Difference between revisions of "GEOS-Chem model development priorities"

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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/2015/index.html International GEOS-Chem Meeting (IGC7)] in May 2015 and has been continuously updated since based on code readiness and input from the Working Groups and the Steering Committee.
+
'''''[[Main_Page|GEOS-Chem Main Page]] | [[GCHP_Main_Page|GCHP Main Page]]'''''
  
−
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.
+
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]].
  
−
== List of priorities as of Oct 2016 ==
+
== Release schedule ==
  
−
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. More information on those items can be obtained on the [[GEOS-Chem v11-01]] wiki page.
+
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.  
  
−
The items listed below are in different stages of readiness and will be included in future versions of the model.
+
== Merged and awaiting release ==
  
−
=== Ready to go in ===
+
See the links below for items merged and awaiting release.
 +
 
 +
{| border=1 cellspacing=0 cellpadding=5
 +
|-bgcolor="#CCCCCC"
 +
!width="200px"|Patch version in development
 +
!width="200px"|Major version in development
 +
 
 +
|-valign="top"
 +
|align="center"| -
 +
|align="center"|'''[[GEOS-Chem 14.0.0]]'''
 +
 
 +
|}
 +
 
 +
== Feature integration in progress ==
 +
 
 +
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.
 +
 
 +
{| border=1 cellspacing=0 cellpadding=5
 +
|-bgcolor="#CCCCCC"
 +
!width="200px"|Feature
 +
!width="200px"|Contributor(s)
 +
!width="100px"|Model scope
 +
!width="100px"|Ease of implementation
 +
!width="300px"|Notes and References
  
−
{| border=1 cellspacing=0 cellpadding=5
 
−
|- bgcolor="#cccccc"
 
−
!width="400px"|Item
 
−
!width="300px"|Author(s)
 
−
!width="400px"|Status
 
  
 
|-valign="top"
 
|-valign="top"
−
|Halogen chemistry updates
+
|TOMAS in GCHP
−
|Tom&aacute;s Sherwen (York)<br>Johan Schmidt (Harvard)<br>[[Chemistry Issues|Oxidants and Chemistry WG]]
+
|Betty Croft (WashU)
 +
|Aerosols
 +
|Simple
 
|
 
|
 +
*[https://github.com/geoschem/GCHP/pull/221 geoschem/GCHP PR #221]
 +
*[https://github.com/geoschem/geos-chem/pull/1261 geoschem/geos-chem PR #1261]
 +
*[https://github.com/geoschem/HEMCO/pull/145 geoschem/HEMCO PR #145]
  
 
|-valign="top"
 
|-valign="top"
−
|[[Updates_in_JPL_Publication_15-10|Updating chemistry rate constants based on ''JPL Publication 15-10'']]
+
|[https://gmd.copernicus.org/articles/13/2475/2020/gmd-13-2475-2020.pdf Adaptive chemical solver] (as option) / KPP 3.0.0
−
|Barron Henderson (U. Florida)<br>Mat Evans (U. York)<br>[[Chemistry Issues|Oxidants and Chemistry WG]]
+
|Mike Long (Harvard) <br> Haipeng Lin (Harvard) <br> Bob Yantosca (GCST) <br> Lu Shen (PKU)
 +
|Chemistry
 +
|Complicated
 
|
 
|
 +
*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.
 +
|-valign="top"
 +
|[https://acp.copernicus.org/articles/19/7055/2019/ Joint CO2-CO-CH4-OCS simulation via KPP]
 +
|Beata Bukosa (NIWA)<br>Kevin Bowman (JPL)<br>Mike Long (Harvard)
 +
|Specialty simulation
 +
|Medium
 +
|
 +
*[https://github.com/geoschem/geos-chem/issues/654 geoschem/geos-chem #654]
  
 
|-valign="top"
 
|-valign="top"
−
|[[PAN|PAN updates]]
+
|RO2 diagnostic
−
|Emily Fischer (CSU)
+
|Melissa Sulprizio (Harvard)
 +
|Diagnostics
 +
|Simple
 
|
 
|
−
*Delivered to GCST (May 2013)
 
  
 
|-valign="top"
 
|-valign="top"
−
|[[NOx-Ox-HC-aerosol#Monthly mean surface distributions|Monthly mean surface methane distributions]]
+
|[https://github.com/geoschem/geos-chem/issues/770 Output satellite diagnostics as NetCDF]
−
|Lee Murray (NASA GISS/LDEO)
+
|Eloise Marais (UCL)  
 +
|Diagnostics
 +
|Simple
 
|
 
|
 +
*See [https://github.com/geoschem/geos-chem/pull/1134 geoschem/geos-chem #1134]
  
 
|-valign="top"
 
|-valign="top"
−
|[[Sulfate_aerosols#Ocean_ammonia_emission_inventory|Ocean ammonia emission inventory]]
+
|[https://github.com/geoschem/geos-chem/issues/331 Provide climatologies for open fire emissions]
−
|Fabien Paulot (NOAA/GFDL)
+
|Melissa Sulprizio (Harvard)
 +
|Emissions
 +
|Simple
 
|
 
|
−
*Data files delivered to GCST (Jan 2016)
 
−
*Needs to be implemented via HEMCO
 
  
 
|-valign="top"
 
|-valign="top"
−
|[[Aerosol_optical_properties#Add_BC_absorption_enhancement_factor|Update density of BC to 1.8 and add absorption enhancement factor in input.geos]]
+
|[https://github.com/geoschem/geos-chem/issues/655 Climatologies for lightning NOx]
−
|Xuan Wang (MIT)
+
|Lee Murray (Rochester)
 +
|Emissions
 +
|Simple
 
|
 
|
−
*Delivered to [[GEOS-Chem Support Team|GCST]] (Jan 2016)
 
  
 
|-valign="top"
 
|-valign="top"
−
|[[GEOS-Chem_Output_Files#NetCDF_File_Format|NetCDF Output Phase 3a: Output diagnostics in NetCDF format]]  
+
|[https://github.com/geoschem/geos-chem/discussions/1022 Add new species concentration diagnostic in units of molec/cm3]
−
|[[GCST]]
+
|Haipeng Lin (Harvard)
 +
|Diagnostics
 +
|Simple
 
|
 
|
 +
*See [https://github.com/geoschem/geos-chem/pull/1264 geoschem/geos-chem PR #1264]
  
 
|-valign="top"
 
|-valign="top"
−
|[[GEOS-Chem_Output_Files#NetCDF_File_Format|NetCDF Output Phase 3b: Updates to eliminate differences between single and multi-segmented GEOS-Chem runs]]
+
|Identify and remove memory leaks and similar issues
−
|[[GCST]], Christoph Keller
+
|Bob Yantosca (Harvard)
 +
|Structural
 +
|Medium
 
|
 
|
 +
*See [https://github.com/geoschem/geos-chem/pull/1353 github.com/geos-chem PR #1353]
  
 
|-valign="top"
 
|-valign="top"
−
|Species Database Phase 3:
+
|Update transport tracer simulation for consistency with the tracer gridded component in GEOS
−
*Harmonizing Henry's Law coefficients across wet and dry deposition
+
|Melissa Sulprizio (Harvard)
−
|[[GCST]]
+
|TransportTracer simulation
 +
|Simple
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|[[GEOS-Chem_tracer_units|Uniformity of units]]
+
|Bug fix for GFAS in GCHP
−
|Lizzie Lundgren ([[GCST]])
+
|Lizzie Lundgren (Harvard)
 +
|GCHP
 +
|Simple
 
|
 
|
−
*Phase 2 (unit uniformity throughout chemistry) to be implemented after Flexchem
 
−
*Phase 3 (unit uniformity in some specialty simulations) will be implemented in pieces with input from 3rd party developers
 
