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

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On this page we list the priorities for ongoing GEOS-Chem model development.  We also list the items that were once identified as priorities but have since been added to the standard mainline GEOS-Chem code.
+
'''''[[Main_Page|GEOS-Chem Main Page]] | [[GCHP_Main_Page|GCHP Main Page]]'''''
  
== List of priorities as of Oct 2011 ==
+
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 [http://acmg.seas.harvard.edu/geos/geos_working_groups.html Working Groups] and the [http://acmg.seas.harvard.edu/geos/geos_steering_cmte.html Steering Committee]. For history of past releases see the [[GEOS-Chem_versions|GEOS-Chem Versions wiki page]].
  
This is list of planned GEOS-Chem model development items updated from the [[GEOS-Chem model development priorities#List of priorities identified at IGC5|List of priorities identified at IGC5]]. The key model developer or model contact is identified for each item.
+
== Release schedule ==
  
We count on user input to augment and prioritize this list, please contact your [http://acmg.seas.harvard.edu/geos/geos_working_groups.html Working Group Chair] or model scientist [mailto:djacob@fas.harvard.edu Daniel Jacob].
+
Please see the [http://wiki.seas.harvard.edu/geos-chem/images/e/e1/GEOS-Chem_Release_Proposal.pdf GEOS-Chem Release Proposal] outlining the procedure and schedule for releasing GEOS-Chem versions.  
  
=== Awaiting release ===
+
== Merged and awaiting release ==
  
{| border=1 cellspacing=0 cellpadding=5
+
See the links below for items merged and awaiting release.
|- bgcolor="#cccccc"
+
!width="400px"|Item
+
!Author(s)
+
!Status
+
|-
+
|[[APM aerosol microphysics]]
+
|Fangqun Yu (SUNY Albany)
+
|Added to [[GEOS-Chem v9-01-02|v9-01-02]]
+
|-
+
|[[Biomass_burning_emissions#GFED3|GFED3 biomass burning]]
+
|Prasad Kasibhatla (Duke)
+
|Added to v9-01-02
+
|-
+
|[[Dry_deposition#Aerosol_dry_deposition_velocities_over_snow_and_ice_surfaces|Aerosol deposition over snow/ice]]
+
|Jenny Fisher (Harvard)
+
|Added to v9-01-02
+
|-
+
|[[Anthropogenic_emissions#Streets_2000|Seasonal variation of Asian NH3 emissions]]
+
|Jenny Fisher (Harvard)
+
|Added to v9-01-02
+
|-
+
|[[GEOS-Chem_v9-01-02#Aerosol_optical_depth|Cleanup of AOD diagnostics]]
+
|Sungshik Patrick Kim (Harvard)
+
|Added to v9-01-02
+
|-
+
|[[Implementation_of_RETRO_Anthropogenic_Emissions|RETRO anthropogenic VOC emissions]]
+
|Dylan Millet (U. Minnesota)
+
|Added to v9-01-02
+
|-
+
|[[Carbon Gases and Organics Working Group#GEIA anthropogenic scaling factors|GEIA emissions scale factor fix]]
+
|Dylan Millet (U. Minnesota)
+
|Added to v9-01-02
+
|-
+
|Chemical updates for atmospheric Hg
+
|Bess Corbitt (Harvard)<br>Jenny Fisher (Harvard)
+
|Added to v9-01-02
+
|-
+
|[[Mercury#Anthropogenic_Emissions|GEIA 2005 Hg emissions]]
+
|Bess Corbitt (Harvard)
+
|Posted in shared data directory
+
|-
+
|Documentation of chemical mechanism
+
|Jingqiu Mao (NOAA/GFDL)
+
|Now available. Please see [[Updating_standard_chemistry_with_JPL_10-6#current_standard_chemistry|this wiki page]].
+
|-
+
|}
+
  
--[[User:Melissa Payer|Melissa Payer]] 15:17, 6 October 2011 (EDT)
+
{| border=1 cellspacing=0 cellpadding=5
 +
|-bgcolor="#CCCCCC"
 +
!width="200px"|Patch version in development
 +
!width="200px"|Minor version in development
  
=== Ready to go in ===
+
|-valign="top"
 +
|align="center"| -
 +
|align="center"|'''[[GEOS-Chem 13.4.0]]'''
  
{| border=1 cellspacing=0 cellpadding=5
 
|- bgcolor="#cccccc"
 
!width="400px"|Item
 
!Author(s)
 
!Status
 
|-
 
|Nested-grid Hg simulation
 
|Lyatt Jaegl&eacute; (U. Washington)
 
|Code is ready
 
|-
 
|Nested-grid CO2 simulation
 
|Yuxuan Wang (Tsinghua U.)
 
|Code delivered to [[GEOS-Chem Support Team|GCST]]; awaiting implementation
 
|-
 
|[[Stratospheric_chemistry|Stratospheric P and k (monthly climatological)]]
 
|Lee Murray (Harvard)
 
|Code is ready
 
|-
 
|[[Updating_standard_chemistry_with_JPL_10-6|Inorganic chemistry updates]]
 
|Mat Evans (Leeds)
 
|Code delivered to GCST; awaiting implementation
 
|-
 
|[[Secondary_organic_aerosols#SOA_simulation_with_semi-volatile_POA|Expanded SOA]]
 
|Havala Pye (EPA/ORD)
 
|Code delivered to GCST; awaiting implementation
 
|-
 
|Dust submicron size distribution for optics
 
|David Ridley (Colo. State)
 
|Code delivered to GCST, awaiting implementation
 
|-
 
|Improved sea salt [[Sea salt aerosols#SST dependent sea salt emissions|emission]] & [[Sea salt aerosols#Updates to sea salt dry deposition|deposition]]
 
|Lyatt Jaegl&eacute; (U. Washington)
 
|Code delivered to GCST, awaiting implementation
 
|-
 
|Improved [[Wet_deposition#Add_scavenging_by_snow|snow scavenging]] and [[Wet_deposition#Allow_both_washout_and_rainout_when_precipitation_forms|washout parameterization]]
 
|Qiaoqiao Wang (Harvard)
 
|Code delivered to GCST, awaiting implementation
 
|-
 
|[[Soil_NOx_emissions#Updated_soil_NOx_emissions_algorithm|New soil NOx emission module]]
 
|Rynda Hudman (UC Berkeley)
 
|Code delivered to GCST, awaiting implementation
 
|-
 
|[[EPA/NEI05_North_American_emissions|EPA/NEI2005 Hg emissions for US]]
 
|Lyatt Jaegl&eacute; (U. Washington)
 
|Code is ready
 
|-
 
|[[Acetone|Improved acetone simulation]]
 
|Emily Fischer (Harvard)
 
|Code delivered to GCST, awaiting implementation
 
|-
 
|Complete shift of biogenic VOC emissions from GEIA to MEGAN; retire GEIA
 
|Dylan Millet (U. Minnesota)
 
|Delivered to GCST, will be done concurrently w/ the improved acetone simulation
 
|-
 
|OVOC's dry deposition
 
|Jingqiu Mao (NOAA/GFDL)
 
|Code is ready
 
|-
 
|[[Sources_and_Sinks_Working_Group#Available_Historical_and_Future_Emissions|Historical emission inventories of SO2, NOx, BC, and POA]]
 
|Eric Leibensperger (MIT)
 
|Code delivered to GCST, awaiting implementation
 
|-
 
|Methyl peroxy nitrate (MPN) chemistry
 
|Ellie Browne (UC Berkeley)
 
|Code delivered to GCST, awaiting implementation
 
|-
 
|[[Mineral_dust_aerosols#Surface_chemistry_on_dust|Acid uptake on dust aerosols]]
 
|T. Duncan Fairlie (NASA/LARC)
 
|Code delivered to GCST, awaiting implementation
 
|-
 
 
|}
 
|}
  
--[[User:Melissa Payer|Melissa Payer]] 15:17, 6 October 2011 (EDT)
+
== Feature integration in progress ==
  
