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]]'''''
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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 [https://geos-chem.seas.harvard.edu/geos-working-groups Working Groups] and the [https://geos-chem.seas.harvard.edu/geos-steering-cmte Steering Committee]. For history of past releases see the [[GEOS-Chem_versions|'''GEOS-Chem Versions wiki page''']].
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+
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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 [https://geos-chem.seas.harvard.edu/geos-working-groups Working Groups] and the [https://geos-chem.seas.harvard.edu/geos-steering-cmte Steering Committee]. For history of past releases see the [[GEOS-Chem_versions|GEOS-Chem Versions wiki page]].
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== Release schedule ==
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−
 
+
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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 ==
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{| border=1 cellspacing=0 cellpadding=5  
 
{| border=1 cellspacing=0 cellpadding=5  
 
|-bgcolor="#CCCCCC"
 
|-bgcolor="#CCCCCC"
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!width="200px"|Patch version in development
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!width="300px"|Mergeable at any time
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!width="200px"|Major version in development
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!width="200px"|Version in development
  
 
|-valign="top"
 
|-valign="top"
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|align="center"| -
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|align="center"|'''[[GEOS-Chem no-diff-to-benchmark]]'''
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|align="center"|'''[[GEOS-Chem 14.2.0]]'''
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|align="center"|'''[[GEOS-Chem 14.5.0]]'''
  
 
|}
 
|}
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== Feature integration in progress ==
 
== Feature integration in progress ==
  
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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.  
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Features listed in this table are actively being integrated into GEOS-Chem by the [https://geoschem.github.io/support-team.html 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="300px"|Notes and References
 
!width="300px"|Notes and References
  
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|-valign="top"<
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|-valign="top"
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|Upgrade Fast-JX to Cloud-J
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|ALK4 & R4N2 chemistry
−
|Lizzie Lundgren (Harvard)
+
|Jared Brewer (UMN)
−
|Photolysis
+
|Chemistry
−
|Complicated
+
|Simple
 
|
 
|
−
*Ongoing
+
*[https://github.com/geoschem/geos-chem/pull/2352 geos-chem PR #1625]
 +
*[https://acmg.seas.harvard.edu/files/acmg/files/brewer2022.pdf Brewer, J.F. et al., J. Geophys. Res., 2023.]
  
 
|-valign="top"
 
|-valign="top"
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|Migrating simple SOA formation from carbon_mod.F90 into the KPP "full-chemistry" mechanism
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|Fix pressure handling in HEMCO standalone
−
|Bob Yantosca (Harvard)
+
|Melissa Sulprizio (Harvard)
−
|Structural
+
|HEMCO
−
|Complicated
+
|Simple
 
|
 
|
−
*Ongoing
+
*[https://github.com/geoschem/HEMCO/issues/277 HEMCO issue #277]
  
 
|-valign="top"
 
|-valign="top"
−
|Assessment/improvement of OpenMP performance in GC-Classic and HEMCO standalone
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|[https://github.com/geoschem/geos-chem/issues/1288 New soil NOx parameterization]
−
|Bob Yantosca (Harvard)
+
|Yi Wang (Iowa)<br>Jun Wang (Iowa)
−
|Model performance
+
|Emissions
 
|Medium
 
|Medium
 
|
 
|
−
*Ongoing (will be done as time allows)
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*[https://github.com/geoschem/geos-chem/issues/1288 geos-chem issue #1288]
 +
*Incorporates new met field TSOIL1
  
 
|-valign="top"
 
|-valign="top"
−
|TOMAS in GCHP
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|Fix obspack - not working in 14.4.0
−
|Betty Croft (WashU)
+
|Bob Yantosca (Harvard)
−
|Aerosols
+
|Diagnostics
 
|Medium
 
|Medium
 
|
 
|
−
*Slated for 14.2.0
+
*[https://github.com/geoschem/geos-chem/issues/2328 geos-chem issue #2328]
−
*[https://github.com/geoschem/GCHP/pull/221 geoschem/GCHP PR #221]
+
−
*[https://github.com/geoschem/geos-chem/pull/1261 geoschem/geos-chem PR #1261]
+
−
*[https://github.com/geoschem/HEMCO/pull/145 geoschem/HEMCO PR #145]
+
  
 
|-valign="top"
 
|-valign="top"
−
|Update transport tracer simulation for consistency with the tracer gridded component in GEOS
+
|Cloud-J v8.0 including UV H2O absorption
−
|Melissa Sulprizio (Harvard)
+
|Lizzie Lundgren (Harvard)<br>Michael Prather (UCI)
−
|TransportTracer simulation
+
|Photolysis
 
|Medium
 
|Medium
 
|
 
|
−
*Ongoing
+
*[https://github.com/geoschem/Cloud-J/issues/12 Cloud-J issue #12]
 +
*[https://datadryad.org/stash/dataset/doi:10.7280/D1Q398 Dataset]
 +
*[https://www.science.org/doi/10.1126/science.adn0415 Prather and Zhu (2024)]
  
 
|-valign="top"
 
|-valign="top"
−
|[https://doi.org/10.5194/acp-23-1227-2023 Nitrate photolysis]
+
|Make GC-Classic bit-for-bit reproducible upon restart
−
|Viral Shah (NASA GMAO)
+
|Lizzie Lundgren (Harvard)
−
|Chemistry
+
|GC-Classic
−
|Simple
+
|Medium
 
|
 
|
−
*Slated for 14.2.0
+
*[https://github.com/geoschem/HEMCO/issues/18 HEMCO issue #18]
−
*See [https://github.com/geoschem/geos-chem/pull/1623 geoschem/geos-chem PR #1623]
+
  
 
|-valign="top"
 
|-valign="top"
−
|[https://github.com/geoschem/geos-chem/issues/1627 Bug fix: Add S(IV)+HOBr and S(IV)+HOCl rxn into fullchem mechanism (they had been inadvertently omitted)]
+
|Capture all trop and PBL height changes in budget diagnostics
−
|Becky Alexander (UW)
+
|Chris Holmes (FSU)<br>Lizzie Lundgren (Harvard)
−
|Chemistry<br>Bug fix
+
|Diagnostics
−
|Simple
+
|Medium
 
|
 
|
−
*Slated for 14.2.0
+
*[https://github.com/geoschem/geos-chem/pull/2103 geos-chem PR 2103]
−
*[https://github.com/geoschem/geos-chem/pull/1630 geoschem/geos-chem PR #1630]
+
−
*[https://github.com/geoschem/geos-chem/issues/1627 geoschem/geos-chem #1627]
+
  
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|-valign="top"
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|}
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|[https://github.com/geoschem/geos-chem/issues/1547 Fix sea salt alkalinity and heterogeneous acid-catalyzed halogen chemistry]
+
 
−
|Becky Alexander (UW)
+
== Prioritized and in the queue ==
−
|Chemistry<br>Bug fix
+
 
−
|Simple
+
Features listed in this table are prioritized for integration into GEOS-Chem in the near future.
−
|
+
 
