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]]'''''
 
'''''[[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 [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]].
 +
 
 +
== Release schedule ==
 +
 
 +
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.  
  
 
== Merged and awaiting release ==
 
== Merged and awaiting release ==
 +
 +
See the links below for items merged and awaiting release.
  
 
{| border=1 cellspacing=0 cellpadding=5  
 
{| border=1 cellspacing=0 cellpadding=5  
 
|-bgcolor="#CCCCCC"
 
|-bgcolor="#CCCCCC"
!width="200px"|Feature
+
!width="200px"|Patch version in development
!width="200px"|Contributor(s)
+
!width="200px"|Minor version in development
!width="100px"|Model scope
+
!width="300px"|Notes
+
  
 
|-valign="top"
 
|-valign="top"
|TBD
+
|align="center"|none yet
|
+
|align="center"|'''[[GEOS-Chem 13.4.0]]'''
|
+
|
+
  
 
|}
 
|}
  
 
== Feature integration in progress ==
 
== 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.
  
 
{| border=1 cellspacing=0 cellpadding=5  
 
{| border=1 cellspacing=0 cellpadding=5  
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!width="100px"|Model scope
 
!width="100px"|Model scope
 
!width="100px"|Ease of implementation
 
!width="100px"|Ease of implementation
!width="200px"|Notes
+
!width="300px"|Notes
  
 
|-valign="top"
 
|-valign="top"
|[https://github.com/geoschem/geos-chem/issues/547 Update US emissions to NEI2016]
+
|[https://github.com/geoschem/geos-chem/issues/1001 Fix bug in Henry law CALC_HEFF routine in hetchem computations]
|Barron Henderson (EPA)<br>Lyssa Freese (MIT)
+
|Viral Shah (Harvard
|Emissions
+
|Chemistry
 
|Easy
 
|Easy
 
|
 
|
*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."
+
* [https://github.com/geoschem/geos-chem/pull/961 geoschem/geos-chem #1001]
  
 
|-valign="top"
 
|-valign="top"
|[https://data.pnnl.gov/dataset/CEDS-4-21-21 CEDS v2 emissions through 2019]
+
|Use degassing-only volcano emissions for benchmark simulations
|Patrick Campbell (NOAA-ARL)
+
|Christoph Keller (GMAO)<br>Daniel Jacob (Harvard)
|Emissions
+
|Emissions &<br>Benchmarking
|Easy
+
|
+
 
+
|-valign="top"
+
|[http://globalchange.bnu.edu.cn/research/laiv6 Updated Yuan/BNU MODIS LAI product (2000-2019)]
+
|Jenny Fisher (U. Wollongong)
+
|Emissions<br>Dry deposition
+
|Easy
+
|
+
*Processing scripts delivered to GCST (Aug 2020)
+
 
+
|-valign="top"
+
|[[Grid-independent_emissions|Updated offline dust emissions]]
+
|Yanshun Li (WUStL)
+
|Emissions
+
 
|Easy
 
|Easy
 
|
 
|
 +
*See [https://github.com/geoschem/geos-chem/pull/1005 geoschem/geos-chem #1005]
 +
*Currently slated for 13.4.0
  
 
|-valign="top"
 
|-valign="top"
 
|[https://github.com/geoschem/geos-chem/pull/459 Updates to enable automated run directory creation]
 
|[https://github.com/geoschem/geos-chem/pull/459 Updates to enable automated run directory creation]
|GCST
+
|Liam Bindle (GCST)<br>Melissa Sulprizio (GCST)
 
|Run directory
 
|Run directory
 
|Medium
 
|Medium
Line 68: Line 59:
  
 
|-valign="top"
 
|-valign="top"
|[https://github.com/geoschem/geos-chem/issues/666 Modularize FAST-JX]
+
|Upgrade Fast-JX to Cloud-J
 
|Lizzie Lundgren (GCST)
 
|Lizzie Lundgren (GCST)
 