=== Almost there (< 6 months) ===
+
Features listed in this table are actively being integrated into GEOS-Chem by the [[GEOS-Chem Support Team]]. In addition, we continuously implement structural updates in the model to maintain and develop coupling with other models including GEOS, CESM, and the model adjoint.
  
{| border=1 cellspacing=0 cellpadding=5
+
{| border=1 cellspacing=0 cellpadding=5  
|- bgcolor="#cccccc"
+
|-bgcolor="#CCCCCC"
!width="400px"|Item
+
!width="200px"|Feature
!Author(s)
+
!width="200px"|Contributor(s)
!Status
+
!width="100px"|Model scope
|-
+
!width="100px"|Ease of implementation
|[[Aircraft_emissions#FAA_aircraft_emissions_inventory|FAA/AEDT aircraft emissions inventory]]
+
!width="300px"|Notes and References
|Steven Barrett et al (MIT)
+
 
|Code delivered to GCST, on hold
+
|-valign="top"
|-
+
|[https://doi.org/10.5194/acp-2021-911 Updated Global Inventory of Methane Emissions from Oil/Gas/Coal (GFEI v2)]
|Longwave & shortwave RF codes for chemistry-climate
+
|Tia Scarpelli (U. Edinburgh)
|Fangqun Yu (SUNY Albany)
+
|Emissions
 +
|Easy
 
|
 
|
|-
+
*[https://github.com/geoschem/geos-chem/issues/1043 geoschem/geos-chem #1043]
|[[APM aerosol microphysics|APM]] capability for nested grid
+
*Reference: Scarpelli et al [2021],<br>DOI: [https://doi.org/10.5194/acp-2021-911 10.5194/acp-2021-911]
|Fangqun Yu (SUNY Albany)
+
 
|
+
|-valign="top"
|-
+
|Anthropogenic Methane Emission Inventory for Canada
|[[TOMAS aerosol microphysics|TOMAS]] capability for nested grid
+
|Tia Scarpelli (U. Edinburgh)
|Jeff Pierce (Dalhousie)
+
|Emissions
|
+
|Easy
|-
+
|Streets future Hg emissions
+
|Bess Corbitt (Harvard)
+
|Code is ready, pending paper acceptance
+
|-
+
|Hg(II) gas-aerosol partitioning
+
|Helen Amos (Harvard)
+
|
+
|-
+
|Update to EDGAR 4 anthropogenic emissions
+
|Qiang Zhang (Tsinghua)
+
|
+
|-
+
|Satellite-based NOx emission trends
+
|Lok Lamsal (NASA GSFC)
+
|Emission trends database is ready; Needs to be implemented into GEOS-Chem
+
|-
+
|PARANOX ship plume emissions
+
|Geert Vinken (Eindhoven)
+
|Code is ready, pending paper acceptance
+
|-
+
|Interannual lightning
+
|Lee Murray (Harvard)
+
 
|
 
|
|-
+
*[https://github.com/geoschem/geos-chem/issues/1072 geoschem/geos-chem #1072]
|Primary marine OA emissions
+
*Reference: Scarpelli, T.R., D.J. Jacob, M. Moran, F. Reuland, and D. Gordon, [https://acmg.seas.harvard.edu/files/acmg/files/scarpelli2021_canada.pdf A gridded inventory of Canada's anthropogenic methane emissions], submitted to Environ. Res. Lett., 2021.
|Kateryna Lapina (CSU)
+
|
+
|-
+
|Implement GISS advection scheme for GISS-driven applications
+
|[[GEOS-Chem Support Team]]
+
|
+
|-
+
|[[Bromine chemistry mechanism|Tropospheric bromine chemistry]]
+
|Justin Parrella (Harvard)
+
|
+
|-
+
|Updated [[Dicarbonyls simulation|dicarbonyl simulation]]
+
|May Fu (Peking U.)
+
|
+
|-
+
|Satellite diagnostic for XCO2
+
|Liang Feng (U. Edinburgh)
+
|
+
|-
+
|Cloudwater pH for sulfate formation
+
|Becky Alexander (U. Washington)
+
|Code is ready, pending paper acceptance
+
|-
+
|Tagged sulfate and nitrate simulation
+
|Becky Alexander (U. Washington)
+
|
+
|-
+
|}
+
  
--[[User:Melissa Payer|Melissa Payer]] 15:17, 6 October 2011 (EDT)
+
|-valign="top"
 +
|[https://edgar.jrc.ec.europa.eu/dataset_ghg60 Use EDGARv6 global anthro emissions for CH4 simulation]
 +
|Melissa Sulprizio (GCST)
 +
|Emissions
 +
|Medium
 +
|
 +
*[https://github.com/geoschem/geos-chem/issues/1044 geoschem/geos-chem #1044]
 +
*[https://edgar.jrc.ec.europa.eu/dataset_ghg60 Link to EDGAR data]
  
=== Over the horizon (6-12 months) ===
+
|-valign="top"
 +
|[https://github.com/geoschem/geos-chem/issues/331 Provide climatologies for open fire emissions]
 +
|Melissa Sulprizio (GCST)
 +
|Emissions
 +
|Easy
 +
|
  
