulations were performed for v9-02n using the [[Secondary organic aerosols#The SOA simulation prior to v9-02|traditional SOA simulation]] and for v9-02o using the [[Secondary organic aerosols#SOA simulation with semi-volatile POA|updated SOA simulation]]. For more information on these simulations, please see [[#v9-02o SOA|this wiki post]].<br />
|-bgcolor="#cccccc"<br />
!Approval<br />
!<br />
|-<br />
|Requires further investigation:<br />
|No<br />
|- <br />
|Approved by:<br />
|Jeff Pierce, Havala Pye<br />
|-<br />
|Date of approval:<br />
|03 Sep 2013<br />
|}<br />
--[[User:Melissa Payer|Melissa Sulprizio]] 16:36, 28 August 2013 (EDT)<br />
<br />
=== v9-02n ===<br />
<br />
Here is the assessment form for 1-month benchmark simulation '''v9-02n'''.<br />
<br />
{| border=1 cellspacing=0 cellpadding=5<br />
|-bgcolor="#cccccc"<br />
!width="325px"|Description<br />
! <br />
|- <br />
|New features added into GEOS-Chem:<br />
|<br />
*[[Aircraft_emissions#MIT_aviation_emissions_inventory|AEIC aircraft emissions inventory]]<br />
|- <br />
|Developer name(s) and institution(s):<br />
|<br />
*Sebastian Eastham (MIT)<br />
*Steven Barrett (MIT)<br />
|-<br />
|Version, resolution, met fields used:<br />
|v9-02, GEOS-5 (47L), 4x5<br />
|-<br />
|1-month benchmark finished on:<br />
|Mon Aug 5 14:53:17 EDT 2013<br />
|-<br />
|Performance statistics:<br />
|<br />
*Ran on 8 CPUs of bench@titan-08.as.harvard.edu (2.659 GHz x 8 CPU) <br />
*Wall time: 2:37<br />
*Scalability: 7.2908<br />
|-<br />
|Compared to previous benchmark:<br />
|[[#v9-02m|v9-02m]]<br />
|-<br />
|This update will impact:<br>(select all that apply with '''boldface''')<br />
|Advection, BL Mixing, Convection, Met Fields, Dry Dep, Wet Dep, Stratosphere, '''Anthro Emiss''', Biogenic Emiss, Biomass Emiss, Photolysis, Chemistry, Other (please specify):<br />
|-<br />
|Plots may be viewed at:<br />
|<tt>ftp://ftp.as.harvard.edu/pub/exchange/mpayer/1mo_quick_look/v9-02n/</tt><br />
|-bgcolor="#cccccc"<br />
!Metrics<br />
! <br />
|-<br />
|Global mean OH (from log file):<br />
|13.7511714559642 x 10<sup>5</sup> molec/cm<sup>3</sup><br />
|-<br />
|Methyl chloroform lifetime:<br />
|4.5225 years<br />
|-<br />
|Did either of these change by more than 5%?<br />
|No. The mean OH differs by 1.1%, and the MCF lifetimes differ by -0.73%. <br />
|-<br />
|At the SURFACE, list all species that changed by 10% or more:<br />
| NO, ISOP, MVK, MACR, PMN, NIT, Br, HBr, BrNO3, MPN, ISPON, MOBA, IEPOX, NO2, NO3, HNO2<br />
|-<br />
|Comments on SURFACE differences:<br />
|<br />
* Changes in Br and NOx species were isolated to a small band in the Antarctic<br />
* Perturbations to hydrocarbon species were mainly isolated to regions where the initial value was very low (e.g. remote ocean)<br />
* NIT delta highly isolated and likely a result of existing issues with aerosol formation<br />
|-<br />
|At 500 hPa, list all species that changed by 10% or more:<br />
| NO, ALK4, ISOP, HNO3, MVK, MACR, PMN, PRPE, N2O5, HNO4, DMS, NH3, NIT, ISOPN, MOBA, GLYC, MMN, RIP, IEPOX, HNO2<br />
|-<br />
|Comments on 500 hPa differences:<br />
|<br />
* Changes in NO isolated to Antarctic<br />
* Large-scale hydrocarbon perturbations, such as for PRPE, due to increase in overall HC loading as aircraft HC emissions are new to the model<br />
* Small-scale, "noisy" HC perturbations result from small absolute changes in regions with low initial values<br />
|-<br />
|In the ZONAL MEAN differences, list all species that changed by 10% or more:<br />
| NO, ISOP, HNO3, H2O2, MVK, MACR, PMN, PRPE, N2O5, HNO4, MP, DMS, SO2, SO4s, NH3, NIT, NITs, BrNO2, BrNO3, MPN, ISOPN, MOBA, HAC, GLYC, MMN, RIP, IEPOX, MAP, NO2, HNO2, OH, HO2<br />
|-<br />
|Comments on ZONAL MEAN differences:<br />
|<br />
* NO, NO2, BrNO2, BrNO3, HNO2, HNO3, HNO4 and N2O5 changes result from new aircraft NOx emissions and are small in absolute terms<br />
* Hydrocarbon changes are either "noisy", occurring in regions with low initial values (i.e. high altitude), or closely follow aircraft flight patterns due to addition of aircraft HC emissions<br />
* Small drop in H2O2, again at high altitude, largely due to increased aerosol activity<br />
* SO2 and DMS perturbations likely result from enhanced aircraft sulfur emission modeling<br />
* NIT and NH3 deltas are also high-altitude and "noisy", likely due to noisy aerosol formation<br />
* NITs and SO4s changes restricted to very high altitude, where small number changes lead to large ratios<br />
* OH and HO2 deltas small and restricted to very high altitude<br />
|-<br />
|In the EMISSION RATIO maps, list all species that changed by 10% or more:<br />
|SO2, NO<br />
|-<br />
|Comments on EMISSION RATIO differences:<br />
|<br />
* New aircraft SO2, NOx emissions at higher resolution than before<br />
* Other new aircraft emissions are not explicitly shown on the emission ratio maps<br />
|-<br />
|Additional or summary comments:<br />
|We are currently emitting NOx as NO, but gridded data for the NO/NO2/HNO2 split emissions are available for aircraft NOx. We should consider implementing the split emissions in a future version.<br />
|-bgcolor="#cccccc"<br />
!Approval<br />
!<br />
|-<br />
|Requires further investigation:<br />
|<br />
* Emission of high-altitude hydrocarbons may result in formation of a stratospheric HC reservoir (see PRPE)<br />
* Stratospheric NITs and SO4s difficult to explain, but are likely due to numerical noise<br />
|- <br />
|Approved by:<br />
|Sebastian Eastham<br />
|-<br />
|Date of approval:<br />
|12 Aug 2013<br />
|}<br />
--[[User:Melissa Payer|Melissa Sulprizio]] 09:36, 31 July 2013 (EDT)<br />
<br />
=== v9-02m ===<br />
<br />
Here is the assessment form for 1-month benchmark simulation '''v9-02m'''.<br />
<br />
{| border=1 cellspacing=0 cellpadding=5<br />
|-bgcolor="#cccccc"<br />
!width="325px"|Description<br />
! <br />
|- <br />
|New features added into GEOS-Chem:<br />
|<br />
*[[Historical_and_Future_Emissions#RCP_future_emission_scenarios |RCP emission scenarios]]<br />
*[[CH4_simulation#Update_CH4_emissions_to_EDGAR_v4.2|EDGAR v4.2 emissions for CH4 simulation]]<br />
*[[Scale factors for anthropogenic emissions|Update annual anthropogenic scale factors through 2010]]<br />
*[[Biomass_burning_emissions#Update_GFED3_emissions_to_2011|Update GFED3 emissions to 2011]]<br />
*[[Photolysis_mechanism#Overhead_TOMS.2FSBUV_merged_O3_columns|Update TOMS overhead O3 columns to 2010]]<br />
*[[GCAP#Fixed_bugs_caused_by_GIGC_edits|Corrected minor bugs for GCAP that were introduced by GIGC edits]]<br />
*[[Anthropogenic_emissions#Prevent_negative_emissions_over_Canada|Prevent negative emissions over Canada]]<br />
|- <br />
|Developer name(s) and institution(s):<br />
|<br />
*''RCP scenarios:'' Chris Holmes (UC Irvine)<br />
*''EDGARv4.2 for CH4 simulation:'' Kevin Wecht (Harvard)<br />
*''Annual scale factors update:'' Aaron van Donkelaar (Dalhousie)<br />
*''GFED3 update:'' Prasad Kasibhatla (Duke)<br />
*''TOMS O3 columns update:'' Jenny Fisher (U. Wollongong)<br />
*''GCAP fixes:'' [[GEOS-Chem Support Team]]<br />
*''Bug fix for Canadian emissions:'' Fabien Paulot (Harvard); Christoph Keller (Harvard)<br />
|-<br />
|Version, resolution, met fields used:<br />
|v9-02, GEOS-5 (47L), 4x5<br />
|-<br />
|1-month benchmark finished on:<br />
|Thu Jul 25 21:14:47 EDT 2013<br />
|-<br />
|Performance statistics:<br />
|<br />
*Ran on 8 CPUs of bench@titan-08.as.harvard.edu (2.659 GHz x 8 CPU) <br />
*Wall time: 2:34<br />
*Scalability: 7.3134<br />
|-<br />
|Compared to previous benchmark:<br />
|[[#v9-02l|v9-02l]]<br />
|-<br />
|This update will impact:<br>(select all that apply with '''boldface''')<br />
|Advection, BL Mixing, Convection, Met Fields, Dry Dep, Wet Dep, Stratosphere, '''Anthro Emiss''', Biogenic Emiss, Biomass Emiss, Photolysis, Chemistry, Other (please specify):<br />
|-<br />
|Plots may be viewed at:<br />
|<tt>ftp://ftp.as.harvard.edu/gcgrid/geos-chem/1mo_benchmarks/v9-02/v9-02m/</tt><br />
|-bgcolor="#cccccc"<br />
!Metrics<br />
! <br />
|-<br />
|Global mean OH (from log file):<br />
|13.6057246332902 x 10<sup>5</sup> molec/cm<sup>3</sup><br />
|-<br />
|Methyl chloroform lifetime:<br />
|4.5559 years<br />
|-<br />
|Did either of these change by more than 5%?<br />
|No. The mean OH differs by -0.047%, and the MCF lifetimes differ by 0.053%.<br />
|-<br />
|At the SURFACE, list all species that changed by 10% or more:<br />
|ISOP, MVK, MACR, PMN, NIT, ISOPN, MOBA, RIP, IEPOX<br />
|-<br />
|Comments on SURFACE differences:<br />
|<br />
*The species listed above show differences mainly over the oceans or Antarctica, where the large ratios can be attributed to small number differences where concentrations are very low.<br />
*Differences in NIT can be attributed to [[ISORROPIA_II#Persistence_of_problem|numerical noise from ISORROPIA]]. <br />
|-<br />
|At 500 hPa, list all species that changed by 10% or more:<br />
|ISOP, MVK, NH3, NIT, ISOPN, MOBA, RIP<br />
|-<br />
|Comments on 500 hPa differences:<br />
|<br />
*The species listed above show differences mainly over the oceans or Antarctica, where the large ratios can be attributed to small number differences where concentrations are very low.<br />
*Differences in NH3 and NIT can be attributed to [[ISORROPIA_II#Persistence_of_problem|numerical noise from ISORROPIA]]. <br />
|-<br />
|In the ZONAL MEAN differences, list all species that changed by 10% or more:<br />
|ALK4, ISOP, MVK, PMN, PRPE, C3H8, NH3, NIT, NITs, BCPO, OCPO, ISOPN, RIP<br />
|-<br />
|Comments on ZONAL MEAN differences:<br />
|<br />
*Differences in most of the species listed above can be attributed to small number differences where concentrations are very low.<br />
*Differences in NH3 and NIT can be attributed to [[ISORROPIA_II#Persistence_of_problem|numerical noise from ISORROPIA]]. <br />
|-<br />
|In the EMISSION RATIO maps, list all species that changed by 10% or more:<br />
|SO2, SO4<br />
|-<br />
|Comments on EMISSION RATIO differences:<br />
|<br />
*The [[Scale factors for anthropogenic emissions|update for annual anthropogenic scale factors]] is responsible for:<br />
**Differences in SO2 anthropogenic emissions over Alaska and SO2 ship emissions along the coasts of US and Canada.<br />
**Differences in SO4 anthropogenic emissions over the continental US and Alaska<br />
|-<br />
|Additional or summary comments:<br />
|<br />
|-bgcolor="#cccccc"<br />
!Approval<br />
!<br />
|-<br />
|Requires further investigation:<br />
|No<br />
|- <br />
|Approved:<br />
|Yes<br />
|-<br />
|Date of approval:<br />
|30 Jul 2013<br />
|}<br />
--[[User:Melissa Payer|Melissa Sulprizio]] 10:25, 24 July 2013 (EDT)<br />
<br />
=== v9-02l ===<br />
<br />
Here is the assessment form for 1-month benchmark simulation '''v9-02l'''.<br />
<br />
{| border=1 cellspacing=0 cellpadding=5<br />
|-bgcolor="#cccccc"<br />
!width="325px"|Description<br />
! <br />
|- <br />
|New features added into GEOS-Chem:<br />
|<br />
*[[EPA/NEI05 North American emissions#Updated NH3 seasonal scaling factors in v9-02|Updated NH3 seasonal scaling factors over the US]]<br />
*[[Anthropogenic_emissions#CAC|Updated Canadian NH3 inventory]]<br />
*[[Wet_deposition#Bug_in_Henry.27s_constant|Fix bug in wet deposition Henry's constant]]<br />
*[[Acetone#DRYACET_is_missing_from_globchem.dat|Add DRYACET to globchem.dat]]<br />
*[[GEOS-Chem v9-02#Bug fixes in biofuel_mod.F and emfossil.F|Fix diurnal NOx scale factors]]<br />
*[[GEOS-Chem v9-02#Bug fixes in biofuel_mod.F and emfossil.F|Fix double counting of biofuels over Mexico, Canada, and Europe]]<br />
*[[Biomass_burning_emissions#Bug_fix_for_3-hourly_GFED3_emissions|Bug fix for 3-hourly GFED3 emissions]]<br />
*[[Regridding_in_GEOS-Chem#Bug_in_grid_mod.F90|Bug fix in grid_mod.F90]]<br />
*[[Scale factors for anthropogenic emissions#Bug fix for anthropogenic scaling factors for years 2006 and later|Bug fix for anthropogenic scaling factors for years 2006 and later]]<br />
*[[Ship_emissions#Bugs_in_ship_emissions_and_non-local_PBL_mixing|Correct additional bugs in ship emissions w/ non-local PBL mixing]]<br />
*[[Ship emissions#Bug in ship CO emissions|Bug fix for ship CO emissions]]<br />
*[[Volcanic_SO2_emissions_from_Aerocom#Typo_in_VOLCPRESS_definition|Fix typo in VOLCPRESS definition]]<br />
*[[Passing array arguments efficiently in GEOS-Chem|Eliminate several more array temporaries]]<br />
*[[#Bug fixes in day-of-week computation|Bug fixes in day-of-week computation]]<br />
*[[#Bug fixes in diag48_mod.F|Bug fixes in diag48_mod.F]]<br />
*[[Aerosol-only_simulation#Emissions_not_included_when_using_non-local_PBL_mixing_scheme|Bug fix in emissions for offline aerosol simulation]]<br />
|- <br />
|Developer name(s) and institution(s):<br />
|<br />
*''NH3 seasonal scaling:'' Lin Zhang (Peking University)<br />
*''Updated CAC NH3:'' Wai-Ho Lo (Dalhousie)<br />
*''Wetdep fix:'' Fabien Paulot (Harvard)<br />
*''DRYACET fix:'' Emily Fischer (Harvard)<br />
*''Diurnal NOx scale factor fix:'' Christoph Keller (Harvard)<br />
*''Double counting of biofuels fix:'' Christoph Keller (Harvard)<br />
*''3-hr GFED3 fix:'' Christoph Keller (Harvard)<br />
*''Fix in grid_mod.F90:'' Christoph Keller (Harvard)<br />
*''Scale factor fix:'' Jenny Fisher (U. Wollongong)<br />
*''Ship emission fixes:'' Chris Holmes (UC Irvine)<br />
*''Ship CO fix:'' Chris Holmes (UC Irvine)<br />
*''VOLCPRESS fix:'' Thibaud Thonat (U. Edinburgh)<br />
*''Removal of array temporaries:'' [[GEOS-Chem Support Team]]<br />
*''Day-of-week fix:'' [[GEOS-Chem Support Team]]<br />
*''Fixes in diag48_mod.F:'' Jenny Fisher (U. Wollongong)<br />
*''Offline aerosol simulation fix:'' [[GEOS-Chem Support Team]]<br />
|-<br />
|Version, resolution, met fields used:<br />
|v9-02, GEOS-5 (47L), 4x5<br />
|-<br />
|1-month benchmark finished on:<br />
|Tue Jun 18 20:40:16 EDT 2013<br />
|-<br />
|Performance statistics:<br />
|<br />
*Ran on 8 CPUs of bench@titan-10.as.harvard.edu (2.659 GHz x 8 CPU) <br />
*Wall time: 2:35<br />
*Scalability: 7.3577<br />
|-<br />
|Compared to previous benchmark:<br />
|[[#v9-02k|v9-02k]]<br />
|-<br />
|This update will impact:<br>(select all that apply with '''boldface''')<br />
|Advection, BL Mixing, Convection, Met Fields, '''Dry Dep''', '''Wet Dep''', Stratosphere, '''Anthro Emiss''', Biogenic Emiss, Biomass Emiss, Photolysis, Chemistry, Other (please specify):<br />
|-<br />
|Plots may be viewed at:<br />
|<tt>ftp://ftp.as.harvard.edu/gcgrid/geos-chem/1mo_benchmarks/v9-02/v9-02l/</tt><br />
|-bgcolor="#cccccc"<br />
!Metrics<br />
! <br />
|-<br />
|Global mean OH (from log file):<br />
|13.6120550574916 x 10<sup>5</sup> molec/cm<sup>3</sup><br />
|-<br />
|Methyl chloroform lifetime:<br />
|4.5535 years<br />
|-<br />
|Did either of these change by more than 5%?<br />
|No. The mean OH differs by 1.74%, and the MCF lifetimes differ by -2.29%.<br />
|-<br />
|At the SURFACE, list all species that changed by 10% or more:<br />
|NO, O3, PAN, ALK4, ISOP, HNO3, H2O2, MEK, ALD2, RCHO, MVK, MACR, PMN, PPN, R4N2, PRPE, C3H8, CH2O, C2H6, N2O5, HNO4, MP, DMS, SO2, SO4, SO4s, MSA, NH3, NH4, NIT, NITs, Br2, Br, BrO, HOBr, HBr, BrNO2, BrNO3, ISOPN, MOBA, PROPNN, HAC, GLYC, MMN, RIP, IEPOX, MAP, NO2, NO3, HNO2, OH, HO2<br />
|-<br />
|Comments on SURFACE differences:<br />
|<br />
*Many biogenic species, as well as Bromine species, show differences over the oceans at the surface. This is most likely caused by the [[Ship_emissions#Bugs_in_ship_emissions_and_non-local_PBL_mixing|bug fix for PARANOX ship plume model when using non-local PBL mixing]].<br />
*There is a decrease in NH3 over Canada. This is due to the [[Anthropogenic_emissions#CAC|updated Canadian NH3 emissions inventory]].<br />
*Christoph Keller wrote: The small ozone changes over the eastern US and eastern China look as expected from [[GEOS-Chem v9-02#Bug fixes in biofuel mod.F and emfossil.F|the diurnal scaling factor fix]]. The changes are larger in the free troposphere, though, which doesn't show up in the benchmark plots.<br />
|-<br />
|At 500 hPa, list all species that changed by 10% or more:<br />
|NO, ISOP, HNO3, MVK, MACR, PMN, PRPE, N2O5, HNO4, MP, DMS, SO2, MSA, NH3, NH4, NIT, NITs, Br, HOBr, BrNO2, BrNO3, CH2Br2, CH3Br, MPN, ISOPN, MOBA, PROPNN, HAC, GLYC, MMN, RIP, IEPOX, NO2, NO3, HNO2, OH<br />
|-<br />
|Comments on 500 hPa differences:<br />
|<br />
*Some species only have a few grid boxes having significant differences at 500 hPa.<br />
|-<br />
|In the ZONAL MEAN differences, list all species that changed by 10% or more:<br />
|NO, O3, PAN, CO, ALK4, ISOP, HNO3, H2O2, ALD2, RCHO, PPN, R4N2, PRPE, C3H8, CH2O, C2H6, N2O5, HNO4, MP, DMS, SO2, SO4, SO4s, MSA, NH3, Br2, Br, BrO, HOBr, HBr, BrNO2, BrNO3, CHBr3, HAC, GLYC, MMN, RIP, IEPOX, MAP, NO2, NO3, HNO2, OH, HO2<br />
|-<br />
|Comments on ZONAL MEAN differences:<br />
|<br />
*The following species have percent differences larger than 10%, but very small absolute differences: NO, O3, PAN, ALK4, ISOP, ALD2, RCHO, MVK, MACR, PMN, R4N2, C3H8, CH2O, C2H6, N2O5, SO2, SO4, SO4s, MSA, NH3, NH4, NIT, NITs, Br2, Br, BrO, HOBr, HBr, BrNO2, BrNO3, CHBr3, MPN, MPN, ISOPN, PROPPNN, GLYC, IEPOX, NO2, NO3, HNO2, and OH.<br />
|-<br />
|In the EMISSION RATIO maps, list all species that changed by 10% or more:<br />
|<br />
#anthropogenic CO (along coastlines and over China)<br />
#anthropogenic NH3 (over Canada)<br />
#anthropogenic NO (mostly over oceans)<br />
#anthropogenic SO2 and SO4 (over China)<br />
#lightning NO (slight decrease over Russia)<br />
|-<br />
|Comments on EMISSION RATIO differences:<br />
|<br />
#The differences in anthropogenic CO over oceans are caused by the [[Ship emissions#Bug in ship CO emissions|bug fix for ship CO emissions]].<br />
#The differences in anthropogenic NH3 are caused by the [[Anthropogenic_emissions#CAC|updated Canadian NH3 emissions inventory]].<br />
#*Wai-Ho Lo wrote: In my old report, it shows lower emission for the new CAC NH3 emission for Canada in Alberta. The rest of the country barely has any NH3 emission to begin with so the ratio could be unreliable. The benchmark test ratios seems correct. <br />
#*The [[EPA/NEI05_North_American_emissions#Updated_NH3_seasonal_scaling_factors_in_v9-02|updates of the US NH3 emission seasonality]] mostly increase NH3 emissions in spring; the change in July (the benchmark month) is minor (<1%). In the previous code, the seasonal scaling factors are further scaled to the August value: SCALE(ThisMonth)/SCALE(August). Now we do not scale it for NH3.<br />
#The differences in anthropogenic NO over oceans are caused by the fix for [[Ship_emissions#Bugs_in_ship_emissions_and_non-local_PBL_mixing|bug fix for PARANOX ship plume model when using non-local PBL mixing]]. <br />
#*The NO emissions ratio over oceans should be 3.3, but the colorbar saturates at 2.0. <br />
#*There are small, but non-zero ship emissions almost everywhere over the ice-free oceans. <br />
#*The ICOADS-AMVER inventory uses real ship positions reported via GPS transponders.<br />
#The decrease in CO, SO2, and SO4 emissions over China can be attributed to the [[Scale factors for anthropogenic emissions#Bug fix for anthropogenic scaling factors for years 2006 and later|bug fix for anthropogenic scaling factors for years 2006 and later]]. The base year for Streets emissions in the simulation is 2006, so these emissions are affected by the fix for annual scaling factors.<br />
#About the decrease in lightning NO over Russia, Chris Holmes writes:<br />
#*A small portion (1-3%) of lightning and aircraft NOx emissions would occur in the stratosphere, but this is not allowed in routine <tt>setemis.F</tt>. Now, these stratospheric emissions are also excluded from the ND32 diagnostics (NOx sources).<br />
|-<br />
|Additional or summary comments:<br />
|<br />
#[[GEOS-Chem_v9-02_benchmark_history#Bug_fixes_in_day-of-week_computation|The computation of the day of week w/r/t local time]] and the [[GEOS-Chem_v9-02#Bug_fixes_in_biofuel_mod.F_and_emfossil.F|computation of diurnal NOx scale factors w/r/t local time]] may change the emissions totals slightly, but not to the 10% level. The base emissions remain the same, but the time of day used to scale emissions will now differ from Greenwich Mean Time (GMT). <br />
#*For example, the EPA/NEI US emissions specify "weekday" or "weekend" emissions. In versions prior to v9-02l, the day of week was computed w/r/t GMT instead of local times. Since the local time in the USA lags 5-8 hours behind GMT, this means that we were transitioning from "weekday" to "weekend" 5-8 hours sooner than we should have been. This is now corrected.<br />
#The fixes to remove array temporaries do not change any scientific results.<br />
#Rigorous tests were performed to ensure that we obtained identical results when OpenMP parallelization was turned on and off. This indicates that we did not introduce any parallelization errors while adding these updates to GEOS-Chem.<br />
<br />
|-bgcolor="#cccccc"<br />
!Approval<br />
!<br />
|-<br />
|Requires further investigation:<br />
|No<br />
|- <br />
|Approved by:<br />
|Jintai Lin, Chris Holmes, Lin Zhang, Jenny Fischer, Christoph Keller, Wai-Ho Lo<br />
|-<br />
|Date of approval:<br />
|26 Jun 2013<br />
|}<br />
--[[User:Melissa Payer|Melissa Payer]] 16:48, 26 June 2013 (EDT)<br />
<br />
=== v9-02k ===<br />
<br />
Here is the assessment form for 1-month benchmark simulation '''v9-02k'''.<br />
<br />
{| border=1 cellspacing=0 cellpadding=5<br />
|-bgcolor="#cccccc"<br />
!width="325px"|Description<br />
! <br />
|- <br />
|New features added into GEOS-Chem:<br />
|<br />
*[[TOMAS aerosol microphysics#Update April 2013|Inline the latest source code modifications updates for the TOMAS microphysics package into GEOS-Chem]]<br />
*[[Grid-independent_GEOS-Chem#Merging_GIGC_code_into_the_standard_GEOS-Chem|Additional modifications to enable GEOS-Chem to run within the GEOS-5 GCM]]<br />