−
*Slated for 14.2.0
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{| border=1 cellspacing=0 cellpadding=5
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*[https://github.com/geoschem/geos-chem/pull/1702 geoschem/geos-chem #1702]
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|-bgcolor="#CCCCCC"
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*Implementing the original fix causes a convergence error in KPP. This may be resolved with a better choice of tolerance for the KPP solver. We are investigating.
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!width="200px"|Feature
 +
!width="200px"|Contributor(s)
 +
!width="100px"|Model scope
 +
!width="100px"|Ease of implementation
 +
!width="100px"|Delivery status
 +
!width="300px"|Notes and References
  
 
|-valign="top"
 
|-valign="top"
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|[https://github.com/geoschem/geos-chem/issues/1529 Bug fix: Initialize CO2 to a relevant value for full-chemistry]
+
|Retire CH4, CO2, tagCO simulations in favor of carbon simulation
−
|Mike Long (GMAO)
+
|Melissa Sulprizio (Harvard)
−
|Chemistry
+
|Carbon gases
 
|Simple
 
|Simple
 
|
 
|
−
*Slated for 14.2.0
+
|
 +
*[https://github.com/geoschem/geos-chem/issues/2387 geos-chem issue #2387]
  
 
|-valign="top"
 
|-valign="top"
−
|Retire all BPCH diagnostics
+
|New version of CEDS at 0.1 deg
−
|Bob Yantosca (Harvard)
+
|Dandan Zhang (WashU)
−
|Diagnostics
+
|Emissions
 
|Simple
 
|Simple
 +
|Delivered June 2024
 
|
 
|
−
*Slated for 14.2.0
+
*[https://github.com/geoschem/geos-chem/issues/1745 geos-chem issue #1745]
−
* Can be done immediately following the [https://github.com/geoschem/geos-chem/pull/1569 TOMAS update for GCHP]  
+
  
 
|-valign="top"
 
|-valign="top"
−
|[https://github.com/geoschem/geos-chem/issues/1429 Update SO4 production in cloud-droplets over oceans]
+
|Chemistry for RCOOH, updated monoterpenes, new PNs and ANs
−
|Becky Alexander (UW)
+
|Katie Travis (NASA)<br>Kelvin Bates (CU Boulder)
−
|Aerosols
+
|GC-Classic
 
|Simple
 
|Simple
 +
|Delivered June 2024
 
|
 
|
−
*Slated for 14.2.0
+
*[https://github.com/geoschem/geos-chem/pull/2318 geos-chem PR #2318]
−
*See [https://github.com/geoschem/geos-chem/pull/1434 geoschem/geos-chem PR #1434]
+
−
*See [https://github.com/geoschem/geos-chem/issues/1429 geoschem/geos-chem #1429]
+
  
 
|-valign="top"
 
|-valign="top"
−
|[https://github.com/geoschem/geos-chem/pull/1292 Update entrainment-limited kinetics in clouds]
+
|Use USTAR read from GEOS instead of calculating from U10M and V10M
−
|Chris Holmes (FSU)
+
|Yuanjian Zhang (WashU)
−
|Chemistry
+
|Emissions
 
|Simple
 
|Simple
 +
|Delivered June 2024
 
|
 
|
−
*Slated for 14.2.0
+
*[https://github.com/geoschem/HEMCO/pull/279 HEMCO PR #279]
−
*See [https://github.com/geoschem/geos-chem/pull/1292 geoschem/geos-chem PR #1292]
+
*NOTE: Mass tuning factors must be recomputed for each met field & resolution (GCClassic)
  
 
|-valign="top"
 
|-valign="top"
−
|[https://github.com/geoschem/geos-chem/issues/331 Provide climatologies for open fire emissions]
+
|Correct the issue that injection height has been artifically decreased by HEMCO
−
|Melissa Sulprizio (Harvard)
+
|Yuanjian Zhang (WashU)
 
|Emissions
 
|Emissions
 
|Simple
 
|Simple
 +
|Delivered June 2024
 
|
 
|
 +
*[https://github.com/geoschem/geos-chem/pull/279 geos-chem PR #2358]
  
 
|-valign="top"
 
|-valign="top"
−
|[https://github.com/geoschem/geos-chem/issues/655 Climatologies for lightning NOx]
+
|PPN photolysis
−
|Lee Murray (Rochester)
+
|Bex Horner (UCL)
−
|Emissions
+
|Chemistry
−
|Simple
+
|Medium
 +
|Delivered June 2024
 
|
 
|
−
*See [https://github.com/geoschem/geos-chem/pull/1628 geoschem/geos-chem PR #1628]
+
*[https://github.com/geoschem/geos-chem/pull/2371 geos-chem PR #2371]
 +
*[https://doi.org/10.5194/egusphere-2024-1541 Horner et al. (2024)]
 +
*Need to update Cloud-J input files accordingly
  
 
|}
 
|}
  
−
== Delivered and in the queue ==
+
== Ready to go in ==
  
−
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.
+
Features listed in this table are ready to go in but have either not been delivered or are not yet prioritized for integration into GEOS-Chem.
  
 
{| 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="100px"|Ease of implementation
+
!width="100px"|Delivery status
−
!width="300px"|Notes and References
+
!width="300px"|Notes and Refereneces
 +
 
  
 
|-valign="top"
 
|-valign="top"
−
|[https://doi.org/10.7910/DVN/23BRII Global continental chlorine (pCl and HCl) emissions]
+
|Binary Activity Thermodynamic (BAT) model for non-ideal mixing of water and organics in organic aerosol
−
|Bingqing Zhang (Georgia Tech)<br>Pengfei Liu (Georgia Tech)
+
|Camilo Serrano (McGill)<br>Andreas Zuend (McGill)
−
|Emissions
+
|Aerosols
−
|Simple
+
|Not delivered
 
|
 
|
−
*Delivered to GCST (Jul 2022)
 
  
−
|}
+
|-valign="top"
−
 
+
|Extend aerosol settling
−
== Delivered but not yet prioritized ==
+
|Eloise Marais (UCL)
−
 
+
|Aerosols
−
Features listed in this table have been delivered to the GEOS-Chem Support Team but are not yet prioritized for integration into GEOS-Chem.
+
|Not delivered
−
 
+
|
−
{| border=1 cellspacing=0 cellpadding=5
+
−
|-bgcolor="#CCCCCC"
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−
!width="200px"|Feature
+
−
!width="200px"|Contributor(s)
+
−
!width="100px"|Model scope
+
−
!width="100px"|Ease of implementation
+
−
!width="300px"|Notes and References
+
  
 
|-valign="top"
 
|-valign="top"
−
|Geologic emission of ethane and propane
+
|Comment back in Ca, Mg, and K cations in aerosol thermo (HETP)
−
|Matthew Rowlinson and Mat Evans(York)
+
|Becky Alexander (UW)
−
|Emissions
+
|Aerosols
−
|Simple
+
|Not delivered
 
|
 
|
−
* Global source from https://doi.org/10.1038/s41561-018-0073-0 with spatial distribution from https://doi.org/10.5194/essd-11-1-2019
+
*[https://github.com/geoschem/geos-chem/issues/2391 geos-chem issue #2391]
  
 
|-valign="top"
 
|-valign="top"
−
|[https://github.com/geoschem/geos-chem/pull/629 Ecophysiology module in GEOS-Chem for biosphere-atmosphere exchange]
+
|Seasalt aerosol from sea ice leads (2002-2011)
−
|Joey Lam(CUHK)<br>Amos Tai (CUHK)
+
|Hannah Horrowitz (UIUC)
−
|Science
+
|Aerosols
−
|Simple
+
|Not delivered
 
|
 
|
−
*Delivered to GCST (Feb 2021)
+
*Offline and online, ready to go in HEMCO (optional in addition to existing seasalt emissions)
−
* [https://github.com/geoschem/geos-chem/pull/629 geoschem/geos-chem #629]
+
  
 
|-valign="top"
 
|-valign="top"
−
|LPJ land cover (global), fire (W US), dust emissions (SW N America), 1700-2100
+
|Fire and anthropogenic emissions not currently turned on (monoterpenes, 1-butadiene etc.)
−
|Yang Li (Baylor University)<br>Loretta Mickley (Harvard)
+
|Katie Travis (NASA)<br>Kelvin Bates (CU Boulder)
 
|Emissions
 
|Emissions
−
|Simple
+
|Not delivered
 
|
 
|
−
*Data files delivered to GCST (July 2021)
+
*[https://github.com/geoschem/geos-chem/issues/2390 geos-chem issue #2390]
−
*Data are quite large - need to think about storage, compression
+
  
