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="500px"|Feature
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!width="200px"|Patch version in development
!width="200px"|Contributor(s)
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!width="200px"|Minor version in development
!width="100px"|Model scope
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!width="300px"|Notes
+
  
 
|-valign="top"
 
|-valign="top"
|TBD
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|align="center"|'''[[GEOS-Chem 13.3.4]]'''
|
+
|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  
 
|-bgcolor="#CCCCCC"
 
|-bgcolor="#CCCCCC"
!width="500px"|Feature
+
!width="200px"|Feature
 
!width="200px"|Contributor(s)
 
!width="200px"|Contributor(s)
 
!width="100px"|Model scope
 
!width="100px"|Model scope
!width="100px"|East 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]
+
|Use degassing-only volcano emissions for benchmark simulations
|Barron Henderson (EPA)<br>Lyssa Freese (MIT)
+
|Christoph Keller (GMAO)<br>Daniel Jacob (Harvard)
|Emissions
+
|Emissions &<br>Benchmarking
 +
|Easy
 
|
 
|
|
+
*See [https://github.com/geoschem/geos-chem/pull/1005 geoschem/geos-chem #1005]
*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."
+
*Currently slated for 13.4.0
  
 
|-valign="top"
 
|-valign="top"
|[https://data.pnnl.gov/dataset/CEDS-4-21-21 CEDS v2 emissions through 2019]
+
|Upgrade Fast-JX to Cloud-J
|Patrick Campbell (NOAA-ARL)
+
|Lizzie Lundgren (GCST)
|Emissions
+
|Structural
|
+
|Difficult
 
|
 
|
 +
*See [https://github.com/geoschem/cloud-j geoschem/cloud-j]
  
 
|-valign="top"
 
|-valign="top"
|[http://globalchange.bnu.edu.cn/research/laiv6 Updated Yuan/BNU MODIS LAI product (2000-2019)]
+
|Migrating sulfate chemistry into KPP
|Jenny Fisher (U. Wollongong)
+
|Mike Long (GCST)
|Emissions, Dry deposition
+
|Chemistry &<br>Structural
 +
|Difficult
 
|
 
|
|
+
*Complete but needs validation & further testing
*Processing scripts delivered to GCST (Aug 2020)
+
 
+
|}
+
 
+
== Feature integration in the queue ==
+
 
+
{| border=1 cellspacing=0 cellpadding=5
+
|-bgcolor="#CCCCCC"
+
!width="500px"|Feature
+
!width="200px"|Contributor(s)
+
!width="100px"|Model scope
+
!width="100px"|East of implementation
+
!width="200px"|Notes
+
  
 
|-valign="top"
 
|-valign="top"
|[https://gmd.copernicus.org/articles/13/2569/2020/ Canopy Physics Model]
+
|[http://acmg.seas.harvard.edu/publications/2021/shah_est_2021.pdf Updated Hg chemistry in KPP]
|Sam Silva (MIT)
+
|Viral Shah (Harvard)<br>Colin Thackray (Harvard)<br>Mike Long (Harvard)
|Science
+
|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)
+
|Sebastian Eastham (MIT) <br> Liam Bindle (GCST)
|Emissions
+
|Transport
|
+
|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
 
|
 
|
 
*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
 +
|Easy
 
|
 
|
|
 
*The existing Rn emissions will remain as an option
 
*Data are available at https://doi.org/10.5281/zenodo.3942287
 
  
 
|-valign="top"
 
|-valign="top"
|[[Grid-independent_emissions|Updated offline emissions]]
+
|[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]
|Yanshun Li (WUStL)<br>Hongjian Weng (PKU)
+
|Lee Murray (Rochester)<br>Melissa Sulprizio (GCST)
 
|Emissions
 
|Emissions
|
+
|Easy
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Provide recommended rather than hard-coded scaling factors for online emissions
+
|[https://github.com/geoschem/geos-chem/pull/945 Add option for driving GEOS-Chem with native GEOS meteorological files]
|GCST
+
|Liam Bindle (GCST)
|Emissions
+
|Structural
|
+
|Easy
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|[https://github.com/geoschem/geos-chem/issues/331 Provide climatologies for lightning NOx, volcano, and open fire emissions]
+
|[https://github.com/geoschem/geos-chem/pull/990 Change State_Chm%Species from 4D to vector of 3D arrays]
|GCST
+
|Lizzie Lundgren (GCST)
|Emissions
+
|Structural
|
+
|Medium
 