*[[Mercury#GAMAP_can.27t_read_v9-01-03_output_for_Hg|Streamlining of the code in GeosCore/mercury_mod.F]]<br />
*[[Passing array arguments efficiently in GEOS-Chem|Rewriting inefficient subroutine calls to avoid wasting memory and CPU cycles]]<br />
|- <br />
|Developer name(s) and institution(s):<br />
|<br />
*''TOMAS updates:'' Sal Farina (CSU)<br />
*''Grid-independent updates:'' [[GEOS-Chem Support Team]]<br />
*''Hg updates:'' Chris Holmes (UC Irvine)<br />
*''Rewriting inefficient subroutine calls'': [[GEOS-Chem Support Team]]<br />
|-<br />
|Version, resolution, met fields used:<br />
|v9-02, GEOS-5 (47L), 4x5<br />
|-<br />
|1-month benchmark finished on:<br />
|Thu Jun 6 14:38:12 EDT 2013<br />
|-<br />
|Performance statistics:<br />
|<br />
*Ran on 8 CPUs of bench@titan-11.as.harvard.edu (2.659 GHz x 8 CPU) <br />
*Wall time: 2:30<br />
**NOTE: 1/2 hour faster than v9-02j<br />
*Scalability: 7.4285<br />
**NOTE: Scales much better than v9-02j (6.2)<br />
|-<br />
|Compared to previous benchmark:<br />
|[[#v9-02j|v9-02j]]<br />
|-<br />
|This update will impact:<br>(select all that apply with '''boldface''')<br />
|Advection, BL Mixing, Convection, Met Fields, Dry Dep, Wet Dep, Stratosphere, Anthro Emiss, Biogenic Emiss, Biomass Emiss, Photolysis, Chemistry, Other (please specify): '''We expect to see no changes from v9-02j'''<br />
|-<br />
|Plots may be viewed at:<br />
|<tt>ftp://ftp.as.harvard.edu/gcgrid/geos-chem/1mo_benchmarks/v9-02/v9-02k/</tt><br />
|-bgcolor="#cccccc"<br />
!Metrics<br />
! <br />
|-<br />
|Global mean OH (from log file):<br />
|13.3796050179548 x 10<sup>5</sup> molec/cm<sup>3</sup><br />
|-<br />
|Methyl chloroform lifetime:<br />
|4.6600 years<br />
|-<br />
|Did either of these change by more than 5%?<br />
|No. They are identical to the v9-02j values.<br />
|-<br />
|At the SURFACE, list all species that changed by 10% or more:<br />
|None<br />
|-<br />
|Comments on SURFACE differences:<br />
|<br />
|-<br />
|At 500 hPa, list all species that changed by 10% or more:<br />
|None<br />
|-<br />
|Comments on 500 hPa differences:<br />
|<br />
|-<br />
|In the ZONAL MEAN differences, list all species that changed by 10% or more:<br />
|None<br />
|-<br />
|Comments on ZONAL MEAN differences:<br />
|<br />
|-<br />
|In the EMISSION RATIO maps, list all species that changed by 10% or more:<br />
|None<br />
|-<br />
|Comments on EMISSION RATIO differences:<br />
|<br />
|-<br />
|Additional or summary comments:<br />
|<br />
#The v9-02k output file (aka <tt>ctm.bpch.v9-02k</tt>) is 100% binary identical to the [[#v9-02j|v9-02j]] output file (<tt>ctm.bpch.v9-02j</tt>). This indicates that the full-chemistry simulation in v9-02k has not been impacted by the structural changes that we have made.<br />
#In v9-02k, we have segregated all of the places where GEOS-Chem interacts with TOMAS. If TOMAS is used, then these sections of code are activated; otherwise they are ignored. TOMAS was not turned on during the v9-02k 1-month benchmark simulation. Sal Farina will continue to develop and validate the TOMAS simulation in GEOS-Chem.<br />
#A separate Hg benchmark simulation (1-year) is being performed by Team Hg. Results are forthcoming. Because we have obtained identical results in the 1-month full-chemistry benchmarks for v9-02k and [[#v9-02j|v9-02j]], we recommend that v9-02k be approved immediately.. This will allow the SEAC4RS Team to adopt v9-02k as their base code. We feel that further fixes to the Hg simulation can be added into the next benchmark (v9-02l) if necessary.<br />
#'''''IMPORTANT NOTE:''''' v9-02k scales much better than previous versions. We have shaved 1/2 hour per model month off of the wall clock time at 4&deg; x 5&deg; resolution. This translates to a speedup of 6 hours per model year at 4&deg; x 5&deg;. We attribute this speedup to our [[Passing_array_arguments_efficiently_in_GEOS-Chem|rewriting of inefficient subroutine calls]]. We also anticipate that GEOS-Chem will scale better at 2&deg; x 2.5&deg; global resolution, as well as for all nested grids (0.5&deg; x 0.666&deg; and 0.25&deg; x 0.3125&deg;).<br />
<br />
|-bgcolor="#cccccc"<br />
!Approval<br />
!<br />
|-<br />
|Requires further investigation:<br />
|<br />
*''Full-chemistry simulation'': NO<br />
*''Hg simulation'': We shall ask "Team Hg" to review the 1-year Hg benchmark when it is completed.<br />
|- <br />
|Approved by:<br />
|Bob Y.<br />
|-<br />
|Date of approval:<br />
|07 Jun 2013<br />
|}<br />
<br />
--[[User:Bmy|Bob Y.]] 10:58, 7 June 2013 (EDT)<br />
<br />
=== v9-02j ===<br />
<br />
Here is the assessment form for 1-month benchmark simulation '''v9-02j'''.<br />
<br />
{| border=1 cellspacing=0 cellpadding=5<br />
|-bgcolor="#cccccc"<br />
!width="325px"|Description<br />
! <br />
|- <br />
|New features added into GEOS-Chem:<br />
|<br />
*[[NOx-Ox-HC-aerosol#Improved_HO2_uptake|Improved HO2 uptake by aerosol]]<br />
|- <br />
|Developer name(s) and institution(s):<br />
|<br />
*Jingqiu Mao (NOAA/GFDL)<br />
|-<br />
|Version, resolution, met fields used:<br />
|v9-02, GEOS-5 (47L), 4x5<br />
|-<br />
|1-month benchmark finished on:<br />
|Fri May 24 10:41:55 EDT 2013<br />
|-<br />
|Performance statistics:<br />
|<br />
*Ran on 8 CPUs of bench@titan-11.as.harvard.edu (2.659 GHz x 8 CPU) <br />
*Wall time: 3:05<br />
*Scalability: 6.2866<br />
|-<br />
|Compared to previous benchmark:<br />
|[[#v9-02i|v9-02i]]<br />
|-<br />
|This update will impact:<br>(select all that apply with '''boldface''')<br />
|Advection, BL Mixing, Convection, Met Fields, Dry Dep, Wet Dep, Stratosphere, Anthro Emiss, Biogenic Emiss, Biomass Emiss, Photolysis, '''Chemistry''', Other (please specify):<br />
|-<br />
|Plots may be viewed at:<br />
|<tt>ftp://ftp.as.harvard.edu/gcgrid/geos-chem/1mo_benchmarks/v9-02/v9-02j/</tt><br />
|-bgcolor="#cccccc"<br />
!Metrics<br />
! <br />
|-<br />
|Global mean OH (from log file):<br />
|13.3796050179548 x 10<sup>5</sup> molec/cm<sup>3</sup><br />
|-<br />
|Methyl chloroform lifetime:<br />
|4.6600 years<br />
|-<br />
|Did either of these change by more than 5%?<br />
|No. The mean OH differs by -1.22%, and the MCF lifetimes differ by 2.19%. <br />
|-<br />
|At the SURFACE, list all species that changed by 10% or more:<br />
|NO, O3, PAN, ALK4, ISOP, HNO3, H2O2, MEK, ALD2, RCHO, MVK, MACR, PMN, PPN, R4N2, PRPE, C3H8, CH2O, C2H6, N2O5, HNO4, MP, DMS, SO2, SO4, SO4s, NH3, NH4, NIT, Br2, Br, BrO, HOBr, HBr, BrNO2, BrNO3, MPN, ISOPN, MOBA, PROPNN, HAC, GLYC, MMN, RIP, IEPOX, MAP, NO2, NO3, HNO2, OH, HO2<br />
|-<br />
|Comments on SURFACE differences:<br />
|mostly driven by the change in OH.<br />
|-<br />
|At 500 hPa, list all species that changed by 10% or more:<br />
|NO, ALK4, ISOP, H2O2, ALD2, RCHO, MVK, MACR, PMN, PPN, R4N2, PRPE, C3H8, N2O5, HNO4, DMS, SO2, SO4s, NH3, NIT, Br2, Br, BrO, BrNO3, ISOPN, MOBA, PROPNN, HAC, GLYC, MMN, RIP, IEPOX, MAP, NO2, NO3, HNO2, OH, HO2<br />
|-<br />
|Comments on 500 hPa differences:<br />
|mostly driven by the change in OH.<br />
|-<br />
|In the ZONAL MEAN differences, list all species that changed by 10% or more:<br />
|NO, PAN, ALK4, ISOP, H2O2, MEK, ALD2, RCHO, MVK, MACR, PMN, PPN, R4N2, PRPE, C3H8, CH2O, N2O5, HNO4, MP, DMS, SO2, SO4, SO4s, NH3, NIT, NITs, Br2, Br, BrO, HOBr, HBr, BrNO2, BrNO3, MPN, ISOPN, MOBA, PROPNN, HAC, GLYC, MMN, RIP, IEPOX, MAP, NO2, NO3, HNO2, OH, HO2<br />
|-<br />
|Comments on ZONAL MEAN differences:<br />
|mostly driven by the change in OH.<br />
|-<br />
|In the EMISSION RATIO maps, list all species that changed by 10% or more:<br />
|N/A<br />
|-<br />
|Comments on EMISSION RATIO differences:<br />
|N/A<br />
|-<br />
|Additional or summary comments:<br />
|We recommend gamma_HO2 = 0.2 (producing H2O) for the standard model, although gamma_HO2 could be potentially high than 0.2.<br />
|-bgcolor="#cccccc"<br />
!Approval<br />
!<br />
|-<br />
|Requires further investigation:<br />
|No<br />
|- <br />
|Approved by:<br />
|Jingqiu Mao<br />
|-<br />
|Date of approval:<br />
|05/28/2013<br />
|}<br />
<br />
--[[User:Melissa Payer|Melissa Payer]] 17:09, 20 May 2013 (EDT)<br />
<br />
=== v9-02i ===<br />
<br />
Here is the assessment form for 1-month benchmark simulation '''v9-02i'''.<br />
<br />
{| border=1 cellspacing=0 cellpadding=5<br />
|-bgcolor="#cccccc"<br />
!width="325px"|Description<br />
! <br />
|- <br />
|New features added into GEOS-Chem:<br />
|<br />
*[[ChemTelecon20111202|Inhibition of N2O5 uptake by nitrate aerosol]]<br />
|- <br />
|Developer name(s) and institution(s):<br />
|<br />
*Lin Zhang (Peking University)<br />
|-<br />
|Version, resolution, met fields used:<br />
|v9-02, GEOS-5 (47L), 4x5<br />
|-<br />
|1-month benchmark finished on:<br />
|Fri May 17 10:16:11 EDT 2013<br />
|-<br />
|Performance statistics:<br />
|<br />
*Ran on 8 CPUs of bench@titan-11.as.harvard.edu (2.659 GHz x 8 CPU) <br />
*Wall time: 3:06<br />
*Scalability: 6.2832<br />
|-<br />
|Compared to previous benchmark:<br />
|[[#v9-02h|v9-02h]]<br />
|-<br />
|This update will impact:<br>(select all that apply with '''boldface''')<br />
|Advection, BL Mixing, Convection, Met Fields, Dry Dep, Wet Dep, Stratosphere, Anthro Emiss, Biogenic Emiss, Biomass Emiss, Photolysis, '''Chemistry''', Other (please specify):<br />
|-<br />
|Plots may be viewed at:<br />
|<tt>ftp://ftp.as.harvard.edu/gcgrid/geos-chem/1mo_benchmarks/v9-02/v9-02i/</tt><br />
|-bgcolor="#cccccc"<br />
!Metrics<br />
! <br />
|-<br />
|Global mean OH (from log file):<br />
|13.5441691420451 x 10<sup>5</sup> molec/cm<sup>3</sup><br />
|-<br />
|Methyl chloroform lifetime:<br />
|4.5603 years<br />
|-<br />
|Did either of these change by more than 5%?<br />
|No. The mean OH differs by 0.23%, and the MCF lifetimes differ by -0.23%. <br />
|-<br />
|At the SURFACE, list all species that changed by 10% or more:<br />
|<br />
|-<br />
|Comments on SURFACE differences:<br />
|<br />
|-<br />
|At 500 hPa, list all species that changed by 10% or more:<br />
|<br />
|-<br />
|Comments on 500 hPa differences:<br />
|<br />
|-<br />
|In the ZONAL MEAN differences, list all species that changed by 10% or more:<br />
|<br />
|-<br />
|Comments on ZONAL MEAN differences:<br />
|<br />
|<br />
|-<br />
|In the EMISSION RATIO maps, list all species that changed by 10% or more:<br />
|<br />
|-<br />
|Comments on EMISSION RATIO differences:<br />
|<br />
|-<br />
|Additional or summary comments:<br />
|<br />
|-bgcolor="#cccccc"<br />
!Approval<br />
!<br />
|-<br />
|Requires further investigation:<br />
|No<br />
|- <br />
|Approved by:<br />
|Lin Zhang, Mat Evans<br />
|-<br />
|Date of approval:<br />
|17 May 2013<br />
|}<br />
<br />
--[[User:Melissa Payer|Melissa Payer]] 10:52, 16 May 2013 (EDT)<br />
<br />
=== v9-02h ===<br />
<br />
Here is the assessment form for 1-month benchmark simulation '''v9-02h'''.<br />
<br />
{| border=1 cellspacing=0 cellpadding=5<br />
|-bgcolor="#cccccc"<br />
!width="325px"|Description<br />
! <br />
|- <br />
|New features added into GEOS-Chem:<br />
|<br />
*[[NOx-Ox-HC-aerosol#Removal of NOx and Ox partitioning|Removal of NOx-Ox partitioning]]<br />
|- <br />
|Developer name(s) and institution(s):<br />
|<br />
*[[GEOS-Chem Support Team]]<br />
|-<br />
|Version, resolution, met fields used:<br />
|v9-02, GEOS-5 (47L), 4x5<br />
|-<br />
|1-month benchmark finished on:<br />
|Fri May 10 12:35:12 EDT 2013<br />
|-<br />
|Performance statistics:<br />
|<br />
*Ran on 8 CPUs of bench@titan-09.as.harvard.edu (2.659 GHz x 8 CPU)<br />
*Wall time: 3:04<br />
*Scalability: 6.2645<br />
|-<br />
|Compared to previous benchmark:<br />
|[[#v9-02g|v9-02g]]<br />
|-<br />
|This update will impact:<br>(select all that apply with '''boldface''')<br />
|Advection, BL Mixing, Convection, Met Fields, Dry Dep, Wet Dep, Stratosphere, Anthro Emiss, Biogenic Emiss, Biomass Emiss, Photolysis, '''Chemistry''', Other (please specify):<br />
|-<br />
|Plots may be viewed at:<br />
|<tt>ftp://ftp.as.harvard.edu/gcgrid/geos-chem/1mo_benchmarks/v9-02/v9-02h/</tt><br />
|-bgcolor="#cccccc"<br />
!Metrics<br />
! <br />
|-<br />
|Global mean OH (from log file):<br />
|13.5130950197591 x 10<sup>5</sup> molec/cm<sup>3</sup><br />
|-<br />
|Methyl chloroform lifetime:<br />
|4.5706 years<br />
|-<br />
|Did either of these change by more than 5%?<br />
|No. The mean OH differs by 0.52%, and the MCF lifetimes differ by -0.93%. <br />
|-<br />
|At the SURFACE, list all species that changed by 10% or more:<br />
|NO/NOx, O3/Ox, ISOP, HNO3, MVK, MACR, PMN, PPN, PRPE, N2O5, HNO4, DMS, NH4, NIT, Br2, Br, BrO, HOBr, HBr, BrNO2, BrNO3, MPN, ISOPN, MOBA, HAC, GLYC, MMN, RIP, IEPOX, OH, HO2<br />
|-<br />
|Comments on SURFACE differences:<br />
|The removal of NOx-Ox partitioning has resulted in less NO with respect to NOx. O3 remains unchanged with respect to Ox, except for in the Antarctic, where O3 is larger than Ox by 3 ppb or less. This change is primarily due to the restart file. A restart file was spun up for the 5 new tracers and combined with the existing benchmark restart file, resulting in slightly different initial conditions for O3 with respect to Ox. The introduction of the new tracers has also caused slight differences in N2O5 over source regions.<br />
<br />
Differences in NH4 and NIT can be attributed to [[ISORROPIA_II#Persistence_of_problem|numerical noise from ISORROPIA]].<br />
<br />
Differences in the remaining species primarily occur over the oceans or over Antarctica and can be attributed to small number differences where concentrations are very low.<br />
|-<br />
|At 500 hPa, list all species that changed by 10% or more:<br />
|NO/NOx, ISOP, MVK, MACR, PMN, PRPE, N2O5, DMS, NH3, NIT, Br, BrO, BrNO3, MPN, ISOPN, MOBA, HAC, GLYC, MMN, RIP, IEPOX, OH, HO2<br />
|-<br />
|Comments on 500 hPa differences:<br />
|The removal of NOx-Ox partitioning has resulted in less NO with respect to NOx.<br />
<br />
Differences in NH3 and NIT can be attributed to [[ISORROPIA_II#Persistence_of_problem|numerical noise from ISORROPIA]].<br />
<br />
Differences in the remaining species primarily occur over the oceans or over Antarctica and can be attributed to small number differences where concentrations are very low.<br />
|-<br />
|In the ZONAL MEAN differences, list all species that changed by 10% or more:<br />
|NO/NOx, O3/Ox, ALK4, ISOP, HNO3, H2O2, MVK, MACR, PMN, PRPE, C3H8, N2O5, HNO4, MP, DMS, SO4s, NH3, NIT, NITs, Br, BrO, HBr, BrNO2, BrNO3, MPN, ISOPN, MOBA, HAC, GLYC, MMN, RIP, IEPOX, MAP, OH, HO2<br />
|-<br />
|Comments on ZONAL MEAN differences:<br />
|Differences in NO/NOx and O3/Ox can be attributed to the removal of NOx-Ox partitioning. <br />
<br />
Differences in NH3 and NIT can be attributed to [[ISORROPIA_II#Persistence_of_problem|numerical noise from ISORROPIA]].<br />
<br />
Differences in the remaining species primarily occur above 200 hPa or near the poles, where concentrations are low and small changes produce large % difference.<br />
|<br />
|-<br />
|In the EMISSION RATIO maps, list all species that changed by 10% or more:<br />
|None<br />
|-<br />
|Comments on EMISSION RATIO differences:<br />
|N/A<br />
|-<br />
|Additional or summary comments:<br />
|Please note that family tracers NOx and Ox have been removed in this version and replaced with tracers NO, O3, NO2, NO3, and HNO2. Therefore, the first two panels on several of the benchmark plots (i.e. differences, ratios, zonal differences) compare NO and O3 from the current version with NOx and Ox from the previous version ([[GEOS-Chem v9-02 benchmark history#v9-02g|v9-02g]]). For concentration maps of the five new tracers, see http://ftp.as.harvard.edu/pub/exchange/mpayer/1mo_quick_look/v9-02h/v9-02h.concentrations.pdf (NO and O3 are on page 1; NO2, NO3, and HNO2 are on page 22).<br />
|-bgcolor="#cccccc"<br />
!Approval<br />
!<br />
|-<br />
|Requires further investigation:<br />
|No<br />
|- <br />
|Approved by:<br />
|Melissa Payer, Jingqiu Mao<br />
|-<br />
|Date of approval:<br />
|15 May 2013<br />
|}<br />
--[[User:Melissa Payer|Melissa Payer]] 16:26, 16 April 2013 (EDT)<br />
<br />
=== v9-02g ===<br />
<br />
Here is the assessment form for 1-month benchmark simulation '''v9-02g'''.<br />
<br />
{| border=1 cellspacing=0 cellpadding=5<br />
|-bgcolor="#cccccc"<br />
!width="325px"|Description<br />
! <br />
|- <br />
|New features added into GEOS-Chem:<br />
|<br />
*[[New_isoprene_scheme|Adopt Paulot isoprene scheme as standard]]<br />
*[[New_isoprene_scheme#Update_One_-_RO2.2BHO2_Reaction_Rate|Fix RO2+HO2 rate constant]]<br />
*[[GEOS-5.7.2 implementation details#Bug fix for declaration of GEOS-5.7.2 PFICU.2C PFLCU.2C PFILSAN.2C PFLLSAN fields|Bug fix for declaration of GEOS-5.7.2 PFICU, PFLCU, PFILSAN, PFLLSAN fields]]<br />
*[[David_Streets_regional_emissions_for_China_and_SE_Asia#Bug_in_EMIS_STREETS_ANTHRO_05x0666|Bug in EMIS_STREETS_ANTHRO_05x0666]]<br />
|- <br />
|Developer name(s) and institution(s):<br />
|<br />
*''Isoprene scheme:'' Fabien Paulot (Harvard), Eloise Marais (Harvard), Jingqiu Mao (NOAA/GFDL), Mat Evans (York)<br />
*''RO2+HO2 rate:'' Fabien Paulot (Harvard)<br />
*''GEOS-5.7.2 fix::'' [[GEOS-Chem Support Team]]<br />
*''Streets fix:'' Jenny Fisher (U. Wollongong)<br />
|-<br />
|Version, resolution, met fields used:<br />
|v9-02, GEOS-5 (47L), 4x5<br />
|-<br />
|1-month benchmark finished on:<br />
|Wed Mar 20 20:11:47 EDT 2013<br />
|-<br />
|Performance statistics:<br />
|<br />
*Ran on 8 CPUs of bench@titan-08.as.harvard.edu (2.659 GHz x 8 CPU) <br />
*Wall time: 2:58<br />
*Scalability: 6.3565<br />
|-<br />
|Compared to previous benchmark:<br />
|[[#v9-02f|v9-02f]]<br />
|-<br />
|This update will impact:<br>(select all that apply with '''boldface''')<br />
|Advection, BL Mixing, Convection, Met Fields, Dry Dep, Wet Dep, Stratosphere, Anthro Emiss, Biogenic Emiss, Biomass Emiss, Photolysis, '''Chemistry''', Other (please specify):<br />
|-<br />
|Plots may be viewed at:<br />
|<tt>ftp://ftp.as.harvard.edu/gcgrid/geos-chem/1mo_benchmarks/v9-02/v9-02g/</tt><br />
|-bgcolor="#cccccc"<br />
!Metrics<br />
! <br />
|-<br />
|Global mean OH (from log file):<br />
|13.4422368196455 x 10<sup>5</sup> molec/cm<sup>3</sup><br />
|-<br />
|Methyl chloroform lifetime:<br />
|4.6134 years<br />
|-<br />
|Did either of these change by more than 5%?<br />
|No. The mean OH differs by 3.73%, and the MCF lifetimes differ by -4.67%.<br />
|-<br />
|At the SURFACE, list all species that changed by 10% or more:<br />
|NOx, Ox, PAN, ALK4, ISOP, HNO3, H2O2, MEK, ALD2, RCHO, MVK, MACR, PMN, PPN, R4N2, PRPE, C3H8, N2O5, HNO4, MP, DMS, MSA, Br2, Br, BrO, HOBr, HBr, BrNO2, BrNO3, MPN, OH<br />
|-<br />
|Comments on SURFACE differences:<br />
|Differences in NOx and Ox are mainly due to the treatment of isoprene nitrates. Higher NOx leads to higher OH in northern mid-latitude. Higher OH in tropics is due to isomerization of RIO2. The changes in other species are mainly due to the changes in OH and NOx.<br />
|-<br />
|At 500 hPa, list all species that changed by 10% or more:<br />
|NOx, PAN, ALK4, ISOP, HNO3, H2O2, MEK, ALD2, RCHO, MVK, MACR, PMN, PPN, R4N2, PRPE, C3H8, N2O5, HNO4, MP, DMS, Br2, Br, BrO, HOBr, HBr, BrNO2, BrNO3, MPN, OH<br />
|-<br />
|Comments on 500 hPa differences:<br />
|Same as surface plots.<br />
|-<br />
|In the ZONAL MEAN differences, list all species that changed by 10% or more:<br />
|NOx, Ox, PAN, ALK4, ISOP, HNO3, H2O2, MEK, ALD2, RCHO, MVK, MACR, PMN, PPN, R4N2, PRPE, C3H8, N2O5, HNO4, MP, DMS, MSA, Br2, Br, BrO, HOBr, HBr, BrNO2, BrNO3, MPN, OH<br />
|-<br />
|Comments on ZONAL MEAN differences:<br />
|Same as surface plots.<br />
|-<br />
|In the EMISSION RATIO maps, list all species that changed by 10% or more:<br />
|No<br />
|-<br />
|Comments on EMISSION RATIO differences:<br />
|N/A<br />
|-<br />
|Additional or summary comments:<br />
|I also increase gamma(NO3) to 0.1, according to recent literature.<br />
|-bgcolor="#cccccc"<br />
!Approval<br />
!<br />
|-<br />
|Requires further investigation:<br />
|TBD<br />
|- <br />
|Approved:<br />
|Jingqiu Mao <br />
|-<br />
|Date of approval:<br />
|03/22/2013<br />
|}<br />
--[[User:Melissa Payer|Melissa Payer]] 12:17, 21 March 2013 (EDT)<br />
<br />
=== v9-02f ===<br />
<br />
Here is the assessment form for 1-month benchmark simulation '''v9-02f'''.<br />
<br />
{| border=1 cellspacing=0 cellpadding=5<br />
|-bgcolor="#cccccc"<br />
!width="325px"|Description<br />
! <br />
|- <br />
|New features added into GEOS-Chem:<br />
|<br />
*[[Updating_standard_chemistry_with_JPL_10-6|Inorganic chemistry updates]]<br />
*[[Methyl peroxy nitrate chemistry|Methyl peroxy nitrate (MPN) chemistry]]<br />
*[[Mercury#Bug_fixes_for_nested_Hg_simulation|Bug fixes for nested Hg simulation]]<br />
|- <br />
|Developer name(s) and institution(s):<br />
|<br />
*''Inorganic chemistry updates:'' Mat Evans (York)<br />
*''MPN chemistry:'' Ellie Browne (UC Berkeley)<br />
*''Nested Hg bug fixes:'' Yanxu Zhang (U. Washington)<br />
|-<br />
|Version, resolution, met fields used:<br />
|v9-02, GEOS-5 (47L), 4x5<br />
|-<br />
|1-month benchmark finished on:<br />
|Wed Jan 30 16:36:48 EST 2013<br />
|-<br />
|Performance statistics:<br />
|<br />
*Ran on 8 CPUs of bench@titan-10.as.harvard.edu (2.659 GHz x 8 CPU) <br />
*Wall time: 2:32<br />
*Scalability: 6.3256<br />
|-<br />
|Compared to previous benchmark:<br />
|[[#v9-02e|v9-02e]]<br />
|-<br />
|This update will impact:<br>(select all that apply with '''boldface''')<br />
|Advection, BL Mixing, Convection, Met Fields, Dry Dep, Wet Dep, Stratosphere, Anthro Emiss, Biogenic Emiss, Biomass Emiss, Photolysis, '''Chemistry''', Other (please specify):<br />
|-<br />
|Plots may be viewed at:<br />
|<tt>ftp://ftp.as.harvard.edu/gcgrid/geos-chem/1mo_benchmarks/v9-02/v9-02f/</tt><br />
|-bgcolor="#cccccc"<br />
!Metrics<br />
! <br />
|-<br />
|Global mean OH (from log file):<br />
|12.9589397348900 x 10<sup>5</sup> molec/cm<sup>3</sup><br />
|-<br />
|Methyl chloroform lifetime:<br />
