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]]'''''
 
'''''[[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 Working Groups and the Steering Committee.
+
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]].
 +
 
 +
== 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 ==
 +
 +
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="200px"|Feature
+
!width="200px"|Patch version in development
!width="200px"|Contributor(s)
+
!width="200px"|Minor version in development
!width="100px"|Model scope
+
!width="300px"|Notes
+
  
 
|-valign="top"
 
|-valign="top"
|TBD
+
|align="center"|'''[[GEOS-Chem 13.3.1]]'''
|
+
|align="center"|'''[[GEOS-Chem 13.3.0]]'''
|
+
|
+
  
 
|}
 
|}
  
 
== 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.
  
 
{| 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="200px"|Notes
+
!width="300px"|Notes
  
 
|-valign="top"
 
|-valign="top"
|[https://github.com/geoschem/geos-chem/issues/547 Update US emissions to NEI2016]
+
|[https://github.com/geoschem/geos-chem/pull/459 Updates to enable automated run directory creation]
|Barron Henderson (EPA)<br>Lyssa Freese (MIT)
+
|Liam Bindle (GCST)<br>Melissa Sulprizio (GCST)
|Emissions
+
|Run directory
 +
|Medium
 
|
 
|
 +
 +
|-valign="top"
 +
|Upgrade Fast-JX to Cloud-J
 +
|Lizzie Lundgren (GCST)
 +
|Structural
 +
|Difficult
 
|
 
|
*Files available at [ftp://newftp.epa.gov/Air/aqmg/global/NEI2016fh/ this ftp site]. Barron writes, "They have not yet been used in a publication, so I caution users to look for anything and report back."
+
*See [https://github.com/geoschem/cloud-j geoschem/cloud-j]
  
 
|-valign="top"
 
|-valign="top"
|[https://data.pnnl.gov/dataset/CEDS-4-21-21 CEDS v2 emissions through 2019]
+
|Migrating sulfate chemistry into KPP
|Patrick Campbell (NOAA-ARL)
+
|Mike Long (GCST)
|Emissions
+
|Chemistry &<br>Structural
 +
|Difficult
 
|
 
|
 +
*Complete but needs validation & further testing
 +
 +
|-valign="top"
 +
|[http://acmg.seas.harvard.edu/publications/2021/shah_est_2021.pdf Updated Hg chemistry in KPP]
 +
|Viral Shah (Harvard)<br>Colin Thackray (Harvard)<br>Mike Long (Harvard)
 +
|Chemistry
 +
|Medium
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|[http://globalchange.bnu.edu.cn/research/laiv6 Updated Yuan/BNU MODIS LAI product (2000-2019)]
+
|Add capability to use mass fluxes in advection
|Jenny Fisher (U. Wollongong)
+
|Sebastian Eastham (MIT)
|Emissions<br>Dry deposition
+
|Transport
 +
|Easy
 
|
 
|
 +
*Identified as a priority for GC 13, but not yet delivered
 +
*GCHP only
 +
 +
 +
|-valign="top"
 +
|[https://github.com/geoschem/geos-chem/issues/331 Provide climatologies for open fire emissions]
 +
|Melissa Sulprizio (GCST)
 +
|Emissions
 +
|Easy
 
|
 
|
*Processing scripts delivered to GCST (Aug 2020)
 
  
 
|-valign="top"
 
|-valign="top"
|[https://github.com/geoschem/geos-chem/pull/459 Updates to enable automated run directory creation]
+
|[https://github.com/geoschem/geos-chem/issues/655 Climatologies for lightning NOx], [https://github.com/geoschem/geos-chem/issues/331 biomass burning], and [https://github.com/geoschem/geos-chem/issues/656 volcanoes]
|GCST
+
|Lee Murray (Rochester)<br>Melissa Sulprizio (GCST)
|Run directory
+
|Emissions
 +
|Easy
 
|
 
|
 +
 +
|-valign="top"
 +
|[https://github.com/geoschem/geos-chem/pull/945 Add option for driving GEOS-Chem with native GEOS meteorological files]
 +
|Liam Bindle (GCST)
 +
|Structural
 +
|Easy
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|[https://github.com/geoschem/geos-chem/issues/666 Modularize FAST-JX]
+
|Change State_Chm%Species from 4D to vector of 3D arrays and point them to internal state in GCHP
 
|Lizzie Lundgren (GCST)
 
|Lizzie Lundgren (GCST)
|Structural<br>FAST-JX
+
|Structural
 
|Medium
 
|Medium
 
|
 
|
 
 
 
|}
 
|}
  
 
== Feature integration in the queue ==
 
== Feature integration in the queue ==
 +
 +
Features listed in this table have been delivered to the GEOS-Chem Support Team and are prioritized to be integrated into GEOS-Chem in the near future.
  