|
 
|
 +
|}
  
|-valign="top"
+
== Feature integration in the queue ==
|[https://www.sciencedirect.com/science/article/abs/pii/S1352231019305138?via%3Dihub Trace metal simulation]
+
|Junwei Xu (Dalhousie)
+
|Specialty simulation
+
|
+
|
+
*Delivered to GCST (Nov 2020)
+
*See [https://github.com/geoschem/geos-chem/pull/511 geoschem/geos-chem PR #511]
+
  
|-valign="top"
+
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.
|[https://github.com/geoschem/geos-chem/issues/560 C2H4 and C2H2 chemistry]
+
 
|Kelvin Bates (Harvard)<br>Ke Li (Harvard)
+
{| border=1 cellspacing=0 cellpadding=5
|Chemistry
+
|-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
+
|
+
|
+
*Delivered to GCST (Sep 2020)
+
*See [https://github.com/geoschem/geos-chem/pull/456 geoschem/geos-chem PR #456]
+
 
+
|-
+
|[https://acp.copernicus.org/articles/17/3699/2017/ Blowing snow emissions of sea salt and sea salt bromide]
+
|Lyatt Jaegle (UW)
+
 
|Emissions
 
|Emissions
 +
|Medium
 
|
 
|
|
+
*Implementation details may be found at https://zenodo.org/record/3614062#.XzvrH5NKjOR
*Delivered to GCST (Jun 2020)
+
*Base code version is 12.3.0
*See [https://github.com/geoschem/geos-chem/pull/356 geoschem/geos-chem PR #356]
+
  
 
|-valign="top"
 
|-valign="top"
|[https://www.pnas.org/content/117/42/26076 Updated aerosol dry deposition]
+
|[https://gmd.copernicus.org/articles/13/2569/2020/ Canopy Physics Model]
|Jeff Pierce (CSU)
+
|Sam Silva (MIT)
|Dry deposition
+
|Science
|
+
|Medium
 
|
 
|
*See [https://github.com/geoschem/geos-chem/issues/604 geoschem/geos-chem #604]
+
*Code is available at https://zenodo.org/record/3614062
 +
*Base code version is 12.3.0
  
 
|-valign="top"
 
|-valign="top"
|[https://gmd.copernicus.org/articles/13/2475/2020/gmd-13-2475-2020.pdf Adaptive chemical solver] (as option)
+
|[https://github.com/geoschem/geos-chem/issues/997 Update surface resistance for ozone deposition to ice/snow]
|Lu Shen (Harvard)
+
|Ryan Pound (York)<br>Shuting Zhai (UW)
|Chemistry
+
|Drydep
|
+
|Easy
 
|
 
|
 +
*See [https://github.com/geoschem/geos-chem/issues/997 geoschem/geos-chem PR #997]
  
 
|-valign="top"
 
|-valign="top"
Line 172: Line 147:
 
|Beata Bukosa (NIWA)<br>Kevin Bowman (JPL)
 
|Beata Bukosa (NIWA)<br>Kevin Bowman (JPL)
 
|Specialty simulation
 
|Specialty simulation
|
+
|Medium
 
|
 
|
 
*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
|-
+
!colspan="4" bgcolor="#CCFFFF"|Features only affecting GCHP:
+
  
 
|-valign="top"
 
|-valign="top"
|Change GCHP advection inputs to use total pressure and mixing ratio rather than dry
+
|[https://gmd.copernicus.org/articles/13/2475/2020/gmd-13-2475-2020.pdf Adaptive chemical solver] (as option)
|Sebastian Eastham (MIT)
+
|Mike Long (Harvard) <br> Haipeng Lin (Harvard)  
|Transport
+
|Chemistry
|
+
|Difficult
 
|
 
|
 +
*In testing
  
 
|-valign="top"
 
|-valign="top"
|Add capability to read mass fluxes for use in advection
+
|[https://github.com/geoschem/geos-chem/issues/770 Output satellite diagnostics as NetCDF]
|Sebastian Eastham (MIT)
+
|Eloise Marais (UCL)  
|Input data, Transport
+
|Diagnostics
|
+
|Easy
 
|
 
|
 +
  
 
|}
 
|}
Line 197: Line 172:
 
