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 ==
 
=== 12.7.0 ===
 
 
<span style="color:darkorange">'''This version is currently in development. See [[GEOS-Chem_12#12.7.0|the ''GEOS-Chem 12'' wiki page]] for details.'''</span>
 
 
=== 12.8.0 ===
 
 
This version will require 1-month and 1-year full-chemistry benchmarks.
 
 
{| border=1 cellspacing=0 cellpadding=5
 
|-bgcolor="#CCCCCC"
 
!width="500px"|Feature
 
!width="200px"|Submitted by
 
!width="100px"|Type
 
!width="300px"|Notes
 
 
|-valign="top"
 
|[https://www.atmos-chem-phys.net/19/9613/2019/ Isoprene chemistry]
 
|Kelvin Bates (Harvard)
 
|Science
 
|
 
 
|-valign="top"
 
|[https://agupubs.onlinelibrary.wiley.com/doi/full/10.1002/2017GL075270 Wet deposition parameterization]
 
|Kelvin Bates (Harvard)<br>GCST
 
|Science
 
|
 
 
|-valign="top"
 
|Ozone deposition to the ocean
 
|Ryan Pound (York)<br>Mat Evans (York)
 
|Science
 
|
 
 
|}
 
 
=== 12.9.0 ===
 
 
This version will require 1-month and 1-year full-chemistry benchmarks.
 
 
{| border=1 cellspacing=0 cellpadding=5
 
|-bgcolor="#CCCCCC"
 
!width="500px"|Feature
 
!width="200px"|Submitted by
 
!width="100px"|Type
 
!width="300px"|Notes
 
 
|-valign="top"
 
|Halogen chemistry update
 
|Xuan Wang (Harvard)<br>Tomas Sherwen (York)<br>Shuting Zhai (UW)
 
|Science
 
|
 
*Delivered to GCST (Sep 2019)
 
*Originally implemented in v11-02e and currently being updated to 12.5.0 by Will Downs (GCST)
 
 
|}
 
  
 
=== 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
+
 
+
|-valign="top"
+
!colspan="4" bgcolor="#CCFFFF"|Updates that will NOT affect full-chemistry simulations
+
 
+
|-valign="top"
+
|Retire the GNU Make build system in both GEOS-Chem Classic and GCHP and replace with CMake
+
|Liam Bindle (WashU)
+
|Structural
+
|
+
 
+
|-valign="top"
+
|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"
+
|Make HEMCO a Git submodule in GEOS-Chem
+
|[[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
+
|
+
 
+
|}
+
  
 
== Priorities not yet assigned to a particular version ==
 
== Priorities not yet assigned to a particular version ==
Line 116: Line 23:
 
!width="100px"|Type
 
!width="100px"|Type
 
!width="300px"|Notes
 
!width="300px"|Notes
 
|-
 
!colspan="4" bgcolor="#CCFFFF"|Chemistry updates
 
  
 
|-valign="top"
 
|-valign="top"
|[https://www.geosci-model-dev.net/12/111/2019/gmd-12-111-2019.pdf Aromatic VOC chemistry]
+
|Improved wet scavenging (Luo et al., 2020)
|Yingying Yan (PKU)<br>Jintai Lin (PKU)
+
|Gan Luo (Albany)<br>Fanqun Yu (Albany)
|Science
+
|
+
*Currently working out some errors in the mechanism as of this writing (Oct 2019)
+
 
+
|-valign="top"
+
|C2H4 and C2H2 chemistry
+
|Mat Evans and Ryan Pound (U. York)<br>Kelvin Bates and Ke Li (Harvard)<br>Katie Travis (NASA/LaRC)
+
 
|Science
 
|Science
 
|
 
|
 +
*Gan and Fangqun are ready to submit their code upon GCST's request
  
 
|-valign="top"
 
|-valign="top"
Line 140: Line 38:
  
 
|-valign="top"
 
|-valign="top"
|Joint CO, CO2, CH4 simulation
+
|[https://agupubs.onlinelibrary.wiley.com/doi/epdf/10.1029/2006GL026015 Stratospheric HCN chemistry]
|Beata Bukosa (Wollongong)
+
|Armin Kleinbohl (JPL)<br>Debra Weisenstein (Harvard, retired)
 
|Science
 
|Science
 
|
 
|
*Delivered to GCST (Jun 2019)
+
*Delivered to GCST (Jun 2020)
 