 
{| border=1 cellspacing=0 cellpadding=5  
 
{| 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="200px"|Notes
+
!width="300px"|Notes
  
 
|-valign="top"
 
|-valign="top"
!colspan="5" bgcolor="#CCFFFF"|Updates that will affect full-chemistry simulations
+
|Add PM10 diagnostic
 
+
|Aerosols WG
|-valign="top"
+
|Diagnostic
|[https://gmd.copernicus.org/articles/13/2569/2020/ Canopy Physics Model]
+
|Easy
|Sam Silva (MIT)
+
|Science
+
 
|
 
|
|
 
 
|-valign="top"
 
|[https://gmd.copernicus.org/preprints/gmd-2020-380/ Dust emissions from Meng et al. (in review)]
 
|Jun Meng (WUStL)
 
|Emissions
 
|
 
|
 
 
|-valign="top"
 
|[https://gmd.copernicus.org/articles/13/2879/2020/ Improved wet scavenging from Luo et al. (2020)] (as option)
 
|Gan Luo (Albany)<br>Fangqun Yu (Albany)
 
|Wet deposition
 
|
 
|
 
*Delivered to GCST (Nov 2020)
 
*See [https://github.com/geoschem/geos-chem/pull/522 geoschem/geos-chem PR #522]
 
*These updates will replace the Luo et al. (2019) option
 
  
 
|-valign="top"
 
|-valign="top"
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|Bo Zhang
 
|Bo Zhang
 
|Emissions
 
|Emissions
 +
|Easy
 
|
 
|
|
+
*Existing Rn emissions will remain as an option
*The existing Rn emissions will remain as an option
+
*Submitted code updates built on v11-02f
*Data are available at https://doi.org/10.5281/zenodo.3942287
+
*Original data at https://doi.org/10.5281/zenodo.3942287
  
 
|-valign="top"
 
|-valign="top"
|[[Grid-independent_emissions|Updated offline emissions]]
+
|[https://acp.copernicus.org/articles/19/7055/2019/ Joint CO2-CO-CH4-OCS simulation]
|Yanshun Li (WUStL)<br>Hongjian Weng (PKU)
+
|Beata Bukosa (NIWA)<br>Kevin Bowman (JPL)
|Emissions
+
|
+
|
+
 
+
|-valign="top"
+
|Provide recommended rather than hard-coded scaling factors for online emissions
+
|GCST
+
|Emissions
+
|
+
|
+
 
+
|-valign="top"
+
|[https://github.com/geoschem/geos-chem/issues/331 Provide climatologies for lightning NOx, volcano, and open fire emissions]
+
|GCST
+
|Emissions
+
|
+
|
+
 
+
|-valign="top"
+
|[https://www.sciencedirect.com/science/article/abs/pii/S1352231019305138?via%3Dihub Trace metal simulation]
+
|Junwei Xu (Dalhousie)
+
 
|Specialty simulation
 
|Specialty simulation
 +
|Medium
 
|
 
|
|
+
*See [https://github.com/geoschem/geos-chem/issues/654 geoschem/geos-chem #654]
*Delivered to GCST (Nov 2020)
+
*Ideally implemented as a chemical mechanism in KPP
*See [https://github.com/geoschem/geos-chem/pull/511 geoschem/geos-chem PR #511]
+
 
+
|-valign="top"
+
|[https://github.com/geoschem/geos-chem/issues/560 C2H4 and C2H2 chemistry]
+
|Kelvin Bates (Harvard)<br>Ke Li (Harvard)
+
|Chemistry
+
|
+
|
+
 
+
|-valign="top"
+
|[http://acmg.seas.harvard.edu/publications/2020/moch_2020_hms_global.pdf HMS chemistry]
+
|Jonathan Moch (Harvard)
+
|Chemistry
+
|
+
|
+
*Delivered to GCST (Sep 2020)
+
*See [https://github.com/geoschem/geos-chem/pull/456 geoschem/geos-chem PR #456]
+
 