−
|}
+
|-valign="top"
−
 
+
|Global organic N dep from various emissions; nitrate aromatics updates
−
== Ready but not delivered ==
+
|May Fu (SUSTech)
−
 
+
|Chemistry +<br>Deposition
−
Features listed in this table are ready but have not been delivered to the GEOS-Chem Support Team.
+
|Not delivered
−
 
+
|
−
{| border=1 cellspacing=0 cellpadding=5
+
−
|-bgcolor="#CCCCCC"
+
−
!width="200px"|Feature
+
−
!width="200px"|Contributor(s)
+
−
!width="100px"|Model scope
+
−
!width="420px"|Notes and References
+
  
 
|-valign="top"
 
|-valign="top"
−
|Online H2 chemistry
+
|Dry deposition to F90 to improve readability
−
|Maria Paula Pérez-Peña (UNSW)<br>Jenny Fisher (UOW)<br>Dylan Millet (UMN)
+
|Chris Holmes (FSU)
−
|Chemistry
+
|Dry Deposition
 +
|Not delivered
 
|
 
|
−
* Pérez-Peña, M.P. et al., ACP, 2022.
+
*[https://github.com/geoschem/geos-chem/issues/2389 geos-chem issue #2389]
−
* [https://acp.copernicus.org/articles/22/12367/2022/acp-22-12367-2022.html DOI: 10.5194/acp-22-12367-2022]
+
  
 
|-valign="top"
 
|-valign="top"
−
|Alk4 & R4N2 chemistry
+
|Ecophysiology module in GEOS-Chem for biosphere-atmosphere exchange
−
|Jared Brewer (Harvard)
+
|Joey Lam  (CUHK)<br>Amos Tai (CUHK)
−
|Chemistry
+
|Dry deposition
 +
|Delivered<br>Feb 2021
 
|
 
|
−
* Brewer, J.F. et al., J. Geophys. Res., submitted 2022.
+
*[https://github.com/geoschem/geos-chem/pull/629 geos-chem PR #629]
−
* [https://acmg.seas.harvard.edu/files/acmg/files/brewer2022.pdf Click here for PDF]
+
  
 
|-valign="top"
 
|-valign="top"
−
|DMS Chemistry
+
|FRP-based fire emissions for eastern US at 0.2 (2019-2020)
−
|Linia Tashmim (UC Riverside)<br>William Porter (UC Riverside)
+
|Chris Holmes (FSU)
−
|Chemistry
+
|Emissions
 +
|Not delivered
 
|
 
|
 +
*[https://github.com/geoschem/geos-chem/issues/2388 geos-chem issue #2388]
  
 
|-valign="top"
 
|-valign="top"
−
|Organic acids (RCOOH)
+
|China agriculture NH3 emissions
−
|Katie Travis (NASA)
+
|Amos Tai (CUHK)
−
|Chemistry
+
|Emissions
 +
|Not delivered
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Update reactions with new JPL & IUPAC recommendations
+
|T-dependent anthropogenic VOCs
−
|Kelvin Bates (Harvard)
+
|May Fu (SUSTech)
−
|Chemistry
+
|Emissions
 +
|Not delivered
 
|
 
|
−
* Currently running simulations to check magnitude of changes
+
*Option. Requires processing existing anthropogenic VOC emissions to generate offline emissions to read in. Parameterised for China.
  
 
|-valign="top"
 
|-valign="top"
−
|Improve carbon & nitrogen conservation in reactions
+
|New source functions for transport tracers beryllium-7 and beryllium-10
−
|Kelvin Bates (Harvard)
+
|Minjie Zheng (ETH)
−
|Chemistry
+
|Emissions
 +
|Delivered<br>June 2024
 
|
 
|
 +
*Available at https://zenodo.org/records/8372652
  
 
|-valign="top"
 
|-valign="top"
−
|Blowing snow sea salt in TOMAS
+
|LPJ land cover (global), fire (W US), dust emissions (SW N America), 1700-2100
−
|Betty Croft (Dalhousie)
+
|Yang Li (Baylor U)<br>Loretta Mickley (Harvard)
−
|Aerosols
+
|Emissions
 +
|Delivered
 
|
 
|
 +
*Data involves many files- need to think about temporal frequency
  
 
|-valign="top"
 
|-valign="top"
−
|New version of CEDS at 0.1 deg
+
|Australian emissions
−
|Emma Knowland (NASA)
+
|Stephen MacFarlane (Wollongong)<br>Jenny Fisher (Wollongong)
 
|Emissions
 
|Emissions
 +
|Not delivered
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|[https://github.com/geoschem/geos-chem/issues/550 MEIC (China regional) for 2000-2017 at 0.5x0.625 deg]
+
|Hg geogenic emissions (volcanic, rock weathering)
−
|Shixian Zhai (Harvard)
+
|Eric Roy (MIT)
 
|Emissions
 
|Emissions
 +
|Not delivered
 
|
 
|
−
* Need permission from Qiang Zhang (Tsinghua U.) to distribute data
+
*[https://github.com/geoschem/geos-chem/issues/2361 geos-chem #2361]
 +
*[https://gmd.copernicus.org/preprints/gmd-2024-65/ Dastoor et al. (2024)]
  
 
|-valign="top"
 
|-valign="top"
−
|KORUS-AQ emissions for East Asia
+
|Hg biomass burning - FINN2.5 & GFED4
−
|Katie Travis (NASA)
+
|Eric Roy (MIT)
 
|Emissions
 
|Emissions
 +
|Not delivered
 
|
 
|
 +
*[https://github.com/geoschem/geos-chem/issues/2361 geos-chem #2361]
 +
*[https://gmd.copernicus.org/preprints/gmd-2024-65/ Dastoor et al. (2024)]
  
 
|-valign="top"
 
|-valign="top"
−
|[https://pubs.rsc.org/en/content/articlelanding/2022/EM/D2EM00019A Australian anthropogenic Hg emissions]
+
|BCC-GC online
−
|Stephen MacFarlane (UOW)<br>Jenny Fisher (UOW)<br> Hannah Horowitz (U. Illinois)<br>Viral Shah (Harvard)
+
|Lin Zhang (PKU)
−
|Hg simulation
+
|External Model
 +
|Not delivered
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|WRF-GC Hg simulation
+
|GC-YIBS with online fire emissions
−
|Xiaotian Xu (Nanjing U.)<br>Yanxu Zhang (Nanjing U.)
+
|Xu Yue (NUIST)<br>Hong Liao (NUIST)
−
|Hg simulation<br>WRF-GC
+
|External Model
 +
|Not delivered
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Updated HgII gas-partical partitioning
+
|GISS-GC offline (GCAP)
−
|Kaiyun Liu (Tsinghua U.)<br>Qingru Wu (Tsinghua U.)<br>Shuxiao Wang (Tsinghua U.)
+
|Lee Murray (Rochester)
−
|Hg simulation
+
|GCAP
 +
|Not delivered
 
|
 
|
−
* Should be option, not default
 
  
 
|-valign="top"
 
|-valign="top"
−
|Dry deposition to F90 (readability)
+
|Archived TCR-2 OH fields for carbon simulations
−
|Chris Holmes (FSU)
+
|Kazu Miyazaki (JPL)
−
|Dry deposition
+
|Input data
 +
|Not delivered
 
|
 
|
 +
*This will be the default OH, but users will have the option of selecting other OH fields
 +
 
|}
 
|}
  
Line 336: Line 343:
  
 
|-valign="top"
 
|-valign="top"
−
|PPN+hv, PPN+OH
+
|Dust non-sphericity impacts on optical properties
−
|Robert Ryan (UCL)
+
|Inderjeet Singh (WashU)
 +
|Aerosols
 +
|
 +
 
