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

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We also invite you to view our [https://trello.com/board/geos-chem-support-team/4fe36668fc79a1d3540ba80b GEOS-Chem Support Team project management board on Trello.com], which shows the current GCST workflow.
 
We also invite you to view our [https://trello.com/board/geos-chem-support-team/4fe36668fc79a1d3540ba80b GEOS-Chem Support Team project management board on Trello.com], which shows the current GCST workflow.
 +
 +
== GEOS-Chem versions in development ==
 +
 +
=== 13.0.0 ===
 +
 +
<span style="color:darkorange">'''See the [[GEOS-Chem 13.0.0]] page for more details.'''''</span>
  
 
== Priorities assigned to upcoming GEOS-Chem versions ==
 
== Priorities assigned to upcoming GEOS-Chem versions ==
  
=== 12.7.0 ===
+
TBD
  
<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>
+
== Priorities not yet assigned to a particular version ==
  
=== 12.8.0 ===
+
The following items have been identified as priorities for GEOS-Chem, but have not yet been assigned to a particular GEOS-Chem version.
  
This version will require 1-month and 1-year full-chemistry benchmarks.
+
=== Ready to go in ===
  
 
{| border=1 cellspacing=0 cellpadding=5  
 
{| border=1 cellspacing=0 cellpadding=5  
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|-valign="top"
 
|-valign="top"
|[https://www.atmos-chem-phys.net/19/9613/2019/ Isoprene chemistry]
+
|[https://gmd.copernicus.org/articles/13/2879/2020/ Improved wet scavenging from Luo et al. (2020)]
|Kelvin Bates (Harvard)
+
|Gan Luo (Albany)<br>Fangqun Yu (Albany)
 
|Science
 
|Science
 
|
 
|
 +
*Delivered to GCST (Nov 2020)
 +
*See [https://github.com/geoschem/geos-chem/pull/522 geoschem/geos-chem PR #522]
  
 
|-valign="top"
 
|-valign="top"
|[https://agupubs.onlinelibrary.wiley.com/doi/full/10.1002/2017GL075270 Wet deposition parameterization]
+
|[https://github.com/geoschem/geos-chem/issues/559 Implement H2 chemistry in UCX]
|Kelvin Bates (Harvard)<br>GCST
+
|Chris Holmes (FSU)
 
|Science
 
|Science
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Ozone deposition to the ocean
+
|[https://agupubs.onlinelibrary.wiley.com/doi/epdf/10.1029/2006GL026015 Stratospheric HCN chemistry]
|Ryan Pound (York)<br>Mat Evans (York)
+
|Armin Kleinbohl (JPL)<br>Debra Weisenstein (Harvard, retired)
 
|Science
 
|Science
 
|
 
|
 
+
*Delivered to GCST (Jun 2020)
|}
+
 
+
=== 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"
 
|-valign="top"
|Halogen chemistry update
+
|[http://acmg.seas.harvard.edu/publications/2020/moch_HMS_submitted_2020.pdf HMS chemistry]
|Xuan Wang (Harvard)<br>Tomas Sherwen (York)<br>Shuting Zhai (UW)
+
|Jonathan Moch (Harvard)
 
|Science
 
|Science
 
|
 
|
*Delivered to GCST (Sep 2019)
+
*Delivered to GCST (Sep 2020)
*Originally implemented in v11-02e and currently being updated to 12.5.0 by Will Downs (GCST)
+
*See [https://github.com/geoschem/geos-chem/pull/456 geoschem/geos-chem PR #456]
 
+
|}
+
 
+
=== 13.0.0 ===
+
 
+
{| border=1 cellspacing=0 cellpadding=5
+
|-bgcolor="#CCCCCC"
+
!width="500px"|Feature
+
!width="200px"|Submitted by
+
!width="100px"|Type
+
!width="300px"|Notes
+
  
 
|-valign="top"
 
|-valign="top"
!colspan="4" bgcolor="#CCFFFF"|Updates that will NOT affect full-chemistry simulations
+
|[https://www.sciencedirect.com/science/article/abs/pii/S1352231019305138?via%3Dihub Trace metal simulation]
 
