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

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'''''[[Main_Page|GEOS-Chem Main Page]] | [[GCHP_Main_Page|GCHP Main Page]]'''''
 +
 
On this page we list the current priorities for GEOS-Chem development. This list is continuously updated based on code readiness and input from the 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 Working Groups and the Steering Committee.
  
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== Priorities assigned to upcoming GEOS-Chem versions ==
 
== Priorities assigned to upcoming GEOS-Chem versions ==
  
−
=== 12.3.0 ===
+
=== 12.8.0 ===
  
−
<span style="color:darkorange">'''This version is currently in development. See [[GEOS-Chem_12#12.3.0|the ''GEOS-Chem 12'' wiki page]] for details.'''</span>
+
<span style="color:darkorange">'''This version is currently in development. See [[GEOS-Chem_12#12.8.0|the ''GEOS-Chem 12'' wiki page]] for details.'''</span>
  
−
=== 12.4.0 ===
+
=== 12.9.0 ===
  
−
The items listed below are slated to be included in GEOS-Chem 12.4.0.  This is a feature release which will be validated with a 1-month benchmark simulation and a 1-year benchmark simulation.
+
This version will require 1-month and 1-year full-chemistry benchmarks.
  
 
{| border=1 cellspacing=0 cellpadding=5  
 
{| border=1 cellspacing=0 cellpadding=5  
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!width="200px"|Submitted by
 
!width="200px"|Submitted by
 
!width="100px"|Type
 
!width="100px"|Type
−
!width="300px"|Status
+
!width="300px"|Notes and References
  
−
|-
+
|-valign="top"
−
!colspan="4" bgcolor="#CCFFFF"|Features affecting the full-chemistry simulation:
+
!colspan="4" bgcolor="#CCFFFF"|Updates that WILL AFFECT the full-chemistry simulation
  
 
|-valign="top"
 
|-valign="top"
−
|[[Grid-independent_emissions#Dust_emissions|Grid-independent dust emissions]] (hourly)
+
|[https://www.atmos-chem-phys.net/19/3981/2019/ Updated halogen chemistry]
−
|David Ridley (CARB, formerly MIT)
+
|Xuan Wang (Harvard)<br>Tomas Sherwen (York)<br>Shuting Zhai (UW)
 
|Science
 
|Science
 
|
 
|
−
*Data delivered to GCST (Jan 2019)
+
*Delivered to GCST (Sep 2019)
 +
*Originally implemented in v11-02e and updated to 12.5.0 by Will Downs (GCST)
  
 
|-valign="top"
 
|-valign="top"
−
|[[Grid-independent_emissions#Lightning_NOx_emissions|Grid-independent lightning NOx emissions]] (3-hourly)
+
|Fix incorrect rates in stratosphere for HOBr + SO3/HSO3
−
|Lee Murray (Rochester)
+
|Seb Eastham (MIT)
 
|Science
 
|Science
 
|
 
|
−
*Data delivered to GCST (Jan 2019)
+
*[https://github.com/geoschem/geos-chem/issues/138 geoschem/geos-chem #138]
  
 
|-valign="top"
 
|-valign="top"
−
|[[Grid-independent_emissions#Biogenic_emissions|Grid-independent biogenic emissions]] (hourly)
+
!colspan="4" bgcolor="#CCFFFF"|Updates that WILL NOT AFFECT the full-chemistry simulation
−
|Jintai Lin (PKU)
+
 
−
|Science
+
|-valign="top"
 +
|Reduction of memory for HISTORY diagnostics with a species dimension
 +
|Bob Yantosca ([[GCST]])
 +
|Structural
 
|
 
|
−
*Data delivered to GCST (Jan 2019)
+
*[https://github.com/geoschem/geos-chem/issues/270 geoschem/geos-chem #270]
 +
 