 +
|-valign="top"
 +
|Fixes to stratospheric aerosol settling
 +
|Connor Barker (UCL)<br>Eloise Marais (UCL)
 +
|Aerosols
 +
|
 +
 
 +
|-valign="top"
 +
|DMS chemistry in v14
 +
|Linia Tashmim (UCR)<br>Will Porter (UCR)
 
|Chemistry
 
|Chemistry
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|MBO
+
|KPP standalone + 3D Interface
−
|Michael Vermeuel (UMN)
+
|Obin Sturm (USC)
 
|Chemistry
 
|Chemistry
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|[https://github.com/geoschem/geos-chem/issues/1094 Stratospheric adjustment with RRTMG in GEOS-Chem]
+
|NO2+OH+H2O kinetics
−
|Seb Eastham (MIT)
+
|Mat Evans (York)
−
|Science
+
|Chemistry
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Re-binning of off-line sea salt and dust for use in TOMAS
+
|LSODES solver in KPP for faster kinetics
−
|Betty Croft (Dalhousie)
+
|Haipeng Lin (Harvard)
−
|Aerosols
+
|Chemistry
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Adaption of TOMAS' in-cloud aqueous sulfate production for KPP versus sulfate_mod.F90
+
|Load balancing in chemistry solver (GCHP)
−
|Betty Croft (Dalhousie)
+
|Zhouran Sun (WashU)
−
|Aerosols
+
|Chemistry +<br>Performance
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|ML algorithms for bulk aerosols
+
|Active chemistry in mesosphere for both GCHP and GCClassic
−
|Arshad Nair (SUNY Albany)<br>Fangqun Yu (SUNY Albany)
+
|Helena McDonald (MIT)<br>Sebastian Eastham (ICL)
−
|Aerosols
+
|Chemistry
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|PM2.5 and PM10 calculations: aerodynamic vs geometric diameters
+
|Updated aromatic oxidation
−
|Shixian Zhai (Harvard)
+
|Stephen MacFarlane (Wollongong)<br>Jenny Fisher (Wollongong)
−
|Aerosols
+
|Chemistry
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Updates to Hodzic SOA scheme
+
|MCO3 uptake by cloud forming MP; leading to lower PAN
−
|Jared Brewer (Harvard)
+
|Laura Yang (Harvard)
−
|Aerosols
+
|Chemistry
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Automated reduction in isoprene scheme
+
|Implement isotope simulation for CH4 in the carbon simulation
−
|Dan Westervelt (Lamont-Doherty)
+
|Lee Murray (Rochester)
−
|Aerosols
+
|Chemistry
 
|
 
|
 +
*Will have to change negative emissions from soil to a first-order loss process
  
 
|-valign="top"
 
|-valign="top"
−
|Brown carbon chemsitry
+
|Documentation for adding additional aerosol species
−
|Jingqiu Mao (U. Alaska)<br>Xuan Wang (CUHK)
+
|Connor Barker (UCL)
−
|Aerosols
+
|Documentation
 +
|
 +
 
 +
|-valign="top"
 +
|Column diagnostics
 +
|Lizzie Lundgren (Harvard)<br>Viral Shah (GMAO)
 +
|Diagnostics
 +
|
 +
 
 +
|-valign="top"
 +
|TOMAS rate diagnostics -- improve performance
 +
|Betty Croft (WashU/Dal)
 +
|Diagnostics +<br>Performance
 +
|
 +
 
 +
|-valign="top"
 +
|Archive gamma values from heterogeneous chemistry
 +
|Bob Yantosca (Harvard)
 +
|Diagnostics
 +
|
 +
 
 +
|-valign="top"
 +
|RRTMG Documentation
 +
|GCST
 +
|Documentation
 +
|
 +
 
 +
|-valign="top"
 +
|Canopy Physics Model
 +
|Sam Silva (MIT)
 +
|Dry Deposition
 +
|
 +
*Available at https://zenodo.org/records/3614062#.XzvrH5NKjOR (GEOS-Chem 12.3.0)
 +
 
 +
|-valign="top"
 +
|Dry deposition diagnostics by land cover
 +
|Holly Nowell (FSU)<br>Chris Holmes (FSU)
 +
|Dry Deposition
 +
|
 +
 
 +
|-valign="top"
 +
|Dry deposition process diagnostics
 +
|Holly Nowell (FSU)<br>Chris Holmes (FSU)
 +
|Dry Deposition
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|GEOS resolution and subgrid convection - Part 2 RAS parameter tuning
+
|Biomass burning for TOMAS
−
|Tailong He (Toronto)<br>Dylan Jones (Toronto)<br>Andrea Molod (NASA GMAO)
+
|Nicole June (CSU)
−
|Convection
+
|Emissions +<br>Microphysics
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|High-res top-down TROPOMI-derived seasonal mean NOx emissions for China
+
|Historic biomass burning (1750-2010)
−
|Jintai Lin (PKU)
+
|Pengfei Liu (Georgia Tech)
 
|Emissions
 
|Emissions
 
|
 
|
−
*Horizontal resolution: 5km, temporal resolution: JJA mean
 
−
*monthly data will be available at a later stage; please contact us
 
  
 
|-valign="top"
 
|-valign="top"
−
|Updated biomass burning emission factors and species
+
|Rice methane emissions
−
|Tess Carter (MIT)
+
|Zichong Cheng (Harvard)
 +
|Emissions+<br>Carbon simulation
 +
|
 +
 
 +
|-valign="top"
 +
|Updated bottom-up global CH4 oil, gas, and coal emissions (GFEI v3)
 +
|Tia Scarpelli (Carbon Mapper)<br>Melissa Sulprizio (Harvard)
 
|Emissions
 
|Emissions
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Updated offline sea salt emissions
+
|New prior CO2 biospheric fluxes from CMS-FLUX and GMAO
−
|Hongjian Weng (PKU) <br> Jintai Lin (PKU)
+
|Kevin Bowman (JPL)<br>Lesley Ott (GMAO)
 
|Emissions
 
|Emissions
 
|
 
|
 +
*GMAO can provide high-resolution  fluxes (as high as 12 km)
  
 
|-valign="top"
 
|-valign="top"
−
|[https://gmd.copernicus.org/articles/13/2569/2020/ Canopy Physics Model]
+
|Snowpack Br2 emission
−
|Sam Silva (MIT)
+
|Chris Holmes (FSU)
−
|Emissions &<br>Science
+
|Emissions
 
|
 
|
−
*DOI: [https://zenodo.org/record/3614062#.XzvrH5NKjOR 10.5281/zenodo.3614062]
 
−
*Needs to be updated to a more recent GEOS-Chem version
 
  
 
|-valign="top"
 
|-valign="top"
−
|Gridded EPA (GEPA) version 2 emissions for 2012-2018
+
|EDGAR v8.1_toxHg emissions for 1970-2022
−
|Bram Maasakkers (SRON)<br>Erin McDuffie (WashU),<br>Melissa Sulprizio (Harvard)
+
|Eric Roy (MIT)
−
|Emissions<br>CH4 simulation
+
|Emissions
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Assess memory leak in GCHP
+
|Improve pressure handling in GCHP advection
−
|Killian Murphy (York)
+
|Yuanjian Zhang (WashU)<br>Seb Eastham (ICL)
−
|Model performance
+
|GCHP
 
|
 
|
−
*NOTE: Most memory leaks in GCHP have been fixed by [https://github.com/geoschem/geos-chem/pull/1353 geoschem/geos-chem PR #1353].  Need to assess if any memory leaks still remain.
 