+
|Junwei Xu (Dalhousie)
|-valign="top"
+
|Science
|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
+
 
|
 
|
 +
*Delivered to GCST (Nov 2020)
 +
*See [https://github.com/geoschem/geos-chem/pull/511 geoschem/geos-chem PR #511]
  
 
|-
 
|-
!colspan="4" bgcolor="#CCFFFF"|Features only affecting GCHP:
+
|[https://acp.copernicus.org/articles/17/3699/2017/ Blowing snow emissions of sea salt and bromine]
 
+
|Lyatt Jaegle (UW)
|-valign="top"
+
|Science
|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
+
 
|
 
|
 
+
*Delivered to GCST (Jun 2020)
|}
+
*See [https://github.com/geoschem/geos-chem/pull/356 geoschem/geos-chem PR #356]
 
+
== 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 ===
+
 
+
{| border=1 cellspacing=0 cellpadding=5
+
|-bgcolor="#CCCCCC"
+
!width="500px"|Feature
+
!width="200px"|Submitted by
+
!width="100px"|Type
+
!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]
+
|[http://globalchange.bnu.edu.cn/research/laiv6 Updated Yuan/BNU MODIS LAI product (2000-2019)]
|Yingying Yan (PKU)<br>Jintai Lin (PKU)
+
|Jenny Fisher (U. Wollongong)
 
|Science
 
|Science
 
|
 
|
*Currently working out some errors in the mechanism as of this writing (Oct 2019)
+
*Processing scripts delivered to GCST (Aug 2020)
  
 
|-valign="top"
 
|-valign="top"
|C2H4 and C2H2 chemistry
+
|[https://gmd.copernicus.org/articles/13/2569/2020/ MEGAN3]
|Mat Evans and Ryan Pound (U. York)<br>Kelvin Bates and Ke Li (Harvard)<br>Katie Travis (NASA/LaRC)
+
|Sam Silva (MIT)
 
|Science
 
|Science
 
|
 
|
 +
*Implementation details may be found at https://zenodo.org/record/3614062#.XzvrH5NKjOR
  
 
|-valign="top"
 
|-valign="top"
|Implement H2 chemistry in UCX
+
|[https://gmd.copernicus.org/articles/13/2569/2020/ Canopy Physics Model]
|Chris Holmes (FSU)
+
|Sam Silva (MIT)
|Science
+
|Structural
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Joint CO, CO2, CH4 simulation
+
|[https://github.com/geoschem/geos-chem/issues/547 Update US emissions to NEI2016]
|Beata Bukosa (Wollongong)
+
|Barron Henderson (EPA)<br>Lyssa Freese (MIT)
 
|Science
 
|Science
 
|
 
|
*Delivered to GCST (Jun 2019)
+
*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."
 
+
|-
+
!colspan="4" bgcolor="#CCFFFF"|Emissions and surface fluxes updates
+
  
 
|-valign="top"
 
|-valign="top"
|ODIAC fossil fuel emissions for CO2 simulations
+
|[https://github.com/geoschem/HEMCO/issues/46 Distribute emissions vertically in the boundary layer]
|Jenny Fisher (UOW)<br>Yi Cao (UOW)
+
|Barron Henderson (EPA)<br>GCST
|Science
+
|Structural &<br>Science
 
|
 
|
*Delivered to GCST (Jan 2020)
+
*Vertical profiles have been delivered to GCST
  
|-valign="top
+
|-valign="top"
|Updated Streets Hg emissions
+
|[https://acp.copernicus.org/articles/17/3699/2017/ GC-YIBs biosphere-atmospheric chemistry coupled model]
|Colin Thackray (Harvard)
+
|Xu Yue (NUIST)
 
|Science
 
|Science
 
|
 
|
 +
*See [https://github.com/geoschem/geos-chem/pull/356 geoschem/geos-chem #356]
  
|-valign="top
+
|-valign="top"
|Updated EDGAR 4.3 Hg emissions
+
|[https://github.com/geoschem/geos-chem/issues/560 C2H4 and C2H2 chemistry]
|Amanda Giang (UBC)
+
|Kelvin Bates (Harvard)<br>Ke Li (Harvard)
 