|4.8396 years<br />
|-<br />
|Did either of these change by more than 5%?<br />
|No<br />
|-<br />
|At the SURFACE, list all species that changed by 10% or more:<br />
|ISOP, MVK, MACR, PMN <br />
<br />
N2O5<br />
<br />
HNO4<br />
<br />
DMS, MSA<br />
<br />
Br, BrO, Other bromine compounds<br />
|-<br />
|Comments on SURFACE differences:<br />
|Isoprene related tracers: Concentrations are changing over remote oceanic regions reflecting changes in the initial oxidation steps of these compounds. <br />
N2O5 changes are again is restricted to remote ocean regions. Changes to the NO3+DMS rate constant have made this faster which will tend to reduce NO3 and N2O5 concentrations in regions where DMS is the dominant VOC<br />
<br />
DMS, MSA Concentrations are changing due to changes in the DMS+OH and DMS+NO3 rate constants. At the surface changes are small and restricted to continental regions. <br />
<br />
Br compounds. These are restricted to the polar regions where concentrations are low and reflects the combination of other changes of longer lived species. The same is the case for HNO3. <br />
|-<br />
|At 500 hPa, list all species that changed by 10% or more:<br />
|NOx<br />
<br />
ISOP, MVK, MACR, PMN<br />
<br />
N2O5<br />
<br />
HNO4<br />
<br />
PRPE<br />
<br />
DMS, MSA<br />
<br />
NIT, NH4<br />
<br />
Br species <br />
|-<br />
|Comments on 500 hPa differences:<br />
|The largest changes here are to the DMS and MSA. This reflects the changes in the DMS+OH and DMS+NO3 oxidation routes which essentially both changes the location of DMS oxidation and the branching ratio of the DMS Oxidation <br />
<br />
isoprene chemistry changes again reflect changes in the primary oxidation of isoprene and the subsquent branching ration<br />
<br />
NIT, NH4 Isoropia seems unstable at cold temperatures and small changes leads to large relative changes in these compounds even though they are at low concentrations. <br />
<br />
N2O5, HNO4, Br species see above. <br />
|-<br />
|In the ZONAL MEAN differences, list all species that changed by 10% or more:<br />
|NOx<br />
<br />
ISOP, MVK, MACR, PMN<br />
<br />
PRPE<br />
<br />
CH2O<br />
<br />
N2O5<br />
<br />
HNO4<br />
<br />
MP<br />
<br />
DMS, MSA, SO2<br />
<br />
Br compounds<br />
|-<br />
|Comments on ZONAL MEAN differences:<br />
|NOx, HNO3, H2O2, CH2O, MP Reflect that changes seen in Browne et al., 2011<br />
<br />
DMS, MSA, SO2 reflect changes in the initial DMS oxidation of DMS+OH and DMS+NO3<br />
<br />
ISOP, MACR, MVK, PMN changes reflect changes in the ISOP oxidation ISOP+OH, O3, NO3<br />
<br />
The N2O5 decrease at ~200 hPa in the zonal mean is also consistent with Browne et al., 2011<br />
|-<br />
|In the EMISSION RATIO maps, list all species that changed by 10% or more:<br />
|No<br />
|-<br />
|Comments on EMISSION RATIO differences:<br />
|N/A<br />
|-<br />
|Additional or summary comments:<br />
|This all seems fine. In general changes are small in absolute concentrations but can be relatively large fractionally. <br />
|-bgcolor="#cccccc"<br />
!Approval<br />
!<br />
|-<br />
|Requires further investigation:<br />
|No<br />
|- <br />
|Approved:<br />
|MJE as long as others are happy. <br />
|-<br />
|Date of approval:<br />
|07 Feb 2013<br />
|}<br />
--[[User:Melissa Payer|Melissa Payer]] 09:31, 1 February 2013 (EST)<br />
<br />
=== v9-02e ===<br />
<br />
Here is the assessment form for 1-month benchmark simulation '''v9-02e'''.<br />
<br />
{| border=1 cellspacing=0 cellpadding=5<br />
|-bgcolor="#cccccc"<br />
!width="325px"|Description<br />
! <br />
|- <br />
|New features added into GEOS-Chem:<br />
|<br />
*[[Regridding_in_GEOS-Chem#Bug_in_regridding_of_anthropogenic_emissions|Bug fix for regridding of anthropogenic emissions (NEI2005, Streets)]]<br />
*[[Regridding_in_GEOS-Chem#Additional_bug_fixes_for_MAP_A2A_regridding_algorithm|Additional bug fixes for MAP_A2A regridding]]<br />
*[[MEGAN_biogenic_emissions#Bug_in_MEGAN_emissions_when_running_with_MERRA_or_GEOS-FP|Bug fix for MEGAN emissions when using MERRA or GEOS-FP]]<br />
|- <br />
|Developer name(s) and institution(s):<br />
|<br />
*''Regridding fixes:'' [[GEOS-Chem Support Team]]<br />
*''MEGAN fix:'' Tzung-May Fu (Peking University)<br />
|-<br />
|Version, resolution, met fields used:<br />
|v9-02, GEOS-5 (47L), 4x5<br />
|-<br />
|1-month benchmark finished on:<br />
|Fri Jan 4 17:01:07 EST 2013<br />
|-<br />
|Performance statistics:<br />
|<br />
*Ran on 8 CPUs of bench@titan-10.as.harvard.edu (2.659 GHz x 8 CPU)<br />
*Wall time: 2:32<br />
*Scalability: 6.3584<br />
|-<br />
|Compared to previous benchmark:<br />
|[[#v9-02d|v9-02d]]<br />
|-<br />
|This update will impact:<br>(select all that apply with '''boldface''')<br />
|Advection, BL Mixing, Convection, Met Fields, Dry Dep, Wet Dep, Stratosphere, '''Anthro Emiss''', Biogenic Emiss, Biomass Emiss, Photolysis, Chemistry, Other (please specify):<br />
|-<br />
|Plots may be viewed at:<br />
|<tt>ftp://ftp.as.harvard.edu/gcgrid/geos-chem/1mo_benchmarks/v9-02/v9-02e/</tt><br />
|-bgcolor="#cccccc"<br />
!Metrics<br />
! <br />
|-<br />
|Global mean OH (from log file):<br />
|12.9399839759816 x 10<sup>5</sup> molec/cm<sup>3</sup><br />
|-<br />
|Methyl chloroform lifetime:<br />
|4.8585 years<br />
|-<br />
|Did either of these change by more than 5%?<br />
|No<br />
|-<br />
|At the SURFACE, list all species that changed by 10% or more:<br />
|ISOP, NIT<br />
|-<br />
|Comments on SURFACE differences:<br />
|Differences are attributed to the [[ISORROPIA_II#Persistence_of_problem|numerical noise issue in ISORROPIA II]].<br />
|-<br />
|At 500 hPa, list all species that changed by 10% or more:<br />
|ISOP, NH3, NIT<br />
|-<br />
|Comments on 500 hPa differences:<br />
|Differences are attributed to the [[ISORROPIA_II#Persistence_of_problem|numerical noise issue in ISORROPIA II]].<br />
|-<br />
|In the ZONAL MEAN differences, list all species that changed by 10% or more:<br />
|ALK4, PMN, PRPE, C3H8, SO4s, NH3, NIT, NITs<br />
|-<br />
|Comments on ZONAL MEAN differences:<br />
|Differences are seen in ALK4, PMN, PRPE, C3H8, SO4s, NH3, and NITs are in locations where concentrations are already very low. These differences can be attributed to numerical noise.<br><br />
Differences in NH3 and NITs are attributed to the [[ISORROPIA_II#Persistence_of_problem|numerical noise issue in ISORROPIA II]].<br />
|-<br />
|In the EMISSION RATIO maps, list all species that changed by 10% or more:<br />
|None<br />
|-<br />
|Comments on EMISSION RATIO differences:<br />
|The [[Regridding_in_GEOS-Chem#Bug_in_regridding_of_anthropogenic_emissions|bug fix for regridding of Streets anthropogenic emissions]] caused CO anthropogenic emissions to change by 0.004 Tg (~0.01%).<br />
|-<br />
|Additional or summary comments:<br />
|<br />
|-bgcolor="#cccccc"<br />
!Approval<br />
!<br />
|-<br />
|Requires further investigation:<br />
|No<br />
|- <br />
|Approved:<br />
|Yes<br />
|-<br />
|Date of approval:<br />
|07 Jan 2013<br />
|}<br />
--[[User:Melissa Payer|Melissa Payer]] 16:01, 7 January 2013 (EST)<br />
<br />
=== v9-02d ===<br />
<br />
Here is the assessment form for 1-month benchmark simulation '''v9-02d'''.<br />
<br />
{| border=1 cellspacing=0 cellpadding=5<br />
|-bgcolor="#cccccc"<br />
!width="325px"|Description<br />
! <br />
|- <br />
|New features added into GEOS-Chem:<br />
|<br />
*[[Grid-Independent_GEOS-Chem:_Chemistry_Component#Activation_of_new_pathways_for_data_flow_and_other_structural_modifications|Grid-independent GEOS-Chem updates: Activation of new data pathways and other structural modifications]]<br />
*[[GEOS-Chem_v9-02#Bug_fix_for_Br2_emissions|Bug fix for Br2 emissions]]<br />
|- <br />
|Developer name(s) and institution(s):<br />
|<br />
*''Grid-Independent updates:'' [[GEOS-Chem Support Team]]<br />
*''Br2 bug fix:'' [[GEOS-Chem Support Team]]<br />
|-<br />
|Version, resolution, met fields used:<br />
|v9-02, GEOS-5 (47L), 4x5<br />
|-<br />
|1-month benchmark finished on:<br />
|Wed Dec 19 09:33:39 EST 2012<br />
|-<br />
|Performance statistics:<br />
|<br />
*Ran on 8 CPUs of bench@titan-08.as.harvard.edu (2.659 GHz x 8 CPU)<br />
*Wall time: 2:32<br />
*Scalability: 6.3638<br />
|-<br />
|Compared to previous benchmark:<br />
|[[#v9-02c|v9-02c]]<br />
|-<br />
|This update will impact:<br>(select all that apply with '''boldface''')<br />
|Advection, BL Mixing, Convection, Met Fields, Dry Dep, Wet Dep, Stratosphere, Anthro Emiss, Biogenic Emiss, Biomass Emiss, Photolysis, Chemistry, Other (please specify): '''We expected to see no changes from v9-02d. We have only made structural modifications but not scientific modifications.'''<br />
|-<br />
|Plots may be viewed at:<br />
|<tt>ftp://ftp.as.harvard.edu/gcgrid/geos-chem/1mo_benchmarks/v9-02/v9-02d/</tt><br />
|-bgcolor="#cccccc"<br />
!Metrics<br />
! <br />
|-<br />
|Global mean OH (from log file):<br />
|12.9397354478399 x 10<sup>5</sup> molec/cm<sup>3</sup><br />
|-<br />
|Methyl chloroform lifetime:<br />
|4.8586 years<br />
|-<br />
|Did either of these change by more than 5%?<br />
|No<br />
|-<br />
|At the SURFACE, list all species that changed by 10% or more:<br />
|NIT<br />
|-<br />
|Comments on SURFACE differences:<br />
|Differences in NIT are attributed to the [[ISORROPIA_II#Persistence_of_problem|numerical noise issue in ISORROPIA II]].<br />
|-<br />
|At 500 hPa, list all species that changed by 10% or more:<br />
|ISOP, NH3, NIT<br />
|-<br />
|Comments on 500 hPa differences:<br />
|Differences are seen in ISOP in locations where concentrations are already very low (i.e. over oceans). These differences are attributed to the [[GEOS-Chem_v9-02#Bug_fix_for_Br2_emissions|bromine bug fix]].<br />
Differences in NH3 and NIT are attributed to the [[ISORROPIA_II#Persistence_of_problem|numerical noise issue in ISORROPIA II]]. <br />
|-<br />
|In the ZONAL MEAN differences, list all species that changed by 10% or more:<br />
|ALK4, ISOP, PRPE, C3H8, SO4s, NH3, NIT, NITs, Br2, <br />
|-<br />
|Comments on ZONAL MEAN differences:<br />
|Differences are seen in ALK4, ISOP, PRPE, C3H8, SO4s, and Br2 are in locations where concentrations are already very low. These differences are attributed to the [[GEOS-Chem_v9-02#Bug_fix_for_Br2_emissions|bromine bug fix]].<br />
Differences in NH3 and NIT are attributed to the [[ISORROPIA_II#Persistence_of_problem|numerical noise issue in ISORROPIA II]]. <br />
|-<br />
|In the EMISSION RATIO maps, list all species that changed by 10% or more:<br />
|None<br />
|-<br />
|Comments on EMISSION RATIO differences:<br />
|<br />
|-<br />
|Additional or summary comments:<br />
|When ISORROPIA is turned off, and when the [[GEOS-Chem_v9-02#Bug_fix_for_Br2_emissions|Bug fix for Br2 emissions]] is also added to [[#v9-02c|v9-02c]], then we obtain identical results between v9-02c and v9-02d. This demonstrates that the structural modifications made for grid independence do not change GEOS-Chem's scientific results. Most of these modifications were made to carry data fields in [[Derived_type_objects_used_by_the_Grid-Independent_GEOS-Chem|derived-type objects]] rather than in module arrays, but the data fields themselves have not changed.<br />
|-bgcolor="#cccccc"<br />
!Approval<br />
!<br />
|-<br />
|Requires further investigation:<br />
|No<br />
|- <br />
|Approved:<br />
|Yes<br />
|-<br />
|Date of approval:<br />
|19 Dec 2012<br />
|}<br />
<br />
--[[User:Bmy|Bob Y.]] 10:39, 19 December 2012 (EST)<br />
<br />
=== v9-02c ===<br />
<br />
Here is the assessment form for 1-month benchmark simulation '''v9-02c'''.<br />
<br />
{| border=1 cellspacing=0 cellpadding=5<br />
|-bgcolor="#cccccc"<br />
!width="325px"|Description<br />
! <br />
|- <br />
|New features added into GEOS-Chem:<br />
|<br />
*[[EPA/NEI05_North_American_emissions|EPA/NEI05 North American Hg emissions]]<br />
*[[Mercury#Nested-grid Hg simulation over North America|Nested-grid Hg simulation]]<br />
*[[Mercury#Streets future Hg emissions|Streets future Hg emissions]]<br />
*[[Mercury#Updated Hg.280.29 oxidation kinetics|Correct Hg simulation to use updated Hg(0) oxidation kinetics]]<br />
*[[Mercury#Capability to use GEOS-Chem Br.2FBrO fields in Hg simulation|Capability to use GEOS-Chem Br/BrO fields in Hg simulation]]<br />
*[[POPs simulation|POPs simulation: Polycyclic aromatic hydrocarbons]]<br />
*[[GEOS-Chem v9-02#Bug fix for updated CAC emissions|Bug fix for updated CAC emissions]]<br />
|- <br />
|Developer name(s) and institution(s):<br />
|<br />
*''NEI05 Hg emissions:'' Yanxu Zhang (U. Washington); Lyatt Jaegl&eacute; (U. Washington)<br />
*''Nested-grid Hg:'' Yanxu Zhang (U. Washington); Lyatt Jaegl&eacute; (U. Washington)<br />
*''Streets future Hg emissions:'' Bess Corbitt (Harvard)<br />
*''Updated Hg(0) oxidation kinetics:'' Bess Corbitt(Harvard); Justin Parrella (Harvard)<br />
*''GEOS-Chem Br/Br fields in Hg simulation:'' Bess Corbitt(Harvard); Justin Parrella (Harvard)<br />
*''POPs simulation:'' Carey Friedman (MIT); Noelle Selin (MIT)<br />
*''CAC bug fix:'' Aaron van Donkelaar (Dalhousie)<br />
|-<br />
|Version, resolution, met fields used:<br />
|v9-02, GEOS-5 (47L), 4x5<br />
|-<br />
|1-month benchmark finished on:<br />
|Wed Nov 28 22:37:00 EST 2012<br />
|-<br />
|Performance statistics:<br />
|<br />
*Ran on 8 CPUs of 8 CPUs of bench@titan-08.as.harvard.edu (2.659 GHz x 8 CPU)<br />
*Wall time: 2:20<br />
*Scalability: 6.5218<br />
|-<br />
|Compared to previous benchmark:<br />
|[[#v9-02b|v9-02b]]<br />
|-<br />
|This update will impact:<br>(select all that apply with '''boldface''')<br />
|Advection, BL Mixing, Convection, Met Fields, Dry Dep, Wet Dep, Stratosphere, Anthro Emiss, Biogenic Emiss, Biomass Emiss, Photolysis, Chemistry, Other (please specify): '''We expect to see no changes from v9-02b'''<br />
|-<br />
|Plots may be viewed at:<br />
|<tt>ftp://ftp.as.harvard.edu/gcgrid/geos-chem/1mo_benchmarks/v9-02/v9-02c/</tt><br />
|-bgcolor="#cccccc"<br />
!Metrics<br />
! <br />
|-<br />
|Global mean OH (from log file):<br />
|12.9398281506753 x 10<sup>5</sup> molec/cm<sup>3</sup><br />
|-<br />
|Methyl chloroform lifetime:<br />
|4.8585 years<br />
|-<br />
|Did either of these change by more than 5%?<br />
|No<br />
|-<br />
|At the SURFACE, list all species that changed by 10% or more:<br />
|None<br />
|-<br />
|Comments on SURFACE differences:<br />
| <br />
|-<br />
|At 500 hPa, list all species that changed by 10% or more:<br />
|None<br />
|-<br />
|Comments on 500 hPa differences:<br />
|<br />
|-<br />
|In the ZONAL MEAN differences, list all species that changed by 10% or more:<br />
|None<br />
|-<br />
|Comments on ZONAL MEAN differences:<br />
|<br />
|-<br />
|In the EMISSION RATIO maps, list all species that changed by 10% or more:<br />
|None<br />
|-<br />
|Comments on EMISSION RATIO differences:<br />
|<br />
|-<br />
|Additional or summary comments:<br />
|<br />
|-bgcolor="#cccccc"<br />
!Approval<br />
!<br />
|-<br />
|Requires further investigation:<br />
|No<br />
|- <br />
|Approved:<br />
|Yes<br />
|-<br />
|Date of approval:<br />
|29 Nov 2012<br />
|}<br />
<br />
--[[User:Melissa Payer|Melissa Payer]] 16:58, 27 November 2012 (EST)<br />
<br />
=== v9-02b ===<br />
<br />
Here is the assessment form for 1-month benchmark simulation '''v9-02b'''.<br />
<br />
{| border=1 cellspacing=0 cellpadding=5<br />
|-bgcolor="#cccccc"<br />
!width="325px"|Description<br />
! <br />
|- <br />
|New features added into GEOS-Chem:<br />
|<br />
*[[Soil_NOx_emissions#Updated_soil_NOx_emissions_algorithm|New soil NOx emission module]]<br />
*[[GEOS-Chem_v9-01-03#Bug_fix_in_hdf_mod.F|Bug fix in hdf_mod.F]]<br />
*[[GEOS-Chem_v9-02#Bug fixes for tagged CO simulation|Bug fixes for tagged CO simulation]]<br />
*[[GEOS-Chem v9-01-03#Bug fix in nei2005_anthro_mod.F|Bug fix for nested simulation in nei2005_anthro_mod.F]]<br />
|- <br />
|Developer name(s) and institution(s):<br />
|<br />
*''Soil NOx:'' Rynda Hudman Kay (EPA); Neil Moore (formerly of Dalhousie); Bram Maasakkers (Eindhoven)<br />
*''Bug fix in hdf_mod.F:'' Sajeev Philip (Dalhousie)<br />
*''Tagged CO simulation fixes:'' Jenny Fisher (Wollongong); [[GEOS-Chem Support Team]]<br />
*''Bug fix in nei_anthro_mod.F:'' Sajeev Philip (Dalhousie)<br />
|-<br />
|Version, resolution, met fields used:<br />
|v9-02, GEOS-5 (47L), 4x5<br />
|-<br />
|1-month benchmark finished on:<br />
|Wed Oct 24 16:10:25 EDT 2012<br />
|-<br />
|Performance statistics:<br />
|<br />
*Ran on 8 CPUs of bench@titan-08.as.harvard.edu (2.659 GHz x 8 CPU)<br />
*Wall time: 2:19<br />
*Scalability: 6.5256<br />
|-<br />
|Compared to previous benchmark:<br />
|[[#v9-02a|v9-02a]]<br />
|-<br />
|This update will impact:<br>(select all that apply with '''boldface''')<br />
|Advection, BL Mixing, Convection, Met Fields, Dry Dep, Wet Dep, Stratosphere, Anthro Emiss, Biogenic Emiss, Biomass Emiss, Photolysis, Chemistry, Other (please specify): '''Soil NOx emissions'''<br />
|-<br />
|Plots may be viewed at:<br />
|<tt>ftp://ftp.as.harvard.edu/gcgrid/geos-chem/1mo_benchmarks/v9-02/v9-02b/</tt><br />
|-bgcolor="#cccccc"<br />
!Metrics<br />
! <br />
|-<br />
|Global mean OH (from log file):<br />
|12.9398281506753 x 10<sup>5</sup> molec/cm<sup>3</sup><br />
|-<br />
|Methyl chloroform lifetime:<br />
|4.8585 years<br />
|-<br />
|Did either of these change by more than 5%?<br />
|No<br />
|-<br />
|At the SURFACE, list all species that changed by 10% or more:<br />
|NOx, Ox, PAN, ALK4, ISOP, HNO3, H2O2, MEk, ALD2, RCHO, MVK, MACR, PMN, PPN, R4N2, PRPE, C3H8, CH2O, N2O5, HNO4, MP, DMS, SO2, SO4, SO4s, MSA, NH3, NH4, NIT, NITs, Br2, Br, BrO, HOBr, HBr, BrNO2, BrNO3, and OH<br />
|-<br />
|Comments on SURFACE differences:<br />
|The changes are as expected. The new soil NOx parameterization significantly increases the NOx concentrations over North America, the southern part of South America, Central Asia and parts of Africa. Decreases occur over the northern part of South America, central Africa and Indonesia. <br />
Other species are influenced by resulting changes in O3 (and consequently OH). However, some of the reported changes are mainly caused by noise since the absolute differences are very close to zero. <br />
|-<br />
|At 500 hPa, list all species that changed by 10% or more:<br />
|NOx, PAN, ALK4, ISOP, HNO3, MEK, ALD2, RCHO, MVK, MACR, PMN, PPN, PRPE, N2O5, HNO4, MP, DMS, SO2, MSA, NH3, NIT, NITs, Br2, Br, BrO, HOBr, HBr, BrNO2, BrNO3, and OH<br />
|-<br />
|Comments on 500 hPa differences:<br />
|See 'Comments on SURFACE differences'<br />
|-<br />
|In the ZONAL MEAN differences, list all species that changed by 10% or more:<br />
|NOx, PAN, ISOP, HNO3, MEK, RCHO, MVK, MACR, PMN, PPN, PRPE, N2O5, HNO4, DMS, SO4s, NH3, NIT, NITs, Br, BrO, BrNO2, BrNO3 and OH. <br />
|-<br />
|Comments on ZONAL MEAN differences:<br />
|See 'Comments on SURFACE differences'<br />
|-<br />
|In the EMISSION RATIO maps, list all species that changed by 10% or more:<br />
|NOx fertilizer emissions and NOx soil emissions<br />
|-<br />
|Comments on EMISSION RATIO differences:<br />
|The NOx soil emissions diagnostic now includes the NOx fertilizer emissions since the emissions related to fertilizer are now calculated using the same procedure as the “regular” soil emissions based on the biome emission coefficients. The soil NOx emission total increases with 0.310 Tg N to 1.028 Tg N for July. <br />
The fertilizer emissions diagnostics gives the soil NOx emissions related to fertilizer use and deposited nitrogen. <br />
|-<br />
|Additional or summary comments:<br />
|The occurring changes are as expected. The benchmark is performed using a new soil NOx restart file which saves per grid cell:<br />
*The Dry Period (hours)<br />
*Pulsing factor (unitless)<br />
*GWET from the previous timestep (unitless)<br />
*N reservoir from dry/wet deposition (ngN/m2)<br />
<br />
The overall changes are in NOx emissions are consistent with those in Hudman et al. (2012) with the additional canopy reduction that Bram added. <br />
The changes in O3 and OH follow the changes in NOx emissions. <br />
<br />
|-bgcolor="#cccccc"<br />
!Approval<br />
!<br />
|-<br />
|Requires further investigation:<br />
|No<br />
|- <br />
|Approved:<br />
|Randall Martin, Bram Maasakkers<br />
|-<br />
|Date of approval:<br />
|29 Oct 2012<br />
|}<br />
<br />
--[[User:Melissa Payer|Melissa Payer]] 13:42, 24 October 2012 (EDT)<br />
<br />
=== v9-02a ===<br />
<br />
Here is the assessment form for 1-month benchmark simulation '''v9-02a'''.<br />
<br />
{| border=1 cellspacing=0 cellpadding=5<br />
|-bgcolor="#cccccc"<br />
!width="325px"|Description<br />
! <br />
|- <br />
|New features added into GEOS-Chem:<br />
|<br />
*[[Boundary layer mixing#Updates on GEOS-5 PBL height .26 diurnal variation of aerosols|Correction for GEOS-5 PBL heights]]<br />
|- <br />
|Developer name(s) and institution(s):<br />
|<br />
*Sajeev Philip (Dalhousie)<br />
|-<br />
|Version, resolution, met fields used:<br />
|v9-02, GEOS-5 (47L), 4x5<br />
|-<br />
|1-month benchmark finished on:<br />
|Fri Oct 12 17:58:19 EDT 2012<br />
|-<br />
|Performance statistics:<br />
|<br />
*Ran on 8 CPUs of bench@titan-10.as.harvard.edu (2.659 GHz x 8 CPU)<br />
*Wall time: 2:19<br />
*Scalability: 6.5621<br />
|-<br />
|Compared to previous benchmark:<br />
|[[GEOS-Chem v9-01-03 benchmark history#v9-01-03-Fix_for_IFORT12|v9-01-03-Fix_for_IFORT12]]<br />
|-<br />
|This update will impact:<br>(select all that apply with '''boldface''')<br />
|Advection, '''BL Mixing''', Convection, Met Fields, Dry Dep, Wet Dep, Stratosphere, Anthro Emiss, Biogenic Emiss, Biomass Emiss, Photolysis, Chemistry, Other (please specify):<br />
|-<br />
|Plots may be viewed at:<br />
|<tt>ftp://ftp.as.harvard.edu/gcgrid/geos-chem/1mo_benchmarks/v9-02/v9-02a/</tt><br />
|-bgcolor="#cccccc"<br />
!Metrics<br />
! <br />
|-<br />
|Global mean OH (from log file):<br />
|12.8727104044567 x 10<sup>5</sup> molec/cm<sup>3</sup><br />
