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

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== Priorities assigned to upcoming GEOS-Chem versions ==
 
== Priorities assigned to upcoming GEOS-Chem versions ==
 
=== 12.9.0 ===
 
 
<span style="color:darkorange">'''This version is now under development.  Please see [[GEOS-Chem 12#12.9.0|the ''GEOS-Chem 12'' wiki page]] for more details.'''''</span>
 
  
 
=== 13.0.0 ===
 
=== 13.0.0 ===
  
{| border=1 cellspacing=0 cellpadding=5
+
<span style="color:darkorange">'''This version is now under development. Please see [[GEOS-Chem 13#13.0.0|the ''GEOS-Chem 13'' wiki page]] for more details.'''''</span>
|-bgcolor="#CCCCCC"
+
!width="500px"|Feature
+
!width="200px"|Submitted by
+
!width="100px"|Type
+
!width="300px"|Notes and References
+
 
+
|-valign="top"
+
!colspan="4" bgcolor="#CCFFFF"|Updates that will affect full-chemistry simulations
+
 
+
|-valign="top"
+
|Retire carbon-based units for VOCs
+
|GCST
+
|Science
+
|
+
 
+
|-valign="top"
+
!colspan="4" bgcolor="#CCFFFF"|Updates that will NOT affect full-chemistry simulations
+
 
+
|-valign="top"
+
|[https://zenodo.org/record/3754964#.XtEVOZ5KjOQ CEDS_GBD-MAPS emission inventory (1970 - 2017)]
+
|Erin McDuffie (Dalhousie)
+
|Science
+
|
+
 
+
|-valign="top"
+
|ODIAC fossil fuel emissions for CO2 simulations
+
|Jenny Fisher (UOW)<br>Yi Cao (UOW)
+
|Science
+
|
+
*Delivered to GCST (Jan 2020)
+
 
+
|-valign="top
+
|Updated Streets Hg emissions
+
|Colin Thackray (Harvard)
+
|Science
+
|
+
*Delivered to GCSG (Jul 2020)
+
 
+
|-valign="top
+
|Updated EDGAR 4.3 Hg emissions
+
|Amanda Giang (UBC)
+
|Science
+
|
+
 
+
|-valign="top"
+
|[https://essd.copernicus.org/articles/12/563/2020/essd-12-563-2020.pdf Global Inventory of Methane Emissions from Fuel Exploitation]
+
|Tia Scarpelli (Harvard)
+
|Science
+
|
+
 
+
|-valign="top"
+
|[https://github.com/geoschem/geos-chem/issues/332 Retire tropchem mechanism; implement new tropchem simulation using Standard mechanism below the tropopause and archived P/L rates above]
+
|Melissa Sulprizio (GCST)
+
|Science
+
|
+
 
+
|-valign="top"
+
|[https://github.com/geoschem/geos-chem/pull/347 Fix bug in RRTMG with stratospheric aerosol]
+
|Sebastian Eastham (MIT)
+
|Bug fix
+
|
+
 
+
|-valign="top"
+
|[https://github.com/geoschem/geos-chem/issues/242 Add global mean OH and CH4 lifetime diagnostics]
+
|GCST
+
|Structural
+
|
+
 
+
|-valign="top"
+
|Retire the GNU Make build system in both GEOS-Chem Classic and GCHP and replace with CMake
+
|Liam Bindle (WashU)<br>GCST
+
|Structural
+
|
+
 
+
|-valign="top"
+
|[https://github.com/geoschem/geos-chem/issues/283 Retire the GEOS-Chem Unit Tester repository and move GEOS-Chem run directory creation to the GEOS-Chem source code repository]
+
|Melissa Sulprizio (GCST)
+
|Structural
+
|
+
 
+
|-valign="top"
+
|Updates to HEMCO for compatibility with CESM
+
|Haipeng Lin (Harvard)
+
|Structural
+
|
+
*ongoing
+
 
+
|-valign="top"
+
|[https://github.com/geoschem/geos-chem/issues/270 Reduction of memory for HISTORY diagnostics with a species dimension]
+
|Bob Yantosca (GCST)
+
|Structural
+
|
+
 
+
|-valign="top"
+
|[https://github.com/geoschem/geos-chem/issues/311 Removal of HEMCO code from within the non-local PBL mixing modules]
+
|Bob Yantosca (GCST)
+
|Structural
+
 
