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

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'''''[[Main_Page|GEOS-Chem Main Page]] | [[GCHP_Main_Page|GCHP Main Page]]'''''
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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]].
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On this page we list the current priorities for GEOS-Chem development. This list is continuously updated based on code readiness and input from the [http://acmg.seas.harvard.edu/geos/geos_working_groups.html Working Groups] and the [http://acmg.seas.harvard.edu/geos/geos_steering_cmte.html Steering Committee]. For history of past releases see the [[GEOS-Chem_versions|GEOS-Chem Versions wiki page]].
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== Release schedule ==
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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.  
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== Merged and awaiting release ==
 
== Merged and awaiting release ==
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{| border=1 cellspacing=0 cellpadding=5  
 
{| border=1 cellspacing=0 cellpadding=5  
 
|-bgcolor="#CCCCCC"
 
|-bgcolor="#CCCCCC"
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!width="200px"|Patch version in development
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!width="300px"|Mergeable at any time
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!width="200px"|Major version in development
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!width="200px"|Version in development
  
 
|-valign="top"
 
|-valign="top"
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|align="center"| -
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|align="center"|'''[[GEOS-Chem no-diff-to-benchmark]]'''
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|align="center"|'''[[GEOS-Chem 14.0.0]]'''
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|align="center"|'''[[GEOS-Chem 14.4.0]]'''
  
 
|}
 
|}
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== Feature integration in progress ==
 
== Feature integration in progress ==
  
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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.  
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Features listed in this table are actively being integrated into GEOS-Chem by the [https://geoschem.github.io/support-team.html 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  
 
{| border=1 cellspacing=0 cellpadding=5  
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!width="100px"|Ease of implementation
 
!width="100px"|Ease of implementation
 
!width="300px"|Notes and References
 
!width="300px"|Notes and References
−
 
  
 
|-valign="top"
 
|-valign="top"
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|TOMAS in GCHP
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|KORUS-AQ emissions for East Asia (as an option)
−
|Betty Croft (WashU)
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|Katie Travis (NASA)
−
|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]
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−
*[https://github.com/geoschem/HEMCO/pull/145 geoschem/HEMCO PR #145]
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−
 
+
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|-valign="top"
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−
|[https://gmd.copernicus.org/articles/13/2475/2020/gmd-13-2475-2020.pdf Adaptive chemical solver] (as option) / KPP 3.0.0
+
−
|Mike Long (Harvard) <br> Haipeng Lin (Harvard) <br> Bob Yantosca (GCST) <br> Lu Shen (PKU)
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−
|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.
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−
|-valign="top"
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−
|[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]
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−
 
+
−
|-valign="top"
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−
|RO2 diagnostic
+
−
|Melissa Sulprizio (Harvard)
+
−
|Diagnostics
+
−
|Simple
+
−
|
+
−
 
+
−
|-valign="top"
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−
|[https://github.com/geoschem/geos-chem/issues/770 Output satellite diagnostics as NetCDF]
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−
|Eloise Marais (UCL)
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−
|Diagnostics
+
−
|Simple
+
−
|
+
−
*See [https://github.com/geoschem/geos-chem/pull/1134 geoschem/geos-chem #1134]
+
−
 
+
−
|-valign="top"
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−
|[https://github.com/geoschem/geos-chem/issues/331 Provide climatologies for open fire emissions]
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−
|Melissa Sulprizio (Harvard)
+
 
|Emissions
 
|Emissions
 
|Simple
 
|Simple
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|-valign="top"
 
|-valign="top"
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|[https://github.com/geoschem/geos-chem/issues/655 Climatologies for lightning NOx]
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|[https://doi.org/10.7910/DVN/23BRII Global continental chlorine (pCl and HCl) emissions]
−
|Lee Murray (Rochester)<br>Melissa Sulprizio (Harvard)
+
|Bingqing Zhang (Georgia Tech)<br>Pengfei Liu (Georgia Tech)
 
|Emissions
 
|Emissions
 
|Simple
 
|Simple
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|-valign="top"
 