 +
|}
 +
 
 +
=== 13.0.0 ===
 +
 
 +
{| border=1 cellspacing=0 cellpadding=5
 +
|-bgcolor="#CCCCCC"
 +
!width="500px"|Feature
 +
!width="200px"|Submitted by
 +
!width="100px"|Type
 +
!width="300px"|Notes and References
  
 
|-valign="top"
 
|-valign="top"
−
|[[Grid-independent_emissions#Sea_salt_emissions|Grid-independent sea salt emissions]] (hourly)
+
!colspan="4" bgcolor="#CCFFFF"|Updates that will NOT affect full-chemistry simulations
−
|Jintai Lin (PKU)
+
 
−
|Science
+
|-valign="top"
 +
|Retire the GNU Make build system in both GEOS-Chem Classic and GCHP and replace with CMake
 +
|Liam Bindle (WashU)
 +
|Structural
 
|
 
|
−
*Data delivered to GCST (Jan 2019)
 
  
 
|-valign="top"
 
|-valign="top"
−
|[[Grid-independent_emissions#Soil_NOx_emissions|Grid-independent soil NOx emissions]] (hourly)
+
|Retire the GEOS-Chem Unit Tester repository and move GEOS-Chem run directory creation to the GEOS-Chem source code repository
−
|Jintai Lin (PKU)
+
|Melissa Sulprizio (GCST)
−
|Science
+
|Structural
 +
|
 +
 
 +
|-valign="top"
 +
|Make HEMCO a Git submodule in GEOS-Chem
 +
|[[GCST]]
 +
|Structural
 +
|
 +
 
 +
|-valign="top"
 +
|Dynamic diagnostic array size allocation based on settings in HISTORY.rc
 +
|Bob Yantosca (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
 
|
 
|
−
*Data delivered to GCST (Jan 2019)
 
  
 
|}
 
|}
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!width="200px"|Submitted by
 
!width="200px"|Submitted by
 
!width="100px"|Type
 
!width="100px"|Type
−
!width="300px"|Status
+
!width="300px"|Notes
  
 
|-
 
|-
Line 77: Line 122:
  
 
|-valign="top"
 
|-valign="top"
−
|[https://agupubs.onlinelibrary.wiley.com/doi/full/10.1029/2018JD029133 N2O5, NO3, NO2 reactive uptake updates]
+
|Improved wet scavenging (Luo et al., 2020)
−
|Viral Shah (UW)<br>Lyatt Jaegle (UW)<br>Chris Holmes (FSU)<br>Erin McDuffie (Dalhousie)
+
|Gan Luo (Albany)<br>Fanqun Yu (Albany)
 
|Science
 
|Science
 
|
 
|
−
*Delivered to GCST (Dec 2018)
 
  
 
|-valign="top"
 
|-valign="top"
−
|Cloud reactive uptake of NOx
+
|Implement H2 chemistry in UCX
 
|Chris Holmes (FSU)
 
|Chris Holmes (FSU)
 
|Science
 
|Science
 
|
 
|
−
*Implemented in [[GEOS-Chem v11-01|v11-01]]
+
 
 +
|-valign="top"
 +
|Joint CO, CO2, CH4 simulation
 +
|Beata Bukosa (Wollongong)
 +
|Science
 +
|
 +
*Delivered to GCST (Jun 2019)
  
 
|-
 
|-
Line 94: Line 144:
  
 
|-valign="top"
 
|-valign="top"
−
|MEIC emissions over China (2000-2017)
+
|ODIAC fossil fuel emissions for CO2 simulations
−
|Qiang Zhang (Tsinghua)<br>Lu Shen (Harvard)
+
|Jenny Fisher (UOW)<br>Yi Cao (UOW)
 
|Science
 
|Science
 
|
 
|
−
*Available on a collaborative basis; contact developer [mailto:qiangzhang@tsinghua.edu.cn Qiang Zhang]
+
*Delivered to GCST (Jan 2020)
  