{| border=1 cellspacing=0 cellpadding=5
+
|-valign="top"
|- bgcolor="#cccccc"
+
|[https://github.com/geoschem/geos-chem/issues/655 Climatologies for lightning NOx], [https://github.com/geoschem/geos-chem/issues/331 biomass burning], and [https://github.com/geoschem/geos-chem/issues/656 volcanoes]
!width="400px"|Item
+
|Lee Murray (Rochester)<br>Melissa Sulprizio (GCST)
!Author(s)
+
|Emissions
!Status
+
|Easy
|-
+
|Update HCN simulation
+
|Qian Li (U. Edinburgh)<br>Dylan Jones (U. Toronto)
+
|
+
|-
+
|Working with [[GEOS-5.7.2|GEOS-5.7.2]]
+
|[[GEOS-Chem Support Team]]
+
|Development is ongoing
+
|-
+
|Nested-grid model at 0.25&deg; x 0.3125&deg; resolution
+
|Yuxuan Wang (Tsinghua)
+
|
+
|-
+
|High-resolution emissions for above nested-grid model
+
|Yuxuan Wang (Tsinghua)
+
|
+
|-
+
|Improved planeflight diagnostic
+
|Mat Evans (Leeds)
+
|
+
|-
+
|Chemistry diagnostics
+
|Mat Evans (Leeds)
+
|
+
|-
+
|Improved operator splitting
+
|Mauricio Santillana (Harvard)
+
|Development is ongoing
+
|-
+
|3-D VOC source for [[Tagged_CO_simulation|tagged CO simulations]]
+
|Dylan Jones (U. Toronto)
+
|
+
|-
+
|Move to 2&deg; x 2.5&deg; versions of GISS GCM ModelE and Model3
+
|Loretta Mickley (Harvard)
+
|For more information, please see the [http://acmg.seas.harvard.edu/geos/word_pdf_docs/steering_cmte/stercomm.telecon.ltmurray.GISS.pdf GISS Model E Memo]<br>by (Lee Murray and Loretta Mickley).
+
|-
+
|Implement IPCC AR5 scenarios
+
|Loretta Mickley (Harvard)
+
 
|
 
|
|-
+
 
|Improved dust simulation in nested-grid model
+
|-valign="top"
|Rokjin Park (Seoul Nat'l Univ.)
+
|[https://github.com/geoschem/geos-chem/pull/990 Change State_Chm%Species from 4D to vector of 3D arrays]
 +
|Lizzie Lundgren (GCST)
 +
|Structural
 +
|Medium
 
|
 
|
|-
+
*Ongoing
|Isoprene chemistry
+
|Mat Evans (Leeds)<br>Jingqiu Mao (NOAA/GFDL)
+
|Paper is in progress
+
|-
+
|Unified emissions pre-processor
+
|Qiang Zhang (Tsinghua)
+
|
+
|-
+
|Update Asian emissions
+
|Qiang Zhang (Tsinghua)
+
|
+
|-
+
|CESM/CAM5 interface for chemistry-climate
+
|Rokjin Park (Seoul Nat'l Univ.)<br>Joshua Fu (U. Tennessee)
+
|
+
|-
+
|}
+
  
--[[User:Melissa Payer|Melissa Payer]] 15:17, 6 October 2011 (EDT)
+
|-valign="top"
 +
|Upgrade Fast-JX to Cloud-J
 +
|Lizzie Lundgren (GCST)
 +
|Structural
 +
|Difficult
 +
|
 +
* [https://github.com/geoschem/cloud-j geoschem/cloud-j]
 +
*Ongoing
  
=== Longer term (> 12 months)===
+
|-valign="top"
 +
|Add capability to use mass fluxes in advection
 +
|Sebastian Eastham (MIT) <br> Liam Bindle (GCST)
 +
|Transport
 +
|Easy
 +
|
 +
*[https://github.com/geoschem/GCHP/pull/172 geoschem/GCHP PR #172]
 +
*GCHP only
  
{| border=1 cellspacing=0 cellpadding=5
+
|-valign="top"
|- bgcolor="#cccccc"
+
|Add diagnostic for vertical air movement (vertical mass flux)
!width="400px"|Item
+
|Liam Bindle (GCST)
!Author(s)
+
|Transport
!Status
+
|Easy
|-
+
|
|[[Grid-independent GEOS-Chem]]
+
*[https://github.com/geoschem/GCHP/pull/172 geoschem/GCHP PR #172]
|[[GEOS-Chem Support Team]]
+
*GCHP only
|Development is ongoing
+
 
|-
+
|-valign="top"
|Improved atmospheric-ocean-land coupling of Hg simulation
+
|Add capability to read native meteorological data files
|[[Hg and POPs Working Group]]
+
|Liam Bindle (GCST) <br> Bob Yantosca (GCST)
|
+
|Structural
|-
+
|Medium
|Primary biological aerosol particles (PBAP's)
+
|
|Colette Heald (Colo. State)
+
*[https://github.com/geoschem/GCHP/issues/165 geoschem/GCHP PR #165]
|Only to be implemented if users identified
+
*GCHP only (minor changes to HEMCO, GC-Classic)
|-
+
|Unified radiative forcing module for GEOS-Chem
+
|[[Aerosols_overview:_projects_and_developments|Aerosols Working Group]]
+
|Under discussion/investigation
+
|-
+
|Effective meteorolgical fields for dust and sea-salt emissions
+
|[[GEOS-Chem Support Team]]
+
|
+
|-
+
|Dust simulation expansion; tagged simulation, oxalate, Fe, P
+
|Matthew Johnson (NCSU)
+
|
+
|-
+
|Benchmark for aerosol deposition
+
|Colette Heald (Colo. State)
+
|TBD
+
|-
+
|Read emission data at native resolution and regrid on the fly
+
|[[GEOS-Chem Support Team]]
+
|
+
|-
+
|Improve ocean CO2 flux and resolution of anthropogenic sources
+
|Ray Nassar (Environment Canada)
+
|  
+
|-
+
|Link column version of GEOS-Chem with GEOS-GCM for chemistry-climate
+
|[[GEOS-Chem Support Team]]
+
|
+
|-
+
|CO2 inhibition effect for isoprene emission
+
|Loretta Mickley (Harvard)
+
|
+
|-
+
|Replace CASA CO2 biosphere climatology with year-specific fluxes
+
|Ray Nassar (Environment Canada)<br>Dylan Jones (U. Toronto)
+
|TBD
+
|-
+
 
|}
 
|}
  
--[[User:Melissa Payer|Melissa Payer]] 15:17, 6 October 2011 (EDT)
+
== Feature integration in the queue ==
  
=== Items no longer being worked on===
+
Features listed in this table have been delivered to the GEOS-Chem Support Team and are prioritized to be integrated into GEOS-Chem in the near future.
  
{| border=1 cellspacing=0 cellpadding=5
+
{| border=1 cellspacing=0 cellpadding=5  
|- bgcolor="#cccccc"
+
|-bgcolor="#CCCCCC"
!width="400px"|Item
+
!width="200px"|Feature
!Author(s)
+
!width="200px"|Contributor(s)
!Status
+
!width="100px"|Model scope
|-
+
!width="100px"|Ease of implementation
|Fix of global OH diagnostic
+
!width="300px"|Notes and References
|Mat Evans (Leeds)<br>Jingqiu Mao (NOAA/GFDL)
+
|This is no longer an issue after the [[Restart_files#Potential_issue_with_reading_restart.cspec_file|CSPEC restart bug fix]] in v9-01-02 (awaiting release).
+
|-
+
|Updated diurnal variation of US NEI emissions
+
|Rynda Hudman (UC Berkeley)
+
|
+
|-
+
|}
+
  
--[[User:Melissa Payer|Melissa Payer]] 15:17, 6 October 2011 (EDT)
+
|-valign="top"
 +
|[https://gmd.copernicus.org/articles/13/2475/2020/gmd-13-2475-2020.pdf Adaptive chemical solver] (as option)
 +
|Mike Long (Harvard) <br> Haipeng Lin (Harvard)
 +
|Chemistry
 +
|Difficult
 +
|
 +
*In testing, publication expected in mid-to-late 2022
  