−
*Phase 4 (removal of area and area-dependent State_Met variables) will be ongoing
 
−
 
  
 +
|-valign="top"
 +
|Use pointers to internal state for species arrays in GCHP/GEOS
 +
|Lizzie Lundgren (Harvard)
 +
|GCHP/GEOS
 +
|Medium
 +
|
  
 
|-valign="top"
 
|-valign="top"
−
|[[Wet_deposition#Update_SO2_scavenging_in_convective_updrafts_for_consistency|Temporary fix to remove SO2 scavenging in convective updrafts]]
+
|[https://github.com/geoschem/geos-chem/issues/1274 Revision to a rate constant for the C2H4 scheme]
−
|Duncan Fairlie (NASA/LARC)  
+
|Kelvin Bates (Harvard)
 +
|Chemistry
 +
|Easy
 
|
 
|
−
*Delivered to [[GEOS-Chem Support Team|GCST]] (Nov 2015)
 
−
*'''''Duncan Fairlie wrote on 03 Mar 2016:'''''
 
−
:I don't think my fix for this issue is ready for prime time. I get chimneys of essentially unscavenged SO2 extending into the UTLS during Asian monsoon, leading to too much sulfate aloft. I think replacing the instantaneous titration of H2O2 in the standard code with the correct oxidation of SO2 by H2O2 (and O3?) is necessary.
 
  
 
|-valign="top"
 
|-valign="top"
−
|[[Wet_deposition#Update_SO2_scavenging_in_convective_updrafts_for_consistency|Update SO2 scavenging in convective updrafts for consistency]]
+
|[https://github.com/geoschem/geos-chem/issues/1298 Fix product in HOBr/Cl + S(IV) reactions]
−
|Duncan Fairlie (NASA/LARC)  
+
|Xuan Wang (CUHK)
 +
|Chemistry
 +
|Easy
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Lightning NOx chemistry parameterization
+
|[https://github.com/geoschem/geos-chem/issues/1235 Add MO2 + NO3 reaction]
−
|Alicia Gressent (MIT)
+
|Kelvin Bates (Harvard)
 +
|Chemistry
 +
|Easy
 
|
 
|
 +
 +
|}
 +
 +
== Delivered and in the queue ==
 +
 +
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.
 +
 +
{| border=1 cellspacing=0 cellpadding=5
 +
|-bgcolor="#CCCCCC"
 +
!width="200px"|Feature
 +
!width="200px"|Contributor(s)
 +
!width="100px"|Model scope
 +
!width="100px"|Ease of implementation
 +
!width="300px"|Notes and References
  
 
|-valign="top"
 
|-valign="top"
−
|Fix to direct/diffuse radiation
+
|[https://doi.org/10.34894/SZ2KOI AMAP 2015 emissions from GMA2018]
−
|Katie Travis (Harvard)
+
|Helene Angot(MIT)<br>Ari Feinberg (MIT)<br>Noelle Selin (MIT)
 +
|Hg simulation
 +
|Simple
 
|
 
|
 +
* Delivered to GCST (Jul 2022)
  
 
|-valign="top"
 
|-valign="top"
−
|[[Dry_deposition#Fix_for_NO3_.2B_ISOP_product|Fix for NO3 + ISOP product]]
+
|[https://pubs.rsc.org/en/content/articlehtml/2022/em/d2em00032f Improvements in modelled Hg0 dry deposition to land]
−
|Katie Travis (Harvard)
+
|Ari Feinberg (MIT)<br>Noelle Selin (MIT)<br>Thandolwethu Dlamini (MIT)<br>Martin Jiskra (UBasel)<br>Viral Shah (Harvard)
 +
|Hg simulation
 +
|Simple
 
|
 
|
 +
* See [https://github.com/geoschem/geos-chem/pull/1367 geoschem/geos-chem PR #1367]
 +
* 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.
  
 
|-valign="top"
 
|-valign="top"
−
|Update OH + NO2 rate
+
|[https://github.com/geoschem/geos-chem/issues/1301 HTAPv3 at 0.1 deg]
−
|Barron Henderson (UF)
+
|Dandan Zhang (WashU)
 +
|Emissions
 +
|Simple
 
|
 
|
 +
*Delivered to GCST (Jul 2022)
  
 +
|}
  
 +
== Delivered but not yet prioritized ==
  
 +
Features listed in this table have been delivered to the GEOS-Chem Support Team but are not yet prioritized for integration into GEOS-Chem.
  
 +
{| border=1 cellspacing=0 cellpadding=5
 +
|-bgcolor="#CCCCCC"
 +
!width="200px"|Feature
 +
!width="200px"|Contributor(s)
 +
!width="100px"|Model scope
 +
!width="100px"|Ease of implementation
 +
!width="300px"|Notes and References
  
 
|-valign="top"
 
|-valign="top"
−
|Lightning update based on Travis et al. (submitted) and Zhang et al. (2014, ACP)
+
|Tagged O3 simulation in GCHP
−
|Katie Travis (Harvard)
+
|Xingpei Yu (PKU)<br>Jourdan He (WashU)
 +
|TagO3 simulation
 +
|Simple
 
|
 
|
 +
*[https://github.com/geoschem/geos-chem/pull/1167 geoschem/geos-chem PR #1167]
 +
* Needs to be updated to a more recent version of GCHP
  
 
|-valign="top"
 
|-valign="top"
−
|Add aqueous isoprene uptake to SOA scheme
+
|[https://doi.org/10.7910/DVN/23BRII Global continental chlorine (pCl and HCl) emissions]
−
|Eloise Marais (Harvard)
+
|Bingqing Zhang (Georgia Tech)<br>Pengfei Liu (Georgia Tech)
 +
|Emissions
 +
|Simple
 
|
 
|
−
*Delivered to GCST (Jul 2016)
+
*Delivered to GCST (Jul 2022)
  
 
|-valign="top"
 
|-valign="top"
−
|Enhance default GEOS-Chem simple SOA
+
|[https://github.com/geoschem/geos-chem/pull/629 Ecophysiology module in GEOS-Chem for biosphere-atmosphere exchange]
−
|Aerosol Working Group Chairs
+
|Joey Lam(CUHK)<br>Amos Tai (CUHK)
 +
|Science
 +
|Simple
 
|
 
|
 +
*Delivered to GCST (Feb 2021)
 +
* [https://github.com/geoschem/geos-chem/pull/629 geoschem/geos-chem #629]
  
 
|-valign="top"
 
|-valign="top"
−
|[http://www.atmos-chem-phys.net/16/2819/2016/ A snow NOx source from deep snowpack]
+
|LPJ land cover (global), fire (W US), dust emissions (SW N America), 1700-2100
−
|Maria Zatko (UW)<br>Becky Alexander (UW)
+
|Yang Li (Baylor University)<br>Loretta Mickley (Harvard)
 +
|Emissions
 +
|Simple
 
|
 
|
 +
*Data files delivered to GCST (July 2021)
 +
*Data are quite large - need to think about storage, compression
  
 
|-valign="top"
 
|-valign="top"
−
|FlexGrid: Use HEMCO I/O and regridding capabilities to read and regrid met fields
+
|[https://agupubs.onlinelibrary.wiley.com/doi/epdf/10.1029/2006GL026015 Stratospheric HCN chemistry]
−
|Jiawei Zhuang (Harvard)
+
|Armin Kleinbohl (JPL)<br>Debra Weisenstein (Harvard, retired)
 +
|Chemistry
 +
|Medium
 
|
 
|
−
*Delivered to GCST (Oct 2016)
+
*Delivered to GCST (Jun 2020)
  
 
|}
 
|}
  
−
--[[User:Melissa Payer|Melissa Sulprizio]] ([[User talk:Melissa Payer|talk]]) 17:56, 18 October 2016 (UTC)
+
== Ready but not delivered ==
  
−
=== Almost there (< 6 months) ===
+
Features listed in this table are ready but have not been delivered to the GEOS-Chem Support Team.
  