|-valign="top"
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|[https://github.com/geoschem/geos-chem/discussions/1022 Add new species concentration diagnostic in units of molec/cm3]
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|[https://github.com/geoschem/geos-chem/issues/1747 Parameterization of SNA and OM dry size]
−
|Haipeng Lin (Harvard)
+
|Haihui Zhu (WashU)
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|Diagnostics
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|Aerosols
−
|Simple
+
|Medium
 
|
 
|
−
*See [https://github.com/geoschem/geos-chem/pull/1264 geoschem/geos-chem PR #1264]
+
*[https://egusphere.copernicus.org/preprints/2022/egusphere-2022-1292/ Zhu et al., EGUsphere, submitted 2023.]
 +
*[https://github.com/geoschem/geos-chem/pull/1902 geos-chem PR #1902]
  
 
|-valign="top"
 
|-valign="top"
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|Identify and remove memory leaks and similar issues
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|[https://github.com/geoschem/geos-chem/issues/1288 New soil NOx parameterization]
−
|Bob Yantosca (Harvard)
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|Yi Wang (U. Iowa)<br>Jun Wang (U. Iowa)
−
|Structural
+
|Emissions
 
|Medium
 
|Medium
 
|
 
|
−
*See [https://github.com/geoschem/geos-chem/pull/1353 github.com/geos-chem PR #1353]
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*[https://github.com/geoschem/geos-chem/issues/1288 geos-chem issue #1288]
 +
*Incorporates new met field TSOIL1
  
 
|-valign="top"
 
|-valign="top"
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|Update transport tracer simulation for consistency with the tracer gridded component in GEOS
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|Remove differences in GC-Classic due to HEMCO reading REAL8 restart as REAL4
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|Melissa Sulprizio (Harvard)
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−
|TransportTracer simulation
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−
|Simple
+
−
|
+
−
 
+
−
|-valign="top"
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−
|Bug fix for GFAS in GCHP
+
 
|Lizzie Lundgren (Harvard)
 
|Lizzie Lundgren (Harvard)
−
|GCHP
+
|GC-Classic
−
|Simple
+
|Medium
 
|
 
|
 +
*[https://github.com/geoschem/HEMCO/issues/18 hemco issue #18]
  
 
|-valign="top"
 
|-valign="top"
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|Use pointers to internal state for species arrays in GCHP/GEOS
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|Replace ISORROPIA with [https://gmd.copernicus.org/articles/17/2197/2024/ HETPv1.0]
−
|Lizzie Lundgren (Harvard)
+
|Lizzie Lundgren (Harvard)<br>Seb Eastham (ICL)
−
|GCHP/GEOS
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|Aerosol thermodynamics
 
|Medium
 
|Medium
 
|
 
|
 +
*[https://github.com/geoschem/geos-chem/issues/2235 geos-chem issue #2235]
  
 
|-valign="top"
 
|-valign="top"
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|[https://github.com/geoschem/geos-chem/issues/1274 Revision to a rate constant for the C2H4 scheme]
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|Only convert units for species that need it
−
|Kelvin Bates (Harvard)
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|Bob Yantosca (Harvard)
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|Chemistry
+
|Unit conversions
−
|Easy
+
|Medium
 
|
 
|
 +
*[https://github.com/geoschem/geos-chem/pull/2072 geos-chem PR #2072]
  
 
|-valign="top"
 
|-valign="top"
−
|[https://github.com/geoschem/geos-chem/issues/1298 Fix product in HOBr/Cl + S(IV) reactions]
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|Capture all trop and PBL height changes in budget diagnostics
−
|Xuan Wang (CUHK)
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|Chris Holmes (FSU)<br>Lizzie Lundgren (Harvard)
−
|Chemistry
+
|Diagnostics
−
|Easy
+
|Medium
−
|
+
−
 
+
−
|-valign="top"
+
−
|[https://github.com/geoschem/geos-chem/issues/1235 Add MO2 + NO3 reaction]
+
−
|Kelvin Bates (Harvard)
+
−
|Chemistry
+
−
|Easy
+
 
|
 
|
 +
*[https://github.com/geoschem/geos-chem/pull/2103 geos-chem PR 2103]
  
 
|}
 
|}
  
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== Delivered and in the queue ==
+
== Prioritized 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.
+
Features listed in this table are prioritized for integration into GEOS-Chem in the near future.
  