−
|-valign="top"
+
|-valign="top
−
|Updates to cold-temperature deposition
+
|Updated Streets Hg emissions
−
|Lyatt Jaegle (UW)
+
|Colin Thackray (Harvard)
 +
|Science
 +
|
 +
 
 +
|-valign="top
 +
|Updated EDGAR 4.3 Hg emissions
 +
|Amanda Giang (UBC)
 
|Science
 
|Science
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Simple parameterization for CO2 dependence of stomatal resistance
+
|Offline CLM Harmonization
−
|Amos Tai (CUHK)
+
|Anthony Wong (BU)<br>Jeff Geddes (BU)
 
|Science
 
|Science
 
|
 
|
  
 
|-
 
|-
−
!colspan="4" bgcolor="#CCFFFF"|Wet deposition updates
+
!colspan="4" bgcolor="#CCFFFF"|Aerosol updates
  
 
|-valign="top"
 
|-valign="top"
−
|Wet deposition parameterizations: Henry's law coefficients, etc.
+
|Arctic marine SOA
−
|Sarah Safieddine (MIT)
+
|Betty Croft (Dalhousie)
 
|Science
 
|Science
 
|
 
|
 +
*Details on wiki only, not in standard code
  
−
|-
+
|}
−
!colspan="4" bgcolor="#CCFFFF"|Aerosol updates
+
 
 +
--[[User:Melissa Payer|Melissa Sulprizio]] ([[User talk:Melissa Payer|talk]]) 16:38, 14 May 2019 (UTC)
 +
 
 +
=== Almost there (< 6 months) ===
 +
 
 +
{| border=1 cellspacing=0 cellpadding=5
 +
|- bgcolor="#cccccc"
 +
!width="500px"|Item
 +
!width="200px"|Author(s)
 +
!width="100px"|Type
 +
!width="300px"|Notes
  
 
|-valign="top"
 
|-valign="top"
−
|[https://www.atmos-chem-phys-discuss.net/acp-2018-459/ Update to hygroscopic growth]
+
|[https://www.geosci-model-dev.net/12/111/2019/gmd-12-111-2019.pdf Aromatic VOC chemistry]
−
|Robyn Latimer (Dalhousie)<br>Randall Martin (Dalhousie)
+
|Kelvin Bates (Harvard)<br>Ke Li (Harvard)
 
|Science
 
|Science
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Sea salt emissions from sea ice
+
|C2H4 and C2H2 chemistry
−
|Jiayue Huang (UW)
+
|Kelvin Bates (Harvard)<br>Ke Li (Harvard)
 +
|Science
 +
|
 +
 
 +
|-valign="top"
 +
|Diagnostic to archive XCO2, XCO, and XCH4
 +
|Dylan Jones (Toronto)
 +
|Science
 +
|
 +
 
 +
|-valign="top"
 +
|Provide archived TCR-2 GEOS-Chem OH fields for carbon simulations
 +
|Kazu Miyazaki (JPL)
 +
|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"
 +
|[[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
 
|Science
 
|
 
|
Line 141: Line 245:
 
|Science
 
|Science
 
|
 
|
−
*Described by Shao et al., ACPD, 2019
 
  
−
|-
+
|-valign="top"
−
!colspan="4" bgcolor="#CCFFFF"|Transport updates
+
|BrC aging
 +
|Xuan Wang (Harvard)<br>Melanie Hammer(Dalhousie)
 +
|Science
 +
|
  
 
|-valign="top"
 
|-valign="top"
−
|[Chemistry_Issues#Correcting_ozone_from_the_height_of_the_lowest_model_level_to_the_surface|ND49 timeseries diagnostic for correcting ozone from the height of the lowest model level to 10m]]
+
|Retire carbon-based units for VOCs
−
|Katie Travis (MIT)
+
|GCST
 
|Science
 
|Science
 
|
 
|
  
−
|-
+
|-valign="top"
−
!colspan="4" bgcolor="#CCFFFF"|Structural updates
+
|Update of US emissions to NEI16
 +
|Barron Henderson (EPA)
 +
|Science
 +
|
 +
 