|Science
 
|Science
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Offline CLM Harmonization
+
|[[Stratospheric_chemistry#Treatment_of_the_mesosphere_in_UCX_simulations|Extend UCX into the mesosphere]]
|Anthony Wong (BU)<br>Jeff Geddes (BU)
+
|Sebastian Eastham (MIT)<br>Eric Fleming (NASA GMAO)
|Science
+
|Science
 
|
 
|
 
|-
 
!colspan="4" bgcolor="#CCFFFF"|Aerosol updates
 
  
 
|-valign="top"
 
|-valign="top"
|Arctic marine SOA
+
|[https://github.com/geoschem/geos-chem/issues/331 Provide climatologies for lightning NOx, volcano, and open fire emissions]
|Betty Croft (Dalhousie)
+
|GCST
 
|Science
 
|Science
 
|
 
|
*Details on wiki only, not in standard code
 
  
 
|}
 
|}
 
--[[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"
|Evaluate the impact on the tropsophere of using the family approach for transport in the stratosphere
+
|Aromatic VOC chemistry
|Christoph Keller (NASA/GMAO)  
+
|Kelvin Bates (Harvard)<br>Ke Li (Harvard)
 
|Science
 
|Science
|
+
|''Status updated Sep 2020''
*Important when [[Stratospheric_chemistry#Treatment_of_the_mesosphere_in_UCX_simulations|extending UCX into the mesosphere]]
+
 
+
|-valign="top"
+
|[[Stratospheric_chemistry#Treatment_of_the_mesosphere_in_UCX_simulations|Extend UCX into the mesosphere]]
+
|Sebastian Eastham (MIT)<br>Eric Fleming (NASA GMAO)
+
|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"
+
|HMS chemistry
+
|Jonathan Moch (Harvard)
+
|Science
+
|
+
 
+
|-valign="top"
+
|Heterogeneous sulfate production
+
|Lin Zhang (PKU)<br>Becky Alexander (UW)<br>Yuxuan Wang (U. Houston)
+
|Science
+
|
+
  
 
|-valign="top"
 
|-valign="top"
Line 247: Line 168:
  
 
|-valign="top"
 
|-valign="top"
|Retire carbon-based units for VOCs
+
|One-Way Coupling w/ GISS ModelE3
|GCST
+
|Lee Murray (Rochester)
|Science
+
|Structural
|
+
|''Status updated Aug 2020''
 +
*Work is finished and a manuscript is in preparation
  
 
|-valign="top"
 
|-valign="top"
|Update of US emissions to NEI16
+
|Shared Socioeconomic Pathways Emission Inventories
|Barron Henderson (EPA)
+
|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
|
+
|''Status updated Aug 2020''
  
|-valign="top"
 
|HEMCO improvements
 
|Christoph Keller (NASA/GMAO)<br>GCST
 
|Structural
 
|
 
  
 
|-valign="top"
 
|-valign="top"
|Cmake in GCHP
+
|Rediagnosis of RAS convection in GEOS-Chem
|Liam Bindle (Dalhousie)
+
|Tailong He (Toronto)<br>Dylan Jones (Toronto)<br>Andrea Molod (NASA/GMAO)
|Structural
+
|Science
|
+
|''Status updated Aug 2020''
 +
*Work is finished and a manuscript is in preparation.
  
 
|-valign="top"
 
|-valign="top"
|Connect to GMAO MAPL and FV3 repositories directly from GCHP and separate ESMF as an external library
+
|Read-in of native GEOS output in GCHP
|Lizzie Lundgren (Harvard)
+
|WUStL GCST
|Structural
+
|Science
|
+
|''Status updated 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
|
+
|''Status updated 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 310: Line 220:
 
|Update OCS simulation in the standard code
 
|Update OCS simulation in the standard code
 
|Kevin Bowman (JPL)
 
|Kevin Bowman (JPL)
|Science
 
|
 
 
|-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
 
|Susan Strahan (Goddard)<br>Sebastian Eastham (MIT)
 
|Science
 
|
 
 
|-valign="top"
 
