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]]'''''
 
 
 
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]].
 
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]].
 
== Release schedule ==
 
 
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.
 
  
 
== 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"
!width="200px"|Patch version in development
+
!width="300px"|Mergeable at any time
!width="200px"|Major version in development
+
!width="200px"|Version in development
  
 
|-valign="top"
 
|-valign="top"
|align="center"| -
+
|align="center"|'''[[GEOS-Chem no-diff-to-benchmark]]'''
|align="center"|'''[[GEOS-Chem 14.2.0]]'''
+
|align="center"|'''[[GEOS-Chem 14.4.0]]'''
  
 
|}
 
|}
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== Feature integration in progress ==
 
== 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.  
+
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  
Line 34: Line 28:
 
!width="300px"|Notes and References
 
!width="300px"|Notes and References
  
 
+
|-valign="top"
|-valign="top"<
+
|[https://doi.org/10.7910/DVN/23BRII Global continental chlorine (pCl and HCl) emissions]
|Add Cloud-J as git submodule and option for computing photolysis rates
+
|Bingqing Zhang (Georgia Tech)<br>Pengfei Liu (Georgia Tech)
|Lizzie Lundgren (Harvard)
+
|Emissions
|Photolysis
+
|Simple
|Complicated
+
 
|
 
|
*Validation pending
 
 
|-valign="top"<
 
|Restructure photolysis to abstract original Fast-JX
 
|Lizzie Lundgren (Harvard)
 
|Structural
 
|Complicated
 
|
 
*Slated for 14.2.0
 
*Preliminary step before adding Cloud-J
 
  
 
|-valign="top"
 
|-valign="top"
|Migrating simple SOA formation from carbon_mod.F90 into the KPP "full-chemistry" mechanism
+
|[https://github.com/geoschem/geos-chem/issues/1747 Parameterization of SNA and OM dry size]
|Bob Yantosca (Harvard)
+
|Haihui Zhu (WashU)
|Structural
+
|Aerosols
|Complicated
+
|
+
*Ongoing
+
 
+
 
+
|-valign="top"<
+
|GCHP bug fixes and run directory updates
+
|Lizzie Lundgren (Harvard)
+
|GCHP
+
 
|Medium
 
|Medium
 
|
 
|
*Slated for 14.2.0
+
*[https://egusphere.copernicus.org/preprints/2022/egusphere-2022-1292/ Zhu et al., EGUsphere, submitted 2023.]
*[https://github.com/geoschem/geos-chem/pull/1724 geoschem/geos-chem PR #1724]
+
*[https://github.com/geoschem/geos-chem/pull/1902 geos-chem PR #1902]
  
 
|-valign="top"
 
|-valign="top"
|Assessment/improvement of OpenMP performance in GC-Classic and HEMCO standalone
+
|[https://github.com/geoschem/geos-chem/issues/1288 New soil NOx parameterization]
|Bob Yantosca (Harvard)
+
|Yi Wang (U. Iowa)<br>Jun Wang (U. Iowa)
|Model performance
+
|Emissions
 
|Medium
 
|Medium
 
|
 
|
*Ongoing (will be done as time allows)
+
*[https://github.com/geoschem/geos-chem/issues/1288 geos-chem issue #1288]
 +
*Incorporates new met field TSOIL1
  
 
|-valign="top"
 
|-valign="top"
|TOMAS in GCHP
+
|Remove differences in GC-Classic due to HEMCO reading REAL8 restart as REAL4
|Betty Croft (WashU)
+
|Lizzie Lundgren (Harvard)
|Aerosols
+
|GC-Classic
 
|Medium
 
|Medium
 
|
 
|
*Slated for 14.2.0
+
*[https://github.com/geoschem/HEMCO/issues/18 hemco issue #18]
*[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"
|[https://github.com/geoschem/geos-chem/issues/1715 Update transport tracer simulation for consistency with the tracer gridded component in GEOS]
+
|Capture all trop and PBL height changes in budget diagnostics
|Melissa Sulprizio (Harvard)
+
|Chris Holmes (FSU)<br>Lizzie Lundgren (Harvard)
|TransportTracer simulation
+
|Diagnostics
 