+
|-valign="top"
+
|[https://github.com/geoschem/geos-chem/issues/242 Add global mean OH and CH4 lifetime diagnostics]
+
|GCST
+
|Structural
+
|
+
 
+
 
+
|-
+
!colspan="4" bgcolor="#CCFFFF"|Features only affecting GCHP:
+
 
+
|-valign="top"
+
|Retire the existing GCHP repository and replace with a new wrapper repository that uses ESMF as an external library and integrates GEOS-Chem and NASA/GMAO GEOS-ESM git repositories as git submodules
+
|Lizzie Lundgren (GCST)
+
|Structural
+
|
+
 
+
|-valign="top"
+
|Separate HEMCO from GEOS-Chem to use as an ESMF gridded component in GCHP
+
|Lizzie Lundgren (GCST)
+
|Structural
+
|
+
 
+
|-valign="top"
+
|Enable a stretched grid capability in GCHP to run global simulations at regional high resolution
+
|Liam Bindle (WashU)
+
|Structural
+
|
+
 
+
|-valign="top"
+
|Update MAPL (v2.2.7) and GMAO library dependencies
+
|Lizzie Lundgren (GCST)
+
|Structural
+
|
+
 
+
|-valign="top"
+
|[https://github.com/geoschem/geos-chem/pull/348 Enable GCHP to be compiled with RRTMG]
+
|Sebastian Eastham (MIT)
+
|Science
+
|
+
|}
+
  
 
== Priorities not yet assigned to a particular version ==
 
== Priorities not yet assigned to a particular version ==
Line 165: Line 23:
 
!width="100px"|Type
 
!width="100px"|Type
 
!width="300px"|Notes
 
!width="300px"|Notes
 
|-
 
!colspan="4" bgcolor="#CCFFFF"|Chemistry updates
 
  
 
|-valign="top"
 
|-valign="top"
Line 174: Line 29:
 
|Science
 
|Science
 
|
 
|
 +
*Gan and Fangqun are ready to submit their code upon GCST's request
  
 
|-valign="top"
 
|-valign="top"
Line 194: Line 50:
 
|
 
|
  
|-
+
|-valign="top"
!colspan="4" bgcolor="#CCFFFF"|Emissions and surface fluxes updates
+
|Trace metal simulation
 +
|Junwei Xu (Dalhousie)
 +
|Science
 +
|''Updated Aug 2020''
  
 
|-
 
|-
Line 210: Line 69:
 
|
 
|
  
|-
+
|-valign="top"
!colspan="4" bgcolor="#CCFFFF"|Aerosol updates
+
|[http://globalchange.bnu.edu.cn/research/laiv6 Updated Yuan/BNU MODIS LAI product (2000-2019)]
 +
|Jenny Fisher (U. Wollongong)
 +
|Science
 +
|
 +
*Processing scripts delivered to GCST (Aug 2020)
  
 
|-valign="top"
 
|-valign="top"
|Arctic marine SOA
+
|[https://gmd.copernicus.org/articles/13/2569/2020/ MEGAN3]
|Betty Croft (Dalhousie)
+
|Sam Silva (MIT)
 
|Science
 
|Science
 
|
 
|
*Details on wiki only, not in standard code
+
*Implementation details may be found at https://zenodo.org/record/3614062#.XzvrH5NKjOR
  
|}
+
|-valign="top"
 +
|[https://github.com/geoschem/geos-chem/issues/425 GC-YIBs biosphere-atmospheric chemistry coupled model]
 +
|Xu Yue (NUIST)
 +
|Science
 +
|''Updated Aug 2020''
  
--[[User:Melissa Payer|Melissa Sulprizio]] ([[User talk:Melissa Payer|talk]]) 16:38, 14 May 2019 (UTC)
+
|}
  
 
=== Almost there (< 6 months) ===
 
=== Almost there (< 6 months) ===
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|-valign="top"
 
|-valign="top"
|Provide climatologies for lightning NOx, volcano, and open fire emissions
+
|[https://github.com/geoschem/HEMCO/issues/46 Distribute emissions vertically in the boundary layer]
|GCST
+
|Barron Henderson (EPA)<br>GCST
|Science
+
|Structural &<br>Science
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|[https://www.geosci-model-dev.net/12/111/2019/gmd-12-111-2019.pdf Aromatic VOC chemistry]
+
|Provide climatologies for lightning NOx, volcano, and open fire emissions
|Kelvin Bates (Harvard)<br>Ke Li (Harvard)
+
|GCST
 