+
|-
+
!colspan="4" bgcolor="#CCFFFF"|Emissions and surface fluxes updates
+
  
 
|-valign="top"
 
|-valign="top"
|ODIAC fossil fuel emissions for CO2 simulations
+
|[http://acmg.seas.harvard.edu/publications/2020/moch_HMS_submitted_2020.pdf HMS chemistry]
|Jenny Fisher (UOW)<br>Yi Cao (UOW)
+
|Jonathan Moch (Harvard)
 
|Science
 
|Science
 
|
 
|
*Delivered to GCST (Jan 2020)
 
  
|-valign="top
+
|-valign="top"
|Updated Streets Hg emissions
+
|Trace metal simulation
|Colin Thackray (Harvard)
+
|Junwei Xu (Dalhousie)
 
|Science
 
|Science
|
+
|''Updated Aug 2020''
  
|-valign="top
+
|-
|Updated EDGAR 4.3 Hg emissions
+
|[https://github.com/geoschem/geos-chem/pull/356 Blowing snow emissions of sea salt and bromine]
|Amanda Giang (UBC)
+
|Lyatt Jaegle (UW)
 
|Science
 
|Science
 
|
 
|
 +
*Delivered to GCST (Jun 2020)
  
 
|-valign="top"
 
|-valign="top"
Line 174: 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) ===
Line 198: Line 101:
  
 
|-valign="top"
 
|-valign="top"
|Diagnostic to archive XCO2, XCO, and XCH4
+
|[https://github.com/geoschem/HEMCO/issues/46 Distribute emissions vertically in the boundary layer]
|Dylan Jones (Toronto)
+
|Barron Henderson (EPA)<br>GCST
|Science
+
|Structural &<br>Science
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Provide archived TCR-2 GEOS-Chem OH fields for carbon simulations
+
|Provide climatologies for lightning NOx, volcano, and open fire emissions
|Kazu Miyazaki (JPL)
+
|GCST
 
|Science
 
|Science
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Evaluate the impact on the tropsophere of using the family approach for transport in the stratosphere
+
|C2H4 and C2H2 chemistry
|Christoph Keller (NASA/GMAO)  
+
|Kelvin Bates (Harvard)<br>Ke Li (Harvard)
 
|Science
 
|Science
|
+
|''Updated Sep 2020''
*Important when [[Stratospheric_chemistry#Treatment_of_the_mesosphere_in_UCX_simulations|extending UCX into the mesosphere]]
+
  
 
|-valign="top"
 
|-valign="top"
|[[Stratospheric_chemistry#Treatment_of_the_mesosphere_in_UCX_simulations|Extend UCX into the mesosphere]]
+
|Diagnostic to archive XCO2, XCO, and XCH4
|Sebastian Eastham (MIT)<br>Eric Fleming (NASA GMAO)
+
|Dylan Jones (Toronto)
|Science
+
|
+
 
+
|-valign="top"
+
|Examine differences in the lightning NOx schemes in GEOS-Chem and GMI
+
|Christoph Keller (NASA/GMAO)<br>Lee Murray (Rochester)
+
 
|Science
 
|Science
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|HMS chemistry
+
|Provide archived TCR-2 GEOS-Chem OH fields for carbon simulations
|Jonathan Moch (Harvard)
+
|Kazu Miyazaki (JPL)
 
|Science
 
|Science
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Heterogeneous sulfate production
+
|[[Stratospheric_chemistry#Treatment_of_the_mesosphere_in_UCX_simulations|Extend UCX into the mesosphere]]
|Lin Zhang (PKU)<br>Becky Alexander (UW)<br>Yuxuan Wang (U. Houston)
+
|Sebastian Eastham (MIT)<br>Eric Fleming (NASA GMAO)
|Science
+
|Science
 
|
 
|
  
Line 247: Line 143:
  
 
|-valign="top"
 
|-valign="top"
|Retire carbon-based units for VOCs
+
|Update of US emissions to NEI16
|GCST
+
|Barron Henderson (EPA)
 
|Science
 
|Science
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Update of US emissions to NEI16
+
|One-Way Coupling w/ GISS ModelE3
|Barron Henderson (EPA)
+
|Lee Murray (Rochester)
 +
|Structural
 +
|''Updated Aug 2020''
 +
*Work is finished and a manuscript is in preparation
 +
 
