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/2017/index.html International GEOS-Chem Meeting (IGC8)] in May 2017 and will be continuously updated 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 May 2017 ==
+
== Release schedule ==
  
The items listed below are in different stages of readiness and will be included in future versions of the model.
+
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.  
  
=== Awaiting release ===
+
== Merged and awaiting release ==
  
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 v11-02]] wiki page.
+
See the links below for items merged and awaiting release.
  
{| border=1 cellspacing=0 cellpadding=5
+
{| border=1 cellspacing=0 cellpadding=5  
|- bgcolor="#cccccc"
+
|-bgcolor="#CCCCCC"
!width="400px"|Item
+
!width="200px"|Patch version in development
!width="300px"|Author(s)
+
!width="200px"|Major version in development
!width="400px"|Status
+
 
 +
|-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
  
|- bgcolor="#ccffff"
 
!colspan="3"|Science updates
 
  
 
|-valign="top"
 
|-valign="top"
|[[Updates_in_JPL_Publication_15-10|Updating chemistry rate constants based on ''JPL Publication 15-10'']]
+
|TOMAS in GCHP
|Barron Henderson (U. Florida)<br>Mat Evans (U. York)<br>[[Chemistry Issues|Oxidants and Chemistry WG]]
+
|Betty Croft (WashU)
 +
|Aerosols
 +
|Simple
 
|
 
|
*Included in [[GEOS-Chem v11-02#v11-02a|v11-02a]] (pending approval)
+
*[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"
|[[PAN|PAN updates (including emissions, deposition, species, chemistry)]]
+
|[https://gmd.copernicus.org/articles/13/2475/2020/gmd-13-2475-2020.pdf Adaptive chemical solver] (as option) / KPP 3.0.0
|Emily Fischer (CSU)
+
|Mike Long (Harvard) <br> Haipeng Lin (Harvard) <br> Bob Yantosca (GCST) <br> Lu Shen (PKU)
 +
|Chemistry
 +
|Complicated
 
|
 
|
*Included in [[GEOS-Chem v11-02#v11-02a|v11-02a]] (pending approval)
+
*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"
|[[EPA/NEI11_North_American_emissions#Monthly_mean_emissions|Monthly mean NEI2011 emissions]]
+
|RO2 diagnostic
|[[GCST]]<br>Katie Travis (Harvard)
+
|Melissa Sulprizio (Harvard)
 +
|Diagnostics
 +
|Simple
 
|
 
|
*Included in [[GEOS-Chem v11-02#v11-02a|v11-02a]] (pending approval)
 
  
|-bgcolor="#ccffff" valign="top"
+
|-valign="top"
!colspan="3"|Structural/programming updates
+
|[https://github.com/geoschem/geos-chem/issues/770 Output satellite diagnostics as NetCDF]
 +
|Eloise Marais (UCL)
 +
|Diagnostics
 +
|Simple
 +
|
 +
*See [https://github.com/geoschem/geos-chem/pull/1134 geoschem/geos-chem #1134]
  
 
|-valign="top"
 
|-valign="top"
|TBD
+
|[https://github.com/geoschem/geos-chem/issues/331 Provide climatologies for open fire emissions]
|  
+
|Melissa Sulprizio (Harvard)
 +
|Emissions
 +
|Simple
 
|
 
|
  
|-bgcolor="#ccffff" valign="top"
+
|-valign="top"
!colspan="3"|Documentation
+
|[https://github.com/geoschem/geos-chem/issues/655 Climatologies for lightning NOx]
 +
|Lee Murray (Rochester)
 +
|Emissions
 +
|Simple
 +
|
  
 
|-valign="top"
 
|-valign="top"
|TBD
+
|[https://github.com/geoschem/geos-chem/discussions/1022 Add new species concentration diagnostic in units of molec/cm3]
|  
+
|Haipeng Lin (Harvard)
 +
|Diagnostics
 +
|Simple
 +
|
 +
*See [https://github.com/geoschem/geos-chem/pull/1264 geoschem/geos-chem PR #1264]
 +
 
 +
|-valign="top"
 +
|Identify and remove memory leaks and similar issues
 +
|Bob Yantosca (Harvard)
 +
|Structural
 +
|Medium
 +
|
 +
*See [https://github.com/geoschem/geos-chem/pull/1353 github.com/geos-chem PR #1353]
 +
 
 +
|-valign="top"
 +
|Update transport tracer simulation for consistency with the tracer gridded component in GEOS
 +
|Melissa Sulprizio (Harvard)
 +
|TransportTracer simulation
 +
|Simple
 +
|
 +
 
 +
|-valign="top"
 +
|Bug fix for GFAS in GCHP
 +
|Lizzie Lundgren (Harvard)
 +
|GCHP
 +
|Simple
 +
|
 +
 
 +
|-valign="top"
 +
|Use pointers to internal state for species arrays in GCHP/GEOS
 +
|Lizzie Lundgren (Harvard)
 +
|GCHP/GEOS
 +
|Medium
 +
|
 +
 
 +
|-valign="top"
 +
|[https://github.com/geoschem/geos-chem/issues/1274 Revision to a rate constant for the C2H4 scheme]
 +
|Kelvin Bates (Harvard)
 +
|Chemistry
 +
|Easy
 +
|
 +
 
 +
|-valign="top"
 +
|[https://github.com/geoschem/geos-chem/issues/1298 Fix product in HOBr/Cl + S(IV) reactions]
 +
|Xuan Wang (CUHK)
 +
|Chemistry
 +
|Easy
 +
|
 +
 
 +
|-valign="top"
 +
|[https://github.com/geoschem/geos-chem/issues/1235 Add MO2 + NO3 reaction]
 +
|Kelvin Bates (Harvard)
 +
|Chemistry
 +
|Easy
 
|
 
|
  
 
|}
 
|}
  
--[[User:Melissa Payer|Melissa Sulprizio]] ([[User talk:Melissa Payer|talk]]) 17:19, 11 May 2017 (UTC)
+
== Delivered and in the queue ==
  
=== Ready to go in ===
+
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.
  