|Structural
 
|Structural
|Medium
+
|Difficult
 
|
 
|
 +
*See [https://github.com/geoschem/cloud-j geoschem/cloud-j]
  
 
|-valign="top"
 
|-valign="top"
|[https://github.com/geoschem/geos-chem/pull/728 Updates for GEOS-Chem in CESM]
+
|Migrating sulfate chemistry into KPP
|Thibaud Fritz (MIT)
+
|Mike Long (GCST)
|Structural
+
|Chemistry &<br>Structural
|Easy
+
|Difficult
 
|
 
|
 
+
*Complete but needs validation & further testing
|}
+
 
+
== Feature integration in the queue ==
+
 
+
{| border=1 cellspacing=0 cellpadding=5
+
|-bgcolor="#CCCCCC"
+
!width="200px"|Feature
+
!width="200px"|Contributor(s)
+
!width="100px"|Model scope
+
!width="100px"|Ease of implementation
+
!width="200px"|Notes
+
  
 
|-valign="top"
 
|-valign="top"
!colspan="5" bgcolor="#CCFFFF"|Updates that will affect full-chemistry simulations
+
|[http://acmg.seas.harvard.edu/publications/2021/shah_est_2021.pdf Updated Hg chemistry in KPP]
 +
|Viral Shah (Harvard)<br>Colin Thackray (Harvard)<br>Mike Long (Harvard)
 +
|Chemistry
 +
|Medium
 +
|
  
 
|-valign="top"
 
|-valign="top"
|[https://gmd.copernicus.org/preprints/gmd-2020-380/ Dust emissions from Meng et al. (in review)]
+
|Add capability to use mass fluxes in advection
|Jun Meng (WUStL)<br>Yanshun Li (WUStL)
+
|Sebastian Eastham (MIT) <br> Liam Bindle (GCST)
|Emissions
+
|Transport
 
|Easy
 
|Easy
 
|
 
|
 +
*Identified as a priority for GC 13, but not yet delivered
 +
*GCHP only
  
|-valign="top"
 
|[https://gmd.copernicus.org/articles/13/2879/2020/ Improved wet scavenging from Luo et al. (2020)] (as option)
 
|Gan Luo (Albany)<br>Fangqun Yu (Albany)
 
|Wet deposition
 
|Medium
 
|
 
*Delivered to GCST (Nov 2020)
 
*See [https://github.com/geoschem/geos-chem/pull/522 geoschem/geos-chem PR #522]
 
*These updates will replace the Luo et al. (2019) option
 
  
 
|-valign="top"
 
|-valign="top"
|[https://acp.copernicus.org/articles/21/1861/2021/ Updated Rn-222 emissions]
+
|[https://github.com/geoschem/geos-chem/issues/331 Provide climatologies for open fire emissions]
|Bo Zhang
+
|Melissa Sulprizio (GCST)
 
|Emissions
 
|Emissions
|Difficult
+
|Easy
 
|
 
|
*The existing Rn emissions will remain as an option
 
*Data are available at https://doi.org/10.5281/zenodo.3942287
 
*Code is based on v11-02f
 
  
 
|-valign="top"
 
|-valign="top"
|[https://github.com/geoschem/geos-chem/issues/331 Climatologies for lightning NOx]
+
|[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]
|Lee Murray (Rochester)
+
|Lee Murray (Rochester)<br>Melissa Sulprizio (GCST)
 
|Emissions
 
|Emissions
 
|Easy
 
|Easy
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|-valign="top"
 
|-valign="top"
|[https://www.sciencedirect.com/science/article/abs/pii/S1352231019305138?via%3Dihub Trace metal simulation]
+
|[https://github.com/geoschem/geos-chem/pull/945 Add option for driving GEOS-Chem with native GEOS meteorological files]
|Junwei Xu (Dalhousie)
+
|Liam Bindle (GCST)
|Specialty simulation
+
|Structural
 
|Easy
 
|Easy
 
|
 
|
*Delivered to GCST (Nov 2020)
 