  
 
|-valign="top"
 
|-valign="top"
−
|Hybrid MPI-OpenMP in GCHP
+
|Add error trap for duplicate scale factors in HEMCO
−
|Seb Eastham (MIT)<br>Killian Murphy (York)
+
|Bob Yantosca (Harvard)
−
|Model performance
+
|HEMCO
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Improve run directory templating and creation with init_rd.sh and shared directories
+
|Integration testing: Add stretched grid
−
|Jourdan He (WashU)
+
|Lizzie Lundgren (Harvard)
−
|Run directories
+
|Quality Assurance
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Table of CTM and online GCM properties: GCHP, GCC, GEOS-CTM, GC-Nested, online GEOS, GEOS-replay, etc
+
|Integration testing: Add GCHP mass flux run
−
|GCST?
+
|Lizzie Lundgren (Harvard)
−
|Documentation
+
|Quality Assurance
 +
|
 +
 
 +
|-valign="top"
 +
|Integration testing: Add run with all diagnostics turned on
 +
|GCST
 +
|Quality Assurance
 +
|
 +
 
 +
|-valign="top"
 +
|Integration testing: Reinstate TOMAS40
 +
|Betty Croft (Dalhousie/WashU)
 +
|Quality Assurance
 +
|
 +
 
 +
|-valign="top"
 +
|Strat-adjusted RF in GCC and GCHP
 +
|Connor Barker (UCL)<br>Eloise Marais (UCL)
 +
|Radiation
 +
|
 +
 
 +
|-valign="top"
 +
|Continue cleanup of C-preprocessor switches
 +
|Lizzie Lundgren (Harvard)
 +
|Structural
 +
|
 +
 
 +
|-valign="top"
 +
|Updates to Luo deposition scheme
 +
|Gan Luo (Albany)
 +
|Wet Deposition
 +
|
 +
*New version, keep as switch (not default)
 +
 
 +
|-valign="top"
 +
|Testing the use of a new scavenging parameterization developed by Luo and Yu for cold cloud with Pb-210 aerosol tracer
 +
|Gan Luo (Albany)<br>Fangqun Yu (Albany)
 +
|Wet Deposition
 
|
 
|
  
Line 474: Line 576:
  
 
|-valign="top"
 
|-valign="top"
−
|Snow / Icy Bromine
+
|ML algorithms for bulk aerosol
−
|Becky Alexander (UW)<br>William Swanson (U. Alaska)<br>Shuting Zhai (UW)
+
|Arshad Nair (Albany)<br>Fangqun Yu (Albany)
−
|Chemistry
+
|Aerosols
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Monoterpene oxidation scheme
+
|Heterogeneous sulfate chemistry
−
|Jessica Haskins (MIT)
+
|Katie Travis (NASA)
 
|Chemistry
 
|Chemistry
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Fire related VOCs including furans
+
|H2 as an active species
−
|Lu Hu (UMT)<br>Lixu Jin (UMT)
+
|Seb Eastham (ICL)
 
|Chemistry
 
|Chemistry
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Extension of UCX into the mesosphere
+
|HCN, acetonitrile as fire tracers
−
|Seb Eastham (MIT)<br>Eric Fleming (NASA)
+
|Kevin Bates (CU Boulder)
 
|Chemistry
 
|Chemistry
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Methane flux ingestion
+
|Implement ethane in carbon simulation
−
|Eloise Marais (UCL)
+
|Yuzhong Zhang (Westlake)
 
|Chemistry
 
|Chemistry
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Parameterized effective radius
+
|Mesospheric source of CO
−
|Haihui Zhu (WashU)
+
|Dylan Jones (UofT)<br>Pam Wales (NASA GSFC)
−
|Aerosols
+
|Emissions
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Dust non-sphericity impacts on surface chem and optical properties
+
|Drought-stress algorithm
−
|Inderjeet Singh (WashU)
+
|Wei Li (Houston)
−
|Aerosols
+
|Emissions
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Size-resolved stratospheric aerosol
+
|Physically-based resolution correction for BVOC emissions using MEGAN
−
|Seb Eastham (MIT)
+
|May Fu (SUSTech)
−
|Aerosols
+
|Emissions
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Extend aerosol settling
+
|Canadian forest fire prediction system (Canada government forecast model)
−
|Eloise Marais (UCL)
+
|Robin Stevens (Montreal)
−
|Aerosols
+
|Emissions
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Stratospheric aerosol APM
+
|Cooking emissions (not biofuel)
−
|Fangqun Yu (SUNY)
+
|Kelvin Bates (CU Boulder)
−
|Aerosols
+
|Emissions
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Plume-in-grid model
+
|State-specific annual emissions scaling factors (US) (1990-2021)
−
|Hongwei Sun (Harvard)
+
|Ishir Dutta (MIT)
−
|Chemistry
+
|Emissions
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Updated lightning NOx: Prescribe from ground and geostationary lightning flashes
+
|GISS-GC online
 
|Lee Murray (Rochester)
 
|Lee Murray (Rochester)
−
|Emissions
+
|External model
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Seb aircraft emissions beyond recent 2019 update
+
|Hybrid MPI-OpenMP in GCHP
−
|Seb Eastham (MIT)
+
|Seb Eastham (MIT)<br>Killian Murphy (York)<br>Lizzie Lundgren (Harvard)
−
|Emissions
+
|GCHP
 +
|
 +
 
 +
|-valign="top"
 +
|MAPL3: Update to MAPL3 in GCHP, including replacement of ExtData.rc and HISTORY.rc with YAML files
 +
|Lizzie Lundgren (Harvard)
 +
|GCHP
 +
|
 +
 
 +
|-valign="top"
 +
|MAPL3: Comply with MAPL "positive" standard in GCHP diagnostic files
 +
|Lizzie Lundgren (Harvard)
 +
|GCHP
 +
|
 +
 
 +
|-valign="top"
 +
|MAPL3: Wildcards in GCHP History
 +
|Lizzie Lundgren (Harvard)
 +
|GCHP
 +
|
 +
 
 +
|-valign="top"
 +
|MAPL3: Output emissions with positive up convention in GCHP
 +
|Lizzie Lundgren (Harvard)
 +
|GCHP
 +
|
 +
 
 +
|-valign="top"
 +
|Assessment/improvement of OpenMP performance in GC-Classic and HEMCO standalone
 +
|Bob Yantosca (Harvard)
 +
|Performance
 +
|
 +
 
 +
|-valign="top"
 +
|Photophysical oxidation of aldehydes
 +
|Paulo Sebastianelli (Wollongong)<br>Jenny Fisher (Wollongong)
 +
|Chemistry
 +
|
 +
 
 +
|-valign="top"
 +
|DMS updates
 +
|Will Porter (UCR)
 +
|Chemistry
 +
|
 +
 
 +
|-valign="top"
 +
|Furans emission and chemistry
 +
|Lixu Jin (Montana)<br>Lu Hu (Montana)
 +
|Chemistry + <br>Emissions
 +
|
 +
 