|Science
 
|Science
 
|
 
|
Line 249: Line 116:
 
|Kelvin Bates (Harvard)<br>Ke Li (Harvard)
 
|Kelvin Bates (Harvard)<br>Ke Li (Harvard)
 
|Science
 
|Science
|
+
|''Updated Sep 2020''
  
 
|-valign="top"
 
|-valign="top"
Line 262: Line 129:
 
|Science
 
|Science
 
|
 
|
 
|-valign="top"
 
|Evaluate the impact on the tropsophere of using the family approach for transport in the stratosphere
 
|Christoph Keller (NASA/GMAO)
 
|Science
 
|
 
*Important when [[Stratospheric_chemistry#Treatment_of_the_mesosphere_in_UCX_simulations|extending UCX into the mesosphere]]
 
  
 
|-valign="top"
 
|-valign="top"
Line 274: Line 134:
 
|Sebastian Eastham (MIT)<br>Eric Fleming (NASA GMAO)
 
|Sebastian Eastham (MIT)<br>Eric Fleming (NASA GMAO)
 
|Science
 
|Science
|
 
 
|-valign="top"
 
|Examine differences in the lightning NOx schemes in GEOS-Chem and GMI
 
|Christoph Keller (NASA/GMAO)<br>Lee Murray (Rochester)
 
|Science
 
|
 
 
|-valign="top"
 
|Heterogeneous sulfate production
 
|Lin Zhang (PKU)<br>Becky Alexander (UW)<br>Yuxuan Wang (U. Houston)
 
|Science
 
 
|
 
|
  
Line 297: Line 145:
 
|Update of US emissions to NEI16
 
|Update of US emissions to NEI16
 
|Barron Henderson (EPA)
 
|Barron Henderson (EPA)
|Science
 
|
 
 
|-valign="top"
 
|Updated surface ocean dissolved Hg0 from MITgcm
 
|Yanxu Zhang (Nanjing)
 
 
|Science
 
|Science
 
|
 
|
Line 308: Line 150:
 
|-valign="top"
 
|-valign="top"
 
|One-Way Coupling w/ GISS ModelE3
 
|One-Way Coupling w/ GISS ModelE3
|Lee Murray (Rochester)<br>Eric Leibensperger (SUNY Plattsburgh)
+
|Lee Murray (Rochester)
 
|Structural
 
|Structural
|
+
|''Updated Aug 2020''
 +
*Work is finished and a manuscript is in preparation
  
 
|-valign="top"
 
|-valign="top"
Line 317: Line 160:
 
|Science
 
|Science
 
|
 
|
 +
 +
|-valign="top"
 +
|Ecophysiology module in GEOS-Chem for biosphere-atmosphere exchange
 +
|Amos Tai (CUHK)
 +
|Science
 +
|''Updated Aug 2020''
 +
 +
 +
|-valign="top"
 +
|Rediagnosis of RAS convection in GEOS-Chem
 +
|Tailong He (Toronto)<br>Dylan Jones (Toronto)<br>Andrea Molod (NASA/GMAO)
 +
|Science
 +
|''Updated Aug 2020''
 +
*Work is finished and a manuscript is in preparation.
 +
 +
|-valign="top"
 +
|Read-in of native GEOS output in GCHP
 +
|WUStL GCST
 +
|Science
 +
|''Added Sep 2020''
 +
 +
|-valign="top"
 +
|Adoption of the Spack package manager for dependency management
 +
|Harvard GCST
 +
|Structural
 +
|''Added Sep 2020''
  
 
|}
 
|}
 
--[[User:Melissa Payer|Melissa Sulprizio]] ([[User talk:Melissa Payer|talk]]) 16:38, 14 May 2019 (UTC)
 
  
 
=== Over the horizon (6-12 months) ===
 
=== Over the horizon (6-12 months) ===
Line 331: Line 198:
 
!width="300px"|Notes
 
!width="300px"|Notes
  
|-valign="top"
 
|Update OCS simulation in the standard code
 
|Kevin Bowman (JPL)
 
|Science
 
|
 
  
 
|-valign="top"
 
|-valign="top"
|Examine what are the differences in the PSC implementation in GEOS-Chem and GMI and assess the implications of these differences for startospheric ozone
+
|Aromatic VOC chemistry
|Susan Strahan (Goddard)<br>Sebastian Eastham (MIT)
+
|Kelvin Bates (Harvard)<br>Ke Li (Harvard)
 
|Science
 
|Science
|
+
|''Updated Sep 2020''
  
 
|-valign="top"
 
|-valign="top"
|Rediagnosis of RAS convection in GEOS-Chem
+
|Update OCS simulation in the standard code
|Tailong He (Toronto)<br>Dylan Jones (Toronto)<br>Andrea Molod (NASA/GMAO)
+
|Kevin Bowman (JPL)
|Science
+
|
+
 