|-<br />
|Methyl chloroform lifetime:<br />
|4.8983 years<br />
|-<br />
|Did either of these change by more than 5%?<br />
|No<br />
|-<br />
|At the SURFACE, list all species that changed by 10% or more:<br />
|All species<br />
|-<br />
|Comments on SURFACE differences:<br />
|Expected. Change in boundary layer mixing <br />
|-<br />
|At 500 hPa, list all species that changed by 10% or more:<br />
|DST4, NITS, NH3, DMS, PRPE, MACR, ISOP (over Ocean) and NIT (over Land)<br />
|-<br />
|Comments on 500 hPa differences:<br />
|Change in boundary layer mixing <br />
|-<br />
|In the ZONAL MEAN differences, list all species that changed by 10% or more:<br />
|All species<br />
|-<br />
|Comments on ZONAL MEAN differences:<br />
|Change in boundary layer mixing <br />
|-<br />
|In the EMISSION RATIO maps, list all species that changed by 10% or more:<br />
|None<br />
|-<br />
|Comments on EMISSION RATIO differences:<br />
|None<br />
|-<br />
|Additional or summary comments:<br />
|None<br />
|-bgcolor="#cccccc"<br />
!Approval<br />
!<br />
|-<br />
|Requires further investigation:<br />
|No<br />
|- <br />
|Approved:<br />
|Yes<br />
|-<br />
|Date of approval:<br />
|Approved 16 Oct 2012<br />
|}<br />
<br />
--[[User:Melissa Payer|Melissa Payer]] 12:00, 15 October 2012 (EDT)<br />
<br />
== Special benchmarks ==<br />
<br />
=== v9-02k Rn-Pb-Be ===<br />
<br />
[mailto:kyu@seas.harvard.edu Karen Yu] performed 1-month [[Rn-Pb-Be simulation|Rn-Pb-Be simulations]] using [[GEOS-Chem v9-02 benchmark history#v9-02k|GEOS-Chem v9-02k]] to evaluate the [[GEOS-FP]] met fields. The simulations were done for the month March 2013, with a 1-moth spinup. For comparison of the Pb-210 and Be-7 budgets to previous versions, please see the following posts on the Rn-Pb-Be simulation wiki page:<br />
#[[Rn-Pb-Be simulation#Budget of Pb210 from 1-year benchmark simulations|Budget of Pb210 from 1-year benchmark simulations]]<br />
#[[Rn-Pb-Be simulation#Budget of Be7 from 1-year benchmark simulations|Budget of Be7 from 1-year benchmark simulations]]<br />
<br />
You may view the benchmark plots for the simulation by pointing your browser to:<br />
<br />
http://ftp.as.harvard.edu/pub/index/exchange/mpayer/1mo_quick_look/v9-02k_RnPbBe/GEOS_FP/output/pdf/<br />
<br />
and<br />
<br />
http://ftp.as.harvard.edu/pub/index/exchange/mpayer/1mo_quick_look/v9-02k_RnPbBe/GEOS_5/output/pdf/<br />
<br />
--[[User:Melissa Payer|Melissa Sulprizio]] 14:42, 13 September 2013 (EDT)<br />
<br />
=== v9-02o SOA ===<br />
<br />
One-month benchmark simulations were performed for [[GEOS-Chem v9-02 benchmark history#v9-02n|v9-02n]] using the [[Secondary organic aerosols#The SOA simulation prior to v9-02|traditional SOA simulation]] and for [[GEOS-Chem v9-02 benchmark history#v9-02o|v9-02o]] using the [[Secondary organic aerosols#SOA simulation with semi-volatile POA|updated SOA simulation]]. The optional semivolatile POA and IVOC features were turned off in the updated SOA simulation. The standard 1-month benchmark plots comparing these simulations were created to evaluate tracers 1-66. The benchmark plots may be viewed at:<br />
<br />
http://ftp.as.harvard.edu/pub/exchange/mpayer/1mo_quick_look/v9-02o_SOA/output/<br />
<br />
'''''Jeff Pierce wrote:'''''<br />
:I've gone through and compared the SOA and SOG tracer concentrations for the simulations using Havala's SOA scheme vs. the old-school SOA scheme. Everything seems to make sense including (1) the partitioning between SOA and SOG for the various volatility bins, (2) the spatial dependence of the terpene-based, isoprene-based and anthro-based SOA, and (3) the magnitude of the concentrations compared to the old-school scheme. There may be some subtleties that Havala may be able to spot, but there was nothing I was able to see that looked odd. There seems to be no impact on the other species in the ratio and difference maps.<br />
<br />
'''''Havala Pye wrote:'''''<br />
:I concur with Jeff. The v9-02o benchmark looks good in terms of magnitude and spatial variability.<br />
<br />
--[[User:Melissa Payer|Melissa Sulprizio]] 14:42, 13 September 2013 (EDT)</div>Rvmartinhttps://wiki.seas.harvard.edu/geos-chem/index.php?title=GEOS-Chem_v9-02_benchmark_history&diff=14459GEOS-Chem v9-02 benchmark history2013-09-17T11:12:28Z<p>Rvmartin: /* v9-02q */</p>
<hr />
<div>On this page we have posted complete information about all benchmark simulations (both 1-month and 1-year) for [[GEOS-Chem v9-02]].<br />
<br />
== 1-year benchmarks ==<br />
<br />
=== v9-02l-Run0 ===<br />
<br />
'''''This 1-year benchmark simulation was approved by the [http://acmg.seas.harvard.edu/geos/geos_steering_cmte.html GEOS-Chem Steering Committee] on 02 Jul 2013.'''''<br />
<br />
Three GEOS-Chem model versions were compared to each other:<br />
<br />
{| border=1 cellspacing=0 cellpadding=5 <br />
|- bgcolor="#CCCCCC"<br />
!Color <br />
!width="110px"|Quantity Plotted<br />
!width="110px"|Met Type<br />
!width="450px"|Anthro emissions<br />
!width="400px"|Tropospheric chemistry mechanism<br />
!Linoz<br />
!Annual Mean OH<br>[10<sup>5</sup> molec/cm3]<br />
<br />
|-align="center"<br />
|Red<br />
|[[GEOS-Chem v9-02 benchmark history#v9-02g-Run0|v9-02g-Run0]]<br />
|GEOS-5, 4x5<br />
|Same as [[GEOS-Chem v9-01-03 benchmark history#Run0|v9-01-03r-Run0]]<br />
|Same as [[GEOS-Chem v9-02 benchmark history#v9-02f-Run0|v9-02f-Run0]]<br>'''+ [[New_isoprene_scheme|Adopt Paulot isoprene scheme as standard]] <br>+ [[New_isoprene_scheme#Update_One_-_RO2.2BHO2_Reaction_Rate|Fix RO2+HO2 rate constant]]'''<br />
|ON<br />
|12.472<br />
<br />
|-align="center"<br />
|Green<br />
|[[GEOS-Chem v9-02 benchmark history#v9-02j-Run0|v9-02j-Run0]]<br />
|GEOS-5, 4x5<br />
|" "<br />
|'''+ [[NOx-Ox-HC-aerosol#Removal of NOx and Ox partitioning|Removal of NOx-Ox partitioning]] <br>+[[ChemTelecon20111202|Inhibition of N2O5 uptake by nitrate aerosol]] <br>+[[NOx-Ox-HC-aerosol#Improved_HO2_uptake|Improved HO2 uptake by aerosol]]'''<br />
|ON<br />
|12.238<br />
<br />
|-align="center"<br />
|Blue<br />
|[[GEOS-Chem v9-02 benchmark history#v9-02l-Run0|v9-02l-Run0]]<br />
|GEOS-5, 4x5<br />
|'''+[[EPA/NEI05 North American emissions#Updated NH3 seasonal scaling factors in v9-02|Updated NH3 seasonal scaling factors over the US]]<br>+ [[Anthropogenic_emissions#CAC|Updated Canadian NH3 inventory]]<br>+ [[GEOS-Chem v9-02#Bug fixes in biofuel_mod.F and emfossil.F|Fix diurnal NOx scale factors and fix double counting of biofuels over Mexico, Canada, and Europe]]<br>+ [[Biomass_burning_emissions#Bug_fix_for_3-hourly_GFED3_emissions|Bug fix for 3-hourly GFED3 emissions]]<br>+ [[Scale factors for anthropogenic emissions#Bug fix for anthropogenic scaling factors for years 2006 and later|Bug fix for anthropogenic scaling factors for years 2006 and later]]<br>+ [[Ship_emissions#Bugs_in_ship_emissions_and_non-local_PBL_mixing|Correct additional bugs in ship emissions w/ non-local PBL mixing]]<br>+ [[Ship emissions#Bug in ship CO emissions|Bug fix for ship CO emissions]]'''<br />
|" "<br />
|ON<br />
|12.570<br />
<br />
|-align="center"<br />
|Black <br />
|Observations<br />
|&nbsp; <br />
|&nbsp; <br />
|&nbsp;<br />
|&nbsp;<br />
!&nbsp;<br />
|}<br />
<br />
<br />
The output plots for Run0 (both PostScript and PDF format) may be downloaded from:<br />
<br />
ftp ftp.as.harvard.edu<br />
cd gcgrid/geos-chem/1yr_benchmarks/v9-02/v9-02l/Run0/output/ps<br />
mget *<br />
cd gcgrid/geos-chem/1yr_benchmarks/v9-02/v9-02l/Run0/output/pdf<br />
mget *<br />
<br />
You may also view the PDF files online by pointing your browser to<br />
<br />
http://ftp.as.harvard.edu/gcgrid/geos-chem/1mo_benchmarks/v9-02/v9-02l/<br />
<br />
--[[User:Melissa Payer|Melissa Payer]] 17:14, 26 June 2013 (EDT)<br />
<br />
=== v9-02j-Run0 ===<br />
<br />
'''''This 1-year benchmark simulation was approved by the [http://acmg.seas.harvard.edu/geos/geos_steering_cmte.html GEOS-Chem Steering Committee] on 03 Jun 2013.'''''<br />
<br />
Three GEOS-Chem model versions were compared to each other:<br />
<br />
{| border=1 cellspacing=0 cellpadding=5 <br />
|- bgcolor="#CCCCCC"<br />
!Color <br />
!Quantity Plotted<br />
!Met Type<br />
!Anthro emissions<br />
!Tropospheric chemistry mechanism<br />
!Linoz<br />
!Annual Mean OH<br>[10<sup>5</sup> molec/cm3]<br />
<br />
|-align="center"<br />
|Red<br />
|[[GEOS-Chem v9-02 benchmark history#v9-02f-Run0|v9-02f-Run0]]<br />
|GEOS-5, 4x5<br />
|Same as [[GEOS-Chem v9-01-03 benchmark history#Run0|v9-01-03r-Run0]]<br />
|Same as [[GEOS-Chem_v9-01-03_benchmark_history#Run1|v9-01-03r-Run1]]'''+ [[Updating_standard_chemistry_with_JPL_10-6|Inorganic chemistry updates]] <br>+ [[Methyl peroxy nitrate chemistry|Methyl peroxy nitrate (MPN) chemistry]]'''<br />
|ON<br />
|11.503<br />
<br />
|-align="center"<br />
|Green<br />
|[[GEOS-Chem v9-02 benchmark history#v9-02g-Run0|v9-02g-Run0]]<br />
|GEOS-5, 4x5<br />
|" "<br />
|'''+ [[New_isoprene_scheme|Adopt Paulot isoprene scheme as standard]] <br>+ [[New_isoprene_scheme#Update_One_-_RO2.2BHO2_Reaction_Rate|Fix RO2+HO2 rate constant]]'''<br />
|ON<br />
|12.472<br />
<br />
|-align="center"<br />
|Blue<br />
|[[GEOS-Chem v9-02 benchmark history#v9-02j-Run0|v9-02j-Run0]]<br />
|GEOS-5, 4x5<br />
|" "<br />
|'''+ [[NOx-Ox-HC-aerosol#Removal of NOx and Ox partitioning|Removal of NOx-Ox partitioning]] <br>+[[ChemTelecon20111202|Inhibition of N2O5 uptake by nitrate aerosol]] <br>+[[NOx-Ox-HC-aerosol#Improved_HO2_uptake|Improved HO2 uptake by aerosol]]<br />
|ON<br />
|12.238<br />
<br />
|-align="center"<br />
|Black <br />
|Observations<br />
|&nbsp; <br />
|&nbsp; <br />
|&nbsp;<br />
|&nbsp;<br />
!&nbsp;<br />
|}<br />
<br />
<br />
The output plots for Run0 (both PostScript and PDF format) may be downloaded from:<br />
<br />
ftp ftp.as.harvard.edu<br />
cd gcgrid/geos-chem/1yr_benchmarks/v9-02/v9-02j/Run0/output/ps<br />
mget *<br />
cd gcgrid/geos-chem/1yr_benchmarks/v9-02/v9-02j/Run0/output/pdf<br />
mget *<br />
<br />
You may also view the PDF files online by pointing your browser to<br />
<br />
http://ftp.as.harvard.edu/gcgrid/geos-chem/1yr_benchmarks/v9-02/v9-02j/Run0/output/pdf/<br />
<br />
--[[User:Melissa Payer|Melissa Payer]] 13:02, 31 May 2013 (EDT)<br />
<br />
=== v9-02g-Run0 ===<br />
<br />
'''''This 1-year benchmark simulation was approved by the [http://acmg.seas.harvard.edu/geos/geos_steering_cmte.html GEOS-Chem Steering Committee] on 01 Apr 2013.'''''<br />
<br />
Three GEOS-Chem model versions were compared to each other:<br />
<br />
{| border=1 cellspacing=0 cellpadding=5 <br />
|- bgcolor="#CCCCCC"<br />
!Color <br />
!Quantity Plotted<br />
!Met Type<br />
!Anthro emissions<br />
!Soil NOx emissions<br />
!Tropospheric chemistry mechanism<br />
!Linoz<br />
!Annual Mean OH<br>[10<sup>5</sup> molec/cm3]<br />
<br />
|-align="center"<br />
|Red<br />
|[[GEOS-Chem v9-02 benchmark history#v9-02b-Run0|v9-02b-Run0]]<br />
|GEOS-5, 4x5<br />
|Same as [[GEOS-Chem v9-01-03 benchmark history#Run0|v9-01-03r-Run0]]<br />
|'''[[Soil_NOx_emissions#Updated_soil_NOx_emissions_algorithm|New soil NOx emission module]]'''<br />
|Same as [[GEOS-Chem v9-01-03 benchmark history#Run1|v9-01-03r-Run1]]<br />
|ON<br />
|11.424<br />
<br />
|-align="center"<br />
|Green<br />
|[[GEOS-Chem v9-02 benchmark history#v9-02f-Run0|v9-02f-Run0]]<br />
|GEOS-5, 4x5<br />
|" "<br />
|" "<br />
|'''+ [[Updating_standard_chemistry_with_JPL_10-6|Inorganic chemistry updates]] <br>+ [[Methyl peroxy nitrate chemistry|Methyl peroxy nitrate (MPN) chemistry]]'''<br />
|ON<br />
|11.503<br />
<br />
|-align="center"<br />
|Blue<br />
|[[GEOS-Chem v9-02 benchmark history#v9-02g-Run0|v9-02g-Run0]]<br />
|GEOS-5, 4x5<br />
|" "<br />
|" "<br />
|'''+ [[New_isoprene_scheme|Adopt Paulot isoprene scheme as standard]] <br>+ [[New_isoprene_scheme#Update_One_-_RO2.2BHO2_Reaction_Rate|Fix RO2+HO2 rate constant]]'''<br />
|ON<br />
|12.472<br />
<br />
|-align="center"<br />
|Black <br />
|Observations<br />
|&nbsp; <br />
|&nbsp; <br />
|&nbsp;<br />
|&nbsp;<br />
|&nbsp;<br />
!&nbsp;<br />
|}<br />
<br />
<br />
The output plots for Run0 (both PostScript and PDF format) may be downloaded from:<br />
<br />
ftp ftp.as.harvard.edu<br />
cd gcgrid/geos-chem/1yr_benchmarks/v9-02/v9-02g/Run0/output/ps<br />
mget *<br />
cd gcgrid/geos-chem/1yr_benchmarks/v9-02/v9-02g/Run0/output/pdf<br />
mget *<br />
<br />
You may also view the PDF files online by pointing your browser to<br />
<br />
http://ftp.as.harvard.edu/gcgrid/geos-chem/1yr_benchmarks/v9-02/v9-02g/Run0/output/pdf/<br />
<br />
--[[User:Melissa Payer|Melissa Payer]] 12:15, 29 March 2013 (EDT)<br />
<br />
=== v9-02f-Run0 ===<br />
<br />
'''''This 1-year benchmark simulation was approved by the [http://acmg.seas.harvard.edu/geos/geos_steering_cmte.html GEOS-Chem Steering Committee] on 20 Mar 2013.'''''<br />
<br />
Three GEOS-Chem model versions were compared to each other:<br />
<br />
{| border=1 cellspacing=0 cellpadding=5 <br />
|- bgcolor="#CCCCCC"<br />
!Color <br />
!Quantity Plotted<br />
!Met Type<br />
!Anthro emissions<br />
!Soil NOx emissions<br />
!Tropospheric chemistry mechanism<br />
!Linoz<br />
!Annual Mean OH<br>[10<sup>5</sup> molec/cm3]<br />
<br />
|-align="center"<br />
|Red<br />
|[[GEOS-Chem v9-01-03 benchmark history#Run1|v9-01-03r-Run1]]<br />
|GEOS-5, 4x5<br />
|Same as [[GEOS-Chem v9-01-03 benchmark history#Run0|v9-01-03r-Run0]]<br />
|Original soil NOx algorithm based on Yienger & Levy [1995]<br />
|Same as [[GEOS-Chem_v8-02-01#Run0|v8-02-01-Run0]] <br>'''+ [[Bromine chemistry mechanism|Bromine chemistry mechanism]]'''<br />
|ON<br />
|11.356<br />
<br />
|-align="center"<br />
|Green<br />
|[[GEOS-Chem v9-02 benchmark history#v9-02b-Run0|v9-02b-Run0]]<br />
|GEOS-5, 4x5<br />
|" "<br />
|'''[[Soil_NOx_emissions#Updated_soil_NOx_emissions_algorithm|New soil NOx emission module]]'''<br />
|" "<br />
|ON<br />
|11.424<br />
<br />
|-align="center"<br />
|Blue<br />
|[[GEOS-Chem v9-02 benchmark history#v9-02f-Run0|v9-02f-Run0]]<br />
|GEOS-5, 4x5<br />
|" "<br />
|" "<br />
|'''+ [[Updating_standard_chemistry_with_JPL_10-6|Inorganic chemistry updates]] <br>+ [[Methyl peroxy nitrate chemistry|Methyl peroxy nitrate (MPN) chemistry]]'''<br />
|ON<br />
|11.503<br />
<br />
|-align="center"<br />
|Black <br />
|Observations<br />
|&nbsp; <br />
|&nbsp; <br />
|&nbsp;<br />
|&nbsp;<br />
|&nbsp;<br />
!&nbsp;<br />
|}<br />
<br />
<br />
The output plots for Run0 (both PostScript and PDF format) may be downloaded from:<br />
<br />
ftp ftp.as.harvard.edu<br />
cd gcgrid/geos-chem/1yr_benchmarks/v9-02/v9-02f/Run0/output/ps<br />
mget *<br />
cd gcgrid/geos-chem/1yr_benchmarks/v9-02/v9-02f/Run0/output/pdf<br />
mget *<br />
<br />
You may also view the PDF files online by pointing your browser to<br />
<br />
http://ftp.as.harvard.edu/gcgrid/geos-chem/1yr_benchmarks/v9-02/v9-02f/Run0/output/pdf/<br />
<br />
--[[User:Melissa Payer|Melissa Payer]] 18:06, 18 March 2013 (EDT)<br />
<br />
=== v9-02b-Run0 ===<br />
<br />
''NOTE: A 1-year benchmark simulation was performed for v9-02b to serve as a reference when benchmarking the chemistry updates implemented in v9-02f.''<br />
<br />
Three GEOS-Chem model versions were compared to each other:<br />
<br />
{| border=1 cellspacing=0 cellpadding=5 <br />
|- bgcolor="#CCCCCC"<br />
!Color <br />
!Quantity Plotted<br />
!Met Type<br />
!Anthro emissions<br />
!Soil NOx emissions<br />
!Tropospheric chemistry mechanism<br />
!Linoz<br />
!Annual Mean OH<br>[10<sup>5</sup> molec/cm3]<br />
<br />
|-align="center"<br />
|Red<br />
|[[GEOS-Chem v9-01-03 benchmark history#Run0|v9-01-03r-Run0]]<br />
|GEOS-5, 4x5<br />
|Same as [[GEOS-Chem_v9-01-02_benchmark_history#Run1|v9-01-02-Run1]]<br> '''+ [[Implementation of RETRO Anthropogenic Emissions#RETRO anthropogenic ethane emissions are too low|C2H6 emissions from offline simulation]]<br>+ [[Ship emissions#PARANOX ship plume model|PARANOX ship plume emissions]]'''<br />
|Original soil NOx algorithm based on Yienger & Levy [1995]<br />
|Same as [[GEOS-Chem_v8-02-01#Run0|v8-02-01-Run0]]<br />
|ON<br />
|11.858<br />
<br />
|-align="center"<br />
|Green<br />
|[[GEOS-Chem v9-01-03 benchmark history#Run1|v9-01-03r-Run1]]<br />
|GEOS-5, 4x5<br />
|" "<br />
|" "<br />
|'''+ [[Bromine chemistry mechanism|Bromine chemistry mechanism]]'''<br />
|ON<br />
|11.356<br />
<br />
|-align="center"<br />
|Blue<br />
|[[GEOS-Chem_v9-02_benchmark_history#v9-02b-Run0|v9-02b-Run0]]<br />
|GEOS-5, 4x5<br />
|" "<br />
|'''[[Soil_NOx_emissions#Updated_soil_NOx_emissions_algorithm|New soil NOx emission module]]'''<br />
|" "<br />
|ON<br />
|11.424<br />
<br />
|-align="center"<br />
|Black <br />
|Observations<br />
|&nbsp; <br />
|&nbsp; <br />
|&nbsp;<br />
|&nbsp;<br />
|&nbsp;<br />
!&nbsp;<br />
|}<br />
<br />
<br />
The output plots for Run0 (both PostScript and PDF format) may be downloaded from:<br />
<br />
ftp ftp.as.harvard.edu<br />
cd gcgrid/geos-chem/1yr_benchmarks/v9-02/v9-02b/Run0/output/ps<br />
mget *<br />
cd gcgrid/geos-chem/1yr_benchmarks/v9-02/v9-02b/Run0/output/pdf<br />
mget *<br />
<br />
You may also view the PDF files online by pointing your browser to<br />
<br />
http://ftp.as.harvard.edu/gcgrid/geos-chem/1yr_benchmarks/v9-02/v9-02b/Run0/output/pdf/<br />
<br />
--[[User:Melissa Payer|Melissa Payer]] 18:06, 18 March 2013 (EDT)<br />
<br />
== 1-month benchmarks ==<br />
<br />
=== v9-02q ===<br />
<br />
Here is the assessment form for 1-month benchmark simulation '''v9-02q'''.<br />
<br />
{| border=1 cellspacing=0 cellpadding=5<br />
|-bgcolor="#cccccc"<br />
!width="325px"|Description<br />
! <br />
|- <br />
|New features added into GEOS-Chem:<br />
|<br />
*[[Aerosol optical properties#Better representation of OC growth with RH and correction to sulfate optics|Update jv_spec.dat and jv_spec_aod.dat with better representation of OC growth with RH and correction to sulfate optics]]<br />
*[[Aerosol_optical_properties#Fix_to_jv_spec_aod.dat|Bug fix in jv_spec_aod.dat for dust species]]<br />
|- <br />
|Developer name(s) and institution(s):<br />
|<br />
*''jv_spec.dat updates:'' David Ridley (MIT), Randall Martin (Dalhousie)<br />
*''jv_spec_aod.dat fix:'' Gabriele Curci (U. L'Aquila)<br />
|-<br />
|Version, resolution, met fields used:<br />
|v9-02, GEOS-5 (47L), 4x5<br />
|-<br />
|1-month benchmark finished on:<br />
|Fri Sep 13 21:06:31 EDT 2013<br />
|-<br />
|Performance statistics:<br />
|<br />
*Ran on 8 CPUs of bench@titan-08.as.harvard.edu (2.659 GHz x 8 CPU) <br />
*Wall time: 2:37<br />
*Scalability: 7.2660<br />
|-<br />
|Compared to previous benchmark:<br />
|[[#v9-02p|v9-02p]]<br />
|-<br />
|This update will impact:<br>(select all that apply with '''boldface''')<br />
|Advection, BL Mixing, Convection, Met Fields, Dry Dep, Wet Dep, Stratosphere, Anthro Emiss, Biogenic Emiss, Biomass Emiss, '''Photolysis''', Chemistry, Other (please specify):<br />
|-<br />
|Plots may be viewed at:<br />
|<tt>ftp://ftp.as.harvard.edu/pub/exchange/mpayer/1mo_quick_look/v9-02q/</tt><br />
|-bgcolor="#cccccc"<br />
!Metrics<br />
! <br />
|-<br />
|Global mean OH (from log file):<br />
|13.8470394111778 x 10<sup>5</sup> molec/cm<sup>3</sup><br />
|-<br />
|Methyl chloroform lifetime:<br />
|4.4898 years<br />
|-<br />
|Did either of these change by more than 5%?<br />
|No. The mean OH differs by 0.82%, and the MCF lifetimes differ by -0.89%. <br />
|-<br />
|At the SURFACE, list all species that changed by 10% or more:<br />
|NO, ISOP, HNO3, H2O2, MVK, MACR, PMN, PPN, PRPE, N2O5, HNO4, MP, DMS, NH3, NIT, Br2, Br, BrO, HOBr, HBr, BrNO2, BrNO3, MPN, ISOPN, MOBA, HAC, GLYC, MMN, RIP, IEPOX, MAP, NO2, NO3, HNO2, OH, HO2<br />
|-<br />
|Comments on SURFACE differences:<br />
|<br />
*<br />
*Differences in NO, ISOP, MVK, MACR, PMN, ISOPN, MOBA, RIP, and IEPOX are mainly over the oceans or Antarctica. These large ratios can be attributed to small number differences where concentrations are very low. <br />
*Differences in NH3 and NIT can be attributed to [[ISORROPIA_II#Persistence of problem|numerical noise from ISORROPIA]].<br />
|-<br />
|At 500 hPa, list all species that changed by 10% or more:<br />
|NO, ISOP, MVK, MACR, PMN, PRPE, N2O5, HNO4, DMS, NH3, NIT, Br2, Br, BrO, HOBr, HBr, BrNO2, BrNO3, MPN, ISOPN, MOBA, GLYC, MMN, RIP, IEPOX, NO3, HNO2<br />
|-<br />
|Comments on 500 hPa differences:<br />
|<br />
*<br />
*Differences in NO, ISOP, MVK, MACR, PMN, ISOPN, MOBA, RIP, and IEPOX are mainly over the oceans or Antarctica. These large ratios can be attributed to small number differences where concentrations are very low. <br />
*Differences in NH3 and NIT can be attributed to [[ISORROPIA_II#Persistence of problem|numerical noise from ISORROPIA]].<br />
|-<br />
|In the ZONAL MEAN differences, list all species that changed by 10% or more:<br />
|NO, ALK4, ISOP, H2O2, MVK, MACR, PMN, PRPE, C3H8, N2O5, HNO4, DMS, SO4s, NH3, NIT, NITs, Br2, Br, BrO, HOBr, HBr, BrNO2, BrNO3, MPN, ISOPN, MOBA, HAC, GLYC, MMN, RIP, IEPOX, NO2, NO3, HNO2, OH, HO2<br />
|-<br />
|Comments on ZONAL MEAN differences:<br />
|<br />
*<br />
*Differences in NO, ALK4, ISOP, MACR, PMN, C3H8, SO4s, ISOPN, and RIP can be attributed to small number differences where concentrations are very low. <br />
*Differences in NH3, NIT, and NITs can be attributed to [[ISORROPIA_II#Persistence of problem|numerical noise from ISORROPIA]].<br />
|-<br />
|In the EMISSION RATIO maps, list all species that changed by 10% or more:<br />
|None<br />
|-<br />
|Comments on EMISSION RATIO differences:<br />
|<br />
|-<br />
|Additional or summary comments:<br />
|The changes in jv_spec.dat generally reduce AOD and aerosol surface area, in turn increasing OH, and the rest of the species follow. <br />
|<br />
|-bgcolor="#cccccc"<br />
!Approval<br />
!<br />
|-<br />
|Requires further investigation:<br />
|TBD<br />
|- <br />
|Approved by:<br />
|Randall Martin<br />
|-<br />
|Date of approval:<br />
|17 Sep 2013<br />
|}<br />