+
|-
+
|[https://acp.copernicus.org/articles/17/3699/2017/ Blowing snow emissions of sea salt and sea salt bromide]
+
|Lyatt Jaegle (UW)
+
|Emissions
+
|
+
|
+
*Delivered to GCST (Jun 2020)
+
*See [https://github.com/geoschem/geos-chem/pull/356 geoschem/geos-chem PR #356]
+
 
+
|-valign="top"
+
|[https://www.pnas.org/content/117/42/26076 Updated aerosol dry deposition]
+
|Jeff Pierce (CSU)
+
|Dry deposition
+
|
+
|
+
*See [https://github.com/geoschem/geos-chem/issues/604 geoschem/geos-chem #604]
+
  
 
|-valign="top"
 
|-valign="top"
 
|[https://gmd.copernicus.org/articles/13/2475/2020/gmd-13-2475-2020.pdf Adaptive chemical solver] (as option)
 
|[https://gmd.copernicus.org/articles/13/2475/2020/gmd-13-2475-2020.pdf Adaptive chemical solver] (as option)
|Lu Shen (Harvard)
+
|Mike Long (Harvard) <br> Haipeng Lin (Harvard)  
 
|Chemistry
 
|Chemistry
 +
|Difficult
 
|
 
|
|
+
*In testing
 
+
|-valign="top"
+
|[https://acp.copernicus.org/articles/19/7055/2019/ Joint CO2-CO-CH4-OCS simulation]
+
|Beata Bukosa (NIWA)<br>Kevin Bowman (JPL)
+
|Specialty simulation
+
|
+
|
+
*See [https://github.com/geoschem/geos-chem/issues/654 geoschem/geos-chem #654]
+
  
 
|}
 
|}
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== Feature integration not yet prioritized ==
 
== Feature integration not yet prioritized ==
  
 +
Features listed in this table have been delivered to the GEOS-Chem Support Team but are not yet prioritized for integrating into the model.
  
 
{| border=1 cellspacing=0 cellpadding=5  
 
{| border=1 cellspacing=0 cellpadding=5  
Line 205: Line 161:
 
!width="100px"|Model scope
 
!width="100px"|Model scope
 
!width="100px"|Ease of implementation
 
!width="100px"|Ease of implementation
!width="200px"|Notes
+
!width="300px"|Notes
 
+
|-valign="top"
+
|[https://github.com/geoschem/geos-chem/issues/559 Implement H2 chemistry in UCX]
+
|Chris Holmes (FSU)
+
|Chemistry
+
|
+
|
+
  
 
|-valign="top"
 
|-valign="top"
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|Armin Kleinbohl (JPL)<br>Debra Weisenstein (Harvard, retired)
 
|Armin Kleinbohl (JPL)<br>Debra Weisenstein (Harvard, retired)
 
|Chemistry
 
|Chemistry
|
+
|Medium
 
|
 
|
 
*Delivered to GCST (Jun 2020)
 
*Delivered to GCST (Jun 2020)
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|Sam Silva (MIT)
 
|Sam Silva (MIT)
 
|Emissions
 
|Emissions
|
+
|Medium
 
|
 
|
 
*Implementation details may be found at https://zenodo.org/record/3614062#.XzvrH5NKjOR
 
*Implementation details may be found at https://zenodo.org/record/3614062#.XzvrH5NKjOR
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|Xu Yue (NUIST)
 
|Xu Yue (NUIST)
 
|Science
 
|Science
|
+
|Easy
 
|
 
|
 
*See [https://github.com/geoschem/geos-chem/issues/425 geoschem/geos-chem #425]
 
*See [https://github.com/geoschem/geos-chem/issues/425 geoschem/geos-chem #425]
Line 242: Line 191:
 
|Joey Lam(CUHK)<br>Amos Tai (CUHK)
 
|Joey Lam(CUHK)<br>Amos Tai (CUHK)
 
|Science
 
|Science
|
+
|Easy
 
|
 
|
 
*Delivered to GCST (Feb 2021)
 