 
{| border=1 cellspacing=0 cellpadding=5  
 
{| border=1 cellspacing=0 cellpadding=5  
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!width="100px"|Model scope
 
!width="100px"|Model scope
 
!width="100px"|Ease of implementation
 
!width="100px"|Ease of implementation
 +
!width="100px"|Delivery status
 
!width="300px"|Notes and References
 
!width="300px"|Notes and References
  
 
|-valign="top"
 
|-valign="top"
−
|[https://pubs.rsc.org/en/content/articlehtml/2022/em/d2em00032f Improvements in modelled Hg0 dry deposition to land]
+
|[https://github.com/geoschem/geos-chem/issues/1867 Online H2 chemistry]
−
|Ari Feinberg (MIT)<br>Noelle Selin (MIT)<br>Thandolwethu Dlamini (MIT)<br>Martin Jiskra (UBasel)<br>Viral Shah (Harvard)
+
|Maria Paula Pérez-Peña (UNSW)<br>Jenny Fisher (UOW)<br>Dylan Millet (UMN)
−
|Hg simulation
+
|Chemistry
−
|Easy
+
|TBD
 +
|Delivered<br>June 2023
 
|
 
|
−
* See [https://github.com/geoschem/geos-chem/pull/1367 geoschem/geos-chem PR #1367]
+
*[https://acp.copernicus.org/articles/22/12367/2022/acp-22-12367-2022.html Pérez-Peña, M.P. et al., ACP, 2022.]
−
* 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.
+
*Implemented in v12.5, needs to be brought up to current version
−
 
+
−
|}
+
−
 
+
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== 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
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−
|-bgcolor="#CCCCCC"
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−
!width="200px"|Feature
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−
!width="200px"|Contributor(s)
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−
!width="100px"|Model scope
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−
!width="100px"|Ease of implementation
+
−
!width="300px"|Notes and References
+
  
 
|-valign="top"
 
|-valign="top"
−
|[https://github.com/geoschem/geos-chem/issues/1288 New soil NOx parameterization]
+
|ALK4 & R4N2 chemistry
−
|Yi Wang (U. Iowa)<br>Jun Wang (U. Iowa)
+
|Jared Brewer (UMN)
−
|Emissions
+
|Chemistry
−
|Simple
+
|TBD
 +
|Not delivered
 
|
 
|
−
*Delivered to GCST (Jun 2022)
+
*[https://github.com/geoschem/geos-chem/issues/1625 geos-chem issue #1625]
 +
*[https://acmg.seas.harvard.edu/files/acmg/files/brewer2022.pdf Brewer, J.F. et al., J. Geophys. Res., submitted 2023.]
  
 
|-valign="top"
 
|-valign="top"
−
|[https://github.com/geoschem/geos-chem/issues/1301 HTAPv3 at 0.1 deg]
+
|Mass flux regridding fix in MAPL
−
|Dandan Zhang (WashU)
+
|Tom Clune (GMAO)<br>Seb Eastham (MIT)
−
|Emissions
+
|GCHP input regridding
−
|Simple
+
|Medium
 
|
 
|
−
*Delivered to GCST (Jul 2022)
 
−
 
−
|-valign="top"
 
−
|Tagged O3 simulation in GCHP
 
−
|Xingpei Yu (PKU)
 
−
|TagO3 simulation
 
−
|Simple
 
 
|
 
|
−
*[https://github.com/geoschem/geos-chem/pull/1167 geoschem/geos-chem PR #1167]
+
*[https://github.com/geoschem/GCHP/issues/377 GCHP Issue #377]
−
* Needs to be updated to a more recent version of GCHP
+
*'''Currently on hold, as the submitted update results in zero diff'''
  
 
|-valign="top"
 
|-valign="top"
−
|[https://doi.org/10.7910/DVN/23BRII Global continental chlorine (pCl and HCl) emissions]
+
|New version of CEDS at 0.1 deg
−
|Bingqing Zhang (Georgia Tech)<br>Pengfei Liu (Georgia Tech)
+
|Dandan Zhang (WashU)
 
|Emissions
 
|Emissions
 
|Simple
 
|Simple
 +
|Delivered
 
|
 
|
−
*Delivered to GCST (Jul 2022)
+
*[https://github.com/geoschem/geos-chem/issues/1745 geos-chem issue #1745]
−
 