--[[User:Melissa Payer|Melissa Sulprizio]] 17:28, 13 September 2013 (EDT)<br />
<br />
=== v9-02p ===<br />
<br />
Here is the assessment form for 1-month benchmark simulation '''v9-02p'''.<br />
<br />
{| border=1 cellspacing=0 cellpadding=5<br />
|-bgcolor="#cccccc"<br />
!width="325px"|Description<br />
! <br />
|- <br />
|New features added into GEOS-Chem:<br />
|<br />
*[[Sulfate_aerosols#Cloud_water_pH_for_sulfate_formation|Cloud water pH for sulfate formation]]<br />
*[[Dry_deposition#Error_in_definition_of_RIP_and_IEPOX_drydep_species|Fix molecular weights of RIP and IEPOX used in drydep_mod.F]]<br />
*[[Numerical_issues_discovered_in_GEOS-Chem|Bug fixes to prevent floating-point invalid errors]]<br />
|- <br />
|Developer name(s) and institution(s):<br />
|<br />
*''Cloud pH:'' Becky Alexander (U. Washington) <br />
*''Drydep fix:'' [[GEOS-Chem Support Team]]<br />
*''FPE bug fixes:'' [[GEOS-Chem Support Team]]<br />
|-<br />
|Version, resolution, met fields used:<br />
|v9-02, GEOS-5 (47L), 4x5<br />
|-<br />
|1-month benchmark finished on:<br />
|Tue Sep 10 23:50:47 EDT 2013<br />
|-<br />
|Performance statistics:<br />
|<br />
*Ran on 8 CPUs of bench@titan-09.as.harvard.edu (2.659 GHz x 8 CPU) <br />
*Wall time: 2:36<br />
*Scalability: 7.2645<br />
|-<br />
|Compared to previous benchmark:<br />
|[[#v9-02o|v9-02o]]<br />
|-<br />
|This update will impact:<br>(select all that apply with '''boldface''')<br />
|Advection, BL Mixing, Convection, Met Fields, Dry Dep, Wet Dep, Stratosphere, Anthro Emiss, Biogenic Emiss, Biomass Emiss, Photolysis, '''Chemistry''', Other (please specify):<br />
|-<br />
|Plots may be viewed at:<br />
|<tt>ftp://ftp.as.harvard.edu/pub/exchange/mpayer/1mo_quick_look/v9-02p/</tt><br />
|-bgcolor="#cccccc"<br />
!Metrics<br />
! <br />
|-<br />
|Global mean OH (from log file):<br />
|13.7340615285201 x 10<sup>5</sup> molec/cm<sup>3</sup><br />
|-<br />
|Methyl chloroform lifetime:<br />
|4.5300 years<br />
|-<br />
|Did either of these change by more than 5%?<br />
|No. The mean OH differs by -0.12%, and the MCF lifetimes differ by 0.17%. <br />
|-<br />
|At the SURFACE, list all species that changed by 10% or more:<br />
|ISOP, HNO3, H2O2, MVK, MACR, PMN, N2O5, HNO4, DMS, SO2, SO4, SO4s, NH3, NH4, NIT, NITs, Br2, Br, BrO, HOBr, HBr, BrNO2, BrNO3, ISOPN, MOBA, HAC, GLYC, RIP, IEPOX, NO3, HNO2, HO2<br />
|-<br />
|Comments on SURFACE differences:<br />
|<br />
*Differences in SO2 and SO4 over the oceans are related to enhanced reaction rates of SO2 by O3 related to increased cloud pH due to alkaline sea salt aerosol.<br />
*Increased SO4 over the oceans impacts the gas-particle partitioning of NH3/NH4 and HNO3/NIT. Increased aerosol acidity (due to increased SO4) increases NH4 (while decreasing NH3) and increases HNO3 (while decreasing NIT).<br />
*Increased SO4 aerosol also increases the rate of N2O5 hydrolysis leading to lower N2O5. This should also contribute to higher total nitrate (HNO3 + NIT).<br />
*Increased in-cloud oxidation of SO2 by O3 in the MBL due to higher cloud pH will decrease the other SO2 oxidation pathways. This is shown in lower SO4S due to decreases in heterogeneous oxidation of SO2 on the surface of sea salt aerosol. Since oxidation of SO2 and condensation of HNO3 compete for available sea salt aerosol alkalinity, lower SO4S results in higher NITS.<br />
*Small increases in H2O2 result from less SO2 oxidation by H2O2 in favor of oxidation by O3 at the higher cloud pH in the MBL.<br />
*Differences in ISOP, HNO3, MVK, MACR, PMN, N2O5, Br2, Br, BrO, HOBr, HBr, BrNO2, BrNO3, ISOPN, MOBA, GLYC, RIP, IEPOX are mainly over the oceans or Antarctica. These large ratios can be attributed to small number differences where concentrations are very low.<br />
*Differences in NH3, NH4, NIT, NITs can be attributed to [[ISORROPIA_II#Persistence of problem|numerical noise from ISORROPIA]].<br />
|-<br />
|At 500 hPa, list all species that changed by 10% or more:<br />
|NO, ISOP, MVK, MACR, PMN, DMS, SO2, SO4, SO4s, NH3, NIT, NITs, ISOPN, MOBA, HAC, GLYC, RIP, IEPOX<br />
|-<br />
|Comments on 500 hPa differences:<br />
|<br />
*Differences in SO2, SO4, NH3, SO4s, NIT and NITs are due due to the same processes described for the surface. <br />
*Differences in NO, ISOP, MVK, MACR, PMN, ISOPN, MOBA, HAC, GLYC, RIP, IEPOX are mainly over the oceans or Antarctica. These large ratios can be attributed to small number differences where concentrations are very low.<br />
*Differences in NH3, NIT, NITs can be attributed to [[ISORROPIA_II#Persistence of problem|numerical noise from ISORROPIA]]. <br />
|-<br />
|In the ZONAL MEAN differences, list all species that changed by 10% or more:<br />
|NO, ISOP, HNO3, H2O2, MVK, MACR, PMN, PRPE, C3H8, N2O5, SO2, SO4, SO4s, NH3, NH4, NIT, NITs, HBr, ISOPN, MOBA, HAC, GLYC, RIP, IEPOX, HNO2 <br />
|-<br />
|Comments on ZONAL MEAN differences:<br />
|<br />
*Differences in SO2, SO4, NH3, NH4, SO4s, H2O2, N2O5, NIT and NITs are due due to the same processes described for the surface. Differences tend to be higher in the southern hemisphere because there is more ocean surface than in the northern hemisphere.<br />
*Differences in NO, ISOP, MVK, MACR, PMN, PRPE, C3H8, ISOPN, MOBA, GLYC, RIP, IEPOX can be attributed to small number differences where concentrations are very low.<br />
*Differences in NH3, NH4, NIT, NITs can be attributed to [[ISORROPIA_II#Persistence of problem|numerical noise from ISORROPIA]].<br />
|-<br />
|In the EMISSION RATIO maps, list all species that changed by 10% or more:<br />
|None<br />
|-<br />
|Comments on EMISSION RATIO differences:<br />
|<br />
|-<br />
|Additional or summary comments:<br />
|<br />
|-bgcolor="#cccccc"<br />
!Approval<br />
!<br />
|-<br />
|Requires further investigation:<br />
|No<br />
|- <br />
|Approved by:<br />
|Becky Alexander<br />
|-<br />
|Date of approval:<br />
|13 Sep 2013<br />
|}<br />
--[[User:Melissa Payer|Melissa Sulprizio]] 16:47, 6 September 2013 (EDT)<br />
<br />
=== v9-02o ===<br />
<br />
Here is the assessment form for 1-month benchmark simulation '''v9-02o'''.<br />
<br />
{| border=1 cellspacing=0 cellpadding=5<br />
|-bgcolor="#cccccc"<br />
!width="325px"|Description<br />
! <br />
|- <br />
|New features added into GEOS-Chem:<br />
|<br />
*[[Secondary_organic_aerosols#SOA_simulation_with_semi-volatile_POA|SOA simulation with semi-volatile POA]]<br />
*[[Rn-Pb-Be_simulation#Non-local_PBL_mixing|Implement non-local PBL mixing in the Rn-Pb-Be simulation]]<br />
*[[TOMAS_aerosol_microphysics#Minor_bug_in_TOMAS_sulfate_emissions|Minor bug fix in TOMAS sulfate emissions]]<br />
*[[GEOS-Chem_v9-02#Bug_in_ND36_diagnostic_when_ship_emissions_are_turned_off|Bug fix in ND36 diagnostic when ship emissions are turned off]]<br />
*[[Debugging with the GEOS-Chem unit tester|Initial modifications for GEOS-Chem Unit Tester]]<br />
|- <br />
|Developer name(s) and institution(s):<br />
|<br />
*''SOA with semi-volatile POA:'' Havala Pye (EPA)<br />
*''Non-local PBL mixing in Rn-Pb-Be simulation:'' Jintai Lin (PKU); [[GEOS-Chem Support Team]]<br />
*''TOMAS bug fix:'' Sal Farina (CSU)<br />
*''ND36 bug fix:'' Yanko Davila (U. Colorado)<br />
*''Modifications for GC Unit Tester:'' [[GEOS-Chem Support Team]]<br />
|-<br />
|Version, resolution, met fields used:<br />
|v9-02, GEOS-5 (47L), 4x5<br />
|-<br />
|1-month benchmark finished on:<br />
|Wed Aug 28 22:40:20 EDT 2013<br />
|-<br />
|Performance statistics:<br />
|<br />
*Ran on 8 CPUs of bench@titan-09.as.harvard.edu (2.659 GHz x 8 CPU) <br />
*Wall time: 2:35<br />
*Scalability: 7.2649<br />
|-<br />
|Compared to previous benchmark:<br />
|[[#v9-02n|v9-02n]]<br />
|-<br />
|This update will impact:<br>(select all that apply with '''boldface''')<br />
|Advection, BL Mixing, Convection, Met Fields, Dry Dep, Wet Dep, Stratosphere, Anthro Emiss, Biogenic Emiss, Biomass Emiss, Photolysis, Chemistry, Other (please specify): '''We expect to see no changes from v9-02n'''<br />
|-<br />
|Plots may be viewed at:<br />
|<tt>ftp://ftp.as.harvard.edu/pub/exchange/mpayer/1mo_quick_look/v9-02o/</tt><br />
|-bgcolor="#cccccc"<br />
!Metrics<br />
! <br />
|-<br />
|Global mean OH (from log file):<br />
|13.7511714559642 x 10<sup>5</sup> molec/cm<sup>3</sup><br />
|-<br />
|Methyl chloroform lifetime:<br />
|4.5225 years<br />
|-<br />
|Did either of these change by more than 5%?<br />
|No. They are identical to the v9-02n values. <br />
|-<br />
|At the SURFACE, list all species that changed by 10% or more:<br />
|None<br />
|-<br />
|Comments on SURFACE differences:<br />
|<br />
|-<br />
|At 500 hPa, list all species that changed by 10% or more:<br />
|None<br />
|-<br />
|Comments on 500 hPa differences:<br />
|<br />
|-<br />
|In the ZONAL MEAN differences, list all species that changed by 10% or more:<br />
|None<br />
|-<br />
|Comments on ZONAL MEAN differences:<br />
|<br />
|-<br />
|In the EMISSION RATIO maps, list all species that changed by 10% or more:<br />
|None<br />
|-<br />
|Comments on EMISSION RATIO differences:<br />
|<br />
|-<br />
|Additional or summary comments:<br />
|<br />
#The v9-02o output is 100% identical to the [[GEOS-Chem_v9-02_benchmark_history#v9-02n|v9-02n]] output. This indicates that the full-chemistry simulation has not been impacted by the updates, bug fixes, and structural changes that we have made in this version.<br />
#Special 1-month benchmark simulations were performed for v9-02n using the [[Secondary organic aerosols#The SOA simulation prior to v9-02|traditional SOA simulation]] and for v9-02o using the [[Secondary organic aerosols#SOA simulation with semi-volatile POA|updated SOA simulation]]. For more information on these simulations, please see [[#v9-02o SOA|this wiki post]].<br />
|-bgcolor="#cccccc"<br />
!Approval<br />
!<br />
|-<br />
|Requires further investigation:<br />
|No<br />
|- <br />
|Approved by:<br />
|Jeff Pierce, Havala Pye<br />
|-<br />
|Date of approval:<br />
|03 Sep 2013<br />
|}<br />
--[[User:Melissa Payer|Melissa Sulprizio]] 16:36, 28 August 2013 (EDT)<br />
<br />
=== v9-02n ===<br />
<br />
Here is the assessment form for 1-month benchmark simulation '''v9-02n'''.<br />
<br />
{| border=1 cellspacing=0 cellpadding=5<br />
|-bgcolor="#cccccc"<br />
!width="325px"|Description<br />
! <br />
|- <br />
|New features added into GEOS-Chem:<br />
|<br />
*[[Aircraft_emissions#MIT_aviation_emissions_inventory|AEIC aircraft emissions inventory]]<br />
|- <br />
|Developer name(s) and institution(s):<br />
|<br />
*Sebastian Eastham (MIT)<br />
*Steven Barrett (MIT)<br />
|-<br />
|Version, resolution, met fields used:<br />
|v9-02, GEOS-5 (47L), 4x5<br />
|-<br />
|1-month benchmark finished on:<br />
|Mon Aug 5 14:53:17 EDT 2013<br />
|-<br />
|Performance statistics:<br />
|<br />
*Ran on 8 CPUs of bench@titan-08.as.harvard.edu (2.659 GHz x 8 CPU) <br />
*Wall time: 2:37<br />
*Scalability: 7.2908<br />
|-<br />
|Compared to previous benchmark:<br />
|[[#v9-02m|v9-02m]]<br />
|-<br />
|This update will impact:<br>(select all that apply with '''boldface''')<br />
|Advection, BL Mixing, Convection, Met Fields, Dry Dep, Wet Dep, Stratosphere, '''Anthro Emiss''', Biogenic Emiss, Biomass Emiss, Photolysis, Chemistry, Other (please specify):<br />
|-<br />
|Plots may be viewed at:<br />
|<tt>ftp://ftp.as.harvard.edu/pub/exchange/mpayer/1mo_quick_look/v9-02n/</tt><br />
|-bgcolor="#cccccc"<br />
!Metrics<br />
! <br />
|-<br />
|Global mean OH (from log file):<br />
|13.7511714559642 x 10<sup>5</sup> molec/cm<sup>3</sup><br />
|-<br />
|Methyl chloroform lifetime:<br />
|4.5225 years<br />
|-<br />
|Did either of these change by more than 5%?<br />
|No. The mean OH differs by 1.1%, and the MCF lifetimes differ by -0.73%. <br />
|-<br />
|At the SURFACE, list all species that changed by 10% or more:<br />
| NO, ISOP, MVK, MACR, PMN, NIT, Br, HBr, BrNO3, MPN, ISPON, MOBA, IEPOX, NO2, NO3, HNO2<br />
|-<br />
|Comments on SURFACE differences:<br />
|<br />
* Changes in Br and NOx species were isolated to a small band in the Antarctic<br />
* Perturbations to hydrocarbon species were mainly isolated to regions where the initial value was very low (e.g. remote ocean)<br />
* NIT delta highly isolated and likely a result of existing issues with aerosol formation<br />
|-<br />
|At 500 hPa, list all species that changed by 10% or more:<br />
| NO, ALK4, ISOP, HNO3, MVK, MACR, PMN, PRPE, N2O5, HNO4, DMS, NH3, NIT, ISOPN, MOBA, GLYC, MMN, RIP, IEPOX, HNO2<br />
|-<br />
|Comments on 500 hPa differences:<br />
|<br />
* Changes in NO isolated to Antarctic<br />
* Large-scale hydrocarbon perturbations, such as for PRPE, due to increase in overall HC loading as aircraft HC emissions are new to the model<br />
* Small-scale, "noisy" HC perturbations result from small absolute changes in regions with low initial values<br />
|-<br />
|In the ZONAL MEAN differences, list all species that changed by 10% or more:<br />
| NO, ISOP, HNO3, H2O2, MVK, MACR, PMN, PRPE, N2O5, HNO4, MP, DMS, SO2, SO4s, NH3, NIT, NITs, BrNO2, BrNO3, MPN, ISOPN, MOBA, HAC, GLYC, MMN, RIP, IEPOX, MAP, NO2, HNO2, OH, HO2<br />
|-<br />
|Comments on ZONAL MEAN differences:<br />
|<br />
* NO, NO2, BrNO2, BrNO3, HNO2, HNO3, HNO4 and N2O5 changes result from new aircraft NOx emissions and are small in absolute terms<br />
* Hydrocarbon changes are either "noisy", occurring in regions with low initial values (i.e. high altitude), or closely follow aircraft flight patterns due to addition of aircraft HC emissions<br />
* Small drop in H2O2, again at high altitude, largely due to increased aerosol activity<br />
* SO2 and DMS perturbations likely result from enhanced aircraft sulfur emission modeling<br />
* NIT and NH3 deltas are also high-altitude and "noisy", likely due to noisy aerosol formation<br />
* NITs and SO4s changes restricted to very high altitude, where small number changes lead to large ratios<br />
* OH and HO2 deltas small and restricted to very high altitude<br />
|-<br />
|In the EMISSION RATIO maps, list all species that changed by 10% or more:<br />
|SO2, NO<br />
|-<br />
|Comments on EMISSION RATIO differences:<br />
|<br />
* New aircraft SO2, NOx emissions at higher resolution than before<br />
* Other new aircraft emissions are not explicitly shown on the emission ratio maps<br />
|-<br />
|Additional or summary comments:<br />
|We are currently emitting NOx as NO, but gridded data for the NO/NO2/HNO2 split emissions are available for aircraft NOx. We should consider implementing the split emissions in a future version.<br />
|-bgcolor="#cccccc"<br />
!Approval<br />
!<br />
|-<br />
|Requires further investigation:<br />
|<br />
* Emission of high-altitude hydrocarbons may result in formation of a stratospheric HC reservoir (see PRPE)<br />
* Stratospheric NITs and SO4s difficult to explain, but are likely due to numerical noise<br />
|- <br />
|Approved by:<br />
|Sebastian Eastham<br />
|-<br />
|Date of approval:<br />
|12 Aug 2013<br />
|}<br />
--[[User:Melissa Payer|Melissa Sulprizio]] 09:36, 31 July 2013 (EDT)<br />
<br />
=== v9-02m ===<br />
<br />
Here is the assessment form for 1-month benchmark simulation '''v9-02m'''.<br />
<br />
{| border=1 cellspacing=0 cellpadding=5<br />
|-bgcolor="#cccccc"<br />
!width="325px"|Description<br />
! <br />
|- <br />
|New features added into GEOS-Chem:<br />
|<br />
*[[Historical_and_Future_Emissions#RCP_future_emission_scenarios |RCP emission scenarios]]<br />
*[[CH4_simulation#Update_CH4_emissions_to_EDGAR_v4.2|EDGAR v4.2 emissions for CH4 simulation]]<br />
*[[Scale factors for anthropogenic emissions|Update annual anthropogenic scale factors through 2010]]<br />
*[[Biomass_burning_emissions#Update_GFED3_emissions_to_2011|Update GFED3 emissions to 2011]]<br />
*[[Photolysis_mechanism#Overhead_TOMS.2FSBUV_merged_O3_columns|Update TOMS overhead O3 columns to 2010]]<br />
*[[GCAP#Fixed_bugs_caused_by_GIGC_edits|Corrected minor bugs for GCAP that were introduced by GIGC edits]]<br />
*[[Anthropogenic_emissions#Prevent_negative_emissions_over_Canada|Prevent negative emissions over Canada]]<br />
|- <br />
|Developer name(s) and institution(s):<br />
|<br />
*''RCP scenarios:'' Chris Holmes (UC Irvine)<br />
*''EDGARv4.2 for CH4 simulation:'' Kevin Wecht (Harvard)<br />
*''Annual scale factors update:'' Aaron van Donkelaar (Dalhousie)<br />
*''GFED3 update:'' Prasad Kasibhatla (Duke)<br />
*''TOMS O3 columns update:'' Jenny Fisher (U. Wollongong)<br />
*''GCAP fixes:'' [[GEOS-Chem Support Team]]<br />
*''Bug fix for Canadian emissions:'' Fabien Paulot (Harvard); Christoph Keller (Harvard)<br />
|-<br />
|Version, resolution, met fields used:<br />
|v9-02, GEOS-5 (47L), 4x5<br />
|-<br />
|1-month benchmark finished on:<br />
|Thu Jul 25 21:14:47 EDT 2013<br />
|-<br />
|Performance statistics:<br />
|<br />
*Ran on 8 CPUs of bench@titan-08.as.harvard.edu (2.659 GHz x 8 CPU) <br />
*Wall time: 2:34<br />
*Scalability: 7.3134<br />
|-<br />
|Compared to previous benchmark:<br />
|[[#v9-02l|v9-02l]]<br />
|-<br />
|This update will impact:<br>(select all that apply with '''boldface''')<br />
|Advection, BL Mixing, Convection, Met Fields, Dry Dep, Wet Dep, Stratosphere, '''Anthro Emiss''', Biogenic Emiss, Biomass Emiss, Photolysis, Chemistry, Other (please specify):<br />
|-<br />
|Plots may be viewed at:<br />
|<tt>ftp://ftp.as.harvard.edu/gcgrid/geos-chem/1mo_benchmarks/v9-02/v9-02m/</tt><br />
|-bgcolor="#cccccc"<br />
!Metrics<br />
! <br />
|-<br />
|Global mean OH (from log file):<br />
|13.6057246332902 x 10<sup>5</sup> molec/cm<sup>3</sup><br />
|-<br />
|Methyl chloroform lifetime:<br />
|4.5559 years<br />
|-<br />
|Did either of these change by more than 5%?<br />
|No. The mean OH differs by -0.047%, and the MCF lifetimes differ by 0.053%.<br />
|-<br />
|At the SURFACE, list all species that changed by 10% or more:<br />
|ISOP, MVK, MACR, PMN, NIT, ISOPN, MOBA, RIP, IEPOX<br />
|-<br />
|Comments on SURFACE differences:<br />
|<br />
*The species listed above show differences mainly over the oceans or Antarctica, where the large ratios can be attributed to small number differences where concentrations are very low.<br />
*Differences in NIT can be attributed to [[ISORROPIA_II#Persistence_of_problem|numerical noise from ISORROPIA]]. <br />
|-<br />
|At 500 hPa, list all species that changed by 10% or more:<br />
|ISOP, MVK, NH3, NIT, ISOPN, MOBA, RIP<br />
|-<br />
|Comments on 500 hPa differences:<br />
|<br />
*The species listed above show differences mainly over the oceans or Antarctica, where the large ratios can be attributed to small number differences where concentrations are very low.<br />
*Differences in NH3 and NIT can be attributed to [[ISORROPIA_II#Persistence_of_problem|numerical noise from ISORROPIA]]. <br />
|-<br />
|In the ZONAL MEAN differences, list all species that changed by 10% or more:<br />
|ALK4, ISOP, MVK, PMN, PRPE, C3H8, NH3, NIT, NITs, BCPO, OCPO, ISOPN, RIP<br />
|-<br />
|Comments on ZONAL MEAN differences:<br />
|<br />
*Differences in most of the species listed above can be attributed to small number differences where concentrations are very low.<br />
*Differences in NH3 and NIT can be attributed to [[ISORROPIA_II#Persistence_of_problem|numerical noise from ISORROPIA]]. <br />
|-<br />
|In the EMISSION RATIO maps, list all species that changed by 10% or more:<br />
|SO2, SO4<br />
|-<br />
|Comments on EMISSION RATIO differences:<br />
|<br />
*The [[Scale factors for anthropogenic emissions|update for annual anthropogenic scale factors]] is responsible for:<br />
**Differences in SO2 anthropogenic emissions over Alaska and SO2 ship emissions along the coasts of US and Canada.<br />
**Differences in SO4 anthropogenic emissions over the continental US and Alaska<br />
|-<br />
|Additional or summary comments:<br />
|<br />
|-bgcolor="#cccccc"<br />
!Approval<br />
!<br />
|-<br />
|Requires further investigation:<br />
|No<br />
|- <br />
|Approved:<br />
|Yes<br />
|-<br />
|Date of approval:<br />
|30 Jul 2013<br />
|}<br />
--[[User:Melissa Payer|Melissa Sulprizio]] 10:25, 24 July 2013 (EDT)<br />
<br />
=== v9-02l ===<br />
<br />
Here is the assessment form for 1-month benchmark simulation '''v9-02l'''.<br />
<br />
{| border=1 cellspacing=0 cellpadding=5<br />
|-bgcolor="#cccccc"<br />
!width="325px"|Description<br />
! <br />
|- <br />
|New features added into GEOS-Chem:<br />
|<br />
*[[EPA/NEI05 North American emissions#Updated NH3 seasonal scaling factors in v9-02|Updated NH3 seasonal scaling factors over the US]]<br />
*[[Anthropogenic_emissions#CAC|Updated Canadian NH3 inventory]]<br />
*[[Wet_deposition#Bug_in_Henry.27s_constant|Fix bug in wet deposition Henry's constant]]<br />
*[[Acetone#DRYACET_is_missing_from_globchem.dat|Add DRYACET to globchem.dat]]<br />
*[[GEOS-Chem v9-02#Bug fixes in biofuel_mod.F and emfossil.F|Fix diurnal NOx scale factors]]<br />
*[[GEOS-Chem v9-02#Bug fixes in biofuel_mod.F and emfossil.F|Fix double counting of biofuels over Mexico, Canada, and Europe]]<br />
*[[Biomass_burning_emissions#Bug_fix_for_3-hourly_GFED3_emissions|Bug fix for 3-hourly GFED3 emissions]]<br />
*[[Regridding_in_GEOS-Chem#Bug_in_grid_mod.F90|Bug fix in grid_mod.F90]]<br />
*[[Scale factors for anthropogenic emissions#Bug fix for anthropogenic scaling factors for years 2006 and later|Bug fix for anthropogenic scaling factors for years 2006 and later]]<br />
*[[Ship_emissions#Bugs_in_ship_emissions_and_non-local_PBL_mixing|Correct additional bugs in ship emissions w/ non-local PBL mixing]]<br />
*[[Ship emissions#Bug in ship CO emissions|Bug fix for ship CO emissions]]<br />
*[[Volcanic_SO2_emissions_from_Aerocom#Typo_in_VOLCPRESS_definition|Fix typo in VOLCPRESS definition]]<br />
*[[Passing array arguments efficiently in GEOS-Chem|Eliminate several more array temporaries]]<br />
*[[#Bug fixes in day-of-week computation|Bug fixes in day-of-week computation]]<br />
*[[#Bug fixes in diag48_mod.F|Bug fixes in diag48_mod.F]]<br />