*See [https://github.com/geoschem/geos-chem/pull/511 geoschem/geos-chem PR #511]
 
  
 
|-valign="top"
 
|-valign="top"
|[https://github.com/geoschem/geos-chem/issues/560 C2H4 and C2H2 chemistry]
+
|[https://github.com/geoschem/geos-chem/pull/990 Change State_Chm%Species from 4D to vector of 3D arrays]
|Kelvin Bates (Harvard)<br>Ke Li (Harvard)
+
|Lizzie Lundgren (GCST)
|Chemistry
+
|Structural
 
|Medium
 
|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.
 +
 +
{| border=1 cellspacing=0 cellpadding=5
 +
|-bgcolor="#CCCCCC"
 +
!width="200px"|Feature
 +
!width="200px"|Contributor(s)
 +
!width="100px"|Model scope
 +
!width="100px"|Ease of implementation
 +
!width="300px"|Notes
  
 
|-valign="top"
 
|-valign="top"
|[http://acmg.seas.harvard.edu/publications/2020/moch_2020_hms_global.pdf HMS chemistry]
+
|[https://gmd.copernicus.org/articles/13/2569/2020/ MEGAN3]
|Jonathan Moch (Harvard)
+
|Sam Silva (MIT)
|Chemistry
+
|Emissions
 
|Medium
 
|Medium
 
|
 
|
*Delivered to GCST (Sep 2020)
+
*Implementation details may be found at https://zenodo.org/record/3614062#.XzvrH5NKjOR
*See [https://github.com/geoschem/geos-chem/pull/456 geoschem/geos-chem PR #456]
+
*Base code version is 12.3.0
  
|-
+
|-valign="top"
|[https://acp.copernicus.org/articles/17/3699/2017/ Blowing snow emissions of sea salt and sea salt bromide]
+
|[https://gmd.copernicus.org/articles/13/2569/2020/ Canopy Physics Model]
|Lyatt Jaegle (UW)
+
|Sam Silva (MIT)
|Emissions
+
|Science
 
|Medium
 
|Medium
 
|
 
|
*Delivered to GCST (Jun 2020)
+
*Code is available at https://zenodo.org/record/3614062
*See [https://github.com/geoschem/geos-chem/pull/356 geoschem/geos-chem PR #356]
+
*Base code version is 12.3.0
  
 
|-valign="top"
 
|-valign="top"
|[https://www.pnas.org/content/117/42/26076 Updated aerosol dry deposition]
+
|[https://github.com/geoschem/geos-chem/issues/997 Update surface resistance for ozone deposition to ice/snow]
|Jeff Pierce (CSU)
+
|Ryan Pound (York)<br>Shuting Zhai (UW)
|Dry deposition
+
|Drydep
 
|Easy
 
|Easy
 
|
 
|
*See [https://github.com/geoschem/geos-chem/issues/604 geoschem/geos-chem #604]
+
*See [https://github.com/geoschem/geos-chem/issues/997 geoschem/geos-chem PR #997]
 
+
|-valign="top"
+
|[https://gmd.copernicus.org/articles/13/2475/2020/gmd-13-2475-2020.pdf Adaptive chemical solver] (as option)
+
|Lu Shen (Harvard)
+
|Chemistry
+
|Difficult
+
|
+
  
 
|-valign="top"
 
|-valign="top"
Line 187: Line 166:
 
*See [https://github.com/geoschem/geos-chem/issues/654 geoschem/geos-chem #654]
 
*See [https://github.com/geoschem/geos-chem/issues/654 geoschem/geos-chem #654]
 
*Ideally implemented as a chemical mechanism in KPP
 
*Ideally implemented as a chemical mechanism in KPP
 +
 +
|-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
 +
 +
|-valign="top"
 +
|[https://github.com/geoschem/geos-chem/issues/770 Output satellite diagnostics as NetCDF]
 +
|Eloise Marais (UCL)
 +
|Diagnostics
 +
|Easy
 +
|
 +
  
 
|}
 
|}
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== Feature integration not yet prioritized ==
 
== 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.
  