 +
|-valign="top"
 +
|Updated surface ocean dissolved Hg0 from MITgcm
 +
|Yanxu Zhang (Nanjing)
 +
|Science
 +
|
 +
 
 +
|-valign="top"
 +
|One-Way Coupling w/ GISS ModelE3
 +
|Lee Murray (Rochester)<br>Eric Leibensperger (SUNY Plattsburgh)
 +
|Structural
 +
|
  
 
|-valign="top"
 
|-valign="top"
−
|Carbon cycle outputs in xCO2, xCH4 as a diagnostic
+
|Shared Socioeconomic Pathways Emission Inventories
−
|Beata Bukosa (Wollongong)<br>Dylan Jones (U. Toronto)
+
|Hong Liao (NUIST)
 
|Science
 
|Science
 
|
 
|
Line 163: Line 284:
 
|}
 
|}
  
−
--[[User:Melissa Payer|Melissa Sulprizio]] ([[User talk:Melissa Payer|talk]]) 13:13, 19 February 2019 (UTC)
+
--[[User:Melissa Payer|Melissa Sulprizio]] ([[User talk:Melissa Payer|talk]]) 16:38, 14 May 2019 (UTC)
  
−
=== Almost there (< 6 months) ===
+
=== Over the horizon (6-12 months) ===
  
 
{| border=1 cellspacing=0 cellpadding=5
 
{| border=1 cellspacing=0 cellpadding=5
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!width="200px"|Author(s)
 
!width="200px"|Author(s)
 
!width="100px"|Type
 
!width="100px"|Type
−
!width="300px"|Status
+
!width="300px"|Notes
  
−
|-
+
|-valign="top"
−
!colspan="4" bgcolor="#CCFFFF"|Transport updates
+
|Update OCS simulation in the standard code
 +
|Kevin Bowman (JPL)
 +
|Science
 +
|
  
 
|-valign="top"
 
|-valign="top"
−
|[https://www.geosci-model-dev-discuss.net/gmd-2017-125/ GEOS resolution & subgrid convection]
+
|Examine what are the differences in the PSC implementation in GEOS-Chem and GMI and assess the implications of these differences for startospheric ozone
−
|Karen Yu (Harvard)<br>Bob Yantosca ([[GCST]])<br>Tailong He (Toronto)
+
|Susan Strahan (Goddard)<br>Sebastian Eastham (MIT)
 
|Science
 
|Science
 
|
 
|
−
*Installed in 12.1.0 by Bob Yantosca (Harvard), currently being tested by Tailong He (Toronto)
 
  
−
|-
+
|-valign="top"
−
!colspan="4" bgcolor="#CCFFFF"|GCHP updates
+
|Rediagnosis of RAS convection in GEOS-Chem
 +
|Tailong He (Toronto)<br>Dylan Jones (Toronto)<br>Andrea Molod (NASA/GMAO)
 +
|Science
 +
|
  
 
|-valign="top"
 
|-valign="top"
−
|New version of MAPL
+
|New schedule for tracer transport benchmarks (FP change, scavenging change, or major release)
−
|GMAO<br>Lizzie Lundgren (GCST)
+
|Andrea Molod (NASA/GMAO)
−
|Structural
+
|Science
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Use CMake to simplify GCHP build process
+
|Updated cloud water pH
−
|Liam Bindle (Dalhousie)
+
|Viral Shah (Harvard)<br>Jonathan Moch (Harvard)
−
|Structural
+
|Science
 
|
 
|
  
−
|-
+
|-valign="top"
−
!colspan="4" bgcolor="#CCFFFF"|Structural updates
+
|Methylethylketone chemistry
 +
|Jared Brewer (CSU)
 +
|Science
 +
|
  