==== Slated for inclusion in v11-02 ====
+
{| 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
  
The following items were prioritized for inclusion in [[GEOS-Chem v11-02]].
+
|-valign="top"
 +
|[https://doi.org/10.34894/SZ2KOI AMAP 2015 emissions from GMA2018]
 +
|Helene Angot(MIT)<br>Ari Feinberg (MIT)<br>Noelle Selin (MIT)
 +
|Hg simulation
 +
|Simple
 +
|
 +
* Delivered to GCST (Jul 2022)
  
{| border=1 cellspacing=0 cellpadding=5
+
|-valign="top"
|- bgcolor="#cccccc"
+
|[https://pubs.rsc.org/en/content/articlehtml/2022/em/d2em00032f Improvements in modelled Hg0 dry deposition to land]
!width="400px"|Item
+
|Ari Feinberg (MIT)<br>Noelle Selin (MIT)<br>Thandolwethu Dlamini (MIT)<br>Martin Jiskra (UBasel)<br>Viral Shah (Harvard)
!width="250px"|Author(s)
+
|Hg simulation
!width="80px"|Type
+
|Simple
!width="250px"|Status
+
|
 +
* 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"
!colspan="4" bgcolor="#CCFFFF"|Chemistry updates
+
|[https://github.com/geoschem/geos-chem/issues/1301 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.
 +
 
 +
{| 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"
|Updates to isoprene chemistry, includes:
+
|Tagged O3 simulation in GCHP
*Fast photolysis of carbonyl nitrates
+
|Xingpei Yu (PKU)<br>Jourdan He (WashU)
*Aerosol uptake of organic nitrates
+
|TagO3 simulation
*Nighttime isoprene chemistry
+
|Simple
*Updated organic deposition
+
*Remove dependence of species drydep on HNO3 drydep
+
|Jenny Fisher (U. Wollongong)<br>Elo&iuml;se Marais (Harvard)<br>Katie Travis (Harvard)<br>Kelvin Bates (Caltech)<br>Rebecca Schwantes(Caltech)
+
|Science
+
 
|
 
|
*Delivered to GCST (Mar 2017)
+
*[https://github.com/geoschem/geos-chem/pull/1167 geoschem/geos-chem PR #1167]
*Slated for [[GEOS-Chem v11-02#v11-02c|v11-02c]]
+
* Needs to be updated to a more recent version of GCHP
  
 
|-valign="top"
 
|-valign="top"
|Enhance default GEOS-Chem simple SOA
+
|[https://doi.org/10.7910/DVN/23BRII Global continental chlorine (pCl and HCl) emissions]
|Aerosol Working Group Chairs
+
|Bingqing Zhang (Georgia Tech)<br>Pengfei Liu (Georgia Tech)
|Science
+
|Emissions
 +
|Simple
 
|
 
|
*Slated for [[GEOS-Chem v11-02#v11-02c|v11-02c]]
+
*Delivered to GCST (Jul 2022)
  
 
|-valign="top"
 
|-valign="top"
|Add aqueous isoprene uptake to SOA scheme
+
|[https://github.com/geoschem/geos-chem/pull/629 Ecophysiology module in GEOS-Chem for biosphere-atmosphere exchange]
|Eloise Marais (Harvard)
+
|Joey Lam(CUHK)<br>Amos Tai (CUHK)
 
|Science
 
|Science
 +
|Simple
 
|
 
|
*Delivered to GCST (Jul 2016)
+
*Delivered to GCST (Feb 2021)
*Slated for [[GEOS-Chem v11-02#v11-02c|v11-02c]]
+
* [https://github.com/geoschem/geos-chem/pull/629 geoschem/geos-chem #629]
  
 
|-valign="top"
 
|-valign="top"
|Carbon balance (fix C creation)
+
|LPJ land cover (global), fire (W US), dust emissions (SW N America), 1700-2100
|Sarah Safieddine (MIT)
+
|Yang Li (Baylor University)<br>Loretta Mickley (Harvard)
|Bug fix
+
|Emissions
 +
|Simple
 
|
 
|
*Slated for [[GEOS-Chem v11-02#v11-02c|v11-02c]]
+
*Data files delivered to GCST (July 2021)
 +
*Data are quite large - need to think about storage, compression
  
 
|-valign="top"
 
|-valign="top"
|Other N, C, etc. balance
+
|[https://agupubs.onlinelibrary.wiley.com/doi/epdf/10.1029/2006GL026015 Stratospheric HCN chemistry]
|Barron Henderson (EPA)
+
|Armin Kleinbohl (JPL)<br>Debra Weisenstein (Harvard, retired)
|External script
+
|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.
 +
 +
{| border=1 cellspacing=0 cellpadding=5
 +
|-bgcolor="#CCCCCC"
 +
!width="200px"|Feature
 +
!width="200px"|Contributor(s)
 +
!width="100px"|Model scope
 +
!width="300px"|Notes and References
  