−
{| border=1 cellspacing=0 cellpadding=5
+
{| border=1 cellspacing=0 cellpadding=5  
−
|- bgcolor="#cccccc"
+
|-bgcolor="#CCCCCC"
−
!width="400px"|Item
+
!width="200px"|Feature
−
!width="300px"|Author(s)
+
!width="200px"|Contributor(s)
−
!width="400px"|Status
+
!width="100px"|Model scope
 +
!width="300px"|Notes and References
  
 
|-valign="top"
 
|-valign="top"
−
|Update MODIS LAI fields through 2015
+
|Updating VOC fire emissions and adding lumped furan
−
|Barron Henderson (UF)
+
|Colette Heald (MIT)<br>Jessica Haskins (MIT)
 +
|Chemistry
 
|
 
|
 +
* 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.
  
 
|-valign="top"
 
|-valign="top"
−
|[[Python code for GEOS-Chem|Python GEOS-Chem output processing and visualization package]]
+
|Nitrate photolysis
−
|Beno&icirc;t Bovy (U. Li&egrave;ge-Belgium)
+
|Viral Shah (NASA GMAO)
 +
|Chemistry
 
|
 
|
−
*Users may download, test it, and submit feedback to Benoit Bovy.
+
* 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.
  
 
|-valign="top"
 
|-valign="top"
−
|Benchmark of stratosphere simulation
+
|Online H2 chemistry
−
|Dylan Jones (U. Toronto)
+
|Maria Paula Pérez-Peña (UNSW)<br>Jenny Fisher (UOW)<br>Dylan Millet (UMN)
 +
|Chemistry
 
|
 
|
−
*1-yr benchmarks for GEOS-Chem v11-01d and later include comparisons with OSIRIS O3
 
−
*Waiting on OSIRIS NO2 data
 
−
*Waiting on comparisons with ACE-FTS data
 
  
 
|-valign="top"
 
|-valign="top"
−
|Benchmark for nested NA model
+
|Alk4 & R4N2 chemistry
−
|Jun Wang (UNL)
+
|Jared Brewer (Harvard)
 +
|Chemistry
 
|
 
|
 +
* 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.
  
 
|-valign="top"
 
|-valign="top"
−
|High-resolution regional emissions (to be implemented via HEMCO)
+
|Organic acids (RCOOH)
−
|Lin Zhang (PKU)<br>Yuxuan Wang (Texas A&M)
+
|Katie Travis (NASA)
 +
|Chemistry
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Updates to isoprene chemistry, includes:
+
|Update reactions with new JPL & IUPAC recommendations
−
*Fast photolysis of carbonyl nitrates
+
|Kelvin Bates (Harvard)
−
*Aerosol uptake of organic nitrates
+
|Chemistry
−
|Jenny Fisher (U. Wollongong)<br>Elo&iuml;se Marais (Harvard)<br>Kelvin Bates (Caltech)<br>Katie Travis (Harvard)
+
 
|
 
|
−
*This has already been added to the SEAC4RS research version of GEOS-Chem
+
* Currently running simulations to check magnitude of changes
  
 
|-valign="top"
 
|-valign="top"
−
|3D chemical source for CO2 and CO; OH for tagged CO and CH4 simulations
+
|Improve carbon & nitrogen conservation in reactions
−
|Dylan Jones (U. Toronto)
+
|Kelvin Bates (Harvard)
 +
|Chemistry
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Hg code updates (emissions, chemistry, ocean, land)
+
|Blowing snow sea salt in TOMAS
−
|[[Hg and POPs Working Group]]
+
|Betty Croft (Dalhousie)
 +
|Aerosols
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Nested CO2, CH4, Hg, TOMAS, adjoint, etc.
+
|Geologic emission of ethane and propane
−
|[[Nested Model Working Group]]
+
|Matthew Rowlinson and Mat Evans(York)
 +
|Emissions
 
|
 
|
 +
* 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
  
 
|-valign="top"
 
|-valign="top"
−
|Updated nighttime isoprene chemistry
+
|New version of CEDS at 0.1 deg
−
|Rebecca Schwantes (Caltech)
+
|Emma Knowland (NASA)
 +
|Emissions
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Updated organic deposition
+
|[https://github.com/geoschem/geos-chem/issues/550 MEIC (China regional) for 2000-2017 at 0.5x0.625 deg]
−
|Katie Travis (Harvard)<br>Jenny Fisher (U. Wollongong)
+
|Shixian Zhai (Harvard)
 +
|Emissions
 
|
 
|
 +
* Need permission from Qiang Zhang (Tsinghua U.) to distribute data
  
 
|-valign="top"
 
|-valign="top"
−
|EPA-derived BC/OA emissions over US (1990-2012)
+
|KORUS-AQ emissions for East Asia
−
|David Ridley (MIT)
+
|Katie Travis (NASA)
 +
|Emissions
 +
|
 +
* Need permission to distribute data
 +
 
 +
|-valign-"top"
 +
|[https://pubs.rsc.org/en/content/articlelanding/2022/EM/D2EM00019A Australian anthropogenic Hg emissions]
 +
|Stephen MacFarlane (UOW)<br>Jenny Fisher (UOW)<br> Hannah Horowitz (U. Illinois)<br>Viral Shah (Harvard)
 +
|Hg simulation
 +
|
 +
 
 +
|-valign-"top"
 +
|WRF-GC Hg simulation
 +
|Xiaotian Xu (Nanjing U.)<br>Yanxu Zhang (Nanjing U.)
 +
|Hg simulation<br>WRF-GC
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Remove dependence of species drydep on HNO3 drydep
+
|Updated HgII gas-partical partitioning
−
|Katie Travis (Harvard)<br>Jenny Fisher (U. Wollongong)
+
|Kaiyun Liu (Tsinghua U.)<br>Qingru Wu (Tsinghua U.)<br>Shuxiao Wang (Tsinghua U.)
 +
|Hg simulation
 
|
 
|
 +
* Should be option, not default
  
 
|-valign="top"
 
|-valign="top"
−
|MOSAIC implementation
+
|Dry deposition to F90 (readability)
−
|Sebastian Eastham (Harvard)
+
|Chris Holmes (FSU)
 +
|Dry deposition
 
|
 
|
 +
|}
 +
 +
== Almost there (< 6 months) ==
 +
 +
Features listed in this table are in development and will likely be delivered to the GEOS-Chem Support Team within the next 6 months.
 +
 +
{|border=1 cellspacing=0 cellpadding=5
 +
|- bgcolor="#cccccc"
 +
!width="200px"|Feature
 +
!width="200px"|Contributor(s)
 +
!width="100px"|Model scope
 +
!width="420px"|Notes and References
 +
  
 
|-valign="top"
 