+
|-valign="top"
+
|New schedule for tracer transport benchmarks (FP change, scavenging change, or major release)
+
|Andrea Molod (NASA/GMAO)
+
 
|Science
 
|Science
 
|
 
|
Line 363: Line 219:
 
|-valign="top"
 
|-valign="top"
 
|Add sulfate dependence to SOA yield from isoprene in simple SOA
 
|Add sulfate dependence to SOA yield from isoprene in simple SOA
|Elo&iuml;se Marais (Leicester)
+
|Eloise Marais (Leicester)
 
|Science
 
|Science
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Trace metal simulation
+
|Updated Hg chemistry:
|Junwei Xu (Dalhousie)
+
*Streamlining of Hg simulation through HEMCO and KPP
 +
*Hg gas-phase photo-reduction
 +
|Viral Shah (Harvard)<br>Colin Thackray (Harvard)
 
|Science
 
|Science
|
+
|''Updated July 2020''
  
 
|-valign="top"
 
|-valign="top"
|Hg gas-phase photo-reduction
+
|GTMM updates
|Colin Thackray (Harvard)
+
|Ben Geyman (Harvard)
 
|Science
 
|Science
|
+
|''Updated Aug 2020''
 
+
|-valign="top"
+
|Ecophysiology module in GEOS-Chem for biosphere-atmosphere exchange
+
|Amos Tai (CUHK)
+
|Science
+
|
+
  
 
|-valign="top"
 
|-valign="top"
Line 397: Line 249:
 
|
 
|
  
|}
+
|-valign="top"
 +
|Integrating GMAO's tracer gridded component in GCHP
 +
|Sebastian Eastham (MIT)
 +
|Structural
 +
|''Added Sep 2020''
 +
 
 +
|-valign="top"
 +
|Mass flux-based transport in GCHP
 +
|Sebastian Eastham (MIT)
 +
|Science
 +
|''Added Sep 2020''
  
--[[User:Melissa Payer|Melissa Sulprizio]] ([[User talk:Melissa Payer|talk]]) 16:38, 14 May 2019 (UTC)
+
|}
  
 
=== Longer term (12-24 months)===
 
=== Longer term (12-24 months)===
Line 409: Line 271:
 
!width="100px"|Type
 
!width="100px"|Type
 
!width="300px"|Notes
 
!width="300px"|Notes
 +
 +
|-valign="top"
 +
|GCHP Adjoint
 +
|Daven Henze (CU Boulder)
 +
|Science
 +
|''Added Sep 2020''
  
 
|-valign="top"
 
|-valign="top"
Line 426: Line 294:
 
|Benjamin Brown-Steiner (AER)<br>Makoto Kelp (Harvard)
 
|Benjamin Brown-Steiner (AER)<br>Makoto Kelp (Harvard)
 
|Science
 
|Science
|
+
|''Updated Sep 2020:''
 +
*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.
  
 
|-valign="top"
 
|-valign="top"
Line 432: Line 302:
 
|Becky Alexander (UW)
 
|Becky Alexander (UW)
 
|Science
 
|Science
|
+
|''Updated Aug 2020''
  
 
|-valign="top"
 
|-valign="top"
|Update Europe emissions to EMEP 2016
+
|DMS oxidation scheme updating
|Eloise Marais (Leicester)
+
|Becky Alexander (UW)<br>Qianjie Chen (UW)
 
|Science
 
|Science
|
+
|''Updated Aug 2020''
 +
*Delayed - implemented pre-KPP
 +
*Currently bring implemented in KPP by UC Riverside group
  
 
|-valign="top"
 
|-valign="top"
|MEGAN3
+
|Heterogeneous sulfate production
|Sam Silva (MIT)<br>Jen Kaiser (GIT)<br>Yuxuan Wang (UH)
+
|Lin Zhang (PKU)<br>Becky Alexander (UW)<br>Yuxuan Wang (U. Houston)
 
|Science
 
|Science
|
+
|''Updated Aug 2020''
 