 
|-valign="top"
 
|-valign="top"
|Halogen chemistry updates
+
|Updating VOC fire emissions and adding lumped furan
|Tom&aacute;s Sherwen (York)<br>Johan Schmidt (Harvard)<br>[[Chemistry Issues|Oxidants and Chemistry WG]]
+
|Colette Heald (MIT)<br>Jessica Haskins (MIT)
|Science
+
|Chemistry
 
|
 
|
*Slated for [[GEOS-Chem v11-02#v11-02d|v11-02d]]
+
* 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"
|Sulfur oxidation by reactive halogens
+
|Nitrate photolysis
|Qianjie Chen (UW)
+
|Viral Shah (NASA GMAO)
|Science
+
|Chemistry
 
|
 
|
*Slated for [[GEOS-Chem v11-02#v11-02d|v11-02d]]
+
* 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.
*Implement as part of halogen chemistry
+
  
 
|-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]]
+
|Online H2 chemistry
|Xuan Wang (MIT)
+
|Maria Paula Pérez-Peña (UNSW)<br>Jenny Fisher (UOW)<br>Dylan Millet (UMN)
|Science
+
|Chemistry
 
|
 
|
*Delivered to [[GEOS-Chem Support Team|GCST]] (Jan 2016)
 
*Slated for [[GEOS-Chem v11-02#v11-02e|v11-02e]]
 
  
 
|-valign="top"
 
|-valign="top"
|[[NOx-Ox-HC-aerosol#Monthly mean surface distributions|Monthly mean surface methane distributions]]
+
|Alk4 & R4N2 chemistry
|Lee Murray (NASA GISS/LDEO)
+
|Jared Brewer (Harvard)
|Science
+
|Chemistry
 
|
 
|
*Slated for [[GEOS-Chem v11-02#v11-02e|v11-02e]]
+
* 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"
|[[UCX_chemistry_mechanism#v11-02|Remove initial stratospheric 2D mixing ratio option]]
+
|Organic acids (RCOOH)
|Seb Eastham (Harvard)
+
|Katie Travis (NASA)
|Science
+
|Chemistry
 
|
 
|
*Slated for [[GEOS-Chem v11-02#v11-02e|v11-02e]]
 
  
 
|-valign="top"
 
|-valign="top"
|[[UCX_chemistry_mechanism#UCX_stratospheric_water_boundary_condition_update|UCX stratospheric water boundary condition update]]
+
|Update reactions with new JPL & IUPAC recommendations
|Chris Holmes (UC Irvine)<br>Seb Eastham (Harvard)
+
|Kelvin Bates (Harvard)
|Science
+
|Chemistry
 
|
 
|
*Slated for [[GEOS-Chem v11-02#v11-02e|v11-02e]]
+
* Currently running simulations to check magnitude of changes
*Delivered to GCST (Jan 2017)
+
  
 
|-valign="top"
 
|-valign="top"
|[[Sulfate_aerosols#Tagged_sulfate_and_nitrate_simulation|Tagged sulfate and nitrate simulation]], including
+
|Improve carbon & nitrogen conservation in reactions
*[[Sulfate_aerosols#Metal_catalyzed_oxidation_of_SO2|Metal catalyzed oxidation of SO2]] (as a switch)
+
|Kelvin Bates (Harvard)
|Becky Alexander (UW)
+
|Chemistry
|Science
+
 
|
 
|
*Slated for [[GEOS-Chem v11-02#v11-02e|v11-02e]]
 
  
 
|-valign="top"
 
|-valign="top"
|[[Rn-Pb-Be_simulation#Radon_flux_diagnostic|Radon flux diagnostic]]
+
|Blowing snow sea salt in TOMAS
|[[GCST]]
+
|Betty Croft (Dalhousie)
|Benchmarking
+
|Aerosols
 
|
 
|
*Slated for [[GEOS-Chem v11-02#v11-02e|v11-02e]]
 
  
|-
+
|-valign="top"
!colspan="4" bgcolor="#CCFFFF"|Mercury updates
+
|Geologic emission of ethane and propane
 +
|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"
|Updates to Hg chemistry from Horowitz et al. (2017)
+
|New version of CEDS at 0.1 deg
|Hannah Horowitz (U. Washington)<br>Colin Thackray (Harvard)<br>Rebecca Stern (Harvard)
+
|Emma Knowland (NASA)
|Science
+
|Emissions
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Year 2010 ocean Hg boundary conditions from MITgcm
+
|[https://github.com/geoschem/geos-chem/issues/550 MEIC (China regional) for 2000-2017 at 0.5x0.625 deg]
|Hannah Horowitz (Harvard)
+
|Shixian Zhai (Harvard)
|Science
+
|Emissions
 
|
 
|
 +
* Need permission from Qiang Zhang (Tsinghua U.) to distribute data
  
 
|-valign="top"
 
|-valign="top"
|Historical products emissions from Zhang et al. (2016), should become default
+
|KORUS-AQ emissions for East Asia
|Colin Thackray (Harvard)
+
|Katie Travis (NASA)
|Science
+
|Emissions
 