|Medium
 
|Medium
 
|
 
|
 +
*[https://github.com/geoschem/geos-chem/pull/2103 geos-chem PR 2103]
  
|-valign="top"
+
|}
|[https://github.com/geoschem/geos-chem/issues/1529 Bug fix: Initialize CO2 to a relevant value for full-chemistry]
+
|Mike Long (GMAO)
+
|Chemistry
+
|Simple
+
|
+
*Slated for 14.2.0
+
  
|-valign="top"
+
== Prioritized and in the queue ==
|Retire all BPCH diagnostics
+
|Bob Yantosca (Harvard)
+
|Diagnostics
+
|Simple
+
|
+
*Slated for 14.2.0
+
* Can be done immediately following the [https://github.com/geoschem/geos-chem/pull/1569 TOMAS update for GCHP]
+
  
|-valign="top"
+
Features listed in this table are prioritized for integration into GEOS-Chem in the near future.
|[https://github.com/geoschem/geos-chem/issues/331 Provide climatologies for open fire emissions]
+
|Melissa Sulprizio (Harvard)
+
|Emissions
+
|Simple
+
|
+
  
|-valign="top"
+
{| border=1 cellspacing=0 cellpadding=5
|[https://github.com/geoschem/geos-chem/issues/655 Climatologies for lightning NOx]
+
|-bgcolor="#CCCCCC"
|Lee Murray (Rochester)
+
!width="200px"|Feature
|Emissions
+
!width="200px"|Contributor(s)
|Simple
+
!width="100px"|Model scope
|
+
!width="100px"|Ease of implementation
*See [https://github.com/geoschem/geos-chem/pull/1628 geoschem/geos-chem PR #1628]
+
!width="100px"|Delivery status
 +
!width="300px"|Notes and References
  
 
|-valign="top"
 
|-valign="top"
|Update surface methane boundary condition using NOAA flask data
+
|ALK4 & R4N2 chemistry
|Lee Murray (Rochester)
+
|Jared Brewer (UMN)
|Input data
+
|Chemistry
|Simple
+
|TBD
 +
|Not delivered
 
|
 
|
 +
*[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., 2023.]
  
 
|-valign="top"
 
|-valign="top"
|[https://agupubs.onlinelibrary.wiley.com/doi/full/10.1029/2022JG006908 Methane emissions from hydropower reservoirs]
+
|Mass flux regridding fix in MAPL
|Kyle Delwiche (UC Berkeley)<br>Melissa Sulprizio (Harvard)
+
|Tom Clune (GMAO)<br>Seb Eastham (MIT)
|CH4 simulation
+
|GCHP input regridding
|Simple
+
|Medium
 
|
 
|
 
|-valign="top"
 
|Updated loss frequencies for CH4 simulation
 
|Todd Mooring (Harvard)
 
|CH4 simulation
 
|Simple
 
 
|
 
|
 +
*[https://github.com/geoschem/GCHP/issues/377 GCHP Issue #377]
 +
*'''Currently on hold, as the submitted update results in zero diff'''
  
 
|-valign="top"
 
|-valign="top"
|[https://github.com/geoschem/geos-chem/issues/1646 Bug fix: Restore vertical allocation of CEDS energy and industry emissions]
+
|New version of CEDS at 0.1 deg
|Melissa Sulprizio (Harvard)
+
|Dandan Zhang (WashU)
 
|Emissions
 
|Emissions
 
|Simple
 
|Simple
 +
|Delivered
 
|
 
|
*[https://github.com/geoschem/geos-chem/pull/1712 geoschem/geos-chem PR #1712]
+
*[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"
+
|Move Aerosol_Mod module variables to State_Chm
+
|Lizzie Lundgren (Harvard)
+
|Aerosols
+
|Simple
+
|
+
  
 
|}
 
|}
  
== 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.
+
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"|Ease of implementation
+
!width="100px"|Delivery status
 