*Delivered to GCST (Feb 2021)
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|Sebastian Eastham (MIT)<br>Eric Fleming (NASA GMAO)
 
|Sebastian Eastham (MIT)<br>Eric Fleming (NASA GMAO)
 
|Chemistry
 
|Chemistry
|
+
|Easy
|
+
 
+
|-valign="top"
+
|Archived CMIP6 Met Products for GEOS-Chem Input
+
|Lee Murray (Rochester)
+
|Input data
+
|
+
|
+
*See updates from [http://acmg.seas.harvard.edu/geos/word_pdf_docs/steering_cmte/gc_sc_minutes_24Feb2021.pdf Feb 2021 GCSC meeting]
+
*Official announcement coming soon
+
 
+
|-valign="top"
+
|[http://acmg.seas.harvard.edu/publications/2021/shah_est_2021.pdf Updated Hg chemistry]
+
|Viral Shah (Harvard)<br>Colin Thackray (Harvard)
+
|Chemistry
+
|
+
 
|
 
|
  
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|Loretta Mickley (Harvard)<br>Yang Li (Harvard)
 
|Loretta Mickley (Harvard)<br>Yang Li (Harvard)
 
|Emissions
 
|Emissions
 +
|Easy
 
|
 
|
 +
*Data files delivered to GCST (July 2021)
 +
 +
|-valign="top"
 +
|[https://gmd.copernicus.org/articles/13/2569/2020/ Canopy Physics Model]
 +
|Sam Silva (MIT)
 +
|Science
 +
|Medium
 
|
 
|
 +
*Code is available at https://zenodo.org/record/3614062
  
 
|}
 
|}
  
 
== Almost there (< 6 months) ==
 
== 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
 
{| 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="300px"|Notes
+
!width="420px"|Notes
 +
 
 +
 
 +
|-valign="top"
 +
|[https://github.com/geoschem/geos-chem/issues/559 Implement H2 chemistry in UCX]
 +
|Chris Holmes (FSU)
 +
|Chemistry
 +
|
 +
*Identified as a priority for GC 13, but not yet delivered
 +
 
 +
 
 +
|-valign="top"
 +
|[https://iopscience.iop.org/article/10.1088/1748-9326/ac16a3 New soil NOx parameterization]
 +
|Yi Wang (U. Iowa)<br>Jun Wang (U. Iowa)
 +
|Emissions
 +
|
 +
 
 +
|-valign="top"
 +
|[[Grid-independent_emissions|Updated offline biogenic emissions]]
 +
|Hongjian Weng (PKU)
 +
|Emissions
 +
|
 +
*Identified as a priority for GC 13, but not yet delivered
 +
 
 +
|-valign="top"
 +
|[[Grid-independent_emissions|Updated offline sea salt emissions]]
 +
|Hongjian Weng (PKU)
 +
|Emissions
 +
|
 +
*Identified as a priority for GC 13, but not yet delivered
 +
 
 +
|-valign="top"
 +
|[[Grid-independent_emissions|Updated offline soil NOx emissions]]
 +
|Hongjian Weng (PKU)
 +
|Emissions
 +
|
 +
*Identified as a priority for GC 13, but not yet delivered
 +
 
 +
|-valign="top"
 +
|Provide recommended rather than hard-coded scaling factors for online emissions
 +
|GCST
 +
|Emissions
 +
|
 +
*Identified as a priority for GC 13, but not yet developed
  
 
|-valign="top"
 
|-valign="top"
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|Kazu Miyazaki (JPL)
 
|Kazu Miyazaki (JPL)
 
|Input data
 
|Input data
|
 
 
|-valign="top"
 
|Aromatic VOC chemistry
 
|Kelvin Bates (Harvard)<br>Ke Li (Harvard)
 
|Chemistry
 
 
|
 
|
  
Line 317: Line 298:
 
|Emissions
 
|Emissions
 
|
 
|
 
  
 
|-valign="top"
 
|-valign="top"
Line 327: Line 307:
  
 
|-valign="top"
 
|-valign="top"
|Read-in of native GEOS output in GCHP
+
|Change GCHP advection inputs to use total pressure and mixing ratio rather than dry
|WUStL GCST
+
|Sebastian Eastham (MIT)
|Input data
+
|Transport
 
|
 
|
 +
*Identified as a priority for GC 13, but not yet delivered
 +
*GCHP only
  
 
|-valign="top"
 
|-valign="top"
|Modularization of GEOS-Chem: FAST-JX as proof-of-concept
+
|HTAPv3 emissions (0.1 deg, 2002-2018)
|Lizzie Lundgren (GCST)
+
|Emissions & Deposition WG
|Structural
+
|Emissions
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Change GCHP advection inputs to use total pressure and mixing ratio rather than dry
+
|Migrating simple SOA formation from carbon_mod.F90 into the KPP "full-chemistry" mechanism
|Sebastian Eastham (MIT)
+
|GCST
|GCHP<br>Transport
+
|Chemistry
|
+
 