|-valign="top"
−
|Updated documentation on setting up new nested domains
+
|DMS Chemistry
−
|Lin Zhang (PKU)<br>Yuxuan Wang (Texas A&M)
+
|Linia Tashmim (UC Riverside)<br>William Porter (UC Riverside)
 +
|Chemistry
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Nested model publication wiki page
+
|PPN+hv, PPN+OH
−
|Jun Wang (UNL)
+
|Robert Ryan (UCL)
 +
|Chemistry
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Past and future fire emissions under RCPs
+
|MBO
−
|Loretta Mickley (Harvard)<br>Yuhang Wang (GIT)<br>Shiliang Wu (MT)
+
|Michael Vermeuel (UMN)
 +
|Chemistry
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|[[Aerosols_Working_Group#Sedimentation_of_stratospheric_aerosols|Sedimentation of stratospheric aerosols]]
+
|[https://github.com/geoschem/geos-chem/issues/1094 Stratospheric adjustment with RRTMG in GEOS-Chem]
−
|Sebastian Eastham (Harvard)
+
|Seb Eastham (MIT)
 +
|Science
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Additional modifications for [[FlexChem]], including:
+
|Re-binning of off-line sea salt and dust for use in TOMAS
−
*Rebuild the pre-built chemistry mechanisms (Standard, Tropchem, UCX, SOA, SOA-SVPOA) with [http://www.paratools.com/Kppa Kppa]
+
|Betty Croft (Dalhousie)
−
*Add capability for custom chemistry mechanism by building KPP on-the-fly in GEOS-Chem
+
|Aerosols
−
|Mike Long (Harvard), [[GCST]]
+
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Surface ocean Hg boundary conditions from MITgcm
+
|Adaption of TOMAS' in-cloud aqueous sulfate production for KPP versus sulfate_mod.F90
−
|Hannah Horowitz (Harvard)
+
|Betty Croft (Dalhousie)
 +
|Aerosols
 
|
 
|
−
*Paper is being prepared for submission
 
  
−
|}
+
|-valign="top"
 +
|ML algorithms for bulk aerosols
 +
|Arshad Nair (SUNY Albany)<br>Fangqun Yu (SUNY Albany)
 +
|Aerosols
 +
|
  
−
--[[User:Melissa Payer|Melissa Sulprizio]] ([[User talk:Melissa Payer|talk]]) 18:30, 18 October 2016 (UTC)
+
|-valign="top"
 +
|PM2.5 and PM10 calculations: aerodynamic vs geometric diameters
 +
|Shixian Zhai (Harvard)
 +
|Aerosols
 +
|
  
−
=== Over the horizon (6-12 months) ===
+
|-valign="top"
 +
|Updates to Hodzic SOA scheme
 +
|Jared Brewer (Harvard)
 +
|Aerosols
 +
|
  
−
{| border=1 cellspacing=0 cellpadding=5
+
|-valign="top"
−
|- bgcolor="#cccccc"
+
|Automated reduction in isoprene scheme
−
!width="400px"|Item
+
|Dan Westervelt (Lamont-Doherty)
−
!width="300px"|Author(s)
+
|Aerosols
−
!width="400px"|Status
+
|
  
 
|-valign="top"
 
|-valign="top"
−
|Dust emissions at nested-grid resolution
+
|Brown carbon chemsitry
−
|Yuxuan Wang (Texas A&M)<br>Jun Wang (UNL)
+
|Jingqiu Mao (U. Alaska)<br>Xuan Wang (CUHK)
 +
|Aerosols
 
|
 
|
 +
  
 
|-valign="top"
 
|-valign="top"
−
|Archive meteorological fields with higher resolution (for RCPs)
+
|GEOS resolution and subgrid convection - Part 2 RAS parameter tuning
−
|Lee Murray (NASA GISS/LDEO)
+
|Tailong He (Toronto)<br>Dylan Jones (Toronto)<br>Andrea Molod (NASA GMAO)
 +
|Convection
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Land cover module in GEOS-Chem
+
|Update surface methane boundary condition using NOAA flask data
−
|Jeffrey Geddes (MIT)<br>Michael Long (Harvard)
+
|Lee Murray (Rochester)
 +
|Input data
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Improved lightning emission scheme
+
|Provide recommended rather than hard-coded scaling factors for online emissions
−
|Lee Murray (NASA GISS/LDEO)
+
|Melissa Sulprizio (Harvard)
 +
|Emissions
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Archive high resolution wind fields for sea salt
+
|High-res top-down TROPOMI-derived seasonal mean NOx emissions for China
−
|[[GEOS-Chem Support Team]]
+
|Jintai Lin (PKU)
 +
|Emissions
 +
|Horizontal resolution: 5km, temporal resolution: JJA mean (monthly data will be available at a later stage; please contact us).
 +
 
 +
|-valign="top"
 +
|Updated biomass burning emission factors and species
 +
|Tess Carter (MIT)
 +
|Emissions
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|[[POPs simulation#PCB simulation|PCB simulation]]
+
|Updated offline sea salt emissions
−
|Carey Friedman (MIT)<br>Helen Amos (Harvard)
+
|Hongjian Weng (PKU) <br> Jintai Lin (PKU)
 +
|Emissions
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|VBS SOA option
+
|HgII deposition too high in 13.4; Hg0 conc too low; should not use as is
−
|Rokjin Park (SNU)
+
|Viral Shah (NASA GMAO)<br>Yanxu Zhang (Nanjing U.)<br>Ari Feinberg (MIT)
 +
|Hg simulation
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Kz eddy mixing scheme
+
|[https://gmd.copernicus.org/articles/13/2569/2020/ Canopy Physics Model]
−
|Karen Yu (Harvard)
+
|Sam Silva (MIT)
 +
|Emissions &<br>Science
 
|
 
|
 +
*DOI: [https://zenodo.org/record/3614062#.XzvrH5NKjOR 10.5281/zenodo.3614062]
 +
*Needs to be updated to a more recent GEOS-Chem version
  
 
|-valign="top"
 
|-valign="top"
−
|Update HCN simulation, implement in standard model via Flexchem
+
|Gridded EPA (GEPA) version 2 emissions for 2012-2018
−
|Jenny Fisher (U. Wollongong)
+
|Bram Maasakkers (SRON)<br>Erin McDuffie (WashU),<br>Melissa Sulprizio (Harvard)
 +
|Emissions<br>CH4 simulation
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Merge standard simulation with specialty simulations for OVOC, acids, aromatics, dicarbonyls, terpenes
+
|Reduce dimension of analytical inversion
−
|Dylan Millet (UMN)<br>Xin Chen (UMN)
+
|Hannah Nesser (Harvard)
 +
|Adjoint capability
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Cl chemistry updates
+
|Retire all BPCH diagnostics
−
|Lyatt Jaegl&eacute; (UW)
+
|Bob Yantosca (Harvard)
 +
|Diagnostics
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Automate redistribution of NOx in HEMCO
+
|GEOS-Chem in CESM 2.3
−
|Lee Murray (NASA GISS/LDEO)
+
|Lizzie Lundgren (Harvard)
 +
|Interfacing with ESMs
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Injection height for fire emissions
+
|Assess memory leak in GCHP
−
|Emily Fischer (CSU)
+
|Killian Murphy (York)
 +
|Model performance
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Option for daily OH, etc. for Hg simulation
+
|Point to internal state for species mixing ratios in GCHP and GEOS
−
|Noelle Selin (MIT)
+
|Lizzie Lundgren (Harvard)<br>Christoph Keller (NASA)
 +
|Structural
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|DMS oxidation scheme updating
+
|Assess precision in GCHP internal state - use R4 for some?
−
|Tom Breider (Harvard)<br>Becky Alexander (U. Washington)<br>[[Chemistry Issues|Oxidants and Chemistry Working Group]]
+
|Lizzie Lundgren (Harvard)
 +
|Structural
 
|
 
|
−
*Currently being worked on by a member of the [http://www.atmos.washington.edu/blog/beckya/group-members/ Alexander group]
 
  
 
|-valign="top"
 
|-valign="top"
−
|Historical Hg emissions (1850-present)
+
|Hybrid MPI-OpenMP in GCHP
−
|Hannah Horowitz (Harvard)
+
|Seb Eastham (MIT)<br>Killian Murphy (York)
 +
|Model performance
 +
|
 +
 
 +
|-valign="top"
 +
|Convert HEMCO input files to YAML
 +
|Melissa Sulprizio (Harvard)
 +
|Structural
 +
|
 +
 