 +
|-valign="top"
 +
|Shared Socioeconomic Pathways Emission Inventories
 +
|Hong Liao (NUIST)
 
|Science
 
|Science
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Updated surface ocean dissolved Hg0 from MITgcm
+
|Ecophysiology module in GEOS-Chem for biosphere-atmosphere exchange
|Yanxu Zhang (Nanjing)
+
|Amos Tai (CUHK)
 
|Science
 
|Science
|
+
|''Updated Aug 2020''
 +
 
  
 
|-valign="top"
 
|-valign="top"
|HEMCO improvements
+
|Rediagnosis of RAS convection in GEOS-Chem
|Christoph Keller (NASA/GMAO)<br>GCST
+
|Tailong He (Toronto)<br>Dylan Jones (Toronto)<br>Andrea Molod (NASA/GMAO)
|Structural
+
|Science
|
+
|''Updated Aug 2020''
 +
*Work is finished and a manuscript is in preparation.
  
 
|-valign="top"
 
|-valign="top"
|Cmake in GCHP
+
|Read-in of native GEOS output in GCHP
|Liam Bindle (Dalhousie)
+
|WUStL GCST
|Structural
+
|Science
|
+
|''Added Sep 2020''
  
 
|-valign="top"
 
|-valign="top"
|One-Way Coupling w/ GISS ModelE3
+
|Adoption of the Spack package manager for dependency management
|Lee Murray (Rochester)<br>Eric Leibensperger (SUNY Plattsburgh)
+
|Harvard GCST
 
|Structural
 
|Structural
|
+
|''Added Sep 2020''
 
+
|-valign="top"
+
|Shared Socioeconomic Pathways Emission Inventories
+
|Hong Liao (NUIST)
+
|Science
+
|
+
  
 
|}
 
|}
 
--[[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 301: 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
+
|
+
 
+
|-valign="top"
+
|Updated cloud water pH
+
|Viral Shah (Harvard)<br>Jonathan Moch (Harvard)
+
 
|Science
 
|Science
 
|
 
|
Line 339: 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"
 
|-valign="top"
|Move GEOS-Chem Classic run directory creation from Unit Tester to source code
+
|Canopy Physics Model
|GCST
+
|Sam Silva (MIT)
 
|Structural
 
|Structural
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Dynamic diagnostic array size allocation based on settings in HISTORY.rc
+
|Landcover/Fire Emissions Offline LPJlmfire
|GCST
+
|Loretta Mickley (Harvard)
|Structural
+
|
+
 
+
|-valign="top"
+
|Removal of binary punch diagnostics
+
|GCST
+
|Structural
+
|
+
 
+
|-valign="top"
+
|GCPy 1-year benchmark and continued development
+
|GCST
+
|Structural
+
|
+
 
+
|-valign="top"
+
|Ecophysiology module in GEOS-Chem for biosphere-atmosphere exchange
+
|Amos Tai (CUHK)
+
 
|Science
 
|Science
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Canopy Physics Model
+
|Integrating GMAO's tracer gridded component in GCHP
|Sam Silva (MIT)
+
|Sebastian Eastham (MIT)
 
|Structural
 
|Structural
|
+
|''Added Sep 2020''
  
 
|-valign="top"
 
|-valign="top"
|Landcover/Fire Emissions Offline LPJlmfire
+
|Mass flux-based transport in GCHP
|Loretta Mickley (Harvard)
+
|Sebastian Eastham (MIT)
 
|Science
 
|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 for POPs (Harvard)<br>Peter Ivatt (York) for PAH
+
|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"
 
|-valign="top"
|Complex / multicomplex variables
+
|Updated treatment of Hg in ocean
|Shannon Capps (Drexel)
+
|Chris Holmes (FSU)
|Structural
+
|Science
|
+
|''Updated Aug 2020''
  
|-valign="top"
 
|Build KPP when you compile GC
 
|GCST
 
|Structural
 
|
 
  
 
|-valign="top"
 
|-valign="top"
|Restructure source code folders
+
|Complex / multicomplex variables
|GCST
+
|Shannon Capps (Drexel)
 
|Structural
 
|Structural
 
|
 
|
Line 507: 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]]'''''

Latest 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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