|
 
|
 +
* Need permission to distribute data
  
|-
+
|-valign-"top"
!colspan="4" bgcolor="#CCFFFF"|Transport updates
+
|[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"
|GEOS resolution & subgrid convection
+
|Updated HgII gas-partical partitioning
|Karen Yu (Harvard)
+
|Kaiyun Liu (Tsinghua U.)<br>Qingru Wu (Tsinghua U.)<br>Shuxiao Wang (Tsinghua U.)
|Science
+
|Hg simulation
 
|
 
|
 +
* Should be option, not default
 +
 +
|-valign="top"
 +
|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.
 +
 +
{|border=1 cellspacing=0 cellpadding=5
 +
|- bgcolor="#cccccc"
 +
!width="200px"|Feature
 +
!width="200px"|Contributor(s)
 +
!width="100px"|Model scope
 +
!width="420px"|Notes and References
  
|-
 
!colspan="4" bgcolor="#CCFFFF"|Emission updates
 
  
 
|-valign="top"
 
|-valign="top"
|OMI-based Volcanic emissions 2005-2012
+
|DMS Chemistry
|Jun Wang (U. Iowa)
+
|Linia Tashmim (UC Riverside)<br>William Porter (UC Riverside)
|Science
+
|Chemistry
 
|
 
|
*Delivered to Christoph Keller?
 
  
 
|-valign="top"
 
|-valign="top"
|[[EDGAR_v4.3_anthropogenic_emissions|EDGAR v4.3.1 emissions]]
+
|PPN+hv, PPN+OH
|Chi Li (Dalhousie)
+
|Robert Ryan (UCL)
|Science
+
|Chemistry
 
|
 
|
*Delivered to GCST (Nov 2016)
 
  
 
|-valign="top"
 
|-valign="top"
|EPA-derived BC/OA emissions over US (1990-2012)
+
|MBO
|David Ridley (MIT)<br>Chi Li (Dalhousie)
+
|Michael Vermeuel (UMN)
|Science
+
|Chemistry
 
|
 
|
*Need to coordinate between two versions
 
  
 
|-valign="top"
 
|-valign="top"
|[[CAC_anthropogenic_emissions#Historical_emissions|Historical CAC emissions]]
+
|[https://github.com/geoschem/geos-chem/issues/1094 Stratospheric adjustment with RRTMG in GEOS-Chem]
|Chi Li (Dalhousie)
+
|Seb Eastham (MIT)
 
|Science
 
|Science
 
|
 
|
*Delivered to GCST (Nov 2016)
 
  
 
|-valign="top"
 
|-valign="top"
|Ammonia emissions from Arctic birds
+
|Re-binning of off-line sea salt and dust for use in TOMAS
 
|Betty Croft (Dalhousie)
 
|Betty Croft (Dalhousie)
|Science
+
|Aerosols
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|[[Sulfate_aerosols#Ocean_ammonia_emission_inventory|Ocean ammonia emission inventory]]
+
|Adaption of TOMAS' in-cloud aqueous sulfate production for KPP versus sulfate_mod.F90
|Fabien Paulot (NOAA/GFDL)
+
|Betty Croft (Dalhousie)
|Science
+
|Aerosols
 
|
 
|
*Data files delivered to GCST (Jan 2016)
 
*Needs to be implemented via HEMCO
 
  
 
|-valign="top"
 
|-valign="top"
|[http://www.atmos-chem-phys.net/16/2819/2016/ A snow NOx source from deep snowpack]
+
|ML algorithms for bulk aerosols
|Maria Zatko (UW)<br>Becky Alexander (UW)
+
|Arshad Nair (SUNY Albany)<br>Fangqun Yu (SUNY Albany)
|Science
+
|Aerosols
 
|
 
|
*Implemented in v9-01-01
 
*Needs to be added as a HEMCO extension
 
  
 
|-valign="top"
 
|-valign="top"
|[[MASAGE_NH3_inventory|MASAGE inventory in HEMCO as default]]
+
|PM2.5 and PM10 calculations: aerodynamic vs geometric diameters
|Fabien Paulot (NOAA/GFDL)<br>Amos Tai (CUHK)
+
|Shixian Zhai (Harvard)
|Science
+
|Aerosols
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|[[MASAGE_NH3_inventory#Non-agricultural_NH3_for_use_with_MASAGE|Non-agricultural NH3 for use with MASAGE]]
+
|Updates to Hodzic SOA scheme
|Amos Tai (CUHK)
+
|Jared Brewer (Harvard)
|Science
+
|Aerosols
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Radon emission update
+
|Automated reduction in isoprene scheme
|Bo Zhang (NIA/NASA Langley)
+
|Dan Westervelt (Lamont-Doherty)
|Science
+
|Aerosols
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Global ethane emissions
+
|Brown carbon chemsitry
|Zitely Tzompa-Sosa (CSU)
+
|Jingqiu Mao (U. Alaska)<br>Xuan Wang (CUHK)
|Science
+
|Aerosols
 
|
 
|
 +
  
 
|-valign="top"
 