!width="300px"|Notes and References
 
!width="300px"|Notes and References
  
 
|-valign="top"
 
|-valign="top"
|[https://doi.org/10.7910/DVN/23BRII Global continental chlorine (pCl and HCl) emissions]
+
|KORUS-AQ emissions for East Asia (as an option)
|Bingqing Zhang (Georgia Tech)<br>Pengfei Liu (Georgia Tech)
+
|Katie Travis (NASA)
 
|Emissions
 
|Emissions
 
|Simple
 
|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"
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|Matthew Rowlinson and Mat Evans(York)
 
|Matthew Rowlinson and Mat Evans(York)
 
|Emissions
 
|Emissions
|Simple
+
|Delivered<br>Jan 2023
 
|
 
|
* 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
+
*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"
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|Joey Lam(CUHK)<br>Amos Tai (CUHK)
 
|Joey Lam(CUHK)<br>Amos Tai (CUHK)
 
|Science
 
|Science
|Simple
+
|Delivered<br>Feb 2021
 
|
 
|
*Delivered to GCST (Feb 2021)
+
*[https://github.com/geoschem/geos-chem/pull/629 geos-chem PR #629]
* [https://github.com/geoschem/geos-chem/pull/629 geoschem/geos-chem #629]
+
  
 
|-valign="top"
 
|-valign="top"
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|Yang Li (Baylor University)<br>Loretta Mickley (Harvard)
 
|Yang Li (Baylor University)<br>Loretta Mickley (Harvard)
 
|Emissions
 
|Emissions
|Simple
+
|Delivered<br>Jul 2021
 
|
 
|
*Data files delivered to GCST (July 2021)
+
*Data involves many files- need to think about temporal frequency
*Data are quite large - need to think about storage, compression
+
 
+
|}
+
 
+
== 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="420px"|Notes and References
+
  
 
|-valign="top"
 
|-valign="top"
|Online H2 chemistry
+
|[https://github.com/geoschem/geos-chem/issues/1867 Online H2 chemistry]
 
|Maria Paula Pérez-Peña (UNSW)<br>Jenny Fisher (UOW)<br>Dylan Millet (UMN)
 
|Maria Paula Pérez-Peña (UNSW)<br>Jenny Fisher (UOW)<br>Dylan Millet (UMN)
 
|Chemistry
 
|Chemistry
 +
|Delivered<br>June 2023
 
|
 
|
* Pérez-Peña, M.P. et al., ACP, 2022.
+
*[https://acp.copernicus.org/articles/22/12367/2022/acp-22-12367-2022.html Pérez-Peña, M.P. et al., ACP, 2022.]
* [https://acp.copernicus.org/articles/22/12367/2022/acp-22-12367-2022.html DOI: 10.5194/acp-22-12367-2022]
+
*Implemented in v12.5, needs to be brought up to current version
 
+
|-valign="top"
+
|Alk4 & R4N2 chemistry
+
|Jared Brewer (Harvard)
+
|Chemistry
+
|
+
* Brewer, J.F. et al., J. Geophys. Res., submitted 2022.  
+
* [https://acmg.seas.harvard.edu/files/acmg/files/brewer2022.pdf Click here for PDF]
+
  
 
|-valign="top"
 
|-valign="top"
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|Linia Tashmim (UC Riverside)<br>William Porter (UC Riverside)
 
|Linia Tashmim (UC Riverside)<br>William Porter (UC Riverside)
 
|Chemistry
 
|Chemistry
 +
|Not delivered
 
|
 
|
  
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|Katie Travis (NASA)
 
|Katie Travis (NASA)
 
|Chemistry
 
|Chemistry
 +
|Not delivered
 
|
 
|
 
|-valign="top"
 
|Update reactions with new JPL & IUPAC recommendations
 
|Kelvin Bates (Harvard)
 
|Chemistry
 
|
 
* 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"
+
|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
+
 
|
 
|
  
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|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
 
|
 
|
  
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|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 321: Line 214:
 
|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"
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|Chris Holmes (FSU)
 
|Chris Holmes (FSU)
 
|Dry deposition
 
|Dry deposition
 +
|Not delivered
 
|
 
|
 +
 
|}
 
|}
  
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|-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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|-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
 
|
 
|
 +
*Ongoing (will be done as time allows)
  
 
|-valign="top"
 
|-valign="top"
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|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.
+
*NOTE: Most memory leaks in GCHP have been fixed by [https://github.com/geoschem/geos-chem/pull/1353 geoschem/geos-chem PR #1353]. Will wait until MAPL3 to further assess.
  