+
|-valign="top"
+
|Add capability to read mass fluxes for use in advection
+
|Sebastian Eastham (MIT)
+
|GCHP<br>Input data<br>Transport
+
 
|
 
|
  
Line 353: Line 329:
  
 
== Over the horizon (6-12 months) ==
 
== 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.
  
 
{| 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="300px"|Notes
+
!width="420px"|Notes
  
 
|-valign="top"
 
|-valign="top"
Line 394: Line 372:
 
|}
 
|}
  
=== Longer term (12-24 months)===
+
== Longer term (12-24 months)==
  
 +
Features listed in this table are in development and will likely be delivered to the GEOS-Chem Support Team in the 12-24 months timeframe.
 
{| border=1 cellspacing=0 cellpadding=5
 
{| border=1 cellspacing=0 cellpadding=5
 
|- bgcolor="#cccccc"
 
|- bgcolor="#cccccc"
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!width="200px"|Contributor(s)
 
!width="200px"|Contributor(s)
 
!width="100px"|Model scope
 
!width="100px"|Model scope
!width="300px"|Notes
+
!width="420px"|Notes
 
+
|-valign="top"
+
|GCHP Adjoint
+
|Daven Henze (CU Boulder)
+
|Structural
+
|
+
  
 
|-valign="top"
 
|-valign="top"

Revision as of 14:02, 21 October 2021

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 Minor version in development
GEOS-Chem 13.3.1 GEOS-Chem 13.3.0

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
Updates to enable automated run directory creation Liam Bindle (GCST)
Melissa Sulprizio (GCST)
Run directory Medium
Upgrade Fast-JX to Cloud-J Lizzie Lundgren (GCST) Structural Difficult
Migrating sulfate chemistry into KPP Mike Long (GCST) Chemistry &
Structural
Difficult
  • Complete but needs validation & further testing
Updated Hg chemistry in KPP Viral Shah (Harvard)
Colin Thackray (Harvard)
Mike Long (Harvard)
Chemistry Medium
Add capability to use mass fluxes in advection Sebastian Eastham (MIT) Transport Easy
  • Identified as a priority for GC 13, but not yet delivered
  • GCHP only


Provide climatologies for open fire emissions Melissa Sulprizio (GCST) Emissions Easy
Climatologies for lightning NOx, biomass burning, and volcanoes Lee Murray (Rochester)
Melissa Sulprizio (GCST)
Emissions Easy
Add option for driving GEOS-Chem with native GEOS meteorological files Liam Bindle (GCST) Structural Easy
Change State_Chm%Species from 4D to vector of 3D arrays and point them to internal state in GCHP Lizzie Lundgren (GCST) Structural Medium

Feature integration 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
Add PM10 diagnostic Aerosols WG Diagnostic Easy
Updated Rn-222 emissions Bo Zhang Emissions Easy
Joint CO2-CO-CH4-OCS simulation Beata Bukosa (NIWA)
Kevin Bowman (JPL)
Specialty simulation Medium
Adaptive chemical solver (as option) Mike Long (Harvard)
Haipeng Lin (Harvard)
Chemistry Difficult
  • In testing

Feature integration not yet prioritized

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

Feature Contributor(s) Model scope Ease of implementation Notes
Stratospheric HCN chemistry Armin Kleinbohl (JPL)
Debra Weisenstein (Harvard, retired)
Chemistry Medium
  • Delivered to GCST (Jun 2020)
MEGAN3 Sam Silva (MIT) Emissions Medium
GC-YIBs biosphere-atmospheric chemistry coupled model Xu Yue (NUIST) Science Easy
Ecophysiology module in GEOS-Chem for biosphere-atmosphere exchange Joey Lam(CUHK)
Amos Tai (CUHK)
Science Easy
Extend UCX into the mesosphere Sebastian Eastham (MIT)
Eric Fleming (NASA GMAO)
Chemistry Easy
Landcover/Fire Emissions Offline LPJlmfire Loretta Mickley (Harvard)
Yang Li (Harvard)
Emissions Easy
  • Data files delivered to GCST (July 2021)
Canopy Physics Model Sam Silva (MIT) Science Medium