|-valign="top"
|Inefficient combustion emissions in Africa (DICE-Africa inventory)
+
|GEOS resolution and subgrid convection - Part 2 RAS parameter tuning
|Eloise Marais (U. Birmingham)<br>Christine Wiedinmyer (NCAR)
+
|Tailong He (Toronto)<br>Dylan Jones (Toronto)<br>Andrea Molod (NASA GMAO)
|Science
+
|Convection
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Trash burning emissions
+
|Update surface methane boundary condition using NOAA flask data
|Eloise Marais (U. Birmingham)<br>Christine Wiedinmyer (NCAR)
+
|Lee Murray (Rochester)
|Science
+
|Input data
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|GFAS biomass burning emissions
+
|Provide recommended rather than hard-coded scaling factors for online emissions
|Mat Evans (York)
+
|Melissa Sulprizio (Harvard)
|Science
+
|Emissions
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|MEIC emissions over China
+
|High-res top-down TROPOMI-derived seasonal mean NOx emissions for China
|Jonathan Moch (Harvard), Loretta Mickley (Harvard)
+
|Jintai Lin (PKU)
|Science
+
|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"
!colspan="4" bgcolor="#CCFFFF"|Deposition/surface updates
+
|Updated offline sea salt emissions
 +
|Hongjian Weng (PKU) <br> Jintai Lin (PKU)
 +
|Emissions
 +
|
  
 +
|-valign="top"
 +
|HgII deposition too high in 13.4; Hg0 conc too low; should not use as is
 +
|Viral Shah (NASA GMAO)<br>Yanxu Zhang (Nanjing U.)<br>Ari Feinberg (MIT)
 +
|Hg simulation
 +
|
  
 
|-valign="top"
 
|-valign="top"
|Harmonizing Henry's Law coefficients across wet and dry deposition
+
|[https://gmd.copernicus.org/articles/13/2569/2020/ Canopy Physics Model]
|[[GCST]]
+
|Sam Silva (MIT)
|Science
+
|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"
 +
|Gridded EPA (GEPA) version 2 emissions for 2012-2018
 +
|Bram Maasakkers (SRON)<br>Erin McDuffie (WashU),<br>Melissa Sulprizio (Harvard)
 +
|Emissions<br>CH4 simulation
 +
|
  
 +
|-valign="top"
 +
|Reduce dimension of analytical inversion
 +
|Hannah Nesser (Harvard)
 +
|Adjoint capability
 +
|
  
 
|-valign="top"
 
|-valign="top"
|[[Aerosols_Working_Group#Sedimentation_of_stratospheric_aerosols|Sedimentation of stratospheric aerosols]]
+
|Retire all BPCH diagnostics
|Sebastian Eastham (Harvard)
+
|Bob Yantosca (Harvard)
|Science
+
|Diagnostics
 
|
 
|
  
|-
+
|-valign="top"
!colspan="4" bgcolor="#CCFFFF"|Structural updates
+
|GEOS-Chem in CESM 2.3
 +
|Lizzie Lundgren (Harvard)
 +
|Interfacing with ESMs
 +
|
  
 
|-valign="top"
 
|-valign="top"
|[[GEOS-Chem_species_units|Uniformity of units]]
+
|Assess memory leak in GCHP
|[[GCST]]
+
|Killian Murphy (York)
|Structural
+
|Model performance
 
|
 
|
*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"
 
|-valign="top"
|[[GEOS-Chem_Output_Files#NetCDF_File_Format|NetCDF Output Phase 3a: Output diagnostics in NetCDF format]]
+
|Point to internal state for species mixing ratios in GCHP and GEOS
|[[GCST]]
+
|Lizzie Lundgren (Harvard)<br>Christoph Keller (NASA)
 
|Structural
 
|Structural
 
|
 
|
  
 
|-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]]
+
|Assess precision in GCHP internal state - use R4 for some?
|[[GCST]]<br>Christoph Keller
+
|Lizzie Lundgren (Harvard)
|Bug fix/Structural
+
|Structural
 
|
 
|
  
|-
+
|-valign="top"
!colspan="4" bgcolor="#CCFFFF"|Expansion of model capabilities
+
|Hybrid MPI-OpenMP in GCHP
 +
|Seb Eastham (MIT)<br>Killian Murphy (York)
 +
|Model performance
 +
|
  
 
|-valign="top"
 
|-valign="top"
|Additional modifications for [[FlexChem]], including:
+
|Convert HEMCO input files to YAML
*Rebuild the pre-built chemistry mechanisms (Standard, Tropchem, UCX, SOA, SOA-SVPOA) with [http://www.paratools.com/Kppa Kppa]
+
|Melissa Sulprizio (Harvard)
*Add capability for custom chemistry mechanism by building KPP on-the-fly in GEOS-Chem
+
|Mike Long (Harvard)<br>[[GCST]]
+
 
|Structural
 
|Structural
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|FlexGrid: Use HEMCO I/O and regridding capabilities to read and regrid met fields
+
|Allow easy disabling of HEMCO emissions for testing
|Jiawei Zhuang (Harvard)<br>Jintai Lin (PKU)
+
|Melissa Sulprizio (Harvard)
 
|Structural
 
|Structural
 
|
 
|
*Delivered to GCST (Oct 2016)
 
  
 
|-valign="top"
 
|-valign="top"
|Merge standard simulation with specialty simulations for OVOC, acids, aromatics, dicarbonyls, terpenes
+
|Improve run directory templating and creation with init_rd.sh and shared directories
|Dylan Millet (UMN)<br>Xin Chen (UMN)
+
|Jourdan He (WashU)
|Science
+
|Run directories
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Nested CO2, CH4, Hg, TOMAS, adjoint, etc.
+
|Table of CTM and online GCM properties: GCHP, GCC, GEOS-CTM, GC-Nested, online GEOS, GEOS-replay, etc  
|[[Nested Model Working Group]]
+
|GCST?
|Science
+
|Documentation
 +
|
 +
 