+
*'''Currently on hold while an issue with seasonality in the new CEDS data is being investigated by the authors.'''
−
|-valign="top"
+
−
|[https://github.com/geoschem/geos-chem/pull/629 Ecophysiology module in GEOS-Chem for biosphere-atmosphere exchange]
+
−
|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"
+
−
|LPJ land cover (global), fire (W US), dust emissions (SW N America), 1700-2100
+
−
|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"
+
−
|[https://agupubs.onlinelibrary.wiley.com/doi/epdf/10.1029/2006GL026015 Stratospheric HCN chemistry]
+
−
|Armin Kleinbohl (JPL)<br>Debra Weisenstein (Harvard, retired)
+
−
|Chemistry
+
−
|Medium
+
−
|
+
−
*Delivered to GCST (Jun 2020)
+
  
 
|}
 
|}
  
−
== Ready but not delivered ==
+
== Ready to go in ==
  
−
Features listed in this table are ready but have not been delivered to the GEOS-Chem Support Team.
+
Features listed in this table are ready to go in but have either not been delivered or are not yet prioritized for integration into GEOS-Chem.
  
 
{| border=1 cellspacing=0 cellpadding=5  
 
{| border=1 cellspacing=0 cellpadding=5  
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!width="200px"|Contributor(s)
 
!width="200px"|Contributor(s)
 
!width="100px"|Model scope
 
!width="100px"|Model scope
 +
!width="100px"|Delivery status
 
!width="300px"|Notes and References
 
!width="300px"|Notes and References
  
 
|-valign="top"
 
|-valign="top"
−
|Updating VOC fire emissions and adding lumped furan
+
|Geologic emission of ethane and propane
−
|Colette Heald (MIT)<br>Jessica Haskins (MIT)
+
|Matthew Rowlinson and Mat Evans(York)
−
|Chemistry
+
|Emissions
 +
|Delivered<br>Jan 2023
 
|
 
|
−
* 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.
+
*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"
−
|Nitrate photolysis
+
|[https://github.com/geoschem/geos-chem/pull/629 Ecophysiology module in GEOS-Chem for biosphere-atmosphere exchange]
−
|Viral Shah (NASA GMAO)
+
|Joey Lam(CUHK)<br>Amos Tai (CUHK)
−
|Chemistry
+
|Science
 +
|Delivered<br>Feb 2021
 
|
 
|
−
* 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.
+
*[https://github.com/geoschem/geos-chem/pull/629 geos-chem PR #629]
  
 
|-valign="top"
 
|-valign="top"
−
|Online H2 chemistry
+
|LPJ land cover (global), fire (W US), dust emissions (SW N America), 1700-2100
−
|Maria Paula Pérez-Peña (UNSW)<br>Jenny Fisher (UOW)<br>Dylan Millet (UMN)
+
|Yang Li (Baylor University)<br>Loretta Mickley (Harvard)
−
|Chemistry
+
|Emissions
 +
|Delivered<br>Jul 2021
 
|
 
|
 +
*Data involves many files- need to think about temporal frequency
  
 
|-valign="top"
 
|-valign="top"
−
|Alk4 & R4N2 chemistry
+
|[https://github.com/geoschem/geos-chem/issues/550 MEIC (China regional) for 2000-2017 at 0.5x0.625 deg]
−
|Jared Brewer (Harvard)
+
|Shixian Zhai (Harvard)
−
|Chemistry
+
|Emissions
 +
|Delivered
 
|
 
|
−
* 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.
+
*Need permission from Qiang Zhang (Tsinghua U.) to distribute data
  
 
|-valign="top"
 
|-valign="top"
−
|Organic acids (RCOOH)
+
|DMS Chemistry
−
|Katie Travis (NASA)
+
|Linia Tashmim (UC Riverside)<br>William Porter (UC Riverside)
 
|Chemistry
 
|Chemistry
 +
|Not delivered
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Update reactions with new JPL & IUPAC recommendations
+
|Organic acids (RCOOH)
−
|Kelvin Bates (Harvard)
+
|Katie Travis (NASA)
 
|Chemistry
 
|Chemistry
 +
|Not delivered
 
|
 
|
−
* Currently running simulations to check magnitude of changes
 
  
 
|-valign="top"
 
|-valign="top"
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|Kelvin Bates (Harvard)
 
|Kelvin Bates (Harvard)
 
|Chemistry
 
|Chemistry
 +
|Not delivered
 
|
 
|
  
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|Betty Croft (Dalhousie)
 
|Betty Croft (Dalhousie)
 
|Aerosols
 
|Aerosols
 +
|Not delivered
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|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"
 