 +
|-valign="top"
 +
|Cl2 prodcution from Fe aerosol
 +
|Qianjie Chen (HK Poly)<br>Becky Alexander (UW)
 +
|Chemistry
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|FRP-based fire emsisions for eastern US at 0.2 deg
+
|VCP emissions
−
|Charlie Fite (FSU)
+
|Kevin Bates (CU Boulder)
 
|Emissions
 
|Emissions
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Hg iodine chemistry
+
|Bidirectional land-atmosphere exchange for Hg
−
|Yiming Fu<br>Yanxu Zhang (Nanjing U.)
+
|Yuying Cui (MIT/Tsinghua)
 
|Hg simulation
 
|Hg simulation
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Hg simulation in GCHP
+
|OH covariances for inversions
−
|Ari Feinberg (MIT)<br>Lyssa Freese (MIT)
+
|Elise Penn (Harvard)
−
|Hg simulation
+
|Inversions
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Update Hg ocean and soil boundary conditions for consistency with new chemistry
+
|CESM2-GC offline
−
|Yanxu Zhang (Nanjing U.)
+
|Seb Eastham (ICL)<br>Lee Murray (Rochester)
−
|Hg simulation
+
|Met fields
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Dry deposition diagnostics by land cover
+
|Re-binning of off-line sea salt and dust for TOMAS
−
|Holly Nowell (FSU)
+
|Betty Croft (Dalhousie)
−
|Diagnostics
+
|Microphysics
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Dry deposition process diagnostics
+
|TOMAS nucleation updates
−
|Holly Nowell (FSU)
+
|Sam O'Donnell (CSU)
−
|Diagnostics
+
|Microphysics
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Isotope simulation for CO and CH4 in GCHP
+
|Stratospheric aerosol APM
−
|Lee Murray (Rochester)
+
|Fangqun Yu (SUNY Albany)
−
|Carbon simulation
+
|Microphysics
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Updated bottom-up global CH4 oil, gas, and coal emissions (GFEI v3)
+
|Transition from MERRA-2 to GEOS-IT for benchmarking
−
|Melissa Sulprizio (Harvard)<br>Tia Scarpelli (U. Edinburgh)<br>Zichong Chen (Harvard)
+
|Yuanjian Zhang (WashU)
−
|Emissions<br>CH4 simulation
+
|Quality Assurance
 +
|
 +
 
 +
|-valign="top"
 +
|Automate integration testing on AWS
 +
|Yidan Tang (WashU)
 +
|Quality Assurance
 +
|
 +
 
 +
|-valign="top"
 +
|Integration testing: Add across end of year run
 +
|GCST
 +
|Quality Assurance
 +
|
 +
 
 +
|-valign="top"
 +
|Integration testing: Add GEOS-IT
 +
|Yuanjian Zhang (WashU)
 +
|Quality Assurance
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Modularization of aerosols code for interface with GOCART in GEOS
+
|Separate mixing, emissions, and drydep
−
|Christoph Keller (GMAO)
+
|Yuanjian Zhang (WashU)
 
|Structural
 
|Structural
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Improve load balancing in GCHP
+
|Intel IFX compiler
−
|Seb Eastham (MIT)
+
|Bob Yantosca (Harvard)
−
|Model performance
+
|Structural
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Testing the use of monthly mean MERRA-2 CWC with Pb-210 aerosol tracer
+
|CMake option to only build libraries but not executable, also passing C-preprocessor statements to turn off code
−
|Bo Zhang (NIA)<br>Hongyu Liu (NIA / NASA Langley)
+
|Bob Yantosca (Harvard)<br>Lee Murray (Rochester)
−
|Transport
+
|Structural
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Testing the use of a new scavenging parameterization developed by Luo and Yu for cold cloud with Pb-210 aerosol tracer
+
|Remove differences introduced when breaking up GC-Classic runs in time; and flexible precision in HEMCO
−
|Gan Luo (SUNY Albany)<br>Fangqun Yu (SUNY-Albany)
+
|Lizzie Lundgren (Harvard)
−
|Transport
+
|Structural
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Evaluate vertical mixing in GEOS-Chem with model-model and model-observation comparisons
+
|Limit allocation of State_Met to what is needed per simulation
−
|Seb Eastham (MIT)<br>Clara Orbe (NASA GISS)<br>Andrew Schuh (CSU)
+
|Melissa Sulprizio (Harvard)
−
|Transport
+
|Structural
 +
|
 +
 
 +
|-valign="top"
 +
|Using 3-D precipitation fluxes to calculate precipitation formation and re-evaporation in scavenging (to be consistent with GEOS/GOCART & ground precipitation)
 +
|Gan Luo (Albany)<br>Hongyu Liu (NIA/LaRC)<br>Bo Zhang (NIA/LaRC)
 +
|Wet deposition
 
|
 
|
  
Line 643: Line 823:
  
 
|-valign="top"
 
|-valign="top"
−
|[https://github.com/geoschem/geos-chem/issues/1288 New soil NOx parameterization]
+
|Modal aerosol model (MAM7) in GCHP
−
|Yi Wang (U. Iowa)<br>Jun Wang (U. Iowa)
+
|Shreya Sharma (MIT)
−
|Emissions
+
|Aerosols
 
|
 
|
−
*See [https://github.com/geoschem/geos-chem/issues/1288 geoschem/geos-chem #1288]
 
−
*[https://github.com/geoschem/geos-chem/issues/1288#issuecomment-1255103962 NOTE: This feature has been tabled for the time being.]
 
  
 
|-valign="top"
 
|-valign="top"
−
|Updates to Aromatic chemistry
+
|Online OCIM ocean biogeochemistry
−
|Stephen MacFarlane (UOW)<br>Jenny Fisher (UOW)
+
|Lee Murray (Rochester)<br>Hannah Horowitz (UIUC)<br>Chris Holmes (FSU)
 
|Chemistry
 
|Chemistry
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Nitrate photolysis
+
|Perchlorate chemistry
−
|Mat Evans (York)<br>Thomas Sherwen (York)<br>Matthew Rowlinson (York)
+
|Yuk Chun Chan (UW)
 
|Chemistry
 
|Chemistry
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|In aerosol chemistry Halogens
+
|Non-stomatal dry deposition (2-layer canopy model)
−
|Mat Evans (York)<br>Hansen Cao (CU Boulder)
+
|Michael Vermeuel (Purdue)
−
|Chemistry
+
|Dry Deposition
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Benchmark box model of GC Chemistry
+
|Continental chloride particle emissions (salty dust, road salt)
−
|Katie Travis (NASA)
+
|Jessica Haskins (Utah)
−
|Chemistry
+
|Emissions
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Alkyl nitrates Alk7, PHAN
+
|Multivolatility emission inventory to address gaps in EDGAR/HTAP etc.
−
|Katie Travis (NASA)
+
|Ruochong (Tshingua)
−
|Chemistry
+
|Emissions
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Add stratospheric ozone species to full-chemistry simulations
+
|Lightning NOx production rates
−
|Lee Murray (Rochester)
+
|Bex Horner (UCL)
−
|Chemistry
+
|Emissions
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Perchlorate chemistry
+
|HFO and CF3CHO
−
|Yuk Chun Chan (UWAB)
+
|Beth Killen (Wollongong)<br>Jenny Fisher (Wollongong)
 
|Chemistry
 
|Chemistry
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Explicit heterogeneous sulfate chemistry
+
|Glyoxal updates from isoprene
−
|Katie Travis (NASA)<br>Becky Alexander (UT)
+
|Tzung-May Fu (SUSTech)
 