 
|-valign="top"
 
|-valign="top"
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|-valign="top"
 
|-valign="top"
|Improve run directory templating and creation with init_rd.sh and shared directories
+
|Improve pressure handling in GCHP advection
|Jourdan He (WashU)
+
|Seb Eastham (MIT)<br>Yuanjian Zhang (WashU)
|Run directories
+
|GCHP
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Table of CTM and online GCM properties: GCHP, GCC, GEOS-CTM, GC-Nested, online GEOS, GEOS-replay, etc
+
|Use ExtData2G as default GCHP input module
|GCST?
+
|Lizzie Lundgren (Harvard)
|Documentation
+
|GCHP
|
+
|Will replace ExtData.rc with yaml file
  
 
|}
 
|}
Line 508: Line 412:
 
|Eloise Marais (UCL)
 
|Eloise Marais (UCL)
 
|Chemistry
 
|Chemistry
|
 
 
|-valign="top"
 
|Parameterized effective radius
 
|Haihui Zhu (WashU)
 
|Aerosols
 
 
|
 
|
  
Line 634: Line 532:
 
|Seb Eastham (MIT)<br>Clara Orbe (NASA GISS)<br>Andrew Schuh (CSU)
 
|Seb Eastham (MIT)<br>Clara Orbe (NASA GISS)<br>Andrew Schuh (CSU)
 
|Transport
 
|Transport
 +
|
 +
 +
|-valign="top"
 +
|MAPL version 3
 +
|Lizzie Lundgren (Harvard)
 +
|GCHP
 +
|Will include History wildcard handling in GCHP
 +
 +
 +
|-valign="top"
 +
|Migrate benchmark meteorology from MERRA2 to GEOS-IT
 +
|GCST
 +
|Benchmarking
 
|
 
|
  
Line 648: Line 559:
 
!width="100px"|Model scope
 
!width="100px"|Model scope
 
!width="420px"|Notes and References
 
!width="420px"|Notes and References
 
|-valign="top"
 
|[https://github.com/geoschem/geos-chem/issues/1288 New soil NOx parameterization]
 
|Yi Wang (U. Iowa)<br>Jun Wang (U. Iowa)
 
|Emissions
 
|
 
*See [https://github.com/geoschem/geos-chem/issues/1288 geoschem/geos-chem #1288]
 
*[https://github.com/geoschem/geos-chem/issues/1288#issuecomment-1255103962 NOTE: This feature has been tabled for the time being.]
 
  
 
|-valign="top"
 
|-valign="top"
Line 703: Line 606:
 
|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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|}
 
|}
 
 
----------------
 
 
'''''[[Main_Page|GEOS-Chem Main Page]] | [[GCHP_Main_Page|GCHP Main Page]]'''''
 

Revision as of 16:59, 30 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
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
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
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
KORUS-AQ emissions for East Asia (as an option) Katie Travis (NASA) Emissions Simple
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
Online H2 chemistry Maria Paula Pérez-Peña (UNSW)
Jenny Fisher (UOW)
Dylan Millet (UMN)
Chemistry Delivered
June 2023
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)
Assess memory leak in GCHP Killian Murphy (York) Model performance
Hybrid MPI-OpenMP in GCHP Seb Eastham (MIT)
Killian Murphy (York)
Model performance
Improve pressure handling in GCHP advection Seb Eastham (MIT)
Yuanjian Zhang (WashU)
GCHP
Use ExtData2G as default GCHP input module Lizzie Lundgren (Harvard) GCHP Will replace ExtData.rc with yaml file

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
MAPL version 3 Lizzie Lundgren (Harvard) GCHP Will include History wildcard handling in GCHP


Migrate benchmark meteorology from MERRA2 to GEOS-IT GCST Benchmarking

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