== 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  
 
|-bgcolor="#CCCCCC"
 
|-bgcolor="#CCCCCC"
!width="500px"|Feature
+
!width="200px"|Feature
 
!width="200px"|Contributor(s)
 
!width="200px"|Contributor(s)
 
!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"
+
|[https://github.com/geoschem/geos-chem/issues/559 Implement H2 chemistry in UCX]
+
|Chris Holmes (FSU)
+
|Chemistry'
+
|
+
|
+
  
 
|-valign="top"
 
|-valign="top"
Line 217: Line 186:
 
|Armin Kleinbohl (JPL)<br>Debra Weisenstein (Harvard, retired)
 
|Armin Kleinbohl (JPL)<br>Debra Weisenstein (Harvard, retired)
 
|Chemistry
 
|Chemistry
|
+
|Medium
 
|
 
|
 
*Delivered to GCST (Jun 2020)
 
*Delivered to GCST (Jun 2020)
  
 
|-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
+
|
+
|
+
*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
|
+
|Easy
 
|
 
|
 
*See [https://github.com/geoschem/geos-chem/issues/425 geoschem/geos-chem #425]
 
*See [https://github.com/geoschem/geos-chem/issues/425 geoschem/geos-chem #425]
  
 
|-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
|
+
|Easy
 
|
 
|
 
*Delivered to GCST (Feb 2021)
 
*Delivered to GCST (Feb 2021)
Line 250: Line 211:
 
|Sebastian Eastham (MIT)<br>Eric Fleming (NASA GMAO)
 
|Sebastian Eastham (MIT)<br>Eric Fleming (NASA GMAO)
 
|Chemistry
 
|Chemistry
|
+
|Easy
 
|
 
|
  
 
|-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
 
|
 
|
|
+
*Data files delivered to GCST (July 2021)
*See updates from [http://acmg.seas.harvard.edu/geos/word_pdf_docs/steering_cmte/gc_sc_minutes_24Feb2021.pdf Feb 2021 GCSC meeting]
+
*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
|
+
|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
 
|
 
|
|
+
*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
 
|- bgcolor="#cccccc"
 
|- bgcolor="#cccccc"
!width="500px"|Feature
+
!width="200px"|Feature
 
!width="200px"|Contributor(s)
 
!width="200px"|Contributor(s)
 
!width="100px"|Model scope
 
!width="100px"|Model scope
!width="300px"|Notes
+
!width="420px"|Notes
 +
 
 +
 
 +
|-valign="top"
 +
|[https://github.com/geoschem/geos-chem/issues/559 Implement H2 chemistry in UCX]
 +
|Chris Holmes (FSU)
 +
|Chemistry
 +
|
 +
*Identified as a priority for GC 13, but not yet delivered
 +
 
 +
 
 +
|-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"
 
|-valign="top"
Line 297: Line 304:
 
|Kazu Miyazaki (JPL)
 
|Kazu Miyazaki (JPL)
 
|Input data
 
|Input data
|
 
 
|-valign="top"
 
|Aromatic VOC chemistry
 
|Kelvin Bates (Harvard)<br>Ke Li (Harvard)
 
|Chemistry
 
 
|
 
|
  
Line 316: Line 317:
 
|Emissions
 
|Emissions
 
|
 
|
 
  
 
|-valign="top"
 
|-valign="top"
Line 326: Line 326:
  
 
|-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"
 +
|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
 
|
 
|
  
Line 340: Line 354:
  
 
== 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
 
|- bgcolor="#cccccc"
 
|- bgcolor="#cccccc"
!width="500px"|Feature
+
!width="200px"|Feature
 
!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 356: Line 372:
 
|-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 371: Line 387:
 
|Christoph Keller (NASA GMAO)
 
|Christoph Keller (NASA GMAO)
 
|Transport Tracer simulation
 
|Transport Tracer simulation
|
 
 
|
 
|
  
Line 382: Line 397:
 
|}
 
|}
  
=== 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"
!width="500px"|Feature
+
!width="200px"|Feature
 
!width="200px"|Contributor(s)
 
!width="200px"|Contributor(s)
 
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Revision as of 19:38, 6 December 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
GEOS-Chem 13.3.4 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
Use degassing-only volcano emissions for benchmark simulations Christoph Keller (GMAO)
Daniel Jacob (Harvard)
Emissions &
Benchmarking
Easy
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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