== List of priorities identified at IGC5 ==
+
|-valign="top"
 +
|[https://gmd.copernicus.org/articles/13/2569/2020/ MEGAN3]
 +
|Sam Silva (MIT)
 +
|Emissions
 +
|Medium
 +
|
 +
*DOI: [https://zenodo.org/record/3614062#.XzvrH5NKjOR 10.5281/zenodo.3614062]
 +
*Sam Silva and GCST will work on updating this to a more recent GEOS-Chem version in the near future
  
This is a list of planned GEOS-Chem model development items, based on discussions and Working Group reports from the  and [http://acmg.seas.harvard.edu/geos/geos_meeting_2011.html 5th International GEOS-Chem Meeting] (aka '''IGC5'''). The key model developer or model contact is identified for each item.
+
|-valign="top"
 +
|[https://gmd.copernicus.org/articles/13/2569/2020/ Canopy Physics Model]
 +
|Sam Silva (MIT)
 +
|Emissions &<br>Science
 +
|Medium
 +
|
 +
*DOI: [https://zenodo.org/record/3614062#.XzvrH5NKjOR 10.5281/zenodo.3614062]
 +
*Sam Silva and GCST will work on updating this to a more recent GEOS-Chem version in the near future
  
We count on user input to augment and prioritize this list, please contact your [http://acmg.seas.harvard.edu/geos/geos_working_groups.html Working Group Chair] or model scientist [mailto:djacob@fas.harvard.edu Daniel Jacob].
+
|-valign="top"
 +
|[https://acp.copernicus.org/articles/19/7055/2019/ Joint CO2-CO-CH4-OCS simulation]
 +
|Beata Bukosa (NIWA)<br>Kevin Bowman (JPL)
 +
|Specialty simulation
 +
|Medium
 +
|
 +
* [https://github.com/geoschem/geos-chem/issues/654 geoschem/geos-chem #654]
 +
*Ideally implemented as a chemical mechanism in KPP
  
=== For immediate implementation (awaiting release) ===
 
  
{| border=1 cellspacing=0 cellpadding=5
+
 
|- bgcolor="#cccccc"
+
|-valign="top"
!width="400px"|Item
+
|[https://github.com/geoschem/geos-chem/issues/770 Output satellite diagnostics as NetCDF]
!Author(s)
+
|Eloise Marais (UCL)  
!Status
+
|Diagnostics
|-
+
|Easy
|[[APM aerosol microphysics]]
+
|
|Fangqun Yu (SUNY Albany)
+
 
|Added to [[GEOS-Chem v9-01-02|v9-01-02]]; awaiting release
+
|-
+
|[[Biomass_burning_emissions#GFED3|GFED3 biomass burning]]
+
|Prasad Kasibhatla (Duke)
+
|Added to v9-01-02; awaiting release
+
|-
+
|[[Aircraft_emissions#FAA_aircraft_emissions_inventory|FAA/AEDT aircraft emissions inventory]]
+
|Steven Barrett et al (MIT)
+
|
+
|-
+
|[[Dry_deposition#Aerosol_dry_deposition_velocities_over_snow_and_ice_surfaces|Aerosol deposition over snow/ice]]
+
|Jenny Fisher (Harvard)
+
|Added to v9-01-02; awaiting release
+
|-
+
|[[Anthropogenic_emissions#Streets_2000|Seasonal variation of Asian NH3 emissions]]
+
|Jenny Fisher (Harvard)
+
|Added to v9-01-02; awaiting release
+
|-
+
|[[GEOS-Chem_v9-01-02#Aerosol_optical_depth|Cleanup of AOD diagnostics]]
+
|Sungshik Patrick Kim (Harvard)
+
|Added to v9-01-02; awaiting release
+
|-
+
|[[Implementation_of_RETRO_Anthropogenic_Emissions|RETRO anthropogenic VOC emissions]]
+
|Dylan Millet (U. Minnesota)
+
|Added to v9-01-02; awaiting release
+
|-
+
 
|}
 
|}
  
--[[User:Bmy|Bob Y.]] 15:56, 23 August 2011 (EDT)
+
== Feature integration not yet prioritized ==
  
=== Ready to go in ===
+
Features listed in this table have been delivered to the GEOS-Chem Support Team but are not yet prioritized for integrating into the model.
  
{| border=1 cellspacing=0 cellpadding=5
+
{| border=1 cellspacing=0 cellpadding=5  
|- bgcolor="#cccccc"
+
|-bgcolor="#CCCCCC"
!width="400px"|Item
+
!width="200px"|Feature
!Author(s)
+
!width="200px"|Contributor(s)
!Status
+
!width="100px"|Model scope
|-
+
!width="100px"|Ease of implementation
|Nested-grid Hg simulation
+
!width="300px"|Notes and References
|Lyatt Jaegl&eacute; (U. Washington)
+
|
+
|-
+
|Nested-grid CO2 simulation
+
|Yuxuan Wang (Tsinghua U.)
+
|
+
|-
+
|Stratospheric P and k (monthly climatological)
+
|Lee Murray (Harvard)
+
|
+
|-
+
|Inorganic chemistry updates
+
|Mat Evans (Leeds)
+
|
+
|-
+
|GEIA 2005 Hg emissions
+
|Bess Corbitt (Harvard)
+
|Delivered to GCST
+
|-
+
|[[Secondary_organic_aerosols#SOA_simulation_with_semi-volatile_POA|Expanded SOA]]
+
|Havala Pye (EPA/ORD)
+
|Delivered to [[GEOS-Chem Support Team|GCST]], undergoing final testing
+
|-
+
|Dust submicron size distribution for optics
+
|David Ridley (Colo. State)
+
|
+
|-
+
|[[Carbon Gases and Organics Working Group#GEIA anthropogenic scaling factors|GEIA emissions scale factor fix]]
+
|Dylan Millet (U. Minnesota)
+
|Added to [[GEOS-Chem v9-01-02|v9-01-02]]; awaiting release
+
|-
+
|Longwave & shortwave RF codes for chemistry-climate
+
|Fangqun Yu (SUNY Albany)
+
|
+
|-
+
|Improved sea salt [[Sea salt aerosols#SST dependent sea salt emissions|emission]] & [[Sea salt aerosols#Updates to sea salt dry deposition|deposition]]
+
|Lyatt Jaegl&eacute; (U. Washington)
+
|Code delivered to [[GEOS-Chem Support Team|GCST]], awaiting implementation
+
|-
+
|Improved snow scavenging and washout parameterization
+
|Qiaoqiao Wang (Harvard)
+
|
+
|-
+
|}
+
  
--[[User:Bmy|Bob Y.]] 11:04, 30 August 2011 (EDT)
+
|-valign="top"
 +
|[https://github.com/geoschem/geos-chem/issues/1094 Stratospheric adjustment with RRTMG in GEOS-Chem]
 +
|Seb Eastham (MIT)
 +
|Science
 +
|Medium
 +
|
 +
*[https://github.com/geoschem/geos-chem/issues/1094 geoschem/geos-chem #1094]
  