|Chemistry
 
|Chemistry
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|ISORROPIA-lite
+
|Iodine chemistry
−
|Becky Alexander (UW)
+
|Becky Alexander (UW)<br>Xuan Wang (CUHK)
−
|Aerosols
+
|Chemistry
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|HOx and ozone "emissions" from lightning as option in model to play with
+
|GFED5 biomass burning
−
|Jingqiu (Alaska)<br>Lee Murray (Rochester)
+
|Eric Roy (MIT)
 
|Emissions
 
|Emissions
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Sea salt aerosol from sea ice leads
+
|Ocean Hg surface concentrations for 2010-2020 from multi-model ensemble
−
|Hannah Horowitz (U. Illinois)
+
|Eric Roy (MIT)<br>Ari Feinberg (IQF-CSIC)
−
|Emissions
+
|Hg simulation
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Drought-stress algorithm
+
|Soil Hg emissions 2010-2020
−
|Wei Li (U. Houston)
+
|Eric Roy (MIT)<br>Ari Feinberg (IQF-CSIC)
 +
|Hg simulation
 
|
 
|
 +
 +
|-valign="top"
 +
|Air-sea exchange parameterization
 +
|Eric Roy (MIT)
 +
|Hg simulation
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Biomass burning injection height profiles
+
|Soil Hg emissions parameterization
−
|Inderjeet Singh (WashU)
+
|Ari Feinberg (IQF-CSIC)
−
|Emissions
+
|Hg simulation
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|OCIM integration
+
|Sea salt uptake of GOM
−
|Chris Holmes (FSU)<br>Lee Murray (Rochester)
+
|Eric Roy (MIT)
 +
|Hg simulation
 
|
 
|
 +
 +
|-valign="top"
 +
|Photoreduction rate constant
 +
|Eric Roy (MIT)
 +
|Hg simulation
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Updating landcover products in GEOS-Chem
+
|New observations (2010-2020) in standardized Hg benchmark for intercomparison
−
|Chris Holmes (FSU)<br>Jeff Geddes (BU)
+
|Eric Roy (MIT)/Ari Feinberg (IQF-CSIC)
 +
|Hg simulation
 +
|
 +
 
 +
|-valign="top"
 +
|Hg simulation in GCHP
 +
|Eric Roy (MIT)
 +
|Hg simulation
 +
|
 +
 
 +
|-valign="top"
 +
|OCIM - biogeochemical model - (C/P/N/Fe - no Hg yet) (MATLAB)
 +
|Hannah Horowitz (UIUC)
 +
|Hg simulation
 +
|
 +
 
 +
|-valign="top"
 +
|Possibly updating Hg oxidation chemistry based on Utah field campaigns
 +
|Jessica Haskins (Utah)
 +
|Hg simulation
 +
|
 +
 
 +
|-valign="top"
 +
|New halogen/aerosol fields (surface area / AOD) from 10-year 14.4 benchmark simulation available online
 +
|Viral Shah (NASA GMAO); Eric Roy (MIT); Ari Feinberg (IQF-CSIC)
 
|Input data
 
|Input data
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Dry deposition physical improvement
+
|Extend IMI to CO2 (ICI)
−
|Chris Holmes (FSU)
+
|Hannah Nesser (JPL)  
−
|Dry deposition
+
|Inversions
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|TOMAS WRF-GC in regional Thailand simulation
+
|Global emission inventory of metals
−
|Win Trivitayanurak (Chulalongkorn U)
+
|Tzung-May Fu (SUSTech); He Zhong Tian (Peking Normal U)
−
|Aerosols
+
|Metals simulation
 
|
 
|
  
−
|}
+
|-valign="top"
 +
|Investigate and improve performance of aerosol chemistry
 +
|Bob Yantosca (Harvard)
 +
|Performance
 +
|
  
 +
|-valign="top"
 +
|PAH - update from version 11
 +
|Lexia Cicone (MIT)
 +
|POPs simulation
 +
|
  
−
----------------
+
|-valign="top"
 +
|Species database more accessible; doc updates; TOL discussion
 +
|Jessica Haskins (Utah)
 +
|Structural
 +
|
  
−
'''''[[Main_Page|GEOS-Chem Main Page]] | [[GCHP_Main_Page|GCHP Main Page]]'''''
+
|-valign="top"
 +
|Stretched-grid plotting in GCPy
 +
|Killian Murphy (York)
 +
|Tools
 +
|
 +
 
 +
|-valign="top"
 +
|Model inter-comparison of transport (GEOS, GCHP, GCClassic)
 +
|Lizzie Lundgren (Harvard), Emma Knowland (NASA)
 +
|Transport
 +
|
 +
 
 +
|-valign="top"
 +
|Comparing mass fluxes in GCHP vs. traditional lat/lon wind
 +
|Yuanjian Zhang (WashU), Seb Eastham (ICL)
 +
|Transport
 +
|
 +
 
 +
|}

Latest revision as of 19:48, 18 July 2024

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.

Merged and awaiting release

See the links below for items merged and awaiting release.

Mergeable at any time Version in development
GEOS-Chem no-diff-to-benchmark GEOS-Chem 14.5.0

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
ALK4 & R4N2 chemistry Jared Brewer (UMN) Chemistry Simple
Fix pressure handling in HEMCO standalone Melissa Sulprizio (Harvard) HEMCO Simple
New soil NOx parameterization Yi Wang (Iowa)
Jun Wang (Iowa) 		Emissions Medium
Fix obspack - not working in 14.4.0 Bob Yantosca (Harvard) Diagnostics Medium
Cloud-J v8.0 including UV H2O absorption Lizzie Lundgren (Harvard)
Michael Prather (UCI) 		Photolysis Medium
Make GC-Classic bit-for-bit reproducible upon restart Lizzie Lundgren (Harvard) GC-Classic Medium
Capture all trop and PBL height changes in budget diagnostics Chris Holmes (FSU)
Lizzie Lundgren (Harvard) 		Diagnostics Medium

Prioritized and in the queue

Features listed in this table are prioritized for integration into GEOS-Chem in the near future.

Feature Contributor(s) Model scope Ease of implementation Delivery status Notes and References
Retire CH4, CO2, tagCO simulations in favor of carbon simulation Melissa Sulprizio (Harvard) Carbon gases Simple
New version of CEDS at 0.1 deg Dandan Zhang (WashU) Emissions Simple Delivered June 2024
Chemistry for RCOOH, updated monoterpenes, new PNs and ANs Katie Travis (NASA)
Kelvin Bates (CU Boulder) 		GC-Classic Simple Delivered June 2024
Use USTAR read from GEOS instead of calculating from U10M and V10M Yuanjian Zhang (WashU) Emissions Simple Delivered June 2024
  • HEMCO PR #279
  • NOTE: Mass tuning factors must be recomputed for each met field & resolution (GCClassic)
Correct the issue that injection height has been artifically decreased by HEMCO Yuanjian Zhang (WashU) Emissions Simple Delivered June 2024
PPN photolysis Bex Horner (UCL) Chemistry Medium Delivered June 2024

Ready to go in

Features listed in this table are ready to go in but have either not been delivered or are not yet prioritized for integration into GEOS-Chem.