|Rediagnosis of RAS convection in GEOS-Chem
 
|Tailong He (Toronto)<br>Dylan Jones (Toronto)<br>Andrea Molod (NASA/GMAO)
 
|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 345: Line 231:
 
|-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
|
+
|''Status updated July 2020''
  
 
|-valign="top"
 
|-valign="top"
|Hg gas-phase photo-reduction
+
|GTMM updates
|Colin Thackray (Harvard)
+
|Ben Geyman (Harvard)
 
|Science
 
|Science
|
+
|''Status updated Aug 2020''
  
 
|-valign="top"
 
|-valign="top"
|Move GEOS-Chem Classic run directory creation from Unit Tester to source code
+
|Landcover/Fire Emissions Offline LPJlmfire
|GCST
+
|Loretta Mickley (Harvard)
|Structural
+
|Science
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Dynamic diagnostic array size allocation based on settings in HISTORY.rc
+
|Integrating GMAO's tracer gridded component in GCHP
|GCST
+
|Sebastian Eastham (MIT)
 
|Structural
 
|Structural
|
+
|''Status updated Sep 2020''
  
 
|-valign="top"
 
|-valign="top"
|Removal of binary punch diagnostics
+
|Mass flux-based transport in GCHP
|GCST
+
|Sebastian Eastham (MIT)
|Structural
+
|Science
|
+
|''Status updated Sep 2020''
  
 
|-valign="top"
 
|-valign="top"
|GCPy 1-year benchmark and continued development
+
|Streamlining of specialty simulations through HEMCO and KPP
 
|GCST
 
|GCST
|Structural
 
|
 
 
|-valign="top"
 
|Ecophysiology module in GEOS-Chem for biosphere-atmosphere exchange
 
|Amos Tai (CUHK)
 
|Science
 
|
 
 
|-valign="top"
 
|Canopy Physics Model
 
|Sam Silva (MIT)
 
|Structural
 
|
 
 
|-valign="top"
 
|Landcover/Fire Emissions Offline LPJlmfire
 
|Loretta Mickley (Harvard)
 
 
|Science
 
|Science
 
|
 
|
  
 
|}
 
|}
 
--[[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 415: Line 283:
 
!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 432: Line 306:
 
|Benjamin Brown-Steiner (AER)<br>Makoto Kelp (Harvard)
 
|Benjamin Brown-Steiner (AER)<br>Makoto Kelp (Harvard)
 
|Science
 
|Science
|
+
|''Status 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 438: Line 314:
 
|Becky Alexander (UW)
 
|Becky Alexander (UW)
 
|Science
 
|Science
|
+
|''Status updated Aug 2020''
 
+
|-valign="top"
+
|Update Europe emissions to EMEP 2016
+
|Eloise Marais (Leicester)
+
|Science
+
|
+
 
+
|-valign="top"
+
|MEGAN3
+
|Sam Silva (MIT)<br>Jen Kaiser (GIT)<br>Yuxuan Wang (UH)
+
|Science
+
|
+
  
 
|-valign="top"
 
|-valign="top"
Line 456: Line 320:
 
|Becky Alexander (UW)<br>Qianjie Chen (UW)
 
|Becky Alexander (UW)<br>Qianjie Chen (UW)
 
|Science
 
|Science
|
+
|''Status updated Aug 2020''
 +
*Delayed - implemented pre-KPP
 +
*Currently bring implemented in KPP by UC Riverside group
  
 
|-valign="top"
 
|-valign="top"
|Streamlining of specialty simulations through HEMCO and KPP
+
|Heterogeneous sulfate production
|GCST<br>Chris Holmes (FSU)<br>Colin Thackray for POPs (Harvard)<br>Peter Ivatt (York) for PAH
+
|Lin Zhang (PKU)<br>Becky Alexander (UW)<br>Yuxuan Wang (U. Houston)
 
|Science
 
|Science
|
+
|''Status updated Aug 2020''
 +
*Delayed - implemented pre-KPP
  
 
|-valign="top"
 
|-valign="top"
Line 468: Line 335:
 
|Yanxu Zhang (Nanjing)
 