=== Almost there (< 6 months) ===
+
|-valign="top"
 +
|[https://agupubs.onlinelibrary.wiley.com/doi/epdf/10.1029/2006GL026015 Stratospheric HCN chemistry]
 +
|Armin Kleinbohl (JPL)<br>Debra Weisenstein (Harvard, retired)
 +
|Chemistry
 +
|Medium
 +
|
 +
*Delivered to GCST (Jun 2020)
 +
 
 +
|-valign="top"
 +
|[https://gmd.copernicus.org/articles/13/1137/2020/ GC-YIBs biosphere-atmospheric chemistry coupled model]
 +
|Xu Yue (NUIST)
 +
|Science
 +
|Easy
 +
|
 +
* [https://github.com/geoschem/geos-chem/issues/425 geoschem/geos-chem #425]
 +
 
 +
|-valign="top"
 +
|[https://github.com/geoschem/geos-chem/pull/629 Ecophysiology module in GEOS-Chem for biosphere-atmosphere exchange]
 +
|Joey Lam(CUHK)<br>Amos Tai (CUHK)
 +
|Science
 +
|Easy
 +
|
 +
*Delivered to GCST (Feb 2021)
 +
* [https://github.com/geoschem/geos-chem/pull/629 geoschem/geos-chem #629]
 +
 
 +
|-valign="top"
 +
|[[Stratospheric_chemistry#Treatment_of_the_mesosphere_in_UCX_simulations|Extend UCX into the mesosphere]]
 +
|Sebastian Eastham (MIT)<br>Eric Fleming (NASA GMAO)
 +
|Chemistry
 +
|Easy
 +
|
 +
 
 +
|-valign="top"
 +
|Landcover/Fire Emissions Offline LPJlmfire
 +
|Loretta Mickley (Harvard)<br>Yang Li (Harvard)
 +
|Emissions
 +
|Easy
 +
|
 +
*Data files delivered to GCST (July 2021)
  
{| border=1 cellspacing=0 cellpadding=5
 
|- bgcolor="#cccccc"
 
!width="400px"|Item
 
!Author(s)
 
!Status
 
|-
 
|[[Soil_NOx_emissions#Updated_soil_NOx_emissions_algorithm|New soil NOx emission module]]
 
|Rynda Hudman (UC Berkeley)
 
|Code delivered to [[GEOS-Chem Support Team|GCST]], awaiting implementation
 
|-
 
|[[APM aerosol microphysics|APM]] capability for nested grid
 
|Fangqun Yu (SUNY Albany)
 
|
 
|-
 
|[[TOMAS aerosol microphysics|TOMAS]] capability for nested grid
 
|Jeff Pierce (Dalhousie)
 
|
 
|-
 
|Fix of global OH diagnostic
 
|Mat Evans (Leeds)<br>Jingqiu Mao (NOAA/GFDL)
 
|
 
|-
 
|Chemical updates for atmospheric Hg
 
|Bess Corbitt (Harvard)<br>Jenny Fisher (Harvard)
 
|
 
|-
 
|Streets future Hg emissions
 
|Bess Corbitt (Harvard)
 
|
 
|-
 
|[[EPA/NEI05_North_American_emissions|EPA/NEI2005 Hg emissions for US]]
 
|Lyatt Jaegl&eacute; (U. Washington)
 
|
 
|-
 
|Hg(II) gas-aerosol partitioning
 
|Helen Amos (Harvard)
 
|
 
|-
 
|Update to EDGAR 4 anthropogenic emissions
 
|Qiang Zhang (Tsinghua)
 
|
 
|-
 
|Updated diurnal variation of US NEI emissions
 
|Rynda Hudman (UC Berkeley)
 
|
 
|-
 
|Satellite-based NOx emission trends
 
|Lok Lamsal (NASA GSFC)
 
|
 
|-
 
|PARANOX ship plume emissions
 
|Geert Vinken (Eindhoven)
 
|
 
|-
 
|Interannual lightning
 
|Lee Murray (Harvard)
 
|
 
|-
 
|Primary marine OA emissions
 
|Kateryna Lapina (CSU)
 
|
 
|-
 
|Complete shift of biogenic VOC emissions from GEIA to MEGAN; retire GEIA
 
|Dylan Millet (U. Minnesota)
 
|Slated for [[GEOS-Chem v9-01-03|v9-01-03]]
 
|-
 
|Update HCN simulation
 
|Qian Li (U. Edinburgh)<br>Dylan Jones (U. Toronto)
 
|
 
|-
 
|Implement GISS advection scheme for GISS-driven applications
 
|[[GEOS-Chem Support Team]]
 
|
 
|-
 
 
|}
 
|}
  
--[[User:Bmy|Bob Y.]] 11:10, 6 June 2011 (EDT)
+
== Almost there (< 6 months) ==
  
=== Over the horizon (6-12 months) ===
+
Features listed in this table are in development and will likely be delivered to the GEOS-Chem Support Team within the next 6 months.
  
{| border=1 cellspacing=0 cellpadding=5
+
{|border=1 cellspacing=0 cellpadding=5
 
|- bgcolor="#cccccc"
 
|- bgcolor="#cccccc"
!width="400px"|Item
+
!width="200px"|Feature
!Author(s)
+
!width="200px"|Contributor(s)
!Status
+
!width="100px"|Model scope
|-
+
!width="420px"|Notes and References
|Working with [[GEOS-5.7.2|GEOS-5.7.2]]
+
 
|[[GEOS-Chem Support Team]]
+
|-valign="top"
|Ongoing
+
|[https://github.com/geoschem/geos-chem/issues/559 Implement H2 chemistry in UCX]
|-
+
|Chris Holmes (FSU)
|Nested-grid model at 0.25&deg; x 0.3125&deg; resolution
+
|Chemistry
|Yuxuan Wang (Tsinghua)
+
|
+
|-
+
|High-resolution emissions for above nested-grid model
+
|Yuxuan Wang (Tsinghua)
+
|
+
|-
+
|[[Acetone|Improved acetone simulation]]
+
|Emily Fischer (Harvard)
+
|Slated for inclusion in [[GEOS-Chem v9-01-03|v9-01-03]]
+
|-
+
|[[Bromine chemistry mechanism|Tropospheric bromine chemistry]]
+
|Justin Parrella (Harvard)
+
|
+
|-
+
|OVOC's dry deposition
+
|Jingqiu Mao (NOAA/GFDL)
+
|
+
|-
+
|Improved planeflight diagnostic
+
|Mat Evans (Leeds)
+
|
+
|-
+
|Chemistry diagnostics
+
|Mat Evans (Leeds)
+
|
+
|-
+
|Documentation of chemical mechanism
+
|Jingqiu Mao (NOAA/GFDL)
+
|
+
|-
+
|[[DSMACC_chemical_box_model|Box model]] version of GEOS-Chem chemical mechanism
+
|Jingqiu Mao (NOAA/GFDL)
+
|
+
|-
+
|Improved operator splitting
+
|Mauricio Santillana (Harvard)
+
|
+
|-
+
|Updated [[Dicarbonyls simulation|dicarbonyl simulation]]
+
|May Fu (Peking U.)
+
|
+
|-
+
|3-D VOC source for [[Tagged_CO_simulation|tagged CO simulations]]
+
|Dylan Jones (U. Toronto)
+
|
+
|-
+
|Replace CASA CO2 biosphere climatology with year-specific fluxes
+
|Ray Nassar (Environment Canada)<br>Dylan Jones (U. Toronto)
+
|
+
|-
+
|Satellite diagnostic for XCO2
+
|Liang Feng (U. Edinburgh)
+
|
+
|-
+
|Move to 2&deg; x 2.5&deg; versions of GISS GCM ModelE and Model3
+
|Loretta Mickley (Harvard)
+
|For more information, please see the [http://acmg.seas.harvard.edu/geos/word_pdf_docs/steering_cmte/stercomm.telecon.ltmurray.GISS.pdf GISS Model E Memo]<br>by (Lee Murray and Loretta Mickley).
+
|-
+
|Implement IPCC AR5 scenarios
+
|Loretta Mickley (Harvard)
+
 