 
{| border=1 cellspacing=0 cellpadding=5  
 
{| border=1 cellspacing=0 cellpadding=5  
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!width="100px"|Model scope
 
!width="100px"|Model scope
 
!width="100px"|Ease of implementation
 
!width="100px"|Ease of implementation
!width="200px"|Notes
+
!width="300px"|Notes
  
 
|-valign="top"
 
|-valign="top"
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|-valign="top"
 
|-valign="top"
|[https://gmd.copernicus.org/articles/13/2569/2020/ MEGAN3]
+
|[https://gmd.copernicus.org/articles/13/1137/2020/ GC-YIBs biosphere-atmospheric chemistry coupled model]
|Sam Silva (MIT)
+
|Emissions
+
|Medium
+
|
+
*Implementation details may be found at https://zenodo.org/record/3614062#.XzvrH5NKjOR
+
 
+
|-valign="top"
+
|[https://acp.copernicus.org/articles/17/3699/2017/ GC-YIBs biosphere-atmospheric chemistry coupled model]
+
 
|Xu Yue (NUIST)
 
|Xu Yue (NUIST)
 
|Science
 
|Science
Line 226: Line 214:
  
 
|-valign="top"
 
|-valign="top"
|[http://acmg.seas.harvard.edu/presentations/IGC9/posters/Tue_Posters_lam_joey.pdf Ecophysiology module in GEOS-Chem for biosphere-atmosphere exchange]
+
|[https://github.com/geoschem/geos-chem/pull/629 Ecophysiology module in GEOS-Chem for biosphere-atmosphere exchange]
 
|Joey Lam(CUHK)<br>Amos Tai (CUHK)
 
|Joey Lam(CUHK)<br>Amos Tai (CUHK)
 
|Science
 
|Science
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|-valign="top"
 
|-valign="top"
|Archived CMIP6 Met Products for GEOS-Chem Input
+
|Landcover/Fire Emissions Offline LPJlmfire
|Lee Murray (Rochester)
+
|Loretta Mickley (Harvard)<br>Yang Li (Harvard)
|Input data
+
|Emissions
 
|Easy
 
|Easy
 
|
 
|
*See updates from [http://acmg.seas.harvard.edu/geos/word_pdf_docs/steering_cmte/gc_sc_minutes_24Feb2021.pdf Feb 2021 GCSC meeting]
+
*Data files delivered to GCST (July 2021)
*Official announcement coming soon
+
  
 
|-valign="top"
 
|-valign="top"
|[http://acmg.seas.harvard.edu/publications/2021/shah_est_2021.pdf Updated Hg chemistry]
+
|Anthropogenic Methane Emission Inventory for Canada
|Viral Shah (Harvard)<br>Colin Thackray (Harvard)
+
|Tia Scarpelli (U. Edinburgh)
|Chemistry
+
|Emissions
|Medium
+
|Easy
 
|
 
|
 +
*Scarpelli, T.R., D.J. Jacob, M. Moran, F. Reuland, and D. Gordon, [https://projects.iq.harvard.edu/acmg/publications/gridded-inventory-canadas-anthropogenic-methane-emissions A gridded inventory of Canada's anthropogenic methane emissions], submitted to Environ. Res. Lett., 2021.
  
 
|-valign="top"
 
|-valign="top"
|Landcover/Fire Emissions Offline LPJlmfire
+
|Updated Global Inventory of Methane Emissions from Oil/Gas/Coal (GFEI v2)
|Loretta Mickley (Harvard)<br>Yang Li (Harvard)
+
|Tia Scarpelli (U. Edinburgh)
 
|Emissions
 
|Emissions
 
|Easy
 
|Easy
 
|
 
|
 +
*Scarpelli, T.R., D.J. Jacob, S. Grossman, X. Lu, Z. Qu, M.P. Sulprizio, Y. Zhang, F. Reuland, and D. Gordon, [https://acmg.seas.harvard.edu/files/acmg/files/scarpelli2021_gfei.pdf Updated Global Fuel Exploitation Inventory (GFEI) for methane emissions from the oil, gas, and coal sectors: evaluation with inversions of atmospheric methane observations], submitted to Atmos. Chem. Phys., 2021
  
 
|}
 
|}
  
 
== Almost there (< 6 months) ==
 
== 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.
  