 +
|-valign="top"
 +
|Allow easy disabling of HEMCO emissions for testing
 +
|Melissa Sulprizio (Harvard)
 +
|Structural
 +
|
 +
 
 +
|-valign="top"
 +
|Improve run directory templating and creation with init_rd.sh and shared directories
 +
|Jourdan He (WashU)
 +
|Run directories
 +
|
 +
 
 +
|-valign="top"
 +
|Table of CTM and online GCM properties: GCHP, GCC, GEOS-CTM, GC-Nested, online GEOS, GEOS-replay, etc
 +
|GCST?
 +
|Documentation
 +
|
 +
 
 +
|-valign="top"<
 +
|Upgrade Fast-JX to Cloud-J
 +
|Lizzie Lundgren (Harvard)
 +
|Structural
 
|
 
|
−
*Awaiting completion of David Street's revised 1850-present inventory
 
  
 
|}
 
|}
  
−
--[[User:Melissa Payer|Melissa Sulprizio]] ([[User talk:Melissa Payer|talk]]) 18:54, 18 October 2016 (UTC)
+
== Over the horizon (6-12 months) ==
  
−
=== Longer term (12-24 months)===
+
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.
  
 
{| border=1 cellspacing=0 cellpadding=5
 
{| border=1 cellspacing=0 cellpadding=5
 
|- bgcolor="#cccccc"
 
|- bgcolor="#cccccc"
−
!width="400px"|Item
+
!width="200px"|Feature
−
!width="300px"|Author(s)
+
!width="200px"|Contributor(s)
−
!width="400px"|Status
+
!width="100px"|Model scope
 +
!width="420px"|Notes and References
  
 
|-valign="top"
 
|-valign="top"
−
|[[Sulfate_aerosols#Tagged_sulfate_and_nitrate_simulation|Tagged sulfate and nitrate simulation]], including
+
|Snow / Icy Bromine
−
*[[Sulfate_aerosols#Metal_catalyzed_oxidation_of_SO2|Metal catalyzed oxidation of SO2]] (as a switch)
+
|Becky Alexander (UW)<br>William Swanson (U. Alaska)<br>Shuting Zhai (UW)
−
|Becky Alexander (UW)
+
|Chemistry
 
|
 
|
−
*These updates been implemented in v9-02, but have not been successfully merged with HEMCO in v10-01
 
−
*Improvements for the tagged nitrate simulation are in the pipeline
 
  
 
|-valign="top"
 
|-valign="top"
−
|Global GEOS-FP native-resolution met fields to enable flexible nested domains
+
|Monoterpene oxidation scheme
−
|Jintai Lin (PKU)<br>Lin Zhang (PKU)<br>[[GEOS-Chem Support Team]]
+
|Jessica Haskins (MIT)
 +
|Chemistry
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Dynamics of stomatal conductance in dry deposition
+
|Fire related VOCs including furans
−
|Amos Tai (CUHK)
+
|Lu Hu (UMT)<br>Lixu Jin (UMT)
 +
|Chemistry
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|New dry deposition module (Zhang et al., 2013)
+
|Extension of UCX into the mesosphere
−
|Jintai Lin (PKU)
+
|Seb Eastham (MIT)<br>Eric Fleming (NASA)
 +
|Chemistry
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Bi-directional NH3 emissions
+
|Methane flux ingestion
−
|Juliet Zhu (CSU)<br>Lin Zhang (PKU)
+
|Eloise Marais (UCL)
 +
|Chemistry
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Arsenic simulation
+
|Parameterized effective radius
−
|Shiliang Wu (MT)
+
|Haihui Zhu (WashU)
 +
|Aerosols
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Emission scheme of dust: subgrid wind variation to remove resolution dependence and better interannual variability
+
|Dust non-sphericity impacts on surface chem and optical properties
−
|David Ridley (MIT)
+
|Inderjeet Singh (WashU)
 +
|Aerosols
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Ozone damage to vegetation
+
|Size-resolved stratospheric aerosol
−
|Amos Tai (CUHK)
+
|Seb Eastham (MIT)
 +
|Aerosols
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Implement biogenic emissions of ethane, propane
+
|Extend aerosol settling
−
|Zitely Tzompa (CSU)
+
|Eloise Marais (UCL)
 +
|Aerosols
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Global evaluation of using LWC and ICW variables from met fields
+
|Stratospheric aerosol APM
−
|[http://acmg.seas.harvard.edu/geos/geos_people.html#ucla UCLA group]<br>Hongyu Liu (NIA/NASA LARC)<br>Betty Croft (Dalhousie)
+
|Fangqun Yu (SUNY)
 +
|Aerosols
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Joint CO/CO2/CH4 forward model simulation
+
|Plume-in-grid model
−
|Nicholas Deutscher (U. Wollongong)
+
|Hongwei Sun (Harvard)
 +
|Chemistry
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Subgrid scale precipitation variability
+
|Updated lightning NOx: Prescribe from ground and geostationary lightning flashes
−
|[http://acmg.seas.harvard.edu/ Harvard group]
+
|Lee Murray (Rochester)
 +
|Emissions
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Dry deposition: Update the ozone dry deposition scheme
+
|Seb aircraft emissions beyond recent 2019 update
−
|[http://www.chem.utoronto.ca/wp/murphygroup/ Murphy group] (UofT)
+
|Seb Eastham (MIT)
 +
|Emissions
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Country-based weekend/weekday variability for EDGAR v4.2
+
|FRP-based fire emsisions for eastern US at 0.2 deg
−
|Lee Murray (NASA GISS/LDEO)<br>Christoph Keller (Harvard)
+
|Charlie Fite (FSU)
 +
|Emissions
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Sea salt emission from sea ice
+
|Hg iodine chemistry
−
|Jiayue Huang (UW)
+
|Yiming Fu<br>Yanxu Zhang (Nanjing U.)
 +
|Hg simulation
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Resolution-independent lightning NOx scaling
+
|Hg simulation in GCHP
−
|Lee Murray (NASA GISS/LDEO)
+
|Ari Feinberg (MIT)<br>Lyssa Freese (MIT)
 +
|Hg simulation
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Nested-grid model with GEOS-FP at 1/2&deg; x 5/8&deg; resolution
+
|Update Hg ocean and soil boundary conditions for consistency with new chemistry
−
|[[Nested Model Working Group]]
+
|Yanxu Zhang (Nanjing U.)
 +
|Hg simulation
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|TNO emissions over Europe (7km)
+
|Dry deposition diagnostics by land cover
−
|[http://acmg.seas.harvard.edu/geos/geos_people.html#athens Greece team]
+
|Holly Nowell (FSU)
 +
|Diagnostics
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Re-evaluation of SST dependence of sea salt emissions
+
|Dry deposition process diagnostics
−
|Jiayue Huang (UW)
+
|Holly Nowell (FSU)
 +
|Diagnostics
 
|
 
|
  
−
|}
+
|-valign="top"
 +
|Isotope simulation for CO and CH4 in GCHP
 +
|Lee Murray (Rochester)
 +
|Carbon simulation
 +
|
  
−
--[[User:Melissa Payer|Melissa Sulprizio]] 14:08, 11 May 2015 (EDT)
+
|-valign="top"
 +
|Updated bottom-up global CH4 oil, gas, and coal emissions (GFEI v3)
 +
|Melissa Sulprizio (Harvard)<br>Tia Scarpelli (U. Edinburgh)<br>Zichong Chen (Harvard)
 +
|Emissions<br>CH4 simulation
 +
|
  
−
=== On hold indefinitely ==
+
|-valign="top"
 +
|Separate mixing and emissions
 +
|Bob Yantosca (Harvard)
 +
|Structural
 +
|
  