+
*Delayed - implemented pre-KPP
|-valign="top"
+
|DMS oxidation scheme updating
+
|Becky Alexander (UW)<br>Qianjie Chen (UW)
+
|Science
+
|
+
  
 
|-valign="top"
 
|-valign="top"
 
|Streamlining of specialty simulations through HEMCO and KPP
 
|Streamlining of specialty simulations through HEMCO and KPP
|GCST<br>Chris Holmes (FSU)<br>Colin Thackray (Harvard) for Hg<br>Peter Ivatt (York) for PAH<br>Beata Bukosa (Wollongong) for joint CO-CO2-CH4
+
|GCST<br>Chris Holmes (FSU)<br>Peter Ivatt (York) for PAH<br>Beata Bukosa (Wollongong) for joint CO-CO2-CH4
 
|Science
 
|Science
 
|
 
|
Line 462: Line 329:
 
|Yanxu Zhang (Nanjing)
 
|Yanxu Zhang (Nanjing)
 
|Science
 
|Science
|
+
|''Updated Aug 2020''
  
 
|-valign="top"
 
|-valign="top"
Line 468: Line 335:
 
|Yanxu Xhang (Nanjing)
 
|Yanxu Xhang (Nanjing)
 
|Science
 
|Science
|
+
|''Updated Aug 2020''
  
 
|-valign="top"
 
|-valign="top"
|Updated treatment of Hg in ocean
+
|Hg isotopes
|Chris Holmes (FSU)
+
|Xiaotian Xu, Yanxu Xhang (Nanjing)
 
|Science
 
|Science
|
+
|''Added Aug 2020''
  
 
|-valign="top"
 
|-valign="top"
|GTMM updates
+
|Hg in CESM CAM-CHEM
|Ben Geyman (Harvard)
+
|Peng Zhang, Yanxu Xhang (Nanjing)
 
|Science
 
|Science
|
+
|''Added Aug 2020''
 +
 
 +
|-valign="top"
 +
|Updated treatment of Hg in ocean
 +
|Chris Holmes (FSU)
 +
|Science
 +
|''Updated Aug 2020''
 +
 
  
 
|-valign="top"
 
|-valign="top"
Line 495: Line 369:
  
 
|}
 
|}
 
--[[User:Melissa Payer|Melissa Sulprizio]] ([[User talk:Melissa Payer|talk]]) 16:38, 14 May 2019 (UTC)
 
  
 
----------------
 
----------------
  
 
'''''[[Main_Page|GEOS-Chem Main Page]] | [[GCHP_Main_Page|GCHP Main Page]]'''''
 
'''''[[Main_Page|GEOS-Chem Main Page]] | [[GCHP_Main_Page|GCHP Main Page]]'''''

Revision as of 22:59, 3 September 2020

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.

We also invite you to view our GEOS-Chem Support Team project management board on Trello.com, which shows the current GCST workflow.

Priorities assigned to upcoming GEOS-Chem versions

13.0.0

This version is now under development. Please see the GEOS-Chem 13 wiki page for more details.

Priorities not yet assigned to a particular version

The following items have been identified as priorities for GEOS-Chem, but have not yet been assigned to a particular GEOS-Chem version.

Ready to go in

Feature Submitted by Type Notes
Improved wet scavenging (Luo et al., 2020) Gan Luo (Albany)
Fanqun Yu (Albany)
Science
  • Gan and Fangqun are ready to submit their code upon GCST's request
Implement H2 chemistry in UCX Chris Holmes (FSU) Science
Stratospheric HCN chemistry Armin Kleinbohl (JPL)
Debra Weisenstein (Harvard, retired)
Science
  • Delivered to GCST (Jun 2020)
HMS chemistry Jonathan Moch (Harvard) Science
Trace metal simulation Junwei Xu (Dalhousie) Science Updated Aug 2020
Blowing snow emissions of sea salt and bromine Lyatt Jaegle (UW) Science
  • Delivered to GCST (Jun 2020)
Offline CLM Harmonization Anthony Wong (BU)
Jeff Geddes (BU)
Science
Updated Yuan/BNU MODIS LAI product (2000-2019) Jenny Fisher (U. Wollongong) Science
  • Processing scripts delivered to GCST (Aug 2020)
MEGAN3 Sam Silva (MIT) Science
GC-YIBs biosphere-atmospheric chemistry coupled model Xu Yue (NUIST) Science Updated Aug 2020

Almost there (< 6 months)