*[[Aerosol-only_simulation#Emissions_not_included_when_using_non-local_PBL_mixing_scheme|Bug fix in emissions for offline aerosol simulation]]<br />
|- <br />
|Developer name(s) and institution(s):<br />
|<br />
*''NH3 seasonal scaling:'' Lin Zhang (Peking University)<br />
*''Updated CAC NH3:'' Wai-Ho Lo (Dalhousie)<br />
*''Wetdep fix:'' Fabien Paulot (Harvard)<br />
*''DRYACET fix:'' Emily Fischer (Harvard)<br />
*''Diurnal NOx scale factor fix:'' Christoph Keller (Harvard)<br />
*''Double counting of biofuels fix:'' Christoph Keller (Harvard)<br />
*''3-hr GFED3 fix:'' Christoph Keller (Harvard)<br />
*''Fix in grid_mod.F90:'' Christoph Keller (Harvard)<br />
*''Scale factor fix:'' Jenny Fisher (U. Wollongong)<br />
*''Ship emission fixes:'' Chris Holmes (UC Irvine)<br />
*''Ship CO fix:'' Chris Holmes (UC Irvine)<br />
*''VOLCPRESS fix:'' Thibaud Thonat (U. Edinburgh)<br />
*''Removal of array temporaries:'' [[GEOS-Chem Support Team]]<br />
*''Day-of-week fix:'' [[GEOS-Chem Support Team]]<br />
*''Fixes in diag48_mod.F:'' Jenny Fisher (U. Wollongong)<br />
*''Offline aerosol simulation fix:'' [[GEOS-Chem Support Team]]<br />
|-<br />
|Version, resolution, met fields used:<br />
|v9-02, GEOS-5 (47L), 4x5<br />
|-<br />
|1-month benchmark finished on:<br />
|Tue Jun 18 20:40:16 EDT 2013<br />
|-<br />
|Performance statistics:<br />
|<br />
*Ran on 8 CPUs of bench@titan-10.as.harvard.edu (2.659 GHz x 8 CPU) <br />
*Wall time: 2:35<br />
*Scalability: 7.3577<br />
|-<br />
|Compared to previous benchmark:<br />
|[[#v9-02k|v9-02k]]<br />
|-<br />
|This update will impact:<br>(select all that apply with '''boldface''')<br />
|Advection, BL Mixing, Convection, Met Fields, '''Dry Dep''', '''Wet Dep''', Stratosphere, '''Anthro Emiss''', Biogenic Emiss, Biomass Emiss, Photolysis, Chemistry, Other (please specify):<br />
|-<br />
|Plots may be viewed at:<br />
|<tt>ftp://ftp.as.harvard.edu/gcgrid/geos-chem/1mo_benchmarks/v9-02/v9-02l/</tt><br />
|-bgcolor="#cccccc"<br />
!Metrics<br />
! <br />
|-<br />
|Global mean OH (from log file):<br />
|13.6120550574916 x 10<sup>5</sup> molec/cm<sup>3</sup><br />
|-<br />
|Methyl chloroform lifetime:<br />
|4.5535 years<br />
|-<br />
|Did either of these change by more than 5%?<br />
|No. The mean OH differs by 1.74%, and the MCF lifetimes differ by -2.29%.<br />
|-<br />
|At the SURFACE, list all species that changed by 10% or more:<br />
|NO, O3, PAN, ALK4, ISOP, HNO3, H2O2, MEK, ALD2, RCHO, MVK, MACR, PMN, PPN, R4N2, PRPE, C3H8, CH2O, C2H6, N2O5, HNO4, MP, DMS, SO2, SO4, SO4s, MSA, NH3, NH4, NIT, NITs, Br2, Br, BrO, HOBr, HBr, BrNO2, BrNO3, ISOPN, MOBA, PROPNN, HAC, GLYC, MMN, RIP, IEPOX, MAP, NO2, NO3, HNO2, OH, HO2<br />
|-<br />
|Comments on SURFACE differences:<br />
|<br />
*Many biogenic species, as well as Bromine species, show differences over the oceans at the surface. This is most likely caused by the [[Ship_emissions#Bugs_in_ship_emissions_and_non-local_PBL_mixing|bug fix for PARANOX ship plume model when using non-local PBL mixing]].<br />
*There is a decrease in NH3 over Canada. This is due to the [[Anthropogenic_emissions#CAC|updated Canadian NH3 emissions inventory]].<br />
*Christoph Keller wrote: The small ozone changes over the eastern US and eastern China look as expected from [[GEOS-Chem v9-02#Bug fixes in biofuel mod.F and emfossil.F|the diurnal scaling factor fix]]. The changes are larger in the free troposphere, though, which doesn't show up in the benchmark plots.<br />
|-<br />
|At 500 hPa, list all species that changed by 10% or more:<br />
|NO, ISOP, HNO3, MVK, MACR, PMN, PRPE, N2O5, HNO4, MP, DMS, SO2, MSA, NH3, NH4, NIT, NITs, Br, HOBr, BrNO2, BrNO3, CH2Br2, CH3Br, MPN, ISOPN, MOBA, PROPNN, HAC, GLYC, MMN, RIP, IEPOX, NO2, NO3, HNO2, OH<br />
|-<br />
|Comments on 500 hPa differences:<br />
|<br />
*Some species only have a few grid boxes having significant differences at 500 hPa.<br />
|-<br />
|In the ZONAL MEAN differences, list all species that changed by 10% or more:<br />
|NO, O3, PAN, CO, ALK4, ISOP, HNO3, H2O2, ALD2, RCHO, PPN, R4N2, PRPE, C3H8, CH2O, C2H6, N2O5, HNO4, MP, DMS, SO2, SO4, SO4s, MSA, NH3, Br2, Br, BrO, HOBr, HBr, BrNO2, BrNO3, CHBr3, HAC, GLYC, MMN, RIP, IEPOX, MAP, NO2, NO3, HNO2, OH, HO2<br />
|-<br />
|Comments on ZONAL MEAN differences:<br />
|<br />
*The following species have percent differences larger than 10%, but very small absolute differences: NO, O3, PAN, ALK4, ISOP, ALD2, RCHO, MVK, MACR, PMN, R4N2, C3H8, CH2O, C2H6, N2O5, SO2, SO4, SO4s, MSA, NH3, NH4, NIT, NITs, Br2, Br, BrO, HOBr, HBr, BrNO2, BrNO3, CHBr3, MPN, MPN, ISOPN, PROPPNN, GLYC, IEPOX, NO2, NO3, HNO2, and OH.<br />
|-<br />
|In the EMISSION RATIO maps, list all species that changed by 10% or more:<br />
|<br />
#anthropogenic CO (along coastlines and over China)<br />
#anthropogenic NH3 (over Canada)<br />
#anthropogenic NO (mostly over oceans)<br />
#anthropogenic SO2 and SO4 (over China)<br />
#lightning NO (slight decrease over Russia)<br />
|-<br />
|Comments on EMISSION RATIO differences:<br />
|<br />
#The differences in anthropogenic CO over oceans are caused by the [[Ship emissions#Bug in ship CO emissions|bug fix for ship CO emissions]].<br />
#The differences in anthropogenic NH3 are caused by the [[Anthropogenic_emissions#CAC|updated Canadian NH3 emissions inventory]].<br />
#*Wai-Ho Lo wrote: In my old report, it shows lower emission for the new CAC NH3 emission for Canada in Alberta. The rest of the country barely has any NH3 emission to begin with so the ratio could be unreliable. The benchmark test ratios seems correct. <br />
#*The [[EPA/NEI05_North_American_emissions#Updated_NH3_seasonal_scaling_factors_in_v9-02|updates of the US NH3 emission seasonality]] mostly increase NH3 emissions in spring; the change in July (the benchmark month) is minor (<1%). In the previous code, the seasonal scaling factors are further scaled to the August value: SCALE(ThisMonth)/SCALE(August). Now we do not scale it for NH3.<br />
#The differences in anthropogenic NO over oceans are caused by the fix for [[Ship_emissions#Bugs_in_ship_emissions_and_non-local_PBL_mixing|bug fix for PARANOX ship plume model when using non-local PBL mixing]]. <br />
#*The NO emissions ratio over oceans should be 3.3, but the colorbar saturates at 2.0. <br />
#*There are small, but non-zero ship emissions almost everywhere over the ice-free oceans. <br />
#*The ICOADS-AMVER inventory uses real ship positions reported via GPS transponders.<br />
#The decrease in CO, SO2, and SO4 emissions over China can be attributed to the [[Scale factors for anthropogenic emissions#Bug fix for anthropogenic scaling factors for years 2006 and later|bug fix for anthropogenic scaling factors for years 2006 and later]]. The base year for Streets emissions in the simulation is 2006, so these emissions are affected by the fix for annual scaling factors.<br />
#About the decrease in lightning NO over Russia, Chris Holmes writes:<br />
#*A small portion (1-3%) of lightning and aircraft NOx emissions would occur in the stratosphere, but this is not allowed in routine <tt>setemis.F</tt>. Now, these stratospheric emissions are also excluded from the ND32 diagnostics (NOx sources).<br />
|-<br />
|Additional or summary comments:<br />
|<br />
#[[GEOS-Chem_v9-02_benchmark_history#Bug_fixes_in_day-of-week_computation|The computation of the day of week w/r/t local time]] and the [[GEOS-Chem_v9-02#Bug_fixes_in_biofuel_mod.F_and_emfossil.F|computation of diurnal NOx scale factors w/r/t local time]] may change the emissions totals slightly, but not to the 10% level. The base emissions remain the same, but the time of day used to scale emissions will now differ from Greenwich Mean Time (GMT). <br />
#*For example, the EPA/NEI US emissions specify "weekday" or "weekend" emissions. In versions prior to v9-02l, the day of week was computed w/r/t GMT instead of local times. Since the local time in the USA lags 5-8 hours behind GMT, this means that we were transitioning from "weekday" to "weekend" 5-8 hours sooner than we should have been. This is now corrected.<br />
#The fixes to remove array temporaries do not change any scientific results.<br />
#Rigorous tests were performed to ensure that we obtained identical results when OpenMP parallelization was turned on and off. This indicates that we did not introduce any parallelization errors while adding these updates to GEOS-Chem.<br />
<br />
|-bgcolor="#cccccc"<br />
!Approval<br />
!<br />
|-<br />
|Requires further investigation:<br />
|No<br />
|- <br />
|Approved by:<br />
|Jintai Lin, Chris Holmes, Lin Zhang, Jenny Fischer, Christoph Keller, Wai-Ho Lo<br />
|-<br />
|Date of approval:<br />
|26 Jun 2013<br />
|}<br />
--[[User:Melissa Payer|Melissa Payer]] 16:48, 26 June 2013 (EDT)<br />
<br />
=== v9-02k ===<br />
<br />
Here is the assessment form for 1-month benchmark simulation '''v9-02k'''.<br />
<br />
{| border=1 cellspacing=0 cellpadding=5<br />
|-bgcolor="#cccccc"<br />
!width="325px"|Description<br />
! <br />
|- <br />
|New features added into GEOS-Chem:<br />
|<br />
*[[TOMAS aerosol microphysics#Update April 2013|Inline the latest source code modifications updates for the TOMAS microphysics package into GEOS-Chem]]<br />
*[[Grid-independent_GEOS-Chem#Merging_GIGC_code_into_the_standard_GEOS-Chem|Additional modifications to enable GEOS-Chem to run within the GEOS-5 GCM]]<br />
*[[Mercury#GAMAP_can.27t_read_v9-01-03_output_for_Hg|Streamlining of the code in GeosCore/mercury_mod.F]]<br />
*[[Passing array arguments efficiently in GEOS-Chem|Rewriting inefficient subroutine calls to avoid wasting memory and CPU cycles]]<br />
|- <br />
|Developer name(s) and institution(s):<br />
|<br />
*''TOMAS updates:'' Sal Farina (CSU)<br />
*''Grid-independent updates:'' [[GEOS-Chem Support Team]]<br />
*''Hg updates:'' Chris Holmes (UC Irvine)<br />
*''Rewriting inefficient subroutine calls'': [[GEOS-Chem Support Team]]<br />
|-<br />
|Version, resolution, met fields used:<br />
|v9-02, GEOS-5 (47L), 4x5<br />
|-<br />
|1-month benchmark finished on:<br />
|Thu Jun 6 14:38:12 EDT 2013<br />
|-<br />
|Performance statistics:<br />
|<br />
*Ran on 8 CPUs of bench@titan-11.as.harvard.edu (2.659 GHz x 8 CPU) <br />
*Wall time: 2:30<br />
**NOTE: 1/2 hour faster than v9-02j<br />
*Scalability: 7.4285<br />
**NOTE: Scales much better than v9-02j (6.2)<br />
|-<br />
|Compared to previous benchmark:<br />
|[[#v9-02j|v9-02j]]<br />
|-<br />
|This update will impact:<br>(select all that apply with '''boldface''')<br />
|Advection, BL Mixing, Convection, Met Fields, Dry Dep, Wet Dep, Stratosphere, Anthro Emiss, Biogenic Emiss, Biomass Emiss, Photolysis, Chemistry, Other (please specify): '''We expect to see no changes from v9-02j'''<br />
|-<br />
|Plots may be viewed at:<br />
|<tt>ftp://ftp.as.harvard.edu/gcgrid/geos-chem/1mo_benchmarks/v9-02/v9-02k/</tt><br />
|-bgcolor="#cccccc"<br />
!Metrics<br />
! <br />
|-<br />
|Global mean OH (from log file):<br />
|13.3796050179548 x 10<sup>5</sup> molec/cm<sup>3</sup><br />
|-<br />
|Methyl chloroform lifetime:<br />
|4.6600 years<br />
|-<br />
|Did either of these change by more than 5%?<br />
|No. They are identical to the v9-02j values.<br />
|-<br />
|At the SURFACE, list all species that changed by 10% or more:<br />
|None<br />
|-<br />
|Comments on SURFACE differences:<br />
|<br />
|-<br />
|At 500 hPa, list all species that changed by 10% or more:<br />
|None<br />
|-<br />
|Comments on 500 hPa differences:<br />
|<br />
|-<br />
|In the ZONAL MEAN differences, list all species that changed by 10% or more:<br />
|None<br />
|-<br />
|Comments on ZONAL MEAN differences:<br />
|<br />
|-<br />
|In the EMISSION RATIO maps, list all species that changed by 10% or more:<br />
|None<br />
|-<br />
|Comments on EMISSION RATIO differences:<br />
|<br />
|-<br />
|Additional or summary comments:<br />
|<br />
#The v9-02k output file (aka <tt>ctm.bpch.v9-02k</tt>) is 100% binary identical to the [[#v9-02j|v9-02j]] output file (<tt>ctm.bpch.v9-02j</tt>). This indicates that the full-chemistry simulation in v9-02k has not been impacted by the structural changes that we have made.<br />
#In v9-02k, we have segregated all of the places where GEOS-Chem interacts with TOMAS. If TOMAS is used, then these sections of code are activated; otherwise they are ignored. TOMAS was not turned on during the v9-02k 1-month benchmark simulation. Sal Farina will continue to develop and validate the TOMAS simulation in GEOS-Chem.<br />
#A separate Hg benchmark simulation (1-year) is being performed by Team Hg. Results are forthcoming. Because we have obtained identical results in the 1-month full-chemistry benchmarks for v9-02k and [[#v9-02j|v9-02j]], we recommend that v9-02k be approved immediately.. This will allow the SEAC4RS Team to adopt v9-02k as their base code. We feel that further fixes to the Hg simulation can be added into the next benchmark (v9-02l) if necessary.<br />
#'''''IMPORTANT NOTE:''''' v9-02k scales much better than previous versions. We have shaved 1/2 hour per model month off of the wall clock time at 4&deg; x 5&deg; resolution. This translates to a speedup of 6 hours per model year at 4&deg; x 5&deg;. We attribute this speedup to our [[Passing_array_arguments_efficiently_in_GEOS-Chem|rewriting of inefficient subroutine calls]]. We also anticipate that GEOS-Chem will scale better at 2&deg; x 2.5&deg; global resolution, as well as for all nested grids (0.5&deg; x 0.666&deg; and 0.25&deg; x 0.3125&deg;).<br />
<br />
|-bgcolor="#cccccc"<br />
!Approval<br />
!<br />
|-<br />
|Requires further investigation:<br />
|<br />
*''Full-chemistry simulation'': NO<br />
*''Hg simulation'': We shall ask "Team Hg" to review the 1-year Hg benchmark when it is completed.<br />
|- <br />
|Approved by:<br />
|Bob Y.<br />
|-<br />
|Date of approval:<br />
|07 Jun 2013<br />
|}<br />
<br />
--[[User:Bmy|Bob Y.]] 10:58, 7 June 2013 (EDT)<br />
<br />
=== v9-02j ===<br />
<br />
Here is the assessment form for 1-month benchmark simulation '''v9-02j'''.<br />
<br />
{| border=1 cellspacing=0 cellpadding=5<br />
|-bgcolor="#cccccc"<br />
!width="325px"|Description<br />
! <br />
|- <br />
|New features added into GEOS-Chem:<br />
|<br />
*[[NOx-Ox-HC-aerosol#Improved_HO2_uptake|Improved HO2 uptake by aerosol]]<br />
|- <br />
|Developer name(s) and institution(s):<br />
|<br />
*Jingqiu Mao (NOAA/GFDL)<br />
|-<br />
|Version, resolution, met fields used:<br />
|v9-02, GEOS-5 (47L), 4x5<br />
|-<br />
|1-month benchmark finished on:<br />
|Fri May 24 10:41:55 EDT 2013<br />
|-<br />
|Performance statistics:<br />
|<br />
*Ran on 8 CPUs of bench@titan-11.as.harvard.edu (2.659 GHz x 8 CPU) <br />
*Wall time: 3:05<br />
*Scalability: 6.2866<br />
|-<br />
|Compared to previous benchmark:<br />
|[[#v9-02i|v9-02i]]<br />
|-<br />
|This update will impact:<br>(select all that apply with '''boldface''')<br />
|Advection, BL Mixing, Convection, Met Fields, Dry Dep, Wet Dep, Stratosphere, Anthro Emiss, Biogenic Emiss, Biomass Emiss, Photolysis, '''Chemistry''', Other (please specify):<br />
|-<br />
|Plots may be viewed at:<br />
|<tt>ftp://ftp.as.harvard.edu/gcgrid/geos-chem/1mo_benchmarks/v9-02/v9-02j/</tt><br />
|-bgcolor="#cccccc"<br />
!Metrics<br />
! <br />
|-<br />
|Global mean OH (from log file):<br />
|13.3796050179548 x 10<sup>5</sup> molec/cm<sup>3</sup><br />
|-<br />
|Methyl chloroform lifetime:<br />
|4.6600 years<br />
|-<br />
|Did either of these change by more than 5%?<br />
|No. The mean OH differs by -1.22%, and the MCF lifetimes differ by 2.19%. <br />
|-<br />
|At the SURFACE, list all species that changed by 10% or more:<br />
|NO, O3, PAN, ALK4, ISOP, HNO3, H2O2, MEK, ALD2, RCHO, MVK, MACR, PMN, PPN, R4N2, PRPE, C3H8, CH2O, C2H6, N2O5, HNO4, MP, DMS, SO2, SO4, SO4s, NH3, NH4, NIT, Br2, Br, BrO, HOBr, HBr, BrNO2, BrNO3, MPN, ISOPN, MOBA, PROPNN, HAC, GLYC, MMN, RIP, IEPOX, MAP, NO2, NO3, HNO2, OH, HO2<br />
|-<br />
|Comments on SURFACE differences:<br />
|mostly driven by the change in OH.<br />
|-<br />
|At 500 hPa, list all species that changed by 10% or more:<br />
|NO, ALK4, ISOP, H2O2, ALD2, RCHO, MVK, MACR, PMN, PPN, R4N2, PRPE, C3H8, N2O5, HNO4, DMS, SO2, SO4s, NH3, NIT, Br2, Br, BrO, BrNO3, ISOPN, MOBA, PROPNN, HAC, GLYC, MMN, RIP, IEPOX, MAP, NO2, NO3, HNO2, OH, HO2<br />
|-<br />
|Comments on 500 hPa differences:<br />
|mostly driven by the change in OH.<br />
|-<br />
|In the ZONAL MEAN differences, list all species that changed by 10% or more:<br />
|NO, PAN, ALK4, ISOP, H2O2, MEK, ALD2, RCHO, MVK, MACR, PMN, PPN, R4N2, PRPE, C3H8, CH2O, N2O5, HNO4, MP, DMS, SO2, SO4, SO4s, NH3, NIT, NITs, Br2, Br, BrO, HOBr, HBr, BrNO2, BrNO3, MPN, ISOPN, MOBA, PROPNN, HAC, GLYC, MMN, RIP, IEPOX, MAP, NO2, NO3, HNO2, OH, HO2<br />
|-<br />
|Comments on ZONAL MEAN differences:<br />
|mostly driven by the change in OH.<br />
|-<br />
|In the EMISSION RATIO maps, list all species that changed by 10% or more:<br />
|N/A<br />
|-<br />
|Comments on EMISSION RATIO differences:<br />
|N/A<br />
|-<br />
|Additional or summary comments:<br />
|We recommend gamma_HO2 = 0.2 (producing H2O) for the standard model, although gamma_HO2 could be potentially high than 0.2.<br />
|-bgcolor="#cccccc"<br />
!Approval<br />
!<br />
|-<br />
|Requires further investigation:<br />
|No<br />
|- <br />
|Approved by:<br />
|Jingqiu Mao<br />
|-<br />
|Date of approval:<br />
|05/28/2013<br />
|}<br />
<br />
--[[User:Melissa Payer|Melissa Payer]] 17:09, 20 May 2013 (EDT)<br />
<br />
=== v9-02i ===<br />
<br />
Here is the assessment form for 1-month benchmark simulation '''v9-02i'''.<br />
<br />
{| border=1 cellspacing=0 cellpadding=5<br />
|-bgcolor="#cccccc"<br />
!width="325px"|Description<br />
! <br />
|- <br />
|New features added into GEOS-Chem:<br />
|<br />
*[[ChemTelecon20111202|Inhibition of N2O5 uptake by nitrate aerosol]]<br />
|- <br />
|Developer name(s) and institution(s):<br />
|<br />
*Lin Zhang (Peking University)<br />
|-<br />
|Version, resolution, met fields used:<br />
|v9-02, GEOS-5 (47L), 4x5<br />
|-<br />
|1-month benchmark finished on:<br />
|Fri May 17 10:16:11 EDT 2013<br />
|-<br />
|Performance statistics:<br />
|<br />
*Ran on 8 CPUs of bench@titan-11.as.harvard.edu (2.659 GHz x 8 CPU) <br />
*Wall time: 3:06<br />
*Scalability: 6.2832<br />
|-<br />
|Compared to previous benchmark:<br />
|[[#v9-02h|v9-02h]]<br />
|-<br />
|This update will impact:<br>(select all that apply with '''boldface''')<br />
|Advection, BL Mixing, Convection, Met Fields, Dry Dep, Wet Dep, Stratosphere, Anthro Emiss, Biogenic Emiss, Biomass Emiss, Photolysis, '''Chemistry''', Other (please specify):<br />
|-<br />
|Plots may be viewed at:<br />
|<tt>ftp://ftp.as.harvard.edu/gcgrid/geos-chem/1mo_benchmarks/v9-02/v9-02i/</tt><br />
|-bgcolor="#cccccc"<br />
!Metrics<br />
! <br />
|-<br />
|Global mean OH (from log file):<br />
|13.5441691420451 x 10<sup>5</sup> molec/cm<sup>3</sup><br />
|-<br />
|Methyl chloroform lifetime:<br />
|4.5603 years<br />
|-<br />
|Did either of these change by more than 5%?<br />
|No. The mean OH differs by 0.23%, and the MCF lifetimes differ by -0.23%. <br />
|-<br />
|At the SURFACE, list all species that changed by 10% or more:<br />
|<br />
|-<br />
|Comments on SURFACE differences:<br />
|<br />
|-<br />
|At 500 hPa, list all species that changed by 10% or more:<br />
|<br />
|-<br />
|Comments on 500 hPa differences:<br />
|<br />
|-<br />
|In the ZONAL MEAN differences, list all species that changed by 10% or more:<br />
|<br />
|-<br />
|Comments on ZONAL MEAN differences:<br />
|<br />
|<br />
|-<br />
|In the EMISSION RATIO maps, list all species that changed by 10% or more:<br />
|<br />
|-<br />
|Comments on EMISSION RATIO differences:<br />
|<br />
|-<br />
|Additional or summary comments:<br />
|<br />
|-bgcolor="#cccccc"<br />
!Approval<br />
!<br />
|-<br />
|Requires further investigation:<br />
|No<br />
|- <br />
|Approved by:<br />
|Lin Zhang, Mat Evans<br />
|-<br />
|Date of approval:<br />
|17 May 2013<br />
|}<br />
<br />
--[[User:Melissa Payer|Melissa Payer]] 10:52, 16 May 2013 (EDT)<br />
<br />
=== v9-02h ===<br />
<br />
Here is the assessment form for 1-month benchmark simulation '''v9-02h'''.<br />
<br />
{| border=1 cellspacing=0 cellpadding=5<br />
|-bgcolor="#cccccc"<br />
!width="325px"|Description<br />
! <br />
|- <br />
|New features added into GEOS-Chem:<br />
|<br />
*[[NOx-Ox-HC-aerosol#Removal of NOx and Ox partitioning|Removal of NOx-Ox partitioning]]<br />
|- <br />
|Developer name(s) and institution(s):<br />
|<br />
*[[GEOS-Chem Support Team]]<br />
|-<br />
|Version, resolution, met fields used:<br />
|v9-02, GEOS-5 (47L), 4x5<br />
|-<br />
|1-month benchmark finished on:<br />
|Fri May 10 12:35:12 EDT 2013<br />
|-<br />
|Performance statistics:<br />
|<br />
*Ran on 8 CPUs of bench@titan-09.as.harvard.edu (2.659 GHz x 8 CPU)<br />
*Wall time: 3:04<br />
*Scalability: 6.2645<br />
|-<br />
|Compared to previous benchmark:<br />
|[[#v9-02g|v9-02g]]<br />
|-<br />
|This update will impact:<br>(select all that apply with '''boldface''')<br />
|Advection, BL Mixing, Convection, Met Fields, Dry Dep, Wet Dep, Stratosphere, Anthro Emiss, Biogenic Emiss, Biomass Emiss, Photolysis, '''Chemistry''', Other (please specify):<br />
|-<br />
|Plots may be viewed at:<br />
|<tt>ftp://ftp.as.harvard.edu/gcgrid/geos-chem/1mo_benchmarks/v9-02/v9-02h/</tt><br />
|-bgcolor="#cccccc"<br />
!Metrics<br />
! <br />
|-<br />
|Global mean OH (from log file):<br />
|13.5130950197591 x 10<sup>5</sup> molec/cm<sup>3</sup><br />
|-<br />
|Methyl chloroform lifetime:<br />
|4.5706 years<br />
|-<br />
|Did either of these change by more than 5%?<br />
|No. The mean OH differs by 0.52%, and the MCF lifetimes differ by -0.93%. <br />
|-<br />
|At the SURFACE, list all species that changed by 10% or more:<br />
|NO/NOx, O3/Ox, ISOP, HNO3, MVK, MACR, PMN, PPN, PRPE, N2O5, HNO4, DMS, NH4, NIT, Br2, Br, BrO, HOBr, HBr, BrNO2, BrNO3, MPN, ISOPN, MOBA, HAC, GLYC, MMN, RIP, IEPOX, OH, HO2<br />