−
|New version of CEDS at 0.1 deg
 
−
|Emma Knowland (NASA)
 
−
|Emissions
 
−
|
 
−
 
−
|-valign="top"
 
−
|[https://github.com/geoschem/geos-chem/issues/550 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
 
−
 
−
|-valign="top"
 
−
|KORUS-AQ emissions for East Asia
 
−
|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]
 
|[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)
 
|Stephen MacFarlane (UOW)<br>Jenny Fisher (UOW)<br> Hannah Horowitz (U. Illinois)<br>Viral Shah (Harvard)
 
|Hg simulation
 
|Hg simulation
 +
|Not delivered
 
|
 
|
  
−
|-valign-"top"
+
|-valign="top"
 
|WRF-GC Hg simulation
 
|WRF-GC Hg simulation
 
|Xiaotian Xu (Nanjing U.)<br>Yanxu Zhang (Nanjing U.)
 
|Xiaotian Xu (Nanjing U.)<br>Yanxu Zhang (Nanjing U.)
 
|Hg simulation<br>WRF-GC
 
|Hg simulation<br>WRF-GC
 +
|Not delivered
 
|
 
|
  
Line 351: Line 239:
 
|Kaiyun Liu (Tsinghua U.)<br>Qingru Wu (Tsinghua U.)<br>Shuxiao Wang (Tsinghua U.)
 
|Kaiyun Liu (Tsinghua U.)<br>Qingru Wu (Tsinghua U.)<br>Shuxiao Wang (Tsinghua U.)
 
|Hg simulation
 
|Hg simulation
 +
|Not delivered
 
|
 
|
−
* Should be option, not default
+
*Should be option, not default
  
 
|-valign="top"
 
|-valign="top"
Line 358: Line 247:
 
|Chris Holmes (FSU)
 
|Chris Holmes (FSU)
 
|Dry deposition
 
|Dry deposition
 +
|Not delivered
 
|
 
|
 +
 
|}
 
|}
  
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!width="100px"|Model scope
 
!width="100px"|Model scope
 
!width="420px"|Notes and References
 
!width="420px"|Notes and References
−
 
−
 
−
|-valign="top"
 
−
|DMS Chemistry
 
−
|Linia Tashmim (UC Riverside)<br>William Porter (UC Riverside)
 
−
|Chemistry
 
−
|
 
  
 
|-valign="top"
 
|-valign="top"
Line 390: Line 274:
 
|Chemistry
 
|Chemistry
 
|
 
|
 +
 
|-valign="top"
 
|-valign="top"
−
|[https://github.com/geoschem/geos-chem/issues/1094 Stratospheric adjustment with RRTMG in GEOS-Chem]
+
|Initial conditions for CH4 correcting background and stratospheric biases
−
|Seb Eastham (MIT)
+
|Todd Mooring (Harvard)
−
|Science
+
|Methane simulation
 +
|
 +
 
 +
|-valign="top"
 +
|Migrating simple SOA formation from carbon_mod.F90 into the KPP "full-chemistry" mechanism
 +
|Bob Yantosca (Harvard)
 +
|Aerosols<br>Structural
 
|
 
|
 +
*Ongoing
  
 
|-valign="top"
 
|-valign="top"
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|Aerosols
 
|Aerosols
 
|
 
|
−
 
  
 
|-valign="top"
 
|-valign="top"
Line 443: Line 334:
 
|Tailong He (Toronto)<br>Dylan Jones (Toronto)<br>Andrea Molod (NASA GMAO)
 
|Tailong He (Toronto)<br>Dylan Jones (Toronto)<br>Andrea Molod (NASA GMAO)
 
|Convection
 
|Convection
−
|
 
−
 
−
|-valign="top"
 
−
|Update surface methane boundary condition using NOAA flask data
 
−
|Lee Murray (Rochester)
 
