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

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(Almost there (< 6 months))
 
(124 intermediate revisions by 3 users not shown)
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== Priorities assigned to upcoming GEOS-Chem versions ==
 
== Priorities assigned to upcoming GEOS-Chem versions ==
  
=== 12.6.0 ===
+
=== 13.0.0 ===
  
<span style="color:darkorange">'''This version is currently in development. See [[GEOS-Chem_12#12.6.0|the ''GEOS-Chem 12'' wiki page]] for details.'''</span>
+
<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>
  
=== 12.7.0 ===
+
== Priorities not yet assigned to a particular version ==
  
This version will require 1-month and 1-year full-chemistry benchmarks and a 1-year Transport Tracers benchmark.
+
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  
 
{| border=1 cellspacing=0 cellpadding=5  
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!width="100px"|Type
 
!width="100px"|Type
 
!width="300px"|Notes
 
!width="300px"|Notes
 
|-
 
!colspan="4" bgcolor="#CCFFFF"|Features affecting the full-chemistry simulation:
 
  
 
|-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
 
|Science
 
|
 
|
*Delivered to GCST (Jul 2019)
+
*Gan and Fangqun are ready to submit their code upon GCST's request
  
 
|-valign="top"
 
|-valign="top"
|[https://agupubs.onlinelibrary.wiley.com/doi/full/10.1029/2018JD029046 Small alkyl nitrate chemistry]
+
|Implement H2 chemistry in UCX
|Jenny Fisher (Wollongong)
+
|Chris Holmes (FSU)
 
|Science
 
|Science
 
|
 
|
*Delivered to GCST (Jul 2019)
 
  
 
|-valign="top"
 
|-valign="top"
|Methanol as part of standard chemical mechanism
+
|[https://agupubs.onlinelibrary.wiley.com/doi/epdf/10.1029/2006GL026015 Stratospheric HCN chemistry]
|Dylan Millet (U Minnesota)<br>Katie Travis (NASA)
+
|Armin Kleinbohl (JPL)<br>Debra Weisenstein (Harvard, retired)
 
|Science
 
|Science
 
|
 
|
*Implemented in v10-01; Needs to be brought up to GEOS-Chem 12
+
*Delivered to GCST (Jun 2020)
  
 
|-valign="top"
 
|-valign="top"
|[[Leaf_area_indices_in_GEOS-Chem#Yuan_processed_MODIS_LAI|Update to Yuan processed MODIS LAI product (covering years 2005-2016)]]
+
|[http://acmg.seas.harvard.edu/publications/2020/moch_HMS_submitted_2020.pdf HMS chemistry]
|GCST
+
|Jonathan Moch (Harvard)
 
|Science
 
|Science
 
|
 
|
*NOTE: Will require an update to HEMCO to enable reading of data with 8-day intervals into GEOS-Chem "Classic"
 
  
 
|-valign="top"
 
|-valign="top"
|[https://www.geosci-model-dev.net/12/3439/2019/ Rainout and washout update]
+
|Trace metal simulation
|Gan Luo(SUNY-Albany)<br>Fangqun Yu (SUNY-Albany)
+
|Junwei Xu (Dalhousie)
 
|Science
 
|Science
|
+
|''Updated Aug 2020''
 
+
|-valign="top"
+
|Ozone deposition to the ocean
+
|Ryan Pound (York)<br>Mat Evans (York)
+
|Science
+
|
+
  
 
|-
 
|-
!colspan="4" bgcolor="#CCFFFF"|Features NOT affecting the full-chemistry simulation:
+
|[https://github.com/geoschem/geos-chem/pull/356 Blowing snow emissions of sea salt and bromine]
 
+
|Lyatt Jaegle (UW)
|-valign="top"
+
|Allow HEMCO to read files at specified time intervals to improve file I/O
+
|[[GCST]]
+
|Structural
+
|
+
 
+
|-valign="top"
+
|[[Benchmark/GEOS-Chem_12.5.0#Validation_of_netCDF_diagnostics|Begin removal of binary punch (aka "bpch") diagnostics]]
+
|[[GCST]]
+
|Structural
+
|
+
 
+
|-valign="top"
+
|[https://github.com/geoschem/geos-chem/issues/69 Add netCDF diagnostic for UV fluxes from FAST-JX]
+
|Jonathan Moch (Harvard)<br>Bob Yantosca ([[GCST]])
+
|Structural
+
|
+
*In dev/12.7.0 branch
+
 
+
|-
+
!colspan="4" bgcolor="#CCFFFF"|Features only affecting GCHP:
+
 
+
|-valign="top"
+
|Add meteorology to internal state to scale mixing ratios if FV3 off
+
|Lizzie Lundgren (GCST)
+
|Structural
+
|
+
*Enables mass conservation when advection is off
+
 