 
|-valign="top"
 
|-valign="top"
−
|[[FlexGrid|FlexGrid Stage 2: Enable nested simulations over any custom domains]]
+
|Add sulfate dependence to SOA yield from isoprene in simple SOA
−
|Jiawei Zhuang (Harvard)<br>Melissa Sulprizio ([[GCST]])
+
|Elo&iuml;se Marais (Leicester)
−
|Structural
+
|Science
 
|
 
|
  
−
|}
+
|-valign="top"
 +
|Trace metal simulation
 +
|Junwei Xu (Dalhousie)
 +
|Science
 +
|
  
−
--[[User:Melissa Payer|Melissa Sulprizio]] ([[User talk:Melissa Payer|talk]]) 13:13, 19 February 2019 (UTC)
+
|-valign="top"
−
 
+
|Hg gas-phase photo-reduction
−
=== Over the horizon (6-12 months) ===
+
|Colin Thackray (Harvard)
−
 
+
|Science
−
{| border=1 cellspacing=0 cellpadding=5
+
|
−
|- bgcolor="#cccccc"
+
−
!width="500px"|Item
+
−
!width="200px"|Author(s)
+
−
!width="100px"|Type
+
−
!width="300px"|Status
+
  
 
|-valign="top"
 
|-valign="top"
Line 228: Line 356:
  
 
|-valign="top"
 
|-valign="top"
−
|Additional modifications for [[FlexChem]], including:
+
|Canopy Physics Model
−
*Rebuild the pre-built chemistry mechanisms (Standard, Tropchem, SOA-SVPOA) with [http://www.paratools.com/Kppa Kppa]
+
|Sam Silva (MIT)
−
*Add capability for custom chemistry mechanism by building KPP on-the-fly in GEOS-Chem
+
−
|[[GCST]]
+
 
|Structural
 
|Structural
 
|
 
|
−
*Mike Long, who was the principal proponent behind these updates, has since left the GC community.
+
 
−
*We are not sure who will take this over
+
|-valign="top"
 +
|Landcover/Fire Emissions Offline LPJlmfire
 +
|Loretta Mickley (Harvard)
 +
|Science
 +
|
  
 
|}
 
|}
  
−
--[[User:Melissa Payer|Melissa Sulprizio]] ([[User talk:Melissa Payer|talk]]) 13:13, 19 February 2019 (UTC)
+
--[[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 248: Line 378:
 
!width="200px"|Author(s)
 
!width="200px"|Author(s)
 
!width="100px"|Type
 
!width="100px"|Type
−
!width="300px"|Status
+
!width="300px"|Notes
  
 
|-valign="top"
 
|-valign="top"
−
|None at this time
+
|Implement isotope simulation for CO and CH4 in GCHP
 +
|Lee Murray (Rochester)
 +
|Science
 
|
 
|
 +
 +
|-valign="top"
 +
|Migrate LETFK DA scheme to GCHP
 +
|Kazu Miyazaki (JPL)
 +
|Science
 
|
 
|
 +
 +
|-valign="top"
 +
|Super fast chemistry scheme
 +
|Benjamin Brown-Steiner (AER)<br>Makoto Kelp (Harvard)
 +
|Science
 +
|
 +
 +
|-valign="top"
 +
|Add non-volatile cations to ISORROPIA
 +
|Becky Alexander (UW)
 +
|Science
 +
|
 +
 +
|-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"
 +
|DMS oxidation scheme updating
 +
|Becky Alexander (UW)<br>Qianjie Chen (UW)
 +
|Science
 +
|
 +
 +
|-valign="top"
 +
|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
 +
|Science
 +
|
 +
 +
|-valign="top"
 +
|Hg in WRF-GC
 +
|Yanxu Zhang (Nanjing)
 +
|Science
 +
|
 +
 +
|-valign="top"
 +
|Hg with blowing snow
 +
|Yanxu Xhang (Nanjing)
 +
|Science
 +
|
 +
 +
|-valign="top"
 +
|Updated treatment of Hg in ocean
 +
|Chris Holmes (FSU)
 +
|Science
 +
|
 +
 +
|-valign="top"
 +
|GTMM updates
 +
|Ben Geyman (Harvard)
 +
|Science
 +
|
 +
 +
|-valign="top"
 +
|Complex / multicomplex variables
 +
|Shannon Capps (Drexel)
 +
|Structural
 +
|
 +
 +
|-valign="top"
 +
|Build KPP when you compile GC
 +
|GCST
 +
|Structural
 +
|
 +
 +
|-valign="top"
 +
|Restructure source code folders
 +
|GCST
 +
|Structural
 +
|
 +
 +
|-valign="top"
 +
|Archived CMIP6 Met Products for GEOS-Chem Input
 +
|Lee Murray (Rochester)
 +
|Science
 