 +
|-valign="top"<
 +
|Upgrade Fast-JX to Cloud-J
 +
|Lizzie Lundgren (Harvard)
 +
|Structural
 
|
 
|
  
 
|}
 
|}
  
--[[User:Melissa Payer|Melissa Sulprizio]] ([[User talk:Melissa Payer|talk]]) 17:19, 11 May 2017 (UTC)
+
== Over the horizon (6-12 months) ==
  
==== Defer to v11-03 unless ready in time for v11-02 ====
+
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="250px"|Author(s)
+
!width="200px"|Contributor(s)
!width="80px"|Type
+
!width="100px"|Model scope
!width="250px"|Status
+
!width="420px"|Notes and References
  
 
|-valign="top"
 
|-valign="top"
|Global evaluation of using LWC and IWC from met fields for wet scavenging
+
|Snow / Icy Bromine
|Hongyu Liu (NIA/NASA LARC)<br>Bo Zhang (NIA)
+
|Becky Alexander (UW)<br>William Swanson (U. Alaska)<br>Shuting Zhai (UW)
|Science
+
|Chemistry
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Kz eddy mixing scheme
+
|Monoterpene oxidation scheme
|Karen Yu (Harvard)
+
|Jessica Haskins (MIT)
|Science
+
|Chemistry
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|VBS SOA option
+
|Fire related VOCs including furans
|Rokjin Park (SNU)
+
|Lu Hu (UMT)<br>Lixu Jin (UMT)
|Science
+
|Chemistry
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Benchmark of stratosphere simulation
+
|Extension of UCX into the mesosphere
|Dylan Jones (U. Toronto)
+
|Seb Eastham (MIT)<br>Eric Fleming (NASA)
|Benchmarking
+
|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"
 +
|Methane flux ingestion
 +
|Eloise Marais (UCL)
 +
|Chemistry
 +
|
  
--[[User:Melissa Payer|Melissa Sulprizio]] ([[User talk:Melissa Payer|talk]]) 17:19, 11 May 2017 (UTC)
+
|-valign="top"
 +
|Parameterized effective radius
 +
|Haihui Zhu (WashU)
 +
|Aerosols
 +
|
  
==== Not prioritized for v11-02 ====
+
|-valign="top"
 +
|Dust non-sphericity impacts on surface chem and optical properties
 +
|Inderjeet Singh (WashU)
 +
|Aerosols
 +
|
  
{| border=1 cellspacing=0 cellpadding=5
+
|-valign="top"
|- bgcolor="#cccccc"
+
|Size-resolved stratospheric aerosol
!width="400px"|Item
+
|Seb Eastham (MIT)
!width="250px"|Author(s)
+
|Aerosols
!width="80px"|Type
+
|
!width="250px"|Status
+
  
 
|-valign="top"
 
|-valign="top"
|[[Python code for GEOS-Chem|Python GEOS-Chem output processing and visualization package]]
+
|Extend aerosol settling
|Beno&icirc;t Bovy (U. Li&egrave;ge-Belgium)
+
|Eloise Marais (UCL)
|Software package
+
|Aerosols
 
|
 
|
*Users may download, test it, and submit feedback to Benoit Bovy.
 
  
 
|-valign="top"
 
|-valign="top"
|Sea salt emission from sea ice
+
|Stratospheric aerosol APM
|Jiayue Huang (UW)
+
|Fangqun Yu (SUNY)
|Science
+
|Aerosols
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Re-evaluation of SST dependence of sea salt emissions
+
|Plume-in-grid model
|Jiayue Huang (UW)
+
|Hongwei Sun (Harvard)
|Science
+
|Chemistry
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|MOSAIC implementation
+
|Updated lightning NOx: Prescribe from ground and geostationary lightning flashes
|Sebastian Eastham (Harvard)
+
|Lee Murray (Rochester)
|Science
+
|Emissions
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|[[MEGAN_v2.1_plus_Guenther_2012_biogenic_emissions#Discussion_of_LAI_Data_Sources|Update MODIS LAI fields through 2015]]
+
|Seb aircraft emissions beyond recent 2019 update
|Barron Henderson (UF)
+
|Seb Eastham (MIT)
|Science
+
|Emissions
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Lightning NOx chemistry parameterization
+
|FRP-based fire emsisions for eastern US at 0.2 deg
|Alicia Gressent (MIT)
+
|Charlie Fite (FSU)
|Science
+
|Emissions
 
|
 
|
  
|}
+
|-valign="top"
 +
|Hg iodine chemistry
 +
|Yiming Fu<br>Yanxu Zhang (Nanjing U.)
 +
|Hg simulation
 +
|
  
--[[User:Melissa Payer|Melissa Sulprizio]] ([[User talk:Melissa Payer|talk]]) 17:19, 11 May 2017 (UTC)
+
|-valign="top"
 +
|Hg simulation in GCHP
 +
|Ari Feinberg (MIT)<br>Lyssa Freese (MIT)
 +
|Hg simulation
 +
|
  