|-<br />
|Comments on SURFACE differences:<br />
|The removal of NOx-Ox partitioning has resulted in less NO with respect to NOx. O3 remains unchanged with respect to Ox, except for in the Antarctic, where O3 is larger than Ox by 3 ppb or less. This change is primarily due to the restart file. A restart file was spun up for the 5 new tracers and combined with the existing benchmark restart file, resulting in slightly different initial conditions for O3 with respect to Ox. The introduction of the new tracers has also caused slight differences in N2O5 over source regions.<br />
<br />
Differences in NH4 and NIT can be attributed to [[ISORROPIA_II#Persistence_of_problem|numerical noise from ISORROPIA]].<br />
<br />
Differences in the remaining species primarily occur over the oceans or over Antarctica and can be attributed to small number differences where concentrations are very low.<br />
|-<br />
|At 500 hPa, list all species that changed by 10% or more:<br />
|NO/NOx, ISOP, MVK, MACR, PMN, PRPE, N2O5, DMS, NH3, NIT, Br, BrO, BrNO3, MPN, ISOPN, MOBA, HAC, GLYC, MMN, RIP, IEPOX, OH, HO2<br />
|-<br />
|Comments on 500 hPa differences:<br />
|The removal of NOx-Ox partitioning has resulted in less NO with respect to NOx.<br />
<br />
Differences in NH3 and NIT can be attributed to [[ISORROPIA_II#Persistence_of_problem|numerical noise from ISORROPIA]].<br />
<br />
Differences in the remaining species primarily occur over the oceans or over Antarctica and can be attributed to small number differences where concentrations are very low.<br />
|-<br />
|In the ZONAL MEAN differences, list all species that changed by 10% or more:<br />
|NO/NOx, O3/Ox, ALK4, ISOP, HNO3, H2O2, MVK, MACR, PMN, PRPE, C3H8, N2O5, HNO4, MP, DMS, SO4s, NH3, NIT, NITs, Br, BrO, HBr, BrNO2, BrNO3, MPN, ISOPN, MOBA, HAC, GLYC, MMN, RIP, IEPOX, MAP, OH, HO2<br />
|-<br />
|Comments on ZONAL MEAN differences:<br />
|Differences in NO/NOx and O3/Ox can be attributed to the removal of NOx-Ox partitioning. <br />
<br />
Differences in NH3 and NIT can be attributed to [[ISORROPIA_II#Persistence_of_problem|numerical noise from ISORROPIA]].<br />
<br />
Differences in the remaining species primarily occur above 200 hPa or near the poles, where concentrations are low and small changes produce large % difference.<br />
|<br />
|-<br />
|In the EMISSION RATIO maps, list all species that changed by 10% or more:<br />
|None<br />
|-<br />
|Comments on EMISSION RATIO differences:<br />
|N/A<br />
|-<br />
|Additional or summary comments:<br />
|Please note that family tracers NOx and Ox have been removed in this version and replaced with tracers NO, O3, NO2, NO3, and HNO2. Therefore, the first two panels on several of the benchmark plots (i.e. differences, ratios, zonal differences) compare NO and O3 from the current version with NOx and Ox from the previous version ([[GEOS-Chem v9-02 benchmark history#v9-02g|v9-02g]]). For concentration maps of the five new tracers, see http://ftp.as.harvard.edu/pub/exchange/mpayer/1mo_quick_look/v9-02h/v9-02h.concentrations.pdf (NO and O3 are on page 1; NO2, NO3, and HNO2 are on page 22).<br />
|-bgcolor="#cccccc"<br />
!Approval<br />
!<br />
|-<br />
|Requires further investigation:<br />
|No<br />
|- <br />
|Approved by:<br />
|Melissa Payer, Jingqiu Mao<br />
|-<br />
|Date of approval:<br />
|15 May 2013<br />
|}<br />
--[[User:Melissa Payer|Melissa Payer]] 16:26, 16 April 2013 (EDT)<br />
<br />
=== v9-02g ===<br />
<br />
Here is the assessment form for 1-month benchmark simulation '''v9-02g'''.<br />
<br />
{| border=1 cellspacing=0 cellpadding=5<br />
|-bgcolor="#cccccc"<br />
!width="325px"|Description<br />
! <br />
|- <br />
|New features added into GEOS-Chem:<br />
|<br />
*[[New_isoprene_scheme|Adopt Paulot isoprene scheme as standard]]<br />
*[[New_isoprene_scheme#Update_One_-_RO2.2BHO2_Reaction_Rate|Fix RO2+HO2 rate constant]]<br />
*[[GEOS-5.7.2 implementation details#Bug fix for declaration of GEOS-5.7.2 PFICU.2C PFLCU.2C PFILSAN.2C PFLLSAN fields|Bug fix for declaration of GEOS-5.7.2 PFICU, PFLCU, PFILSAN, PFLLSAN fields]]<br />
*[[David_Streets_regional_emissions_for_China_and_SE_Asia#Bug_in_EMIS_STREETS_ANTHRO_05x0666|Bug in EMIS_STREETS_ANTHRO_05x0666]]<br />
|- <br />
|Developer name(s) and institution(s):<br />
|<br />
*''Isoprene scheme:'' Fabien Paulot (Harvard), Eloise Marais (Harvard), Jingqiu Mao (NOAA/GFDL), Mat Evans (York)<br />
*''RO2+HO2 rate:'' Fabien Paulot (Harvard)<br />
*''GEOS-5.7.2 fix::'' [[GEOS-Chem Support Team]]<br />
*''Streets fix:'' Jenny Fisher (U. Wollongong)<br />
|-<br />
|Version, resolution, met fields used:<br />
|v9-02, GEOS-5 (47L), 4x5<br />
|-<br />
|1-month benchmark finished on:<br />
|Wed Mar 20 20:11:47 EDT 2013<br />
|-<br />
|Performance statistics:<br />
|<br />
*Ran on 8 CPUs of bench@titan-08.as.harvard.edu (2.659 GHz x 8 CPU) <br />
*Wall time: 2:58<br />
*Scalability: 6.3565<br />
|-<br />
|Compared to previous benchmark:<br />
|[[#v9-02f|v9-02f]]<br />
|-<br />
|This update will impact:<br>(select all that apply with '''boldface''')<br />
|Advection, BL Mixing, Convection, Met Fields, Dry Dep, Wet Dep, Stratosphere, Anthro Emiss, Biogenic Emiss, Biomass Emiss, Photolysis, '''Chemistry''', Other (please specify):<br />
|-<br />
|Plots may be viewed at:<br />
|<tt>ftp://ftp.as.harvard.edu/gcgrid/geos-chem/1mo_benchmarks/v9-02/v9-02g/</tt><br />
|-bgcolor="#cccccc"<br />
!Metrics<br />
! <br />
|-<br />
|Global mean OH (from log file):<br />
|13.4422368196455 x 10<sup>5</sup> molec/cm<sup>3</sup><br />
|-<br />
|Methyl chloroform lifetime:<br />
|4.6134 years<br />
|-<br />
|Did either of these change by more than 5%?<br />
|No. The mean OH differs by 3.73%, and the MCF lifetimes differ by -4.67%.<br />
|-<br />
|At the SURFACE, list all species that changed by 10% or more:<br />
|NOx, Ox, PAN, ALK4, ISOP, HNO3, H2O2, MEK, ALD2, RCHO, MVK, MACR, PMN, PPN, R4N2, PRPE, C3H8, N2O5, HNO4, MP, DMS, MSA, Br2, Br, BrO, HOBr, HBr, BrNO2, BrNO3, MPN, OH<br />
|-<br />
|Comments on SURFACE differences:<br />
|Differences in NOx and Ox are mainly due to the treatment of isoprene nitrates. Higher NOx leads to higher OH in northern mid-latitude. Higher OH in tropics is due to isomerization of RIO2. The changes in other species are mainly due to the changes in OH and NOx.<br />
|-<br />
|At 500 hPa, list all species that changed by 10% or more:<br />
|NOx, PAN, ALK4, ISOP, HNO3, H2O2, MEK, ALD2, RCHO, MVK, MACR, PMN, PPN, R4N2, PRPE, C3H8, N2O5, HNO4, MP, DMS, Br2, Br, BrO, HOBr, HBr, BrNO2, BrNO3, MPN, OH<br />
|-<br />
|Comments on 500 hPa differences:<br />
|Same as surface plots.<br />
|-<br />
|In the ZONAL MEAN differences, list all species that changed by 10% or more:<br />
|NOx, Ox, PAN, ALK4, ISOP, HNO3, H2O2, MEK, ALD2, RCHO, MVK, MACR, PMN, PPN, R4N2, PRPE, C3H8, N2O5, HNO4, MP, DMS, MSA, Br2, Br, BrO, HOBr, HBr, BrNO2, BrNO3, MPN, OH<br />
|-<br />
|Comments on ZONAL MEAN differences:<br />
|Same as surface plots.<br />
|-<br />
|In the EMISSION RATIO maps, list all species that changed by 10% or more:<br />
|No<br />
|-<br />
|Comments on EMISSION RATIO differences:<br />
|N/A<br />
|-<br />
|Additional or summary comments:<br />
|I also increase gamma(NO3) to 0.1, according to recent literature.<br />
|-bgcolor="#cccccc"<br />
!Approval<br />
!<br />
|-<br />
|Requires further investigation:<br />
|TBD<br />
|- <br />
|Approved:<br />
|Jingqiu Mao <br />
|-<br />
|Date of approval:<br />
|03/22/2013<br />
|}<br />
--[[User:Melissa Payer|Melissa Payer]] 12:17, 21 March 2013 (EDT)<br />
<br />
=== v9-02f ===<br />
<br />
Here is the assessment form for 1-month benchmark simulation '''v9-02f'''.<br />
<br />
{| border=1 cellspacing=0 cellpadding=5<br />
|-bgcolor="#cccccc"<br />
!width="325px"|Description<br />
! <br />
|- <br />
|New features added into GEOS-Chem:<br />
|<br />
*[[Updating_standard_chemistry_with_JPL_10-6|Inorganic chemistry updates]]<br />
*[[Methyl peroxy nitrate chemistry|Methyl peroxy nitrate (MPN) chemistry]]<br />
*[[Mercury#Bug_fixes_for_nested_Hg_simulation|Bug fixes for nested Hg simulation]]<br />
|- <br />
|Developer name(s) and institution(s):<br />
|<br />
*''Inorganic chemistry updates:'' Mat Evans (York)<br />
*''MPN chemistry:'' Ellie Browne (UC Berkeley)<br />
*''Nested Hg bug fixes:'' Yanxu Zhang (U. Washington)<br />
|-<br />
|Version, resolution, met fields used:<br />
|v9-02, GEOS-5 (47L), 4x5<br />
|-<br />
|1-month benchmark finished on:<br />
|Wed Jan 30 16:36:48 EST 2013<br />
|-<br />
|Performance statistics:<br />
|<br />
*Ran on 8 CPUs of bench@titan-10.as.harvard.edu (2.659 GHz x 8 CPU) <br />
*Wall time: 2:32<br />
*Scalability: 6.3256<br />
|-<br />
|Compared to previous benchmark:<br />
|[[#v9-02e|v9-02e]]<br />
|-<br />
|This update will impact:<br>(select all that apply with '''boldface''')<br />
|Advection, BL Mixing, Convection, Met Fields, Dry Dep, Wet Dep, Stratosphere, Anthro Emiss, Biogenic Emiss, Biomass Emiss, Photolysis, '''Chemistry''', Other (please specify):<br />
|-<br />
|Plots may be viewed at:<br />
|<tt>ftp://ftp.as.harvard.edu/gcgrid/geos-chem/1mo_benchmarks/v9-02/v9-02f/</tt><br />
|-bgcolor="#cccccc"<br />
!Metrics<br />
! <br />
|-<br />
|Global mean OH (from log file):<br />
|12.9589397348900 x 10<sup>5</sup> molec/cm<sup>3</sup><br />
|-<br />
|Methyl chloroform lifetime:<br />
|4.8396 years<br />
|-<br />
|Did either of these change by more than 5%?<br />
|No<br />
|-<br />
|At the SURFACE, list all species that changed by 10% or more:<br />
|ISOP, MVK, MACR, PMN <br />
<br />
N2O5<br />
<br />
HNO4<br />
<br />
DMS, MSA<br />
<br />
Br, BrO, Other bromine compounds<br />
|-<br />
|Comments on SURFACE differences:<br />
|Isoprene related tracers: Concentrations are changing over remote oceanic regions reflecting changes in the initial oxidation steps of these compounds. <br />
N2O5 changes are again is restricted to remote ocean regions. Changes to the NO3+DMS rate constant have made this faster which will tend to reduce NO3 and N2O5 concentrations in regions where DMS is the dominant VOC<br />
<br />
DMS, MSA Concentrations are changing due to changes in the DMS+OH and DMS+NO3 rate constants. At the surface changes are small and restricted to continental regions. <br />
<br />
Br compounds. These are restricted to the polar regions where concentrations are low and reflects the combination of other changes of longer lived species. The same is the case for HNO3. <br />
|-<br />
|At 500 hPa, list all species that changed by 10% or more:<br />
|NOx<br />
<br />
ISOP, MVK, MACR, PMN<br />
<br />
N2O5<br />
<br />
HNO4<br />
<br />
PRPE<br />
<br />
DMS, MSA<br />
<br />
NIT, NH4<br />
<br />
Br species <br />
|-<br />
|Comments on 500 hPa differences:<br />
|The largest changes here are to the DMS and MSA. This reflects the changes in the DMS+OH and DMS+NO3 oxidation routes which essentially both changes the location of DMS oxidation and the branching ratio of the DMS Oxidation <br />
<br />
isoprene chemistry changes again reflect changes in the primary oxidation of isoprene and the subsquent branching ration<br />
<br />
NIT, NH4 Isoropia seems unstable at cold temperatures and small changes leads to large relative changes in these compounds even though they are at low concentrations. <br />
<br />
N2O5, HNO4, Br species see above. <br />
|-<br />
|In the ZONAL MEAN differences, list all species that changed by 10% or more:<br />
|NOx<br />
<br />
ISOP, MVK, MACR, PMN<br />
<br />
PRPE<br />
<br />
CH2O<br />
<br />
N2O5<br />
<br />
HNO4<br />
<br />
MP<br />
<br />
DMS, MSA, SO2<br />
<br />
Br compounds<br />
|-<br />
|Comments on ZONAL MEAN differences:<br />
|NOx, HNO3, H2O2, CH2O, MP Reflect that changes seen in Browne et al., 2011<br />
<br />
DMS, MSA, SO2 reflect changes in the initial DMS oxidation of DMS+OH and DMS+NO3<br />
<br />
ISOP, MACR, MVK, PMN changes reflect changes in the ISOP oxidation ISOP+OH, O3, NO3<br />
<br />
The N2O5 decrease at ~200 hPa in the zonal mean is also consistent with Browne et al., 2011<br />
|-<br />
|In the EMISSION RATIO maps, list all species that changed by 10% or more:<br />
|No<br />
|-<br />
|Comments on EMISSION RATIO differences:<br />
|N/A<br />
|-<br />
|Additional or summary comments:<br />
|This all seems fine. In general changes are small in absolute concentrations but can be relatively large fractionally. <br />
|-bgcolor="#cccccc"<br />
!Approval<br />
!<br />
|-<br />
|Requires further investigation:<br />
|No<br />
|- <br />
|Approved:<br />
|MJE as long as others are happy. <br />
|-<br />
|Date of approval:<br />
|07 Feb 2013<br />
|}<br />
--[[User:Melissa Payer|Melissa Payer]] 09:31, 1 February 2013 (EST)<br />
<br />
=== v9-02e ===<br />
<br />
Here is the assessment form for 1-month benchmark simulation '''v9-02e'''.<br />
<br />
{| border=1 cellspacing=0 cellpadding=5<br />
|-bgcolor="#cccccc"<br />
!width="325px"|Description<br />
! <br />
|- <br />
|New features added into GEOS-Chem:<br />
|<br />
*[[Regridding_in_GEOS-Chem#Bug_in_regridding_of_anthropogenic_emissions|Bug fix for regridding of anthropogenic emissions (NEI2005, Streets)]]<br />
*[[Regridding_in_GEOS-Chem#Additional_bug_fixes_for_MAP_A2A_regridding_algorithm|Additional bug fixes for MAP_A2A regridding]]<br />
*[[MEGAN_biogenic_emissions#Bug_in_MEGAN_emissions_when_running_with_MERRA_or_GEOS-FP|Bug fix for MEGAN emissions when using MERRA or GEOS-FP]]<br />
|- <br />
|Developer name(s) and institution(s):<br />
|<br />
*''Regridding fixes:'' [[GEOS-Chem Support Team]]<br />
*''MEGAN fix:'' Tzung-May Fu (Peking University)<br />
|-<br />
|Version, resolution, met fields used:<br />
|v9-02, GEOS-5 (47L), 4x5<br />
|-<br />
|1-month benchmark finished on:<br />
|Fri Jan 4 17:01:07 EST 2013<br />
|-<br />
|Performance statistics:<br />
|<br />
*Ran on 8 CPUs of bench@titan-10.as.harvard.edu (2.659 GHz x 8 CPU)<br />
*Wall time: 2:32<br />
*Scalability: 6.3584<br />
|-<br />
|Compared to previous benchmark:<br />
|[[#v9-02d|v9-02d]]<br />
|-<br />
|This update will impact:<br>(select all that apply with '''boldface''')<br />
|Advection, BL Mixing, Convection, Met Fields, Dry Dep, Wet Dep, Stratosphere, '''Anthro Emiss''', Biogenic Emiss, Biomass Emiss, Photolysis, Chemistry, Other (please specify):<br />
|-<br />
|Plots may be viewed at:<br />
|<tt>ftp://ftp.as.harvard.edu/gcgrid/geos-chem/1mo_benchmarks/v9-02/v9-02e/</tt><br />
|-bgcolor="#cccccc"<br />
!Metrics<br />
! <br />
|-<br />
|Global mean OH (from log file):<br />
|12.9399839759816 x 10<sup>5</sup> molec/cm<sup>3</sup><br />
|-<br />
|Methyl chloroform lifetime:<br />
|4.8585 years<br />
|-<br />
|Did either of these change by more than 5%?<br />
|No<br />
|-<br />
|At the SURFACE, list all species that changed by 10% or more:<br />
|ISOP, NIT<br />
|-<br />
|Comments on SURFACE differences:<br />
|Differences are attributed to the [[ISORROPIA_II#Persistence_of_problem|numerical noise issue in ISORROPIA II]].<br />
|-<br />
|At 500 hPa, list all species that changed by 10% or more:<br />
|ISOP, NH3, NIT<br />
|-<br />
|Comments on 500 hPa differences:<br />
|Differences are attributed to the [[ISORROPIA_II#Persistence_of_problem|numerical noise issue in ISORROPIA II]].<br />
|-<br />
|In the ZONAL MEAN differences, list all species that changed by 10% or more:<br />
|ALK4, PMN, PRPE, C3H8, SO4s, NH3, NIT, NITs<br />
|-<br />
|Comments on ZONAL MEAN differences:<br />
|Differences are seen in ALK4, PMN, PRPE, C3H8, SO4s, NH3, and NITs are in locations where concentrations are already very low. These differences can be attributed to numerical noise.<br><br />
Differences in NH3 and NITs are attributed to the [[ISORROPIA_II#Persistence_of_problem|numerical noise issue in ISORROPIA II]].<br />
|-<br />
|In the EMISSION RATIO maps, list all species that changed by 10% or more:<br />
|None<br />
|-<br />
|Comments on EMISSION RATIO differences:<br />
|The [[Regridding_in_GEOS-Chem#Bug_in_regridding_of_anthropogenic_emissions|bug fix for regridding of Streets anthropogenic emissions]] caused CO anthropogenic emissions to change by 0.004 Tg (~0.01%).<br />
|-<br />
|Additional or summary comments:<br />
|<br />
|-bgcolor="#cccccc"<br />
!Approval<br />
!<br />
|-<br />
|Requires further investigation:<br />
|No<br />
|- <br />
|Approved:<br />
|Yes<br />
|-<br />
|Date of approval:<br />
|07 Jan 2013<br />
|}<br />
--[[User:Melissa Payer|Melissa Payer]] 16:01, 7 January 2013 (EST)<br />
<br />
=== v9-02d ===<br />
<br />
Here is the assessment form for 1-month benchmark simulation '''v9-02d'''.<br />
<br />
{| border=1 cellspacing=0 cellpadding=5<br />
|-bgcolor="#cccccc"<br />
!width="325px"|Description<br />
! <br />
|- <br />
|New features added into GEOS-Chem:<br />
|<br />
*[[Grid-Independent_GEOS-Chem:_Chemistry_Component#Activation_of_new_pathways_for_data_flow_and_other_structural_modifications|Grid-independent GEOS-Chem updates: Activation of new data pathways and other structural modifications]]<br />
*[[GEOS-Chem_v9-02#Bug_fix_for_Br2_emissions|Bug fix for Br2 emissions]]<br />
|- <br />
|Developer name(s) and institution(s):<br />
|<br />
*''Grid-Independent updates:'' [[GEOS-Chem Support Team]]<br />
*''Br2 bug fix:'' [[GEOS-Chem Support Team]]<br />
|-<br />
|Version, resolution, met fields used:<br />
|v9-02, GEOS-5 (47L), 4x5<br />
|-<br />
|1-month benchmark finished on:<br />
|Wed Dec 19 09:33:39 EST 2012<br />
|-<br />
|Performance statistics:<br />
|<br />
*Ran on 8 CPUs of bench@titan-08.as.harvard.edu (2.659 GHz x 8 CPU)<br />
*Wall time: 2:32<br />
*Scalability: 6.3638<br />
|-<br />
|Compared to previous benchmark:<br />
|[[#v9-02c|v9-02c]]<br />
|-<br />
|This update will impact:<br>(select all that apply with '''boldface''')<br />
|Advection, BL Mixing, Convection, Met Fields, Dry Dep, Wet Dep, Stratosphere, Anthro Emiss, Biogenic Emiss, Biomass Emiss, Photolysis, Chemistry, Other (please specify): '''We expected to see no changes from v9-02d. We have only made structural modifications but not scientific modifications.'''<br />
|-<br />
|Plots may be viewed at:<br />
|<tt>ftp://ftp.as.harvard.edu/gcgrid/geos-chem/1mo_benchmarks/v9-02/v9-02d/</tt><br />
|-bgcolor="#cccccc"<br />
!Metrics<br />
! <br />
|-<br />
|Global mean OH (from log file):<br />
|12.9397354478399 x 10<sup>5</sup> molec/cm<sup>3</sup><br />
|-<br />
|Methyl chloroform lifetime:<br />
|4.8586 years<br />
|-<br />
|Did either of these change by more than 5%?<br />
|No<br />
|-<br />
|At the SURFACE, list all species that changed by 10% or more:<br />
|NIT<br />
|-<br />
|Comments on SURFACE differences:<br />
|Differences in NIT are attributed to the [[ISORROPIA_II#Persistence_of_problem|numerical noise issue in ISORROPIA II]].<br />
|-<br />
|At 500 hPa, list all species that changed by 10% or more:<br />
|ISOP, NH3, NIT<br />
|-<br />
|Comments on 500 hPa differences:<br />
|Differences are seen in ISOP in locations where concentrations are already very low (i.e. over oceans). These differences are attributed to the [[GEOS-Chem_v9-02#Bug_fix_for_Br2_emissions|bromine bug fix]].<br />
Differences in NH3 and NIT are attributed to the [[ISORROPIA_II#Persistence_of_problem|numerical noise issue in ISORROPIA II]]. <br />
|-<br />
|In the ZONAL MEAN differences, list all species that changed by 10% or more:<br />
|ALK4, ISOP, PRPE, C3H8, SO4s, NH3, NIT, NITs, Br2, <br />
|-<br />
|Comments on ZONAL MEAN differences:<br />
|Differences are seen in ALK4, ISOP, PRPE, C3H8, SO4s, and Br2 are in locations where concentrations are already very low. These differences are attributed to the [[GEOS-Chem_v9-02#Bug_fix_for_Br2_emissions|bromine bug fix]].<br />
Differences in NH3 and NIT are attributed to the [[ISORROPIA_II#Persistence_of_problem|numerical noise issue in ISORROPIA II]]. <br />
|-<br />
|In the EMISSION RATIO maps, list all species that changed by 10% or more:<br />
|None<br />
|-<br />
|Comments on EMISSION RATIO differences:<br />
|<br />
|-<br />
|Additional or summary comments:<br />
|When ISORROPIA is turned off, and when the [[GEOS-Chem_v9-02#Bug_fix_for_Br2_emissions|Bug fix for Br2 emissions]] is also added to [[#v9-02c|v9-02c]], then we obtain identical results between v9-02c and v9-02d. This demonstrates that the structural modifications made for grid independence do not change GEOS-Chem's scientific results. Most of these modifications were made to carry data fields in [[Derived_type_objects_used_by_the_Grid-Independent_GEOS-Chem|derived-type objects]] rather than in module arrays, but the data fields themselves have not changed.<br />
|-bgcolor="#cccccc"<br />
!Approval<br />
!<br />
|-<br />
|Requires further investigation:<br />
|No<br />
|- <br />
|Approved:<br />
|Yes<br />
|-<br />
|Date of approval:<br />
|19 Dec 2012<br />
|}<br />
<br />
--[[User:Bmy|Bob Y.]] 10:39, 19 December 2012 (EST)<br />
<br />
=== v9-02c ===<br />
<br />
Here is the assessment form for 1-month benchmark simulation '''v9-02c'''.<br />
<br />
{| border=1 cellspacing=0 cellpadding=5<br />
|-bgcolor="#cccccc"<br />
!width="325px"|Description<br />
! <br />
|- <br />
|New features added into GEOS-Chem:<br />
|<br />
*[[EPA/NEI05_North_American_emissions|EPA/NEI05 North American Hg emissions]]<br />
*[[Mercury#Nested-grid Hg simulation over North America|Nested-grid Hg simulation]]<br />
*[[Mercury#Streets future Hg emissions|Streets future Hg emissions]]<br />
*[[Mercury#Updated Hg.280.29 oxidation kinetics|Correct Hg simulation to use updated Hg(0) oxidation kinetics]]<br />
*[[Mercury#Capability to use GEOS-Chem Br.2FBrO fields in Hg simulation|Capability to use GEOS-Chem Br/BrO fields in Hg simulation]]<br />
*[[POPs simulation|POPs simulation: Polycyclic aromatic hydrocarbons]]<br />
*[[GEOS-Chem v9-02#Bug fix for updated CAC emissions|Bug fix for updated CAC emissions]]<br />
|- <br />
|Developer name(s) and institution(s):<br />
|<br />
*''NEI05 Hg emissions:'' Yanxu Zhang (U. Washington); Lyatt Jaegl&eacute; (U. Washington)<br />