|
 
|
  
 
|}
 
|}
  
−
--[[User:Melissa Payer|Melissa Sulprizio]] ([[User talk:Melissa Payer|talk]]) 13:13, 19 February 2019 (UTC)
+
--[[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]]'''''

Revision as of 15:50, 3 April 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

12.8.0

This version is currently in development. See the GEOS-Chem 12 wiki page for details.

12.9.0

This version will require 1-month and 1-year full-chemistry benchmarks.

Feature Submitted by Type Notes and References
Updates that WILL AFFECT the full-chemistry simulation
Updated halogen chemistry Xuan Wang (Harvard)
Tomas Sherwen (York)
Shuting Zhai (UW) 		Science
  • Delivered to GCST (Sep 2019)
  • Originally implemented in v11-02e and updated to 12.5.0 by Will Downs (GCST)
Fix incorrect rates in stratosphere for HOBr + SO3/HSO3 Seb Eastham (MIT) Science
Updates that WILL NOT AFFECT the full-chemistry simulation
Reduction of memory for HISTORY diagnostics with a species dimension Bob Yantosca (GCST) Structural

13.0.0

Feature Submitted by Type Notes and References
Updates that will NOT affect full-chemistry simulations
Retire the GNU Make build system in both GEOS-Chem Classic and GCHP and replace with CMake Liam Bindle (WashU) Structural
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
Make HEMCO a Git submodule in GEOS-Chem GCST Structural
Dynamic diagnostic array size allocation based on settings in HISTORY.rc Bob Yantosca (GCST) Structural
Features only affecting GCHP:
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
Separate HEMCO from GEOS-Chem to use as an ESMF gridded component in GCHP Lizzie Lundgren (GCST) Structural

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
Chemistry updates
Improved wet scavenging (Luo et al., 2020) Gan Luo (Albany)
Fanqun Yu (Albany) 		Science
Implement H2 chemistry in UCX Chris Holmes (FSU) Science
Joint CO, CO2, CH4 simulation Beata Bukosa (Wollongong) Science
  • Delivered to GCST (Jun 2019)
Emissions and surface fluxes updates
ODIAC fossil fuel emissions for CO2 simulations Jenny Fisher (UOW)
Yi Cao (UOW) 		Science
  • Delivered to GCST (Jan 2020)
Updated Streets Hg emissions Colin Thackray (Harvard) Science
Updated EDGAR 4.3 Hg emissions Amanda Giang (UBC) Science
Offline CLM Harmonization Anthony Wong (BU)
Jeff Geddes (BU) 		Science
Aerosol updates
Arctic marine SOA Betty Croft (Dalhousie) Science
  • Details on wiki only, not in standard code

--Melissa Sulprizio (talk) 16:38, 14 May 2019 (UTC)

Almost there (< 6 months)