 +
|-valign="top"
 +
|Modularization of aerosols code for interface with GOCART in GEOS
 +
|Christoph Keller (GMAO)
 +
|Structural
 +
|
 +
 +
|-valign="top"
 +
|Migrating simple SOA formation from carbon_mod.F90 into the KPP "full-chemistry" mechanism
 +
|Bob Yantosca (Harvard)
 +
|Structural
 +
|
 +
 +
|-valign="top"
 +
|Improve load balancing in GCHP
 +
|Seb Eastham (MIT)
 +
|Model performance
 +
|
 +
 +
|-valign="top"
 +
|Update to MAPL 3 in GCHP, including replacement of ExtData.rc with YAML file
 +
|Lizzie Lundgren (Harvard)
 +
|Structural
 +
|
 +
 +
|-valign="top"
 +
|Assessment/improvement of OpenMP performance in GC-Classic and HEMCO standalone
 +
|Bob Yantosca (Harvard)
 +
|Model performance
 +
|
 +
 +
|-valign="top"
 +
|Limit allocation of State_Met to what is needed per simulation
 +
|Melissa Sulprizio (Harvard)
 +
|Structural
 +
|
 +
 +
|-valign="top"
 +
|Make frequency of HEMCO restart file configurable
 +
|Melissa Sulprizio (Harvard)
 +
|Diagnostics
 +
|
 +
 +
|-valign="top"
 +
|Apply masks/scaling in HEMCO based on input category or flag
 +
|Melissa Sulprizio (Harvard)
 +
|Structural
 +
|
 +
 +
|-valign="top"
 +
|Testing the use of monthly mean MERRA-2 CWC with Pb-210 aerosol tracer
 +
|Bo Zhang (NIA)<br>Hongyu Liu (NIA / NASA Langley)
 +
|Transport
 +
|
 +
 +
|-valign="top"
 +
|Testing the use of a new scavenging parameterization developed by Luo and Yu for cold cloud with Pb-210 aerosol tracer
 +
|Gan Luo (SUNY Albany)<br>Fangqun Yu (SUNY-Albany)
 +
|Transport
 +
|
 +
 +
|-valign="top"
 +
|Evaluate vertical mixing in GEOS-Chem with model-model and model-observation comparisons
 +
|Seb Eastham (MIT)<br>Clara Orbe (NASA GISS)<br>Andrew Schuh (CSU)
 +
|Transport
 +
|
 +
 +
|}
 +
 +
== Longer term (12-24 months)==
 +
 +
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.
  
 
{| border=1 cellspacing=0 cellpadding=5
 
{| border=1 cellspacing=0 cellpadding=5
 
|- bgcolor="#cccccc"
 
|- bgcolor="#cccccc"
−
!width="400px"|Item
+
!width="200px"|Feature
−
!width="300px"|Author(s)
+
!width="200px"|Contributor(s)
−
!width="400px"|Status
+
!width="100px"|Model scope
 +
!width="420px"|Notes and References
  
  
 +
|-valign="top"
 +
|[https://github.com/geoschem/geos-chem/issues/1288 New soil NOx parameterization]
 +
|Yi Wang (U. Iowa)<br>Jun Wang (U. Iowa)
 +
|Emissions
 +
|
 +
*See [https://github.com/geoschem/geos-chem/issues/1288 geoschem/geos-chem #1288]
 +
*[https://github.com/geoschem/geos-chem/issues/1288#issuecomment-1255103962 NOTE: This feature has been tabled for the time being.]
  
 +
|-valign="top"
 +
|Updates to Aromatic chemistry
 +
|Stephen MacFarlane (UOW)<br>Jenny Fisher (UOW)
 +
|Chemistry
 +
|
 +
 +
|-valign="top"
 +
|Nitrate photolysis
 +
|Mat Evans (York)<br>Thomas Sherwen (York)<br>Matthew Rowlinson (York)
 +
|Chemistry
 +
|
 +
 +
|-valign="top"
 +
|In aerosol chemistry Halogens
 +
|Mat Evans (York)<br>Hansen Cao (CU Boulder)
 +
|Chemistry
 +
|
 +
 +
|-valign="top"
 +
|Benchmark box model of GC Chemistry
 +
|Katie Travis (NASA)
 +
|Chemistry
 +
|
 +
 +
|-valign="top"
 +
|Alkyl nitrates Alk7, PHAN
 +
|Katie Travis (NASA)
 +
|Chemistry
 +
|
 +
 +
|-valign="top"
 +
|Add stratospheric ozone species to full-chemistry simulations
 +
|Lee Murray (Rochester)
 +
|Chemistry
 +
|
 +
 +
|-valign="top"
 +
|Perchlorate chemistry
 +
|Yuk Chun Chan (UWAB)
 +
|Chemistry
 +
|
 +
 +
|-valign="top"
 +
|Explicit heterogeneous sulfate chemistry
 +
|Katie Travis (NASA)<br>Becky Alexander (UT)
 +
|Chemistry
 +
|
 +
 +
|-valign="top"
 +
|ISORROPIA-lite
 +
|Becky Alexander (UW)
 +
|Aerosols
 +
|
 +
 +
|-valign="top"
 +
|HOx and ozone "emissions" from lightning as option in model to play with
 +
|Jingqiu (Alaska)<br>Lee Murray (Rochester)
 +
|Emissions
 +
|
 +
 +
|-valign="top"
 +
|Sea salt aerosol from sea ice leads
 +
|Hannah Horowitz (U. Illinois)
 +
|Emissions
 +
|
 +
 +
|-valign="top"
 +
|Drought-stress algorithm
 +
|Wei Li (U. Houston)
 +
|
 +
|
 +
 +
|-valign="top"
 +
|Biomass burning injection height profiles
 +
|Inderjeet Singh (WashU)
 +
|Emissions
 +
|
 +
 +
|-valign="top"
 +
|OCIM integration
 +
|Chris Holmes (FSU)<br>Lee Murray (Rochester)
 +
|
 +
|
 +
 +
|-valign="top"
 +
|Updating landcover products in GEOS-Chem
 +
|Chris Holmes (FSU)<br>Jeff Geddes (BU)
 +
|Input data
 +
|
 +
 +
|-valign="top"
 +
|Dry deposition physical improvement
 +
|Chris Holmes (FSU)
 +
|Dry deposition
 +
|
 +
 +
|-valign="top"
 +
|Extend the IMI system to other trace gases
 +
|Lucas Estrada (Harvard)
 +
|Adjoint capabilities
 +
|
 +
 +
 +
|-valign="top"
 +
|TOMAS WRF-GC in regional Thailand simulation
 +
|Win Trivitayanurak (Chulalongkorn U)
 +
|Aerosols
 +
|
  
 
|}
 
|}
  
−
--[[User:Melissa Payer|Melissa Sulprizio]] ([[User talk:Melissa Payer|talk]]) 14:14, 20 October 2016 (UTC)
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'''''[[Main_Page|GEOS-Chem Main Page]] | [[GCHP_Main_Page|GCHP Main Page]]'''''

Revision as of 18:24, 22 September 2022

GEOS-Chem Main Page | GCHP Main Page

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 Working Groups and the Steering Committee. For history of past releases see the GEOS-Chem Versions wiki page.

Release schedule

Please see the GEOS-Chem Release Proposal outlining the procedure and schedule for releasing GEOS-Chem versions.

Merged and awaiting release

See the links below for items merged and awaiting release.

Patch version in development Major version in development
- GEOS-Chem 14.0.0

Feature integration in progress

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.