|
 
|
|-
+
*Identified as a priority for GC 13, but not yet delivered
|CO2 inhibition effect for isoprene emission
+
 
|Loretta Mickley (Harvard)
+
|-valign="top"
|  
+
|[https://iopscience.iop.org/article/10.1088/1748-9326/ac16a3 New soil NOx parameterization]
|-
+
|Yi Wang (U. Iowa)<br>Jun Wang (U. Iowa)
 +
|Emissions
 +
|
 +
 
 +
|-valign="top"
 +
|[[Grid-independent_emissions|Updated offline biogenic emissions]]
 +
|Hongjian Weng (PKU)
 +
|Emissions
 +
|
 +
*Identified as a priority for GC 13, but not yet delivered
 +
 
 +
|-valign="top"
 +
|[[Grid-independent_emissions|Updated offline sea salt emissions]]
 +
|Hongjian Weng (PKU)
 +
|Emissions
 +
|
 +
*Identified as a priority for GC 13, but not yet delivered
 +
 
 +
|-valign="top"
 +
|[[Grid-independent_emissions|Updated offline soil NOx emissions]]
 +
|Hongjian Weng (PKU)
 +
|Emissions
 +
|
 +
*Identified as a priority for GC 13, but not yet delivered
 +
 
 +
|-valign="top"
 +
|Provide recommended rather than hard-coded scaling factors for online emissions
 +
|GCST
 +
|Emissions
 +
|
 +
*Identified as a priority for GC 13, but not yet developed
 +
 
 +
|-valign="top"
 +
|Diagnostic to archive XCO2, XCO, and XCH4
 +
|Dylan Jones (Toronto)
 +
|Diagnostic
 +
|
 +
 
 +
|-valign="top"
 +
|Provide archived TCR-2 GEOS-Chem OH fields for carbon simulations
 +
|Kazu Miyazaki (JPL)
 +
|Input data
 +
|
 +
 
 +
|-valign="top"
 +
|BrC aging
 +
|Xuan Wang (Harvard)<br>Melanie Hammer(Dalhousie)
 +
|Chemistry
 +
|
 +
 
 +
|-valign="top"
 +
|Shared Socioeconomic Pathways Emission Inventories
 +
|Hong Liao (NUIST)
 +
|Emissions
 +
|
 +
 
 +
|-valign="top"
 +
|Rediagnosis of RAS convection in GEOS-Chem
 +
|Tailong He (Toronto)<br>Dylan Jones (Toronto)<br>Andrea Molod (NASA/GMAO)
 +
|Convection
 +
|
 +
*Work is finished and a manuscript is in preparation.
 +
 
 +
|-valign="top"
 +
|Change GCHP advection inputs to use total pressure and mixing ratio rather than dry
 +
|Sebastian Eastham (MIT) <br> Liam Bindle (GCST)
 +
|Transport
 +
|
 +
*Identified as a priority for GC 13, but not yet delivered
 +
*GCHP only
 +
 
 +
|-valign="top"
 +
|HTAPv3 emissions (0.1 deg, 2002-2018)
 +
|Emissions & Deposition WG
 +
|Emissions
 +
|
 +
 
 +
|-valign="top"
 +
|Migrating simple SOA formation from carbon_mod.F90 into the KPP "full-chemistry" mechanism
 +
|GCST
 +
|Chemistry
 +
|
 +
 
 +
|-valign="top"
 +
|Updated parameterization of aerosol size distribution for bulk aerosol simulations
 +
|Haihui Zhu (WashU)<br>Shixian Zhai (Harvard)
 +
|Aerosols
 +
|
 +
 
 
|}
 
|}
  
--[[User:Bmy|Bob Y.]] 11:25, 30 August 2011 (EDT)
+
== Over the horizon (6-12 months) ==
  
=== Longer term (> 12 months)===
+
Features listed in this table are in development and will likely be delivered to the GEOS-Chem Support Team in the 6-12 months timeframe.
  
 
{| border=1 cellspacing=0 cellpadding=5
 
{| border=1 cellspacing=0 cellpadding=5
 
|- bgcolor="#cccccc"
 
|- bgcolor="#cccccc"
!width="400px"|Item
+
!width="200px"|Feature
!Author(s)
+
!width="200px"|Contributor(s)
!Status
+
!width="100px"|Model scope
|-
+
!width="420px"|Notes and References
|[[Grid-independent GEOS-Chem]]
+
 
|[[GEOS-Chem Support Team]]
+
|-valign="top"
|Development is ongoing
+
|Methylethylketone chemistry
|-
+
|Jared Brewer (CSU)
|Improved dust simulation in nested-grid model
+
|Chemistry
|Rokjin Park (Seoul Nat'l Univ.)
+
|
+
|-
+
|Isoprene chemistry
+
|Mat Evans (Leeds)<br>Jingqiu Mao (NOAA/GFDL)
+
|  
+
|-
+
|Improved atmospheric-ocean-land coupling of Hg simulation
+
|[[Hg and POPs Working Group]]
+
|
+
|-
+
|Unified emissions pre-processor
+
|Qiang Zhang (Tsinghua)
+
|
+
|-
+
|Update Asian emissions
+
|Qiang Zhang (Tsinghua)
+
|
+
|-
+
|Primary biological aerosol particles (PBAP's)
+
|Colette Heald (Colo. State)
+
 
|
 
|
|-
+
 
|Unified radiative forcing module for GEOS-Chem
+
|-valign="top"
|[[Aerosols_overview:_projects_and_developments|Aerosols Working Group]]
+
|Add sulfate dependence to SOA yield from isoprene in simple SOA
 +
|Eloise Marais (UCL)
 +
|Chemistry
 