=== Almost there (< 6 months) ===
+
|-valign="top"
 +
|Update Hg ocean and soil boundary conditions for consistency with new chemistry
 +
|Yanxu Zhang (Nanjing U.)
 +
|Hg simulation
 +
|
  
{| border=1 cellspacing=0 cellpadding=5
+
|-valign="top"
|- bgcolor="#cccccc"
+
|Dry deposition diagnostics by land cover
!width="400px"|Item
+
|Holly Nowell (FSU)
!width="250px"|Author(s)
+
|Diagnostics
!width="80px"|Type
+
|
!width="250px"|Status
+
  
 
|-valign="top"
 
|-valign="top"
|[[POPs simulation#PCB simulation|PCB simulation]]
+
|Dry deposition process diagnostics
|Colin Thackray (Harvard)<br>Carey Friedman (formerly MIT)<br>Helen Amos (formerly Harvard)
+
|Holly Nowell (FSU)
|Science
+
|Diagnostics
 
|
 
|
  
|}
+
|-valign="top"
 +
|Isotope simulation for CO and CH4 in GCHP
 +
|Lee Murray (Rochester)
 +
|Carbon simulation
 +
|
  
--[[User:Melissa Payer|Melissa Sulprizio]] ([[User talk:Melissa Payer|talk]]) 17:40, 11 May 2017 (UTC)
+
|-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
 +
|
  
=== Over the horizon (6-12 months) ===
+
|-valign="top"
 +
|Separate mixing and emissions
 +
|Bob Yantosca (Harvard)
 +
|Structural
 +
|
  
{| border=1 cellspacing=0 cellpadding=5
+
|-valign="top"
|- bgcolor="#cccccc"
+
|Modularization of aerosols code for interface with GOCART in GEOS
!width="400px"|Item
+
|Christoph Keller (GMAO)
!width="250px"|Author(s)
+
|Structural
!width="80px"|Type
+
|
!width="250px"|Status
+
  
 
|-valign="top"
 
|-valign="top"
|[[Wet_deposition#Update_SO2_scavenging_in_convective_updrafts_for_consistency|Update SO2 scavenging in convective updrafts for consistency]]
+
|Migrating simple SOA formation from carbon_mod.F90 into the KPP "full-chemistry" mechanism
|Duncan Fairlie (NASA/LARC)  
+
|Bob Yantosca (Harvard)
|Science
+
|Structural
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Dust emissions at nested-grid resolution
+
|Improve load balancing in GCHP
|Yuxuan Wang (Texas A&M)<br>Jun Wang (UNL)
+
|Seb Eastham (MIT)
|Science
+
|Model performance
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Archive meteorological fields with higher resolution (for RCPs)
+
|Update to MAPL 3 in GCHP, including replacement of ExtData.rc with YAML file
|Lee Murray (NASA GISS/LDEO)
+
|Lizzie Lundgren (Harvard)
|Science
+
|Structural
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Land cover module in GEOS-Chem
+
|Assessment/improvement of OpenMP performance in GC-Classic and HEMCO standalone
|Jeffrey Geddes (MIT)<br>Michael Long (Harvard)
+
|Bob Yantosca (Harvard)
|Science
+
|Model performance
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Improved lightning emission scheme
+
|Limit allocation of State_Met to what is needed per simulation
|Lee Murray (NASA GISS/LDEO)
+
|Melissa Sulprizio (Harvard)
|Science
+
|Structural
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Archive high resolution wind fields for sea salt
+
|Make frequency of HEMCO restart file configurable
|[[GEOS-Chem Support Team]]
+
|Melissa Sulprizio (Harvard)
|Science
+
|Diagnostics
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Cl chemistry updates
+
|Apply masks/scaling in HEMCO based on input category or flag
|Lyatt Jaegl&eacute; (UW)
+
|Melissa Sulprizio (Harvard)
|Science
+
|Structural
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Automate redistribution of NOx in HEMCO
+
|Testing the use of monthly mean MERRA-2 CWC with Pb-210 aerosol tracer
|Lee Murray (NASA GISS/LDEO)
+
|Bo Zhang (NIA)<br>Hongyu Liu (NIA / NASA Langley)
|Science
+
|Transport
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Include Hg in full chemistry
+
|Testing the use of a new scavenging parameterization developed by Luo and Yu for cold cloud with Pb-210 aerosol tracer
|Noelle Selin (MIT)
+
|Gan Luo (SUNY Albany)<br>Fangqun Yu (SUNY-Albany)
|Science
+
|Transport
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|DMS oxidation scheme updating
+
|Evaluate vertical mixing in GEOS-Chem with model-model and model-observation comparisons
|Tom Breider (Harvard)<br>Becky Alexander (U. Washington)<br>[[Chemistry Issues|Oxidants and Chemistry Working Group]]
+
|Seb Eastham (MIT)<br>Clara Orbe (NASA GISS)<br>Andrew Schuh (CSU)
|Science
+
|Transport
 
|
 
|
*Currently being worked on by a member of the [http://www.atmos.washington.edu/blog/beckya/group-members/ Alexander group]
+
 
 +
|}
 +
 
 +
== 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
 +
|- bgcolor="#cccccc"
 +
!width="200px"|Feature
 +
!width="200px"|Contributor(s)
 +
!width="100px"|Model scope
 +
!width="420px"|Notes and References
 +
 