−
|Input data
 
−
|
 
−
 
−
|-valign="top"
 
−
|Provide recommended rather than hard-coded scaling factors for online emissions
 
−
|Melissa Sulprizio (Harvard)
 
−
|Emissions
 
 
|
 
|
  
Line 461: Line 340:
 
|Jintai Lin (PKU)
 
|Jintai Lin (PKU)
 
|Emissions
 
|Emissions
−
|Horizontal resolution: 5km, temporal resolution: JJA mean (monthly data will be available at a later stage; please contact us).
+
|
 +
*Horizontal resolution: 5km, temporal resolution: JJA mean  
 +
*monthly data will be available at a later stage; please contact us
  
 
|-valign="top"
 
|-valign="top"
Line 473: Line 354:
 
|Hongjian Weng (PKU) <br> Jintai Lin (PKU)
 
|Hongjian Weng (PKU) <br> Jintai Lin (PKU)
 
|Emissions
 
|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
 
 
|
 
|
  
Line 490: Line 365:
  
 
|-valign="top"
 
|-valign="top"
−
|Gridded EPA (GEPA) version 2 emissions for 2012-2018
+
|Assessment/improvement of OpenMP performance in GC-Classic and HEMCO standalone
−
|Bram Maasakkers (SRON)<br>Erin McDuffie (WashU),<br>Melissa Sulprizio (Harvard)
+
|Bob Yantosca (Harvard)
−
|Emissions<br>CH4 simulation
+
|Model performance
−
|
+
−
 
+
−
|-valign="top"
+
−
|Reduce dimension of analytical inversion
+
−
|Hannah Nesser (Harvard)
+
−
|Adjoint capability
+
 
|
 
|
 +
*Ongoing (will be done as time allows)
  
 
|-valign="top"
 
|-valign="top"
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|Diagnostics
 
|Diagnostics
 
|
 
|
−
 
+
*Can be done following the [https://github.com/geoschem/geos-chem/pull/1569 TOMAS update for GCHP]
−
|-valign="top"
+
−
|GEOS-Chem in CESM 2.3
+
−
|Lizzie Lundgren (Harvard)
+
−
|Interfacing with ESMs
+
−
|
+
  
 
|-valign="top"
 
|-valign="top"
 
|Assess memory leak in GCHP
 
|Assess memory leak in GCHP
−
|Liam Bindle (WashU)<br>Killian Murphy (York)
+
|Killian Murphy (York)
 
|Model performance
 
|Model performance
 
|
 
|
−
 
+
*NOTE: Most memory leaks in GCHP have been fixed by [https://github.com/geoschem/geos-chem/pull/1353 geoschem/geos-chem PR #1353].  Need to assess if any memory leaks still remain.
−
|-valign="top"
+
−
|Point to internal state for species mixing ratios in GCHP and GEOS
+
−
|Lizzie Lundgren (Harvard)<br>Christoph Keller (NASA)
+
−
|Structural
+
−
|
+
−
 
+
−
|-valign="top"
+
−
|Assess precision in GCHP internal state - use R4 for some?
+
−
|Lizzie Lundgren (Harvard)
+
−
|Structural
+
−
|
+
  
 
|-valign="top"
 
|-valign="top"
Line 535: Line 389:
 
|Seb Eastham (MIT)<br>Killian Murphy (York)
 
|Seb Eastham (MIT)<br>Killian Murphy (York)
 
|Model performance
 
|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"
 
|-valign="top"
 
|Improve run directory templating and creation with init_rd.sh and shared directories
 
|Improve run directory templating and creation with init_rd.sh and shared directories
−
|Liam Bindle (WashU)
+
|Jourdan He (WashU)
 
|Run directories
 
|Run directories
−
|
 
−
 
−
|-valign="top"
 
−
|Expand SpeciesConc diagnostic unit options and rename
 
−
|Melissa Sulprizio (Harvard)
 
−
|Diagnostics
 
 
|
 
|
  
Line 565: Line 401:
 
|GCST?
 
|GCST?
 
|Documentation
 
|Documentation
−
|
 
−
 
−
|-valign="top"<
 
−
|Upgrade Fast-JX to Cloud-J
 
−
|Lizzie Lundgren (Harvard)
 