*''Nested-grid Hg:'' Yanxu Zhang (U. Washington); Lyatt Jaegl&eacute; (U. Washington)<br />
*''Streets future Hg emissions:'' Bess Corbitt (Harvard)<br />
*''Updated Hg(0) oxidation kinetics:'' Bess Corbitt(Harvard); Justin Parrella (Harvard)<br />
*''GEOS-Chem Br/Br fields in Hg simulation:'' Bess Corbitt(Harvard); Justin Parrella (Harvard)<br />
*''POPs simulation:'' Carey Friedman (MIT); Noelle Selin (MIT)<br />
*''CAC bug fix:'' Aaron van Donkelaar (Dalhousie)<br />
|-<br />
|Version, resolution, met fields used:<br />
|v9-02, GEOS-5 (47L), 4x5<br />
|-<br />
|1-month benchmark finished on:<br />
|Wed Nov 28 22:37:00 EST 2012<br />
|-<br />
|Performance statistics:<br />
|<br />
*Ran on 8 CPUs of 8 CPUs of bench@titan-08.as.harvard.edu (2.659 GHz x 8 CPU)<br />
*Wall time: 2:20<br />
*Scalability: 6.5218<br />
|-<br />
|Compared to previous benchmark:<br />
|[[#v9-02b|v9-02b]]<br />
|-<br />
|This update will impact:<br>(select all that apply with '''boldface''')<br />
|Advection, BL Mixing, Convection, Met Fields, Dry Dep, Wet Dep, Stratosphere, Anthro Emiss, Biogenic Emiss, Biomass Emiss, Photolysis, Chemistry, Other (please specify): '''We expect to see no changes from v9-02b'''<br />
|-<br />
|Plots may be viewed at:<br />
|<tt>ftp://ftp.as.harvard.edu/gcgrid/geos-chem/1mo_benchmarks/v9-02/v9-02c/</tt><br />
|-bgcolor="#cccccc"<br />
!Metrics<br />
! <br />
|-<br />
|Global mean OH (from log file):<br />
|12.9398281506753 x 10<sup>5</sup> molec/cm<sup>3</sup><br />
|-<br />
|Methyl chloroform lifetime:<br />
|4.8585 years<br />
|-<br />
|Did either of these change by more than 5%?<br />
|No<br />
|-<br />
|At the SURFACE, list all species that changed by 10% or more:<br />
|None<br />
|-<br />
|Comments on SURFACE differences:<br />
| <br />
|-<br />
|At 500 hPa, list all species that changed by 10% or more:<br />
|None<br />
|-<br />
|Comments on 500 hPa differences:<br />
|<br />
|-<br />
|In the ZONAL MEAN differences, list all species that changed by 10% or more:<br />
|None<br />
|-<br />
|Comments on ZONAL MEAN differences:<br />
|<br />
|-<br />
|In the EMISSION RATIO maps, list all species that changed by 10% or more:<br />
|None<br />
|-<br />
|Comments on EMISSION RATIO differences:<br />
|<br />
|-<br />
|Additional or summary comments:<br />
|<br />
|-bgcolor="#cccccc"<br />
!Approval<br />
!<br />
|-<br />
|Requires further investigation:<br />
|No<br />
|- <br />
|Approved:<br />
|Yes<br />
|-<br />
|Date of approval:<br />
|29 Nov 2012<br />
|}<br />
<br />
--[[User:Melissa Payer|Melissa Payer]] 16:58, 27 November 2012 (EST)<br />
<br />
=== v9-02b ===<br />
<br />
Here is the assessment form for 1-month benchmark simulation '''v9-02b'''.<br />
<br />
{| border=1 cellspacing=0 cellpadding=5<br />
|-bgcolor="#cccccc"<br />
!width="325px"|Description<br />
! <br />
|- <br />
|New features added into GEOS-Chem:<br />
|<br />
*[[Soil_NOx_emissions#Updated_soil_NOx_emissions_algorithm|New soil NOx emission module]]<br />
*[[GEOS-Chem_v9-01-03#Bug_fix_in_hdf_mod.F|Bug fix in hdf_mod.F]]<br />
*[[GEOS-Chem_v9-02#Bug fixes for tagged CO simulation|Bug fixes for tagged CO simulation]]<br />
*[[GEOS-Chem v9-01-03#Bug fix in nei2005_anthro_mod.F|Bug fix for nested simulation in nei2005_anthro_mod.F]]<br />
|- <br />
|Developer name(s) and institution(s):<br />
|<br />
*''Soil NOx:'' Rynda Hudman Kay (EPA); Neil Moore (formerly of Dalhousie); Bram Maasakkers (Eindhoven)<br />
*''Bug fix in hdf_mod.F:'' Sajeev Philip (Dalhousie)<br />
*''Tagged CO simulation fixes:'' Jenny Fisher (Wollongong); [[GEOS-Chem Support Team]]<br />
*''Bug fix in nei_anthro_mod.F:'' Sajeev Philip (Dalhousie)<br />
|-<br />
|Version, resolution, met fields used:<br />
|v9-02, GEOS-5 (47L), 4x5<br />
|-<br />
|1-month benchmark finished on:<br />
|Wed Oct 24 16:10:25 EDT 2012<br />
|-<br />
|Performance statistics:<br />
|<br />
*Ran on 8 CPUs of bench@titan-08.as.harvard.edu (2.659 GHz x 8 CPU)<br />
*Wall time: 2:19<br />
*Scalability: 6.5256<br />
|-<br />
|Compared to previous benchmark:<br />
|[[#v9-02a|v9-02a]]<br />
|-<br />
|This update will impact:<br>(select all that apply with '''boldface''')<br />
|Advection, BL Mixing, Convection, Met Fields, Dry Dep, Wet Dep, Stratosphere, Anthro Emiss, Biogenic Emiss, Biomass Emiss, Photolysis, Chemistry, Other (please specify): '''Soil NOx emissions'''<br />
|-<br />
|Plots may be viewed at:<br />
|<tt>ftp://ftp.as.harvard.edu/gcgrid/geos-chem/1mo_benchmarks/v9-02/v9-02b/</tt><br />
|-bgcolor="#cccccc"<br />
!Metrics<br />
! <br />
|-<br />
|Global mean OH (from log file):<br />
|12.9398281506753 x 10<sup>5</sup> molec/cm<sup>3</sup><br />
|-<br />
|Methyl chloroform lifetime:<br />
|4.8585 years<br />
|-<br />
|Did either of these change by more than 5%?<br />
|No<br />
|-<br />
|At the SURFACE, list all species that changed by 10% or more:<br />
|NOx, Ox, PAN, ALK4, ISOP, HNO3, H2O2, MEk, ALD2, RCHO, MVK, MACR, PMN, PPN, R4N2, PRPE, C3H8, CH2O, N2O5, HNO4, MP, DMS, SO2, SO4, SO4s, MSA, NH3, NH4, NIT, NITs, Br2, Br, BrO, HOBr, HBr, BrNO2, BrNO3, and OH<br />
|-<br />
|Comments on SURFACE differences:<br />
|The changes are as expected. The new soil NOx parameterization significantly increases the NOx concentrations over North America, the southern part of South America, Central Asia and parts of Africa. Decreases occur over the northern part of South America, central Africa and Indonesia. <br />
Other species are influenced by resulting changes in O3 (and consequently OH). However, some of the reported changes are mainly caused by noise since the absolute differences are very close to zero. <br />
|-<br />
|At 500 hPa, list all species that changed by 10% or more:<br />
|NOx, PAN, ALK4, ISOP, HNO3, MEK, ALD2, RCHO, MVK, MACR, PMN, PPN, PRPE, N2O5, HNO4, MP, DMS, SO2, MSA, NH3, NIT, NITs, Br2, Br, BrO, HOBr, HBr, BrNO2, BrNO3, and OH<br />
|-<br />
|Comments on 500 hPa differences:<br />
|See 'Comments on SURFACE differences'<br />
|-<br />
|In the ZONAL MEAN differences, list all species that changed by 10% or more:<br />
|NOx, PAN, ISOP, HNO3, MEK, RCHO, MVK, MACR, PMN, PPN, PRPE, N2O5, HNO4, DMS, SO4s, NH3, NIT, NITs, Br, BrO, BrNO2, BrNO3 and OH. <br />
|-<br />
|Comments on ZONAL MEAN differences:<br />
|See 'Comments on SURFACE differences'<br />
|-<br />
|In the EMISSION RATIO maps, list all species that changed by 10% or more:<br />
|NOx fertilizer emissions and NOx soil emissions<br />
|-<br />
|Comments on EMISSION RATIO differences:<br />
|The NOx soil emissions diagnostic now includes the NOx fertilizer emissions since the emissions related to fertilizer are now calculated using the same procedure as the “regular” soil emissions based on the biome emission coefficients. The soil NOx emission total increases with 0.310 Tg N to 1.028 Tg N for July. <br />
The fertilizer emissions diagnostics gives the soil NOx emissions related to fertilizer use and deposited nitrogen. <br />
|-<br />
|Additional or summary comments:<br />
|The occurring changes are as expected. The benchmark is performed using a new soil NOx restart file which saves per grid cell:<br />
*The Dry Period (hours)<br />
*Pulsing factor (unitless)<br />
*GWET from the previous timestep (unitless)<br />
*N reservoir from dry/wet deposition (ngN/m2)<br />
<br />
The overall changes are in NOx emissions are consistent with those in Hudman et al. (2012) with the additional canopy reduction that Bram added. <br />
The changes in O3 and OH follow the changes in NOx emissions. <br />
<br />
|-bgcolor="#cccccc"<br />
!Approval<br />
!<br />
|-<br />
|Requires further investigation:<br />
|No<br />
|- <br />
|Approved:<br />
|Randall Martin, Bram Maasakkers<br />
|-<br />
|Date of approval:<br />
|29 Oct 2012<br />
|}<br />
<br />
--[[User:Melissa Payer|Melissa Payer]] 13:42, 24 October 2012 (EDT)<br />
<br />
=== v9-02a ===<br />
<br />
Here is the assessment form for 1-month benchmark simulation '''v9-02a'''.<br />
<br />
{| border=1 cellspacing=0 cellpadding=5<br />
|-bgcolor="#cccccc"<br />
!width="325px"|Description<br />
! <br />
|- <br />
|New features added into GEOS-Chem:<br />
|<br />
*[[Boundary layer mixing#Updates on GEOS-5 PBL height .26 diurnal variation of aerosols|Correction for GEOS-5 PBL heights]]<br />
|- <br />
|Developer name(s) and institution(s):<br />
|<br />
*Sajeev Philip (Dalhousie)<br />
|-<br />
|Version, resolution, met fields used:<br />
|v9-02, GEOS-5 (47L), 4x5<br />
|-<br />
|1-month benchmark finished on:<br />
|Fri Oct 12 17:58:19 EDT 2012<br />
|-<br />
|Performance statistics:<br />
|<br />
*Ran on 8 CPUs of bench@titan-10.as.harvard.edu (2.659 GHz x 8 CPU)<br />
*Wall time: 2:19<br />
*Scalability: 6.5621<br />
|-<br />
|Compared to previous benchmark:<br />
|[[GEOS-Chem v9-01-03 benchmark history#v9-01-03-Fix_for_IFORT12|v9-01-03-Fix_for_IFORT12]]<br />
|-<br />
|This update will impact:<br>(select all that apply with '''boldface''')<br />
|Advection, '''BL Mixing''', Convection, Met Fields, Dry Dep, Wet Dep, Stratosphere, Anthro Emiss, Biogenic Emiss, Biomass Emiss, Photolysis, Chemistry, Other (please specify):<br />
|-<br />
|Plots may be viewed at:<br />
|<tt>ftp://ftp.as.harvard.edu/gcgrid/geos-chem/1mo_benchmarks/v9-02/v9-02a/</tt><br />
|-bgcolor="#cccccc"<br />
!Metrics<br />
! <br />
|-<br />
|Global mean OH (from log file):<br />
|12.8727104044567 x 10<sup>5</sup> molec/cm<sup>3</sup><br />
|-<br />
|Methyl chloroform lifetime:<br />
|4.8983 years<br />
|-<br />
|Did either of these change by more than 5%?<br />
|No<br />
|-<br />
|At the SURFACE, list all species that changed by 10% or more:<br />
|All species<br />
|-<br />
|Comments on SURFACE differences:<br />
|Expected. Change in boundary layer mixing <br />
|-<br />
|At 500 hPa, list all species that changed by 10% or more:<br />
|DST4, NITS, NH3, DMS, PRPE, MACR, ISOP (over Ocean) and NIT (over Land)<br />
|-<br />
|Comments on 500 hPa differences:<br />
|Change in boundary layer mixing <br />
|-<br />
|In the ZONAL MEAN differences, list all species that changed by 10% or more:<br />
|All species<br />
|-<br />
|Comments on ZONAL MEAN differences:<br />
|Change in boundary layer mixing <br />
|-<br />
|In the EMISSION RATIO maps, list all species that changed by 10% or more:<br />
|None<br />
|-<br />
|Comments on EMISSION RATIO differences:<br />
|None<br />
|-<br />
|Additional or summary comments:<br />
|None<br />
|-bgcolor="#cccccc"<br />
!Approval<br />
!<br />
|-<br />
|Requires further investigation:<br />
|No<br />
|- <br />
|Approved:<br />
|Yes<br />
|-<br />
|Date of approval:<br />
|Approved 16 Oct 2012<br />
|}<br />
<br />
--[[User:Melissa Payer|Melissa Payer]] 12:00, 15 October 2012 (EDT)<br />
<br />
== Special benchmarks ==<br />
<br />
=== v9-02k Rn-Pb-Be ===<br />
<br />
[mailto:kyu@seas.harvard.edu Karen Yu] performed 1-month [[Rn-Pb-Be simulation|Rn-Pb-Be simulations]] using [[GEOS-Chem v9-02 benchmark history#v9-02k|GEOS-Chem v9-02k]] to evaluate the [[GEOS-FP]] met fields. The simulations were done for the month March 2013, with a 1-moth spinup. For comparison of the Pb-210 and Be-7 budgets to previous versions, please see the following posts on the Rn-Pb-Be simulation wiki page:<br />
#[[Rn-Pb-Be simulation#Budget of Pb210 from 1-year benchmark simulations|Budget of Pb210 from 1-year benchmark simulations]]<br />
#[[Rn-Pb-Be simulation#Budget of Be7 from 1-year benchmark simulations|Budget of Be7 from 1-year benchmark simulations]]<br />
<br />
You may view the benchmark plots for the simulation by pointing your browser to:<br />
<br />
http://ftp.as.harvard.edu/pub/index/exchange/mpayer/1mo_quick_look/v9-02k_RnPbBe/GEOS_FP/output/pdf/<br />
<br />
and<br />
<br />
http://ftp.as.harvard.edu/pub/index/exchange/mpayer/1mo_quick_look/v9-02k_RnPbBe/GEOS_5/output/pdf/<br />
<br />
--[[User:Melissa Payer|Melissa Sulprizio]] 14:42, 13 September 2013 (EDT)<br />
<br />
=== v9-02o SOA ===<br />
<br />
One-month benchmark simulations were performed for [[GEOS-Chem v9-02 benchmark history#v9-02n|v9-02n]] using the [[Secondary organic aerosols#The SOA simulation prior to v9-02|traditional SOA simulation]] and for [[GEOS-Chem v9-02 benchmark history#v9-02o|v9-02o]] using the [[Secondary organic aerosols#SOA simulation with semi-volatile POA|updated SOA simulation]]. The optional semivolatile POA and IVOC features were turned off in the updated SOA simulation. The standard 1-month benchmark plots comparing these simulations were created to evaluate tracers 1-66. The benchmark plots may be viewed at:<br />
<br />
http://ftp.as.harvard.edu/pub/exchange/mpayer/1mo_quick_look/v9-02o_SOA/output/<br />
<br />
'''''Jeff Pierce wrote:'''''<br />
:I've gone through and compared the SOA and SOG tracer concentrations for the simulations using Havala's SOA scheme vs. the old-school SOA scheme. Everything seems to make sense including (1) the partitioning between SOA and SOG for the various volatility bins, (2) the spatial dependence of the terpene-based, isoprene-based and anthro-based SOA, and (3) the magnitude of the concentrations compared to the old-school scheme. There may be some subtleties that Havala may be able to spot, but there was nothing I was able to see that looked odd. There seems to be no impact on the other species in the ratio and difference maps.<br />
<br />
'''''Havala Pye wrote:'''''<br />
:I concur with Jeff. The v9-02o benchmark looks good in terms of magnitude and spatial variability.<br />
<br />
--[[User:Melissa Payer|Melissa Sulprizio]] 14:42, 13 September 2013 (EDT)</div>Rvmartinhttps://wiki.seas.harvard.edu/geos-chem/index.php?title=GEOS-Chem_v9-02_benchmark_history&diff=11556GEOS-Chem v9-02 benchmark history2012-10-29T12:07:03Z<p>Rvmartin: /* v9-02b */</p>
<hr />
<div>On this page we have posted complete information about all benchmark simulations (both 1-month and 1-year) for [[GEOS-Chem v9-02]].<br />
<br />
== 1-year benchmarks ==<br />
<br />
== 1-month benchmarks ==<br />
<br />
=== v9-02b ===<br />
<br />
Here is the assessment form for 1-month benchmark simulation '''v9-02b'''.<br />
<br />
{| border=1 cellspacing=0 cellpadding=5<br />
|-bgcolor="#cccccc"<br />
!width="325px"|Description<br />
! <br />
|- <br />
|New features added into GEOS-Chem:<br />
|<br />
*[[Soil_NOx_emissions#Updated_soil_NOx_emissions_algorithm|New soil NOx emission module]]<br />
*[[GEOS-Chem_v9-01-03#Bug_fix_in_hdf_mod.F|Bug fix in hdf_mod.F]]<br />
*[[GEOS-Chem_v9-02#Bug fixes for tagged CO simulation|Bug fixes for tagged CO simulation]]<br />
*[[GEOS-Chem v9-01-03#Bug fix in nei2005_anthro_mod.F|Bug fix for nested simulation in nei2005_anthro_mod.F]]<br />
|- <br />
|Developer name(s) and institution(s):<br />
|<br />
*''Soil NOx:'' Rynda Hudman Kay (EPA); Neil Moore (formerly of Dalhousie); Bram Maasakkers (Eindhoven)<br />
*''Bug fix in hdf_mod.F:'' Sajeev Philip (Dalhousie)<br />
*''Tagged CO simulation fixes:'' Jenny Fisher (Wollongong); [[GEOS-Chem Support Team]]<br />
*''Bug fix in nei_anthro_mod.F:'' Sajeev Philip (Dalhousie)<br />
|-<br />
|Version, resolution, met fields used:<br />
|v9-02, GEOS-5 (47L), 4x5<br />
|-<br />
|1-month benchmark finished on:<br />
|Wed Oct 24 16:10:25 EDT 2012<br />
|-<br />
|Performance statistics:<br />
|<br />
*Ran on 8 CPUs of bench@titan-08.as.harvard.edu (2.659 GHz x 8 CPU)<br />
*Wall time: 2:19<br />
*Scalability: 6.5256<br />
|-<br />
|Compared to previous benchmark:<br />
|[[#v9-02a|v9-02a]]<br />
|-<br />
|This update will impact:<br>(select all that apply with '''boldface''')<br />
|Advection, BL Mixing, Convection, Met Fields, Dry Dep, Wet Dep, Stratosphere, Anthro Emiss, Biogenic Emiss, Biomass Emiss, Photolysis, Chemistry, Other (please specify): '''Soil NOx emissions'''<br />
|-<br />
|Plots may be viewed at:<br />
|<tt>ftp://ftp.as.harvard.edu/pub/exchange/mpayer/1mo_quick_look/v9-02b/</tt><br />
|-bgcolor="#cccccc"<br />
!Metrics<br />
! <br />
|-<br />
|Global mean OH (from log file):<br />
|12.9398281506753 x 10<sup>5</sup> molec/cm<sup>3</sup><br />
|-<br />
|Methyl chloroform lifetime:<br />
|4.8585 years<br />
|-<br />
|Did either of these change by more than 5%?<br />
|No<br />
|-<br />
|At the SURFACE, list all species that changed by 10% or more:<br />
|NOx, Ox, PAN, ALK4, ISOP, HNO3, H2O2, MEk, ALD2, RCHO, MVK, MACR, PMN, PPN, R4N2, PRPE, C3H8, CH2O, N2O5, HNO4, MP, DMS, SO2, SO4, SO4s, MSA, NH3, NH4, NIT, NITs, Br2, Br, BrO, HOBr, HBr, BrNO2, BrNO3, and OH<br />
|-<br />
|Comments on SURFACE differences:<br />
|The changes are as expected. The new soil NOx parameterization significantly increases the NOx concentrations over North America, the southern part of South America, Central Asia and parts of Africa. Decreases occur over the northern part of South America, central Africa and Indonesia. <br />
Other species are influenced by resulting changes in O3 (and consequently OH). However, some of the reported changes are mainly caused by noise since the absolute differences are very close to zero. <br />
|-<br />
|At 500 hPa, list all species that changed by 10% or more:<br />
|NOx, PAN, ALK4, ISOP, HNO3, MEK, ALD2, RCHO, MVK, MACR, PMN, PPN, PRPE, N2O5, HNO4, MP, DMS, SO2, MSA, NH3, NIT, NITs, Br2, Br, BrO, HOBr, HBr, BrNO2, BrNO3, and OH<br />
|-<br />
|Comments on 500 hPa differences:<br />
|See 'Comments on SURFACE differences'<br />
|-<br />
|In the ZONAL MEAN differences, list all species that changed by 10% or more:<br />
|NOx, PAN, ISOP, HNO3, MEK, RCHO, MVK, MACR, PMN, PPN, PRPE, N2O5, HNO4, DMS, SO4s, NH3, NIT, NITs, Br, BrO, BrNO2, BrNO3 and OH. <br />
|-<br />
|Comments on ZONAL MEAN differences:<br />
|See 'Comments on SURFACE differences'<br />
|-<br />
|In the EMISSION RATIO maps, list all species that changed by 10% or more:<br />
|NOx fertilizer emissions and NOx soil emissions<br />
|-<br />
|Comments on EMISSION RATIO differences:<br />
|The NOx soil emissions diagnostic now includes the NOx fertilizer emissions since the emissions related to fertilizer are now calculated using the same procedure as the “regular” soil emissions based on the biome emission coefficients. The soil NOx emission total increases with 0.310 Tg N to 1.028 Tg N for July. <br />
The fertilizer emissions diagnostics gives the soil NOx emissions related to fertilizer use and deposited nitrogen. <br />
|-<br />
|Additional or summary comments:<br />
|The occurring changes are as expected. The benchmark is performed using a new soil NOx restart file which saves per grid cell:<br />
*The Dry Period (hours)<br />
*Pulsing factor (unitless)<br />
*GWET from the previous timestep (unitless)<br />
*N reservoir from dry/wet deposition (ngN/m2)<br />
*The overall changes are in NOx emissions are consistent with those in Hudman et al. (2012) with the additional canopy reduction that Bram added. <br />
*The changes in O3 and OH follow the changes in NOx emissions. <br />
<br />
|-bgcolor="#cccccc"<br />
!Approval<br />
!<br />
|-<br />
|Requires further investigation:<br />
|TBD<br />
|- <br />
|Approved:<br />
|Randall Martin<br />
|-<br />
|Date of approval:<br />
|29 Oct 2012<br />
|}<br />
<br />
--[[User:Melissa Payer|Melissa Payer]] 13:42, 24 October 2012 (EDT)<br />
<br />
=== v9-02a ===<br />
<br />
Here is the assessment form for 1-month benchmark simulation '''v9-02a'''.<br />
<br />
{| border=1 cellspacing=0 cellpadding=5<br />
|-bgcolor="#cccccc"<br />
!width="325px"|Description<br />
! <br />
|- <br />
|New features added into GEOS-Chem:<br />
|<br />
*[[Boundary layer mixing#Updates on GEOS-5 PBL height .26 diurnal variation of aerosols|Correction for GEOS-5 PBL heights]]<br />
|- <br />
|Developer name(s) and institution(s):<br />
|<br />
*Sajeev Philip (Dalhousie)<br />
|-<br />
|Version, resolution, met fields used:<br />
|v9-02, GEOS-5 (47L), 4x5<br />
|-<br />
|1-month benchmark finished on:<br />
|Fri Oct 12 17:58:19 EDT 2012<br />
|-<br />
|Performance statistics:<br />
|<br />
*Ran on 8 CPUs of bench@titan-10.as.harvard.edu (2.659 GHz x 8 CPU)<br />
*Wall time: 2:19<br />
*Scalability: 6.5621<br />
|-<br />
|Compared to previous benchmark:<br />
|[[GEOS-Chem v9-01-03 benchmark history#v9-01-03-Fix_for_IFORT12|v9-01-03-Fix_for_IFORT12]]<br />
|-<br />
|This update will impact:<br>(select all that apply with '''boldface''')<br />
|Advection, '''BL Mixing''', Convection, Met Fields, Dry Dep, Wet Dep, Stratosphere, Anthro Emiss, Biogenic Emiss, Biomass Emiss, Photolysis, Chemistry, Other (please specify):<br />
|-<br />
|Plots may be viewed at:<br />
|<tt>ftp://ftp.as.harvard.edu/pub/exchange/mpayer/1mo_quick_look/v9-02a/</tt><br />
|-bgcolor="#cccccc"<br />
!Metrics<br />
! <br />
|-<br />
|Global mean OH (from log file):<br />
|12.8727104044567 x 10<sup>5</sup> molec/cm<sup>3</sup><br />
|-<br />
|Methyl chloroform lifetime:<br />
|4.8983 years<br />
|-<br />
|Did either of these change by more than 5%?<br />
|No<br />
|-<br />
|At the SURFACE, list all species that changed by 10% or more:<br />
|All species<br />
|-<br />
|Comments on SURFACE differences:<br />
|Expected. Change in boundary layer mixing <br />
|-<br />
|At 500 hPa, list all species that changed by 10% or more:<br />
|DST4, NITS, NH3, DMS, PRPE, MACR, ISOP (over Ocean) and NIT (over Land)<br />
|-<br />
|Comments on 500 hPa differences:<br />
|Change in boundary layer mixing <br />
|-<br />
|In the ZONAL MEAN differences, list all species that changed by 10% or more:<br />
|All species<br />
|-<br />
|Comments on ZONAL MEAN differences:<br />
|Change in boundary layer mixing <br />
|-<br />
|In the EMISSION RATIO maps, list all species that changed by 10% or more:<br />
|None<br />
|-<br />
|Comments on EMISSION RATIO differences:<br />
|None<br />
|-<br />
|Additional or summary comments:<br />
|None<br />
|-bgcolor="#cccccc"<br />
!Approval<br />
!<br />
|-<br />
|Requires further investigation:<br />
|No<br />
|- <br />
|Approved:<br />
|Yes<br />
|-<br />
|Date of approval:<br />
|Approved 16 Oct 2012<br />
|}<br />
<br />
--[[User:Melissa Payer|Melissa Payer]] 12:00, 15 October 2012 (EDT)</div>Rvmartin