Feature Contributor(s) Model scope Ease of implementation Notes and References


TOMAS in GCHP Betty Croft (WashU) Aerosols Simple
Adaptive chemical solver (as option) / KPP 3.0.0 Mike Long (Harvard)
Haipeng Lin (Harvard)
Bob Yantosca (GCST)
Lu Shen (PKU) 		Chemistry Complicated
  • 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.
Joint CO2-CO-CH4-OCS simulation via KPP Beata Bukosa (NIWA)
Kevin Bowman (JPL)
Mike Long (Harvard) 		Specialty simulation Medium
RO2 diagnostic Melissa Sulprizio (Harvard) Diagnostics Simple
Output satellite diagnostics as NetCDF Eloise Marais (UCL) Diagnostics Simple
Provide climatologies for open fire emissions Melissa Sulprizio (Harvard) Emissions Simple
Climatologies for lightning NOx Lee Murray (Rochester) Emissions Simple
Add new species concentration diagnostic in units of molec/cm3 Haipeng Lin (Harvard) Diagnostics Simple
Identify and remove memory leaks and similar issues Bob Yantosca (Harvard) Structural Medium
Update transport tracer simulation for consistency with the tracer gridded component in GEOS Melissa Sulprizio (Harvard) TransportTracer simulation Simple
Bug fix for GFAS in GCHP Lizzie Lundgren (Harvard) GCHP Simple
Use pointers to internal state for species arrays in GCHP/GEOS Lizzie Lundgren (Harvard) GCHP/GEOS Medium
Revision to a rate constant for the C2H4 scheme Kelvin Bates (Harvard) Chemistry Easy
Fix product in HOBr/Cl + S(IV) reactions Xuan Wang (CUHK) Chemistry Easy
Add MO2 + NO3 reaction Kelvin Bates (Harvard) Chemistry Easy

Delivered and in the queue

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.

Feature Contributor(s) Model scope Ease of implementation Notes and References
AMAP 2015 emissions from GMA2018 Helene Angot(MIT)
Ari Feinberg (MIT)
Noelle Selin (MIT) 		Hg simulation Simple
  • Delivered to GCST (Jul 2022)
Improvements in modelled Hg0 dry deposition to land Ari Feinberg (MIT)
Noelle Selin (MIT)
Thandolwethu Dlamini (MIT)
Martin Jiskra (UBasel)
Viral Shah (Harvard) 		Hg simulation Simple
  • See geoschem/geos-chem PR #1367
  • 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.
HTAPv3 at 0.1 deg Dandan Zhang (WashU) Emissions Simple
  • Delivered to GCST (Jul 2022)

Delivered but not yet prioritized

Features listed in this table have been delivered to the GEOS-Chem Support Team but are not yet prioritized for integration into GEOS-Chem.

Feature Contributor(s) Model scope Ease of implementation Notes and References
Tagged O3 simulation in GCHP Xingpei Yu (PKU)
Jourdan He (WashU) 		TagO3 simulation Simple
Global continental chlorine (pCl and HCl) emissions Bingqing Zhang (Georgia Tech)
Pengfei Liu (Georgia Tech) 		Emissions Simple
  • Delivered to GCST (Jul 2022)
Ecophysiology module in GEOS-Chem for biosphere-atmosphere exchange Joey Lam(CUHK)
Amos Tai (CUHK) 		Science Simple
LPJ land cover (global), fire (W US), dust emissions (SW N America), 1700-2100 Yang Li (Baylor University)
Loretta Mickley (Harvard) 		Emissions Simple
  • Data files delivered to GCST (July 2021)
  • Data are quite large - need to think about storage, compression
Stratospheric HCN chemistry Armin Kleinbohl (JPL)
Debra Weisenstein (Harvard, retired) 		Chemistry Medium
  • Delivered to GCST (Jun 2020)

Ready but not delivered

Features listed in this table are ready but have not been delivered to the GEOS-Chem Support Team.

Feature Contributor(s) Model scope Notes and References
Updating VOC fire emissions and adding lumped furan Colette Heald (MIT)
Jessica Haskins (MIT) 		Chemistry
  • 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.
Nitrate photolysis Viral Shah (NASA GMAO) Chemistry
  • 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.
Online H2 chemistry Maria Paula Pérez-Peña (UNSW)
Jenny Fisher (UOW)
Dylan Millet (UMN) 		Chemistry
Alk4 & R4N2 chemistry Jared Brewer (Harvard) Chemistry
  • 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.
Organic acids (RCOOH) Katie Travis (NASA) Chemistry
Update reactions with new JPL & IUPAC recommendations Kelvin Bates (Harvard) Chemistry
  • Currently running simulations to check magnitude of changes
Improve carbon & nitrogen conservation in reactions Kelvin Bates (Harvard) Chemistry
Blowing snow sea salt in TOMAS Betty Croft (Dalhousie) Aerosols
Geologic emission of ethane and propane Matthew Rowlinson and Mat Evans(York) Emissions
New version of CEDS at 0.1 deg Emma Knowland (NASA) Emissions
MEIC (China regional) for 2000-2017 at 0.5x0.625 deg Shixian Zhai (Harvard) Emissions
  • Need permission from Qiang Zhang (Tsinghua U.) to distribute data
KORUS-AQ emissions for East Asia Katie Travis (NASA) Emissions
  • Need permission to distribute data
Australian anthropogenic Hg emissions Stephen MacFarlane (UOW)
Jenny Fisher (UOW)
Hannah Horowitz (U. Illinois)
Viral Shah (Harvard) 		Hg simulation
WRF-GC Hg simulation Xiaotian Xu (Nanjing U.)
Yanxu Zhang (Nanjing U.) 		Hg simulation
WRF-GC
Updated HgII gas-partical partitioning Kaiyun Liu (Tsinghua U.)
Qingru Wu (Tsinghua U.)
Shuxiao Wang (Tsinghua U.) 		Hg simulation
  • Should be option, not default
Dry deposition to F90 (readability) Chris Holmes (FSU) Dry deposition

Almost there (< 6 months)

Features listed in this table are in development and will likely be delivered to the GEOS-Chem Support Team within the next 6 months.

Feature Contributor(s) Model scope Notes and References


DMS Chemistry Linia Tashmim (UC Riverside)
William Porter (UC Riverside) 		Chemistry
PPN+hv, PPN+OH Robert Ryan (UCL) Chemistry
MBO Michael Vermeuel (UMN) Chemistry
Stratospheric adjustment with RRTMG in GEOS-Chem Seb Eastham (MIT) Science
Re-binning of off-line sea salt and dust for use in TOMAS Betty Croft (Dalhousie) Aerosols
Adaption of TOMAS' in-cloud aqueous sulfate production for KPP versus sulfate_mod.F90 Betty Croft (Dalhousie) Aerosols
ML algorithms for bulk aerosols Arshad Nair (SUNY Albany)
Fangqun Yu (SUNY Albany) 		Aerosols
PM2.5 and PM10 calculations: aerodynamic vs geometric diameters Shixian Zhai (Harvard) Aerosols
Updates to Hodzic SOA scheme Jared Brewer (Harvard) Aerosols
Automated reduction in isoprene scheme Dan Westervelt (Lamont-Doherty) Aerosols
Brown carbon chemsitry Jingqiu Mao (U. Alaska)
Xuan Wang (CUHK) 		Aerosols