−
|Structural
 
−
|
 
 
|
 
|
  
Line 615: Line 444:
 
|Eloise Marais (UCL)
 
|Eloise Marais (UCL)
 
|Chemistry
 
|Chemistry
−
|
 
−
 
−
|-valign="top"
 
−
|Parameterized effective radius
 
−
|Haihui Zhu (WashU)
 
−
|Aerosols
 
 
|
 
|
  
Line 711: Line 534:
 
|Melissa Sulprizio (Harvard)<br>Tia Scarpelli (U. Edinburgh)<br>Zichong Chen (Harvard)
 
|Melissa Sulprizio (Harvard)<br>Tia Scarpelli (U. Edinburgh)<br>Zichong Chen (Harvard)
 
|Emissions<br>CH4 simulation
 
|Emissions<br>CH4 simulation
−
|
 
−
 
−
|-valign="top"
 
−
|Separate mixing and emissions
 
−
|Bob Yantosca (Harvard)
 
−
|Structural
 
 
|
 
|
  
Line 722: Line 539:
 
|Modularization of aerosols code for interface with GOCART in GEOS
 
|Modularization of aerosols code for interface with GOCART in GEOS
 
|Christoph Keller (GMAO)
 
|Christoph Keller (GMAO)
−
|Structural
 
−
|
 
−
 
−
|-valign="top"
 
−
|Migrating simple SOA formation from carbon_mod.F90 into the KPP "full-chemistry" mechanism
 
−
|Bob Yantosca (Harvard)
 
 
|Structural
 
|Structural
 
|
 
|
Line 735: Line 546:
 
|Seb Eastham (MIT)
 
|Seb Eastham (MIT)
 
|Model performance
 
|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
 
 
|
 
|
  
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|Katie Travis (NASA)<br>Becky Alexander (UT)
 
|Katie Travis (NASA)<br>Becky Alexander (UT)
 
|Chemistry
 
|Chemistry
−
|
 
−
 
−
|-valign="top"
 
−
|ISORROPIA-lite
 
−
|Becky Alexander (UW)
 
−
|Aerosols
 
 
|
 
|
  
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|Dry deposition
 
|Dry deposition
 
|
 
|
−
 
−
|-valign="top"
 
−
|Extend the IMI system to other trace gases
 
−
|Lucas Estrada (Harvard)
 
−
|Adjoint capabilities
 
−
|
 
−
 
  
 
|-valign="top"
 
|-valign="top"
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|}
 
|}
−
 
−
----------------
 
−
 
−
'''''[[Main_Page|GEOS-Chem Main Page]] | [[GCHP_Main_Page|GCHP Main Page]]'''''
 

Latest revision as of 20:02, 16 April 2024

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.

Merged and awaiting release

See the links below for items merged and awaiting release.

Mergeable at any time Version in development
GEOS-Chem no-diff-to-benchmark GEOS-Chem 14.4.0

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
KORUS-AQ emissions for East Asia (as an option) Katie Travis (NASA) Emissions Simple
Global continental chlorine (pCl and HCl) emissions Bingqing Zhang (Georgia Tech)
Pengfei Liu (Georgia Tech) 		Emissions Simple
Parameterization of SNA and OM dry size Haihui Zhu (WashU) Aerosols Medium
New soil NOx parameterization Yi Wang (U. Iowa)
Jun Wang (U. Iowa) 		Emissions Medium
Remove differences in GC-Classic due to HEMCO reading REAL8 restart as REAL4 Lizzie Lundgren (Harvard) GC-Classic Medium
Replace ISORROPIA with HETPv1.0 Lizzie Lundgren (Harvard)
Seb Eastham (ICL) 		Aerosol thermodynamics Medium
Only convert units for species that need it Bob Yantosca (Harvard) Unit conversions Medium
Capture all trop and PBL height changes in budget diagnostics Chris Holmes (FSU)
Lizzie Lundgren (Harvard) 		Diagnostics Medium

Prioritized and in the queue

Features listed in this table are prioritized for integration into GEOS-Chem in the near future.