Item Author(s) Type Notes
Aromatic VOC chemistry Kelvin Bates (Harvard)
Ke Li (Harvard) 		Science
C2H4 and C2H2 chemistry Kelvin Bates (Harvard)
Ke Li (Harvard) 		Science
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
Evaluate the impact on the tropsophere of using the family approach for transport in the stratosphere Christoph Keller (NASA/GMAO) Science
Extend UCX into the mesosphere Sebastian Eastham (MIT)
Eric Fleming (NASA GMAO) 		Science
Examine differences in the lightning NOx schemes in GEOS-Chem and GMI Christoph Keller (NASA/GMAO)
Lee Murray (Rochester) 		Science
HMS chemistry Jonathan Moch (Harvard) Science
Heterogeneous sulfate production Lin Zhang (PKU)
Becky Alexander (UW)
Yuxuan Wang (U. Houston) 		Science
BrC aging Xuan Wang (Harvard)
Melanie Hammer(Dalhousie) 		Science
Retire carbon-based units for VOCs GCST Science
Update of US emissions to NEI16 Barron Henderson (EPA) Science
Updated surface ocean dissolved Hg0 from MITgcm Yanxu Zhang (Nanjing) Science
One-Way Coupling w/ GISS ModelE3 Lee Murray (Rochester)
Eric Leibensperger (SUNY Plattsburgh) 		Structural
Shared Socioeconomic Pathways Emission Inventories Hong Liao (NUIST) Science

--Melissa Sulprizio (talk) 16:38, 14 May 2019 (UTC)

Over the horizon (6-12 months)

Item Author(s) Type Notes
Update OCS simulation in the standard code Kevin Bowman (JPL) Science
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)
Sebastian Eastham (MIT) 		Science
Rediagnosis of RAS convection in GEOS-Chem Tailong He (Toronto)
Dylan Jones (Toronto)
Andrea Molod (NASA/GMAO) 		Science
New schedule for tracer transport benchmarks (FP change, scavenging change, or major release) Andrea Molod (NASA/GMAO) Science
Updated cloud water pH Viral Shah (Harvard)
Jonathan Moch (Harvard) 		Science
Methylethylketone chemistry Jared Brewer (CSU) Science
Add sulfate dependence to SOA yield from isoprene in simple SOA Eloïse Marais (Leicester) Science
Trace metal simulation Junwei Xu (Dalhousie) Science
Hg gas-phase photo-reduction Colin Thackray (Harvard) Science
Ecophysiology module in GEOS-Chem for biosphere-atmosphere exchange Amos Tai (CUHK) Science
Canopy Physics Model Sam Silva (MIT) Structural
Landcover/Fire Emissions Offline LPJlmfire Loretta Mickley (Harvard) Science

--Melissa Sulprizio (talk) 16:38, 14 May 2019 (UTC)

Longer term (12-24 months)

Item Author(s) Type Notes
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
Add non-volatile cations to ISORROPIA Becky Alexander (UW) Science
Update Europe emissions to EMEP 2016 Eloise Marais (Leicester) Science
MEGAN3 Sam Silva (MIT)
Jen Kaiser (GIT)
Yuxuan Wang (UH) 		Science
DMS oxidation scheme updating Becky Alexander (UW)
Qianjie Chen (UW) 		Science
Streamlining of specialty simulations through HEMCO and KPP GCST
Chris Holmes (FSU)
Colin Thackray for POPs (Harvard)
Peter Ivatt (York) for PAH 		Science
Hg in WRF-GC Yanxu Zhang (Nanjing) Science
Hg with blowing snow Yanxu Xhang (Nanjing) Science
Updated treatment of Hg in ocean Chris Holmes (FSU) Science
GTMM updates Ben Geyman (Harvard) Science
Complex / multicomplex variables Shannon Capps (Drexel) Structural
Build KPP when you compile GC GCST Structural
Restructure source code folders GCST Structural
Archived CMIP6 Met Products for GEOS-Chem Input Lee Murray (Rochester) Science

--Melissa Sulprizio (talk) 16:38, 14 May 2019 (UTC)

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