|Yanxu Zhang (Nanjing)
 
|Science
 
|Science
|
+
|''Status updated Aug 2020''
  
 
|-valign="top"
 
|-valign="top"
Line 474: Line 341:
 
|Yanxu Xhang (Nanjing)
 
|Yanxu Xhang (Nanjing)
 
|Science
 
|Science
|
+
|''Status 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
|
+
|''Status updated Aug 2020''
  
 
|-valign="top"
 
|-valign="top"
|GTMM updates
+
|Hg in CESM CAM-CHEM
|Ben Geyman (Harvard)
+
|Peng Zhang, Yanxu Xhang (Nanjing)
 
|Science
 
|Science
|
+
|''Status updated Aug 2020''
  
 
|-valign="top"
 
|-valign="top"
 
|Complex / multicomplex variables
 
|Complex / multicomplex variables
 
|Shannon Capps (Drexel)
 
|Shannon Capps (Drexel)
|Structural
 
|
 
 
|-valign="top"
 
|Build KPP when you compile GC
 
|GCST
 
|Structural
 
|
 
 
|-valign="top"
 
|Restructure source code folders
 
|GCST
 
 
|Structural
 
|Structural
 
|
 
|
Line 513: Line 368:
  
 
|}
 
|}
 
--[[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 19:20, 1 December 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.

GEOS-Chem versions in development

13.0.0

See the GEOS-Chem 13.0.0 page for more details.

Priorities assigned to upcoming GEOS-Chem versions

TBD

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 from Luo et al. (2020) Gan Luo (Albany)
Fangqun Yu (Albany)
Science
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
Blowing snow emissions of sea salt and bromine Lyatt Jaegle (UW) 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
Canopy Physics Model Sam Silva (MIT) Structural
Update US emissions to NEI2016 Barron Henderson (EPA)
Lyssa Freese (MIT)
Science
  • Files available at 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."
Distribute emissions vertically in the boundary layer Barron Henderson (EPA)
GCST
Structural &
Science
  • Vertical profiles have been delivered to GCST
GC-YIBs biosphere-atmospheric chemistry coupled model Xu Yue (NUIST) Science
C2H4 and C2H2 chemistry Kelvin Bates (Harvard)
Ke Li (Harvard)
Science
Extend UCX into the mesosphere Sebastian Eastham (MIT)
Eric Fleming (NASA GMAO)
Science
Provide climatologies for lightning NOx, volcano, and open fire emissions GCST Science

Almost there (< 6 months)

Item Author(s) Type Notes
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
Aromatic VOC chemistry Kelvin Bates (Harvard)
Ke Li (Harvard)
Science Status updated Sep 2020
BrC aging Xuan Wang (Harvard)
Melanie Hammer(Dalhousie)
Science
One-Way Coupling w/ GISS ModelE3 Lee Murray (Rochester) Structural Status 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 Status updated Aug 2020


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

Over the horizon (6-12 months)

Item Author(s) Type Notes
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 Status updated July 2020
GTMM updates Ben Geyman (Harvard) Science Status updated Aug 2020
Landcover/Fire Emissions Offline LPJlmfire Loretta Mickley (Harvard) Science
Integrating GMAO's tracer gridded component in GCHP Sebastian Eastham (MIT) Structural Status updated Sep 2020
Mass flux-based transport in GCHP Sebastian Eastham (MIT) Science Status updated Sep 2020
Streamlining of specialty simulations through HEMCO and KPP GCST Science

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 Status 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 Status updated Aug 2020
DMS oxidation scheme updating Becky Alexander (UW)
Qianjie Chen (UW)
Science Status 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 Status updated Aug 2020
  • Delayed - implemented pre-KPP
Hg in WRF-GC Yanxu Zhang (Nanjing) Science Status updated Aug 2020
Hg with blowing snow Yanxu Xhang (Nanjing) Science Status updated Aug 2020
Hg isotopes Xiaotian Xu, Yanxu Xhang (Nanjing) Science Status updated Aug 2020
Hg in CESM CAM-CHEM Peng Zhang, Yanxu Xhang (Nanjing) Science Status 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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