|
 
|
|-
+
 
|Effective meteorolgical fields for dust and sea-salt emissions
+
|-valign="top"
|[[GEOS-Chem Support Team]]
+
|GTMM updates
|  
+
|Ben Geyman (Harvard)
|-
+
|Hg simulation
|Dust simulation expansion; tagged simulation, oxalate, Fe, P
+
|Matthew Johnson (NCSU)
+
|  
+
|-
+
|Cloudwater pH for sulfate formation
+
|Becky Alexander (U. Washington)
+
|
+
|-
+
|Benchmark for aerosol deposition
+
|Colette Heald (Colo. State)
+
 
|
 
|
|-
 
|Tagged sulfate and nitrate simulation
 
|Becky Alexander (U. Washington)
 
|
 
|-
 
|Read emission data at native resolution and regrid on the fly
 
|[[GEOS-Chem Support Team]]
 
|
 
|-
 
|Improve ocean CO2 flux and resolution of anthropogenic sources
 
|Ray Nassar (Environment Canada)
 
|
 
|-
 
|CESM/CAM5 interface for chemistry-climate
 
|Rokjin Park (Seoul Nat'l Univ.)<br>Joshua Fu (U. Tennessee)
 
|
 
|-
 
|Link column version of GEOS-Chem with GEOS-GCM for chemistry-climate
 
|[[GEOS-Chem Support Team]]
 
|
 
|-
 
|}
 
  
--[[User:Bmy|Bob Y.]] 11:33, 6 June 2011 (EDT)
 
  
== Items that are now included in GEOS-Chem ==
+
|-valign="top"
 +
|[https://github.com/geoschem/GCHP/issues/19 Integrating GMAO's tracer gridded component in GCHP]
 +
|Christoph Keller (NASA GMAO)
 +
|Transport Tracer simulation
 +
|
  
Here we list new features that have since been brought into the standard mainline GEOS-Chem code.  Each of these was identified as a priority at the [[http://acmg.seas.harvard.edu/geos/geos_meeting_2011.html 5th International GEOS-Chem Meeting] in 2011 (aka '''IGC5''').
+
|-valign="top"
 +
|Streamlining of specialty simulations through HEMCO and KPP
 +
|GCST
 +
|Chemistry, Specialty simulations
 +
|
 +
 
 +
|}
 +
 
 +
== Longer term (12-24 months)==
  
 +
Features listed in this table are in development and will likely be delivered to the GEOS-Chem Support Team in the 12-24 months timeframe.
 
{| border=1 cellspacing=0 cellpadding=5
 
{| border=1 cellspacing=0 cellpadding=5
 
|- bgcolor="#cccccc"
 
|- bgcolor="#cccccc"
!width="400px"|Item
+
!width="200px"|Feature
!Author(s)
+
!width="200px"|Contributor(s)
!Completion Date
+
!width="100px"|Model scope
|-
+
!width="420px"|Notes and References
|[http://pumpkin.aquila.infn.it/flexaod/ FlexAOD postprocessor]<br>''NOTE: This is a separate standalone [http://acmg.seas.harvard.edu/geos/geos_software_tools.html software tool].''
+
 
|Gabriele Curci (U. L'Aquila)
+
|-valign="top"
|26 May 2011
+
|Implement isotope simulation for CO and CH4 in GCHP
|-
+
|Lee Murray (Rochester)
|[[DSMACC chemical box model]]<br>''NOTE: This is a separate standalone [http://acmg.seas.harvard.edu/geos/geos_software_tools.html software tool].''
+
|Specialty simulation
|Mat Evans (York U.)<br>Jingqiu Mao (Harvard)<br>Eloise Marais (Harvard)
+
|
|Summer 2011
+
 
 +
|-valign="top"
 +
|Migrate LETFK DA scheme to GCHP
 +
|Kazu Miyazaki (JPL)
 +
|Structural
 +
|
 +
 
 +
|-valign="top"
 +
|Super fast chemistry scheme
 +
|Benjamin Brown-Steiner (AER)<br>Makoto Kelp (Harvard)
 +
|Chemistry
 +
|
 +
*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"
 +
|Add non-volatile cations to ISORROPIA
 +
|Becky Alexander (UW)
 +
|Aerosols
 +
|
 +
 
 +
|-valign="top"
 +
|DMS oxidation scheme updating
 +
|Becky Alexander (UW)<br>Qianjie Chen (UW)
 +
|Chemistry
 +
|
 +
*Delayed - implemented pre-KPP
 +
*Currently bring implemented in KPP by UC Riverside group
 +
 
 +
|-valign="top"
 +
|Heterogeneous sulfate production
 +
|Lin Zhang (PKU)<br>Becky Alexander (UW)<br>Yuxuan Wang (U. Houston)
 +
|Chemistry
 +
|
 +
*Delayed - implemented pre-KPP
 +
 
 +
|-valign="top"
 +
|Hg in WRF-GC
 +
|Yanxu Zhang (Nanjing)
 +
|Hg simulation
 +
|
 +
 
 +
|-valign="top"
 +
|Hg with blowing snow
 +
|Yanxu Xhang (Nanjing)
 +
|Emissions, Hg simulation
 +
|
 +
 
 +
|-valign="top"
 +
|Hg isotopes
 +
|Xiaotian Xu, Yanxu Xhang (Nanjing)
 +
|Hg simulation
 +
|
 +
 
 +
|-valign="top"
 +
|Hg in CESM CAM-CHEM
 +
|Peng Zhang, Yanxu Xhang (Nanjing)
 +
|Hg simulation
 +
|
 +
 
 +
|-valign="top"
 +
|Complex / multicomplex variables
 +
|Shannon Capps (Drexel)
 +
|Structural
 +
|
  
|-
 
 
|}
 
|}
  
--[[User:Bmy|Bob Y.]] 11:43, 20 October 2011 (EDT)
+
----------------
 +
 
 +
'''''[[Main_Page|GEOS-Chem Main Page]] | [[GCHP_Main_Page|GCHP Main Page]]'''''

Revision as of 21:47, 14 January 2022

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. For history of past releases see the GEOS-Chem Versions wiki page.

Release schedule

Please see the GEOS-Chem Release Proposal outlining the procedure and schedule for releasing GEOS-Chem versions.

Merged and awaiting release

See the links below for items merged and awaiting release.

Patch version in development Minor version in development
- GEOS-Chem 13.4.0

Feature integration in progress

Features listed in this table are actively being integrated into GEOS-Chem by the GEOS-Chem Support Team. In addition, we continuously implement structural updates in the model to maintain and develop coupling with other models including GEOS, CESM, and the model adjoint.