  
 
|-valign="top"
 
|-valign="top"
|Historical Hg emissions (1850-present)
+
|[https://github.com/geoschem/geos-chem/issues/1288 New soil NOx parameterization]
|Hannah Horowitz (Harvard)
+
|Yi Wang (U. Iowa)<br>Jun Wang (U. Iowa)
|Science
+
|Emissions
 
|
 
|
*Awaiting completion of David Street's revised 1850-present inventory
+
*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"
 
|-valign="top"
|Joint CO/CO2/CH4 forward model simulation
+
|Updates to Aromatic chemistry
|Nicholas Deutscher (U. Wollongong)
+
|Stephen MacFarlane (UOW)<br>Jenny Fisher (UOW)
|Science
+
|Chemistry
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Past and future fire emissions under RCPs
+
|Nitrate photolysis
|Loretta Mickley (Harvard)<br>Yuhang Wang (GIT)<br>Shiliang Wu (MT)
+
|Mat Evans (York)<br>Thomas Sherwen (York)<br>Matthew Rowlinson (York)
|Science
+
|Chemistry
 
|
 
|
*Some regional (western US, Canada, and Alaska) inventories for the 2050s A1B scenario are available by request (Loretta Mickley).
 
*Further work on global scale and other scenarios are underway.
 
  
 
|-valign="top"
 
|-valign="top"
|Benchmark for 0.25x0.3125 nested NA model
+
|In aerosol chemistry Halogens
|Jun Wang (UNL)
+
|Mat Evans (York)<br>Hansen Cao (CU Boulder)
|Benchmarking
+
|Chemistry
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Emission scheme of dust: subgrid wind variation to remove resolution dependence and better interannual variability
+
|Benchmark box model of GC Chemistry
|David Ridley (MIT)
+
|Katie Travis (NASA)
|Science
+
|Chemistry
 
|
 
|
  
|}
+
|-valign="top"
 +
|Alkyl nitrates Alk7, PHAN
 +
|Katie Travis (NASA)
 +
|Chemistry
 +
|
  
--[[User:Melissa Payer|Melissa Sulprizio]] ([[User talk:Melissa Payer|talk]]) 17:19, 11 May 2017 (UTC)
+
|-valign="top"
 +
|Add stratospheric ozone species to full-chemistry simulations
 +
|Lee Murray (Rochester)
 +
|Chemistry
 +
|
  
=== Longer term (12-24 months)===
+
|-valign="top"
 +
|Perchlorate chemistry
 +
|Yuk Chun Chan (UWAB)
 +
|Chemistry
 +
|
  
{| border=1 cellspacing=0 cellpadding=5
+
|-valign="top"
|- bgcolor="#cccccc"
+
|Explicit heterogeneous sulfate chemistry
!width="400px"|Item
+
|Katie Travis (NASA)<br>Becky Alexander (UT)
!width="250px"|Author(s)
+
|Chemistry
!width="80px"|Type
+
|
!width="250px"|Status
+
  
 
|-valign="top"
 
|-valign="top"
|[[Sulfate_aerosols#Tagged_sulfate_and_nitrate_simulation|Tagged sulfate and nitrate simulation]], including
+
|ISORROPIA-lite
*[[Sulfate_aerosols#Metal_catalyzed_oxidation_of_SO2|Metal catalyzed oxidation of SO2]] (as a switch)
+
 
|Becky Alexander (UW)
 
|Becky Alexander (UW)
|Science
+
|Aerosols
 
|
 
|
*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"
|CO2 dependence of stomata conductance in dry deposition
+
|HOx and ozone "emissions" from lightning as option in model to play with
|Amos Tai (CUHK)
+
|Jingqiu (Alaska)<br>Lee Murray (Rochester)
|Science
+
|Emissions
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Ozone damage to vegetation
+
|Sea salt aerosol from sea ice leads
|Amos Tai (CUHK)
+
|Hannah Horowitz (U. Illinois)
|Science
+
|Emissions
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Bi-directional NH3 emissions
+
|Drought-stress algorithm
|Juliet Zhu (CSU)<br>Lin Zhang (PKU)
+
|Wei Li (U. Houston)
|Science
+
|
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Arsenic simulation
+
|Biomass burning injection height profiles
|Shiliang Wu (MT)
+
|Inderjeet Singh (WashU)
|Science
+
|Emissions
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Dry deposition: Update the ozone dry deposition scheme
+
|OCIM integration
|[http://www.chem.utoronto.ca/wp/murphygroup/ Murphy group] (UofT)
+
|Chris Holmes (FSU)<br>Lee Murray (Rochester)
|Science
+
|
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Country-based weekend/weekday variability for EDGAR v4.2
+
|Updating landcover products in GEOS-Chem
|Lee Murray (NASA GISS/LDEO)<br>Christoph Keller (Harvard)
+
|Chris Holmes (FSU)<br>Jeff Geddes (BU)
|Science
+
|Input data
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Resolution-independent lightning NOx scaling
+
|Dry deposition physical improvement
|Lee Murray (NASA GISS/LDEO)
+
|Chris Holmes (FSU)
|Science
+
|Dry deposition
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Nested-grid model with GEOS-FP at 1/2&deg; x 5/8&deg; resolution
+
|Extend the IMI system to other trace gases
|[[Nested Model Working Group]]
+
|Lucas Estrada (Harvard)
|Structural
+
|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]]) 17:19, 11 May 2017 (UTC)
+
----------------
 +
 
 +
'''''[[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