 
{| border=1 cellspacing=0 cellpadding=5
 
{| border=1 cellspacing=0 cellpadding=5
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!width="200px"|Contributor(s)
 
!width="200px"|Contributor(s)
 
!width="100px"|Model scope
 
!width="100px"|Model scope
!width="300px"|Notes
+
!width="420px"|Notes
 +
 
  
 
|-valign="top"
 
|-valign="top"
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|
 
|
 
*Identified as a priority for GC 13, but not yet delivered
 
*Identified as a priority for GC 13, but not yet delivered
 +
  
 
|-valign="top"
 
|-valign="top"
|[https://gmd.copernicus.org/articles/13/2569/2020/ Canopy Physics Model]
+
|[https://iopscience.iop.org/article/10.1088/1748-9326/ac16a3 New soil NOx parameterization]
|Sam Silva (MIT)
+
|Yi Wang (U. Iowa)<br>Jun Wang (U. Iowa)
|Science
+
|Emissions
 
|
 
|
*Identified as a priority for GC 13, but not yet delivered
 
  
 
|-valign="top"
 
|-valign="top"
Line 295: Line 287:
 
|
 
|
 
*Identified as a priority for GC 13, but not yet delivered
 
*Identified as a priority for GC 13, but not yet delivered
*Waiting on updated MODIS LAI data
 
  
 
|-valign="top"
 
|-valign="top"
Line 313: Line 304:
 
|-valign="top"
 
|-valign="top"
 
|Provide recommended rather than hard-coded scaling factors for online emissions
 
|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"
 
|[https://github.com/geoschem/geos-chem/issues/331 Provide climatologies for volcano emissions]
 
|GCST
 
|Emissions
 
|
 
*Identified as a priority for GC 13, but not yet developed
 
 
|-valign="top"
 
|[https://github.com/geoschem/geos-chem/issues/331 Provide climatologies for open fire emissions]
 
 
|GCST
 
|GCST
 
|Emissions
 
|Emissions
Line 342: Line 319:
 
|Kazu Miyazaki (JPL)
 
|Kazu Miyazaki (JPL)
 
|Input data
 
|Input data
|
 
 
|-valign="top"
 
|Aromatic VOC chemistry
 
|Kelvin Bates (Harvard)<br>Ke Li (Harvard)
 
|Chemistry
 
 
|
 
|
  
Line 361: Line 332:
 
|Emissions
 
|Emissions
 
|
 
|
 
  
 
|-valign="top"
 
|-valign="top"
Line 371: Line 341:
  
 
|-valign="top"
 
|-valign="top"
|Read-in of native GEOS output in GCHP
+
|Change GCHP advection inputs to use total pressure and mixing ratio rather than dry
|WUStL GCST
+
|Sebastian Eastham (MIT) <br> Liam Bindle (GCST)
|Input data
+
|Transport
 
|
 
|
 +
*Identified as a priority for GC 13, but not yet delivered
 +
*GCHP only
  
 
|-valign="top"
 
|-valign="top"
|Modularization of GEOS-Chem: FAST-JX as proof-of-concept
+
|HTAPv3 emissions (0.1 deg, 2002-2018)
|Lizzie Lundgren (GCST)
+
|Emissions & Deposition WG
|Structural
+
|Emissions
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Change GCHP advection inputs to use total pressure and mixing ratio rather than dry
+
|Migrating simple SOA formation from carbon_mod.F90 into the KPP "full-chemistry" mechanism
|Sebastian Eastham (MIT)
+
|GCST
|Transport
+
|Chemistry
|GCHP only
+
|
  