Feature Contributor(s) Model scope Ease of implementation Notes and References
Updated Global Inventory of Methane Emissions from Oil/Gas/Coal (GFEI v2) Tia Scarpelli (U. Edinburgh) Emissions Easy
Anthropogenic Methane Emission Inventory for Canada Tia Scarpelli (U. Edinburgh) Emissions Easy
Use EDGARv6 global anthro emissions for CH4 simulation Melissa Sulprizio (GCST) Emissions Medium
Provide climatologies for open fire emissions Melissa Sulprizio (GCST) Emissions Easy
Climatologies for lightning NOx, biomass burning, and volcanoes Lee Murray (Rochester)
Melissa Sulprizio (GCST)
Emissions Easy
Change State_Chm%Species from 4D to vector of 3D arrays Lizzie Lundgren (GCST) Structural Medium
  • Ongoing
Upgrade Fast-JX to Cloud-J Lizzie Lundgren (GCST) Structural Difficult
Add capability to use mass fluxes in advection Sebastian Eastham (MIT)
Liam Bindle (GCST)
Transport Easy
Add diagnostic for vertical air movement (vertical mass flux) Liam Bindle (GCST) Transport Easy
Add capability to read native meteorological data files Liam Bindle (GCST)
Bob Yantosca (GCST)
Structural Medium

Feature integration in the queue

Features listed in this table have been delivered to the GEOS-Chem Support Team and are prioritized to be integrated into GEOS-Chem in the near future.

Feature Contributor(s) Model scope Ease of implementation Notes and References
Adaptive chemical solver (as option) Mike Long (Harvard)
Haipeng Lin (Harvard)
Chemistry Difficult
  • In testing, publication expected in mid-to-late 2022
MEGAN3 Sam Silva (MIT) Emissions Medium
  • DOI: 10.5281/zenodo.3614062
  • Sam Silva and GCST will work on updating this to a more recent GEOS-Chem version in the near future
Canopy Physics Model Sam Silva (MIT) Emissions &
Science
Medium
  • DOI: 10.5281/zenodo.3614062
  • Sam Silva and GCST will work on updating this to a more recent GEOS-Chem version in the near future
Joint CO2-CO-CH4-OCS simulation Beata Bukosa (NIWA)
Kevin Bowman (JPL)
Specialty simulation Medium


Output satellite diagnostics as NetCDF Eloise Marais (UCL) Diagnostics Easy

Feature integration not yet prioritized

Features listed in this table have been delivered to the GEOS-Chem Support Team but are not yet prioritized for integrating into the model.

Feature Contributor(s) Model scope Ease of implementation Notes and References
Stratospheric adjustment with RRTMG in GEOS-Chem Seb Eastham (MIT) Science Medium
Stratospheric HCN chemistry Armin Kleinbohl (JPL)
Debra Weisenstein (Harvard, retired)
Chemistry Medium
  • Delivered to GCST (Jun 2020)
GC-YIBs biosphere-atmospheric chemistry coupled model Xu Yue (NUIST) Science Easy
Ecophysiology module in GEOS-Chem for biosphere-atmosphere exchange Joey Lam(CUHK)
Amos Tai (CUHK)
Science Easy
Extend UCX into the mesosphere Sebastian Eastham (MIT)
Eric Fleming (NASA GMAO)
Chemistry Easy
Landcover/Fire Emissions Offline LPJlmfire Loretta Mickley (Harvard)
Yang Li (Harvard)
Emissions Easy
  • Data files delivered to GCST (July 2021)

Almost there (< 6 months)

Features listed in this table are in development and will likely be delivered to the GEOS-Chem Support Team within the next 6 months.

Feature Contributor(s) Model scope Notes and References
Implement H2 chemistry in UCX Chris Holmes (FSU) Chemistry
  • Identified as a priority for GC 13, but not yet delivered
New soil NOx parameterization Yi Wang (U. Iowa)
Jun Wang (U. Iowa)
Emissions
Updated offline biogenic emissions Hongjian Weng (PKU) Emissions
  • Identified as a priority for GC 13, but not yet delivered
Updated offline sea salt emissions Hongjian Weng (PKU) Emissions
  • Identified as a priority for GC 13, but not yet delivered
Updated offline soil NOx emissions Hongjian Weng (PKU) Emissions
  • Identified as a priority for GC 13, but not yet delivered
Provide recommended rather than hard-coded scaling factors for online emissions GCST Emissions
  • Identified as a priority for GC 13, but not yet developed
Diagnostic to archive XCO2, XCO, and XCH4 Dylan Jones (Toronto) Diagnostic
Provide archived TCR-2 GEOS-Chem OH fields for carbon simulations Kazu Miyazaki (JPL) Input data
BrC aging Xuan Wang (Harvard)
Melanie Hammer(Dalhousie)
Chemistry
Shared Socioeconomic Pathways Emission Inventories Hong Liao (NUIST) Emissions
Rediagnosis of RAS convection in GEOS-Chem Tailong He (Toronto)
Dylan Jones (Toronto)
Andrea Molod (NASA/GMAO)
Convection
  • Work is finished and a manuscript is in preparation.
Change GCHP advection inputs to use total pressure and mixing ratio rather than dry Sebastian Eastham (MIT)
Liam Bindle (GCST)
Transport
  • Identified as a priority for GC 13, but not yet delivered
  • GCHP only
HTAPv3 emissions (0.1 deg, 2002-2018) Emissions & Deposition WG Emissions
Migrating simple SOA formation from carbon_mod.F90 into the KPP "full-chemistry" mechanism GCST Chemistry
Updated parameterization of aerosol size distribution for bulk aerosol simulations Haihui Zhu (WashU)
Shixian Zhai (Harvard)
Aerosols

Over the horizon (6-12 months)

Features listed in this table are in development and will likely be delivered to the GEOS-Chem Support Team in the 6-12 months timeframe.

Feature Contributor(s) Model scope Notes and References
Methylethylketone chemistry Jared Brewer (CSU) Chemistry
Add sulfate dependence to SOA yield from isoprene in simple SOA Eloise Marais (UCL) Chemistry
GTMM updates Ben Geyman (Harvard) Hg simulation


Integrating GMAO's tracer gridded component in GCHP Christoph Keller (NASA GMAO) Transport Tracer simulation
Streamlining of specialty simulations through HEMCO and KPP GCST Chemistry, Specialty simulations

Longer term (12-24 months)

Features listed in this table are in development and will likely be delivered to the GEOS-Chem Support Team in the 12-24 months timeframe.

Feature Contributor(s) Model scope Notes and References
Implement isotope simulation for CO and CH4 in GCHP Lee Murray (Rochester) Specialty simulation
Migrate LETFK DA scheme to GCHP Kazu Miyazaki (JPL) Structural
Super fast chemistry scheme Benjamin Brown-Steiner (AER)
Makoto Kelp (Harvard)
Chemistry
  • 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) Aerosols
DMS oxidation scheme updating Becky Alexander (UW)
Qianjie Chen (UW)
Chemistry
  • 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)
Chemistry
  • Delayed - implemented pre-KPP
Hg in WRF-GC Yanxu Zhang (Nanjing) Hg simulation
Hg with blowing snow Yanxu Xhang (Nanjing) Emissions, Hg simulation
Hg isotopes Xiaotian Xu, Yanxu Xhang (Nanjing) Hg simulation
Hg in CESM CAM-CHEM Peng Zhang, Yanxu Xhang (Nanjing) Hg simulation
Complex / multicomplex variables Shannon Capps (Drexel) Structural

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