+
|}
+
 
+
=== 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
 
|Science
 
|
 
|
 +
*Delivered to GCST (Jun 2020)
  
 
|-valign="top"
 
|-valign="top"
|[https://agupubs.onlinelibrary.wiley.com/doi/full/10.1002/2017GL075270 Wet deposition parameterization]
+
|Offline CLM Harmonization
|Kelvin Bates (Harvard)<br>GCST
+
|Anthony Wong (BU)<br>Jeff Geddes (BU)
 
|Science
 
|Science
 
|
 
|
 
|}
 
 
== 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"
|Implement H2 chemistry in UCX
+
|[http://globalchange.bnu.edu.cn/research/laiv6 Updated Yuan/BNU MODIS LAI product (2000-2019)]
|Chris Holmes (FSU)
+
|Jenny Fisher (U. Wollongong)
 
|Science
 
|Science
 
|
 
|
 +
*Processing scripts delivered to GCST (Aug 2020)
  
 
|-valign="top"
 
|-valign="top"
|Joint CO, CO2, CH4 simulation
+
|[https://gmd.copernicus.org/articles/13/2569/2020/ MEGAN3]
|Beata Bukosa (Wollongong)
+
|Sam Silva (MIT)
|Science
+
|
+
*Delivered to GCST (Jun 2019)
+
 
+
|-
+
!colspan="4" bgcolor="#CCFFFF"|Emissions and surface fluxes updates
+
 
+
|-valign="top
+
|Updated Streets Hg emissions
+
|Colin Thackray (Harvard)
+
|Science
+
|
+
 
+
|-valign="top
+
|Updated EDGAR 4.3 Hg emissions
+
|Amanda Giang (UBC)
+
 
|Science
 
|Science
 
|
 
|
 +
*Implementation details may be found at https://zenodo.org/record/3614062#.XzvrH5NKjOR
  
 
|-valign="top"
 
|-valign="top"
|Offline CLM Harmonization
+
|[https://github.com/geoschem/geos-chem/issues/425 GC-YIBs biosphere-atmospheric chemistry coupled model]
|Anthony Wong (BU)<br>Jeff Geddes (BU)
+
|Xu Yue (NUIST)
 
|Science
 
|Science
|
+
|''Updated Aug 2020''
 
+
|-valign="top"
+
|[https://www.geosci-model-dev.net/11/2009/2018/ CH4 soil absorption from MeMo model]
+
|Melissa Sulprizio (Harvard)
+
|Science
+
|
+
 
+
|-
+
!colspan="4" bgcolor="#CCFFFF"|Aerosol updates
+
 
+
|-valign="top"
+
|Arctic marine SOA
+
|Betty Croft (Dalhousie)
+
|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) ===
Line 204: 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''
  
 
|-valign="top"
 
|-valign="top"
|Examine differences in the lightning NOx schemes in GEOS-Chem and GMI
+
|Diagnostic to archive XCO2, XCO, and XCH4
|Christoph Keller (NASA/GMAO)<br>Lee Murray (Rochester)
+
|Dylan Jones (Toronto)
 
|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 246: 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"
|Latitudinally and monthly resolved fixed surface concentrations for GGs back to 1850
+
|One-Way Coupling w/ GISS ModelE3
|Tomás Sherwen (York)<br>Lee Murray (Rochester)
+
|Lee Murray (Rochester)
|Science
+
|Structural
|
+
|''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
|
+
|''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
|
+
|''Updated Aug 2020''
 +
*Work is finished and a manuscript is in preparation.
  
 
|-valign="top"
 
|-valign="top"
|One-Way Coupling w/ GISS ModelE3
+
|Read-in of native GEOS output in GCHP
|Lee Murray (Rochester)<br>Eric Leibensperger (SUNY Plattsburgh)
+
|WUStL GCST
|Structural
+
|Science
|
+
|''Added Sep 2020''
  
 
|-valign="top"
 
|-valign="top"
|Online Coupling w/ GEOS CCM
+
|Adoption of the Spack package manager for dependency management
|Lizzie Lundgren (Harvard)<br>Lu Hu (U. MT)<br>Christoph Keller (NASA/GMAO)
+
|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 312: 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
+
|
+
 
+
|-valign="top"
+
|Halogen chemistry update
+
|Tomas Sherwen (York)<br>Xuan Wang (Harvard)<br>Shuting Zhai (UW)
+
 
|Science
 
|Science
 
|
 
|
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|-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 426: 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 443: 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 449: 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 479: Line 329:
 
|Yanxu Zhang (Nanjing)
 
|Yanxu Zhang (Nanjing)
 
|Science
 
|Science
|
+
|''Updated Aug 2020''
  
 
|-valign="top"
 
|-valign="top"
Line 485: 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 524: 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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