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


Implement H2 chemistry in UCX Chris Holmes (FSU) Chemistry
  • Identified as a priority for GC 13, but not yet delivered


New soil NOx parameterization Yi Wang (U. Iowa)
Jun Wang (U. Iowa)
Emissions
Updated offline biogenic emissions Hongjian Weng (PKU) Emissions
  • Identified as a priority for GC 13, but not yet delivered
Updated offline sea salt emissions Hongjian Weng (PKU) Emissions
  • Identified as a priority for GC 13, but not yet delivered
Updated offline soil NOx emissions Hongjian Weng (PKU) Emissions
  • Identified as a priority for GC 13, but not yet delivered
Provide recommended rather than hard-coded scaling factors for online emissions GCST Emissions
  • Identified as a priority for GC 13, but not yet developed
Diagnostic to archive XCO2, XCO, and XCH4 Dylan Jones (Toronto) Diagnostic
Provide archived TCR-2 GEOS-Chem OH fields for carbon simulations Kazu Miyazaki (JPL) Input data
BrC aging Xuan Wang (Harvard)
Melanie Hammer(Dalhousie)
Chemistry
Shared Socioeconomic Pathways Emission Inventories Hong Liao (NUIST) Emissions
Rediagnosis of RAS convection in GEOS-Chem Tailong He (Toronto)
Dylan Jones (Toronto)
Andrea Molod (NASA/GMAO)
Convection
  • Work is finished and a manuscript is in preparation.
Change GCHP advection inputs to use total pressure and mixing ratio rather than dry Sebastian Eastham (MIT) Transport
  • Identified as a priority for GC 13, but not yet delivered
  • GCHP only
HTAPv3 emissions (0.1 deg, 2002-2018) Emissions & Deposition WG Emissions
Migrating simple SOA formation from carbon_mod.F90 into the KPP "full-chemistry" mechanism GCST Chemistry

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
Methylethylketone chemistry Jared Brewer (CSU) Chemistry
Add sulfate dependence to SOA yield from isoprene in simple SOA Eloise Marais (Leicester) Chemistry
GTMM updates Ben Geyman (Harvard) Hg simulation


Integrating GMAO's tracer gridded component in GCHP Christoph Keller (NASA GMAO) Transport Tracer simulation
Streamlining of specialty simulations through HEMCO and KPP GCST Chemistry, Specialty simulations

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
Implement isotope simulation for CO and CH4 in GCHP Lee Murray (Rochester) Specialty simulation
Migrate LETFK DA scheme to GCHP Kazu Miyazaki (JPL) Structural
Super fast chemistry scheme Benjamin Brown-Steiner (AER)
Makoto Kelp (Harvard)
Chemistry
  • SF mechanism has been implemented and benchmarked in GEOS-Chem 12.0.0. This mechanism is of interest for those groups wanting fast global simulation of oxidation fields in GEOS-Chem simulations focused on aerosol microphysics.
  • The machine-learned chemical solver is still probably 12 months away from online implementation into GEOS-Chem.
Add non-volatile cations to ISORROPIA Becky Alexander (UW) Aerosols
DMS oxidation scheme updating Becky Alexander (UW)
Qianjie Chen (UW)
Chemistry
  • Delayed - implemented pre-KPP
  • Currently bring implemented in KPP by UC Riverside group
Heterogeneous sulfate production Lin Zhang (PKU)
Becky Alexander (UW)
Yuxuan Wang (U. Houston)
Chemistry
  • Delayed - implemented pre-KPP
Hg in WRF-GC Yanxu Zhang (Nanjing) Hg simulation
Hg with blowing snow Yanxu Xhang (Nanjing) Emissions, Hg simulation
Hg isotopes Xiaotian Xu, Yanxu Xhang (Nanjing) Hg simulation
Hg in CESM CAM-CHEM Peng Zhang, Yanxu Xhang (Nanjing) Hg simulation
Complex / multicomplex variables Shannon Capps (Drexel) Structural

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