Item Author(s) Type Notes
Distribute emissions vertically in the boundary layer Barron Henderson (EPA)
GCST
Structural &
Science
Provide climatologies for lightning NOx, volcano, and open fire emissions GCST Science
C2H4 and C2H2 chemistry Kelvin Bates (Harvard)
Ke Li (Harvard)
Science Updated Sep 2020
Diagnostic to archive XCO2, XCO, and XCH4 Dylan Jones (Toronto) Science
Provide archived TCR-2 GEOS-Chem OH fields for carbon simulations Kazu Miyazaki (JPL) Science
Extend UCX into the mesosphere Sebastian Eastham (MIT)
Eric Fleming (NASA GMAO)
Science
BrC aging Xuan Wang (Harvard)
Melanie Hammer(Dalhousie)
Science
Update of US emissions to NEI16 Barron Henderson (EPA) Science
One-Way Coupling w/ GISS ModelE3 Lee Murray (Rochester) Structural Updated Aug 2020
  • Work is finished and a manuscript is in preparation
Shared Socioeconomic Pathways Emission Inventories Hong Liao (NUIST) Science
Ecophysiology module in GEOS-Chem for biosphere-atmosphere exchange Amos Tai (CUHK) Science Updated Aug 2020


Rediagnosis of RAS convection in GEOS-Chem Tailong He (Toronto)
Dylan Jones (Toronto)
Andrea Molod (NASA/GMAO)
Science Updated Aug 2020
  • Work is finished and a manuscript is in preparation.
Read-in of native GEOS output in GCHP WUStL GCST Science Added Sep 2020
Adoption of the Spack package manager for dependency management Harvard GCST Structural Added Sep 2020

Over the horizon (6-12 months)

Item Author(s) Type Notes


Aromatic VOC chemistry Kelvin Bates (Harvard)
Ke Li (Harvard)
Science Updated Sep 2020
Update OCS simulation in the standard code Kevin Bowman (JPL) Science
Methylethylketone chemistry Jared Brewer (CSU) Science
Add sulfate dependence to SOA yield from isoprene in simple SOA Eloise Marais (Leicester) Science
Updated Hg chemistry:
  • Streamlining of Hg simulation through HEMCO and KPP
  • Hg gas-phase photo-reduction
Viral Shah (Harvard)
Colin Thackray (Harvard)
Science Updated July 2020
GTMM updates Ben Geyman (Harvard) Science Updated Aug 2020
Canopy Physics Model Sam Silva (MIT) Structural
Landcover/Fire Emissions Offline LPJlmfire Loretta Mickley (Harvard) Science
Integrating GMAO's tracer gridded component in GCHP Sebastian Eastham (MIT) Structural Added Sep 2020
Mass flux-based transport in GCHP Sebastian Eastham (MIT) Science Added Sep 2020

Longer term (12-24 months)

Item Author(s) Type Notes
GCHP Adjoint Daven Henze (CU Boulder) Science Added Sep 2020
Implement isotope simulation for CO and CH4 in GCHP Lee Murray (Rochester) Science
Migrate LETFK DA scheme to GCHP Kazu Miyazaki (JPL) Science
Super fast chemistry scheme Benjamin Brown-Steiner (AER)
Makoto Kelp (Harvard)
Science Updated Sep 2020:
  • 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) Science Updated Aug 2020
DMS oxidation scheme updating Becky Alexander (UW)
Qianjie Chen (UW)
Science Updated Aug 2020
  • 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)
Science Updated Aug 2020
  • Delayed - implemented pre-KPP
Streamlining of specialty simulations through HEMCO and KPP GCST
Chris Holmes (FSU)
Peter Ivatt (York) for PAH
Beata Bukosa (Wollongong) for joint CO-CO2-CH4
Science
Hg in WRF-GC Yanxu Zhang (Nanjing) Science Updated Aug 2020
Hg with blowing snow Yanxu Xhang (Nanjing) Science Updated Aug 2020
Hg isotopes Xiaotian Xu, Yanxu Xhang (Nanjing) Science Added Aug 2020
Hg in CESM CAM-CHEM Peng Zhang, Yanxu Xhang (Nanjing) Science Added Aug 2020
Updated treatment of Hg in ocean Chris Holmes (FSU) Science Updated Aug 2020


Complex / multicomplex variables Shannon Capps (Drexel) Structural
Archived CMIP6 Met Products for GEOS-Chem Input Lee Murray (Rochester) Science

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