 
|-valign="top"
 
|-valign="top"
|Add capability to read mass fluxes for use in advection
+
|Updated parameterization of aerosol size distribution for bulk aerosol simulations
|Sebastian Eastham (MIT)
+
|Haihui Zhu (WashU)<br>Shixian Zhai (Harvard)
|Transport
+
|Aerosols
|GCHP only
+
|
  
 
|}
 
|}
  
 
== Over the horizon (6-12 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 in the 6-12 months timeframe.
  
 
{| border=1 cellspacing=0 cellpadding=5
 
{| border=1 cellspacing=0 cellpadding=5
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!width="200px"|Contributor(s)
 
!width="200px"|Contributor(s)
 
!width="100px"|Model scope
 
!width="100px"|Model scope
!width="300px"|Notes
+
!width="420px"|Notes
  
 
|-valign="top"
 
|-valign="top"
Line 413: Line 387:
 
|-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
|Eloise Marais (Leicester)
+
|Eloise Marais (UCL)
 
|Chemistry
 
|Chemistry
 
|
 
|
Line 440: Line 414:
 
== Longer term (12-24 months)==
 
== 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"
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!width="200px"|Contributor(s)
 
!width="200px"|Contributor(s)
 
!width="100px"|Model scope
 
!width="100px"|Model scope
!width="300px"|Notes
+
!width="420px"|Notes
 
+
|-valign="top"
+
|GCHP Adjoint
+
|Daven Henze (CU Boulder)
+
|Structural
+
|
+
  
 
|-valign="top"
 
|-valign="top"

Latest revision as of 14:58, 23 November 2021

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
none yet 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
Fix bug in Henry law CALC_HEFF routine in hetchem computations Viral Shah (Harvard Chemistry Easy
Use degassing-only volcano emissions for benchmark simulations Christoph Keller (GMAO)
Daniel Jacob (Harvard)
Emissions &
Benchmarking
Easy
Updates to enable automated run directory creation Liam Bindle (GCST)
Melissa Sulprizio (GCST)
Run directory Medium
Upgrade Fast-JX to Cloud-J Lizzie Lundgren (GCST) Structural Difficult
Migrating sulfate chemistry into KPP Mike Long (GCST) Chemistry &
Structural
Difficult
  • Complete but needs validation & further testing
Updated Hg chemistry in KPP Viral Shah (Harvard)
Colin Thackray (Harvard)
Mike Long (Harvard)
Chemistry Medium
Add capability to use mass fluxes in advection Sebastian Eastham (MIT)
Liam Bindle (GCST)
Transport Easy
  • Identified as a priority for GC 13, but not yet delivered
  • GCHP only


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
Add option for driving GEOS-Chem with native GEOS meteorological files Liam Bindle (GCST) Structural Easy
Change State_Chm%Species from 4D to vector of 3D arrays Lizzie Lundgren (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
MEGAN3 Sam Silva (MIT) Emissions Medium
Canopy Physics Model Sam Silva (MIT) Science Medium
Update surface resistance for ozone deposition to ice/snow Ryan Pound (York)
Shuting Zhai (UW)
Drydep Easy
Joint CO2-CO-CH4-OCS simulation Beata Bukosa (NIWA)
Kevin Bowman (JPL)
Specialty simulation Medium
Adaptive chemical solver (as option) Mike Long (Harvard)
Haipeng Lin (Harvard)
Chemistry Difficult
  • In testing
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
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)
Anthropogenic Methane Emission Inventory for Canada Tia Scarpelli (U. Edinburgh) Emissions Easy
Updated Global Inventory of Methane Emissions from Oil/Gas/Coal (GFEI v2) Tia Scarpelli (U. Edinburgh) Emissions Easy

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


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
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
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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