GEOS resolution and subgrid convection - Part 2 RAS parameter tuning Tailong He (Toronto)
Dylan Jones (Toronto)
Andrea Molod (NASA GMAO) 		Convection
Update surface methane boundary condition using NOAA flask data Lee Murray (Rochester) Input data
Provide recommended rather than hard-coded scaling factors for online emissions Melissa Sulprizio (Harvard) Emissions
High-res top-down TROPOMI-derived seasonal mean NOx emissions for China Jintai Lin (PKU) Emissions Horizontal resolution: 5km, temporal resolution: JJA mean (monthly data will be available at a later stage; please contact us).
Updated biomass burning emission factors and species Tess Carter (MIT) Emissions
Updated offline sea salt emissions Hongjian Weng (PKU)
Jintai Lin (PKU) 		Emissions
HgII deposition too high in 13.4; Hg0 conc too low; should not use as is Viral Shah (NASA GMAO)
Yanxu Zhang (Nanjing U.)
Ari Feinberg (MIT) 		Hg simulation
Canopy Physics Model Sam Silva (MIT) Emissions &
Science
Gridded EPA (GEPA) version 2 emissions for 2012-2018 Bram Maasakkers (SRON)
Erin McDuffie (WashU),
Melissa Sulprizio (Harvard) 		Emissions
CH4 simulation
Reduce dimension of analytical inversion Hannah Nesser (Harvard) Adjoint capability
Retire all BPCH diagnostics Bob Yantosca (Harvard) Diagnostics
GEOS-Chem in CESM 2.3 Lizzie Lundgren (Harvard) Interfacing with ESMs
Assess memory leak in GCHP Killian Murphy (York) Model performance
Point to internal state for species mixing ratios in GCHP and GEOS Lizzie Lundgren (Harvard)
Christoph Keller (NASA) 		Structural
Assess precision in GCHP internal state - use R4 for some? Lizzie Lundgren (Harvard) Structural
Hybrid MPI-OpenMP in GCHP Seb Eastham (MIT)
Killian Murphy (York) 		Model performance
Convert HEMCO input files to YAML Melissa Sulprizio (Harvard) Structural
Allow easy disabling of HEMCO emissions for testing Melissa Sulprizio (Harvard) Structural
Improve run directory templating and creation with init_rd.sh and shared directories Jourdan He (WashU) Run directories
Table of CTM and online GCM properties: GCHP, GCC, GEOS-CTM, GC-Nested, online GEOS, GEOS-replay, etc GCST? Documentation
Upgrade Fast-JX to Cloud-J Lizzie Lundgren (Harvard) Structural

Over the horizon (6-12 months)

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.

Feature Contributor(s) Model scope Notes and References
Snow / Icy Bromine Becky Alexander (UW)
William Swanson (U. Alaska)
Shuting Zhai (UW) 		Chemistry
Monoterpene oxidation scheme Jessica Haskins (MIT) Chemistry
Fire related VOCs including furans Lu Hu (UMT)
Lixu Jin (UMT) 		Chemistry
Extension of UCX into the mesosphere Seb Eastham (MIT)
Eric Fleming (NASA) 		Chemistry
Methane flux ingestion Eloise Marais (UCL) Chemistry
Parameterized effective radius Haihui Zhu (WashU) Aerosols
Dust non-sphericity impacts on surface chem and optical properties Inderjeet Singh (WashU) Aerosols
Size-resolved stratospheric aerosol Seb Eastham (MIT) Aerosols
Extend aerosol settling Eloise Marais (UCL) Aerosols
Stratospheric aerosol APM Fangqun Yu (SUNY) Aerosols
Plume-in-grid model Hongwei Sun (Harvard) Chemistry
Updated lightning NOx: Prescribe from ground and geostationary lightning flashes Lee Murray (Rochester) Emissions
Seb aircraft emissions beyond recent 2019 update Seb Eastham (MIT) Emissions
FRP-based fire emsisions for eastern US at 0.2 deg Charlie Fite (FSU) Emissions
Hg iodine chemistry Yiming Fu
Yanxu Zhang (Nanjing U.) 		Hg simulation
Hg simulation in GCHP Ari Feinberg (MIT)
Lyssa Freese (MIT) 		Hg simulation
Update Hg ocean and soil boundary conditions for consistency with new chemistry Yanxu Zhang (Nanjing U.) Hg simulation
Dry deposition diagnostics by land cover Holly Nowell (FSU) Diagnostics
Dry deposition process diagnostics Holly Nowell (FSU) Diagnostics
Isotope simulation for CO and CH4 in GCHP Lee Murray (Rochester) Carbon simulation
Updated bottom-up global CH4 oil, gas, and coal emissions (GFEI v3) Melissa Sulprizio (Harvard)
Tia Scarpelli (U. Edinburgh)
Zichong Chen (Harvard) 		Emissions
CH4 simulation
Separate mixing and emissions Bob Yantosca (Harvard) Structural
Modularization of aerosols code for interface with GOCART in GEOS Christoph Keller (GMAO) Structural
Migrating simple SOA formation from carbon_mod.F90 into the KPP "full-chemistry" mechanism Bob Yantosca (Harvard) Structural
Improve load balancing in GCHP Seb Eastham (MIT) Model performance
Update to MAPL 3 in GCHP, including replacement of ExtData.rc with YAML file Lizzie Lundgren (Harvard) Structural
Assessment/improvement of OpenMP performance in GC-Classic and HEMCO standalone Bob Yantosca (Harvard) Model performance
Limit allocation of State_Met to what is needed per simulation Melissa Sulprizio (Harvard) Structural
Make frequency of HEMCO restart file configurable Melissa Sulprizio (Harvard) Diagnostics
Apply masks/scaling in HEMCO based on input category or flag Melissa Sulprizio (Harvard) Structural
Testing the use of monthly mean MERRA-2 CWC with Pb-210 aerosol tracer Bo Zhang (NIA)
Hongyu Liu (NIA / NASA Langley) 		Transport
Testing the use of a new scavenging parameterization developed by Luo and Yu for cold cloud with Pb-210 aerosol tracer Gan Luo (SUNY Albany)
Fangqun Yu (SUNY-Albany) 		Transport
Evaluate vertical mixing in GEOS-Chem with model-model and model-observation comparisons Seb Eastham (MIT)
Clara Orbe (NASA GISS)
Andrew Schuh (CSU) 		Transport

Longer term (12-24 months)

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.

Feature Contributor(s) Model scope Notes and References


New soil NOx parameterization Yi Wang (U. Iowa)
Jun Wang (U. Iowa) 		Emissions
Updates to Aromatic chemistry Stephen MacFarlane (UOW)
Jenny Fisher (UOW) 		Chemistry
Nitrate photolysis Mat Evans (York)
Thomas Sherwen (York)
Matthew Rowlinson (York) 		Chemistry
In aerosol chemistry Halogens Mat Evans (York)
Hansen Cao (CU Boulder) 		Chemistry
Benchmark box model of GC Chemistry Katie Travis (NASA) Chemistry
Alkyl nitrates Alk7, PHAN Katie Travis (NASA) Chemistry
Add stratospheric ozone species to full-chemistry simulations Lee Murray (Rochester) Chemistry
Perchlorate chemistry Yuk Chun Chan (UWAB) Chemistry
Explicit heterogeneous sulfate chemistry Katie Travis (NASA)
Becky Alexander (UT) 		Chemistry
ISORROPIA-lite Becky Alexander (UW) Aerosols
HOx and ozone "emissions" from lightning as option in model to play with Jingqiu (Alaska)
Lee Murray (Rochester) 		Emissions
Sea salt aerosol from sea ice leads Hannah Horowitz (U. Illinois) Emissions
Drought-stress algorithm Wei Li (U. Houston)
Biomass burning injection height profiles Inderjeet Singh (WashU) Emissions
OCIM integration Chris Holmes (FSU)
Lee Murray (Rochester)
Updating landcover products in GEOS-Chem Chris Holmes (FSU)
Jeff Geddes (BU) 		Input data
Dry deposition physical improvement Chris Holmes (FSU) Dry deposition
Extend the IMI system to other trace gases Lucas Estrada (Harvard) Adjoint capabilities


TOMAS WRF-GC in regional Thailand simulation Win Trivitayanurak (Chulalongkorn U) Aerosols

GEOS-Chem Main Page | GCHP Main Page

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