Feature Contributor(s) Model scope Ease of implementation Delivery status Notes and References
Online H2 chemistry Maria Paula Pérez-Peña (UNSW)
Jenny Fisher (UOW)
Dylan Millet (UMN) 		Chemistry TBD Delivered
June 2023
ALK4 & R4N2 chemistry Jared Brewer (UMN) Chemistry TBD Not delivered
Mass flux regridding fix in MAPL Tom Clune (GMAO)
Seb Eastham (MIT) 		GCHP input regridding Medium
  • GCHP Issue #377
  • Currently on hold, as the submitted update results in zero diff
New version of CEDS at 0.1 deg Dandan Zhang (WashU) Emissions Simple Delivered
  • geos-chem issue #1745
  • Currently on hold while an issue with seasonality in the new CEDS data is being investigated by the authors.

Ready to go in

Features listed in this table are ready to go in but have either not been delivered or are not yet prioritized for integration into GEOS-Chem.

Feature Contributor(s) Model scope Delivery status Notes and References
Geologic emission of ethane and propane Matthew Rowlinson and Mat Evans(York) Emissions Delivered
Jan 2023
Ecophysiology module in GEOS-Chem for biosphere-atmosphere exchange Joey Lam(CUHK)
Amos Tai (CUHK) 		Science Delivered
Feb 2021
LPJ land cover (global), fire (W US), dust emissions (SW N America), 1700-2100 Yang Li (Baylor University)
Loretta Mickley (Harvard) 		Emissions Delivered
Jul 2021
  • Data involves many files- need to think about temporal frequency
MEIC (China regional) for 2000-2017 at 0.5x0.625 deg Shixian Zhai (Harvard) Emissions Delivered
  • Need permission from Qiang Zhang (Tsinghua U.) to distribute data
DMS Chemistry Linia Tashmim (UC Riverside)
William Porter (UC Riverside) 		Chemistry Not delivered
Organic acids (RCOOH) Katie Travis (NASA) Chemistry Not delivered
Improve carbon & nitrogen conservation in reactions Kelvin Bates (Harvard) Chemistry Not delivered
Blowing snow sea salt in TOMAS Betty Croft (Dalhousie) Aerosols Not delivered
Australian anthropogenic Hg emissions Stephen MacFarlane (UOW)
Jenny Fisher (UOW)
Hannah Horowitz (U. Illinois)
Viral Shah (Harvard) 		Hg simulation Not delivered
WRF-GC Hg simulation Xiaotian Xu (Nanjing U.)
Yanxu Zhang (Nanjing U.) 		Hg simulation
WRF-GC 		Not delivered
Updated HgII gas-partical partitioning Kaiyun Liu (Tsinghua U.)
Qingru Wu (Tsinghua U.)
Shuxiao Wang (Tsinghua U.) 		Hg simulation Not delivered
  • Should be option, not default
Dry deposition to F90 (readability) Chris Holmes (FSU) Dry deposition Not delivered

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
PPN+hv, PPN+OH Robert Ryan (UCL) Chemistry
MBO Michael Vermeuel (UMN) Chemistry
Initial conditions for CH4 correcting background and stratospheric biases Todd Mooring (Harvard) Methane simulation
Migrating simple SOA formation from carbon_mod.F90 into the KPP "full-chemistry" mechanism Bob Yantosca (Harvard) Aerosols
Structural
  • Ongoing
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
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
Canopy Physics Model Sam Silva (MIT) Emissions &
Science
Assessment/improvement of OpenMP performance in GC-Classic and HEMCO standalone Bob Yantosca (Harvard) Model performance
  • Ongoing (will be done as time allows)
Retire all BPCH diagnostics Bob Yantosca (Harvard) Diagnostics
Assess memory leak in GCHP Killian Murphy (York) Model performance
Hybrid MPI-OpenMP in GCHP Seb Eastham (MIT)
Killian Murphy (York) 		Model performance
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

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
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
Modularization of aerosols code for interface with GOCART in GEOS Christoph Keller (GMAO) Structural
Improve load balancing in GCHP Seb Eastham (MIT) Model performance
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
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
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
TOMAS WRF-GC in regional Thailand simulation Win Trivitayanurak (Chulalongkorn U) Aerosols
Retrieved from "https://wiki.seas.harvard.edu/geos-chem/index.php?title=GEOS-Chem_model_development_priorities&oldid=53306"