Feature Contributor(s) Model scope Delivery status Notes and Refereneces


Binary Activity Thermodynamic (BAT) model for non-ideal mixing of water and organics in organic aerosol Camilo Serrano (McGill)
Andreas Zuend (McGill) 		Aerosols Not delivered
Extend aerosol settling Eloise Marais (UCL) Aerosols Not delivered
Comment back in Ca, Mg, and K cations in aerosol thermo (HETP) Becky Alexander (UW) Aerosols Not delivered
Seasalt aerosol from sea ice leads (2002-2011) Hannah Horrowitz (UIUC) Aerosols Not delivered
  • Offline and online, ready to go in HEMCO (optional in addition to existing seasalt emissions)
Fire and anthropogenic emissions not currently turned on (monoterpenes, 1-butadiene etc.) Katie Travis (NASA)
Kelvin Bates (CU Boulder) 		Emissions Not delivered
Global organic N dep from various emissions; nitrate aromatics updates May Fu (SUSTech) Chemistry +
Deposition 		Not delivered
Dry deposition to F90 to improve readability Chris Holmes (FSU) Dry Deposition Not delivered
Ecophysiology module in GEOS-Chem for biosphere-atmosphere exchange Joey Lam (CUHK)
Amos Tai (CUHK) 		Dry deposition Delivered
Feb 2021
FRP-based fire emissions for eastern US at 0.2 (2019-2020) Chris Holmes (FSU) Emissions Not delivered
China agriculture NH3 emissions Amos Tai (CUHK) Emissions Not delivered
T-dependent anthropogenic VOCs May Fu (SUSTech) Emissions Not delivered
  • Option. Requires processing existing anthropogenic VOC emissions to generate offline emissions to read in. Parameterised for China.
New source functions for transport tracers beryllium-7 and beryllium-10 Minjie Zheng (ETH) Emissions Delivered
June 2024
LPJ land cover (global), fire (W US), dust emissions (SW N America), 1700-2100 Yang Li (Baylor U)
Loretta Mickley (Harvard) 		Emissions Delivered
  • Data involves many files- need to think about temporal frequency
Australian emissions Stephen MacFarlane (Wollongong)
Jenny Fisher (Wollongong) 		Emissions Not delivered
Hg geogenic emissions (volcanic, rock weathering) Eric Roy (MIT) Emissions Not delivered
Hg biomass burning - FINN2.5 & GFED4 Eric Roy (MIT) Emissions Not delivered
BCC-GC online Lin Zhang (PKU) External Model Not delivered
GC-YIBS with online fire emissions Xu Yue (NUIST)
Hong Liao (NUIST) 		External Model Not delivered
GISS-GC offline (GCAP) Lee Murray (Rochester) GCAP Not delivered
Archived TCR-2 OH fields for carbon simulations Kazu Miyazaki (JPL) Input data Not delivered
  • This will be the default OH, but users will have the option of selecting other OH fields

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
Dust non-sphericity impacts on optical properties Inderjeet Singh (WashU) Aerosols
Fixes to stratospheric aerosol settling Connor Barker (UCL)
Eloise Marais (UCL) 		Aerosols
DMS chemistry in v14 Linia Tashmim (UCR)
Will Porter (UCR) 		Chemistry
KPP standalone + 3D Interface Obin Sturm (USC) Chemistry
NO2+OH+H2O kinetics Mat Evans (York) Chemistry
LSODES solver in KPP for faster kinetics Haipeng Lin (Harvard) Chemistry
Load balancing in chemistry solver (GCHP) Zhouran Sun (WashU) Chemistry +
Performance
Active chemistry in mesosphere for both GCHP and GCClassic Helena McDonald (MIT)
Sebastian Eastham (ICL) 		Chemistry
Updated aromatic oxidation Stephen MacFarlane (Wollongong)
Jenny Fisher (Wollongong) 		Chemistry
MCO3 uptake by cloud forming MP; leading to lower PAN Laura Yang (Harvard) Chemistry
Implement isotope simulation for CH4 in the carbon simulation Lee Murray (Rochester) Chemistry
  • Will have to change negative emissions from soil to a first-order loss process
Documentation for adding additional aerosol species Connor Barker (UCL) Documentation
Column diagnostics Lizzie Lundgren (Harvard)
Viral Shah (GMAO) 		Diagnostics
TOMAS rate diagnostics -- improve performance Betty Croft (WashU/Dal) Diagnostics +
Performance
Archive gamma values from heterogeneous chemistry Bob Yantosca (Harvard) Diagnostics
RRTMG Documentation GCST Documentation
Canopy Physics Model Sam Silva (MIT) Dry Deposition
Dry deposition diagnostics by land cover Holly Nowell (FSU)
Chris Holmes (FSU) 		Dry Deposition
Dry deposition process diagnostics Holly Nowell (FSU)
Chris Holmes (FSU) 		Dry Deposition
Biomass burning for TOMAS Nicole June (CSU) Emissions +
Microphysics
Historic biomass burning (1750-2010) Pengfei Liu (Georgia Tech) Emissions
Rice methane emissions Zichong Cheng (Harvard) Emissions+
Carbon simulation
Updated bottom-up global CH4 oil, gas, and coal emissions (GFEI v3) Tia Scarpelli (Carbon Mapper)
Melissa Sulprizio (Harvard) 		Emissions
New prior CO2 biospheric fluxes from CMS-FLUX and GMAO Kevin Bowman (JPL)
Lesley Ott (GMAO) 		Emissions
  • GMAO can provide high-resolution fluxes (as high as 12 km)
Snowpack Br2 emission Chris Holmes (FSU) Emissions
EDGAR v8.1_toxHg emissions for 1970-2022 Eric Roy (MIT) Emissions
Improve pressure handling in GCHP advection Yuanjian Zhang (WashU)
Seb Eastham (ICL) 		GCHP
Add error trap for duplicate scale factors in HEMCO Bob Yantosca (Harvard) HEMCO
Integration testing: Add stretched grid Lizzie Lundgren (Harvard) Quality Assurance
Integration testing: Add GCHP mass flux run Lizzie Lundgren (Harvard) Quality Assurance
Integration testing: Add run with all diagnostics turned on GCST Quality Assurance
Integration testing: Reinstate TOMAS40 Betty Croft (Dalhousie/WashU) Quality Assurance
Strat-adjusted RF in GCC and GCHP Connor Barker (UCL)
Eloise Marais (UCL) 		Radiation
Continue cleanup of C-preprocessor switches Lizzie Lundgren (Harvard) Structural
Updates to Luo deposition scheme Gan Luo (Albany) Wet Deposition
  • New version, keep as switch (not default)
Testing the use of a new scavenging parameterization developed by Luo and Yu for cold cloud with Pb-210 aerosol tracer Gan Luo (Albany)
Fangqun Yu (Albany) 		Wet Deposition

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
ML algorithms for bulk aerosol Arshad Nair (Albany)
Fangqun Yu (Albany) 		Aerosols
Heterogeneous sulfate chemistry Katie Travis (NASA) Chemistry
H2 as an active species Seb Eastham (ICL) Chemistry
HCN, acetonitrile as fire tracers Kevin Bates (CU Boulder) Chemistry
Implement ethane in carbon simulation Yuzhong Zhang (Westlake) Chemistry
Mesospheric source of CO Dylan Jones (UofT)
Pam Wales (NASA GSFC) 		Emissions
Drought-stress algorithm Wei Li (Houston) Emissions
Physically-based resolution correction for BVOC emissions using MEGAN May Fu (SUSTech) Emissions
Canadian forest fire prediction system (Canada government forecast model) Robin Stevens (Montreal) Emissions
Cooking emissions (not biofuel) Kelvin Bates (CU Boulder) Emissions
State-specific annual emissions scaling factors (US) (1990-2021) Ishir Dutta (MIT) Emissions
GISS-GC online Lee Murray (Rochester) External model
Hybrid MPI-OpenMP in GCHP Seb Eastham (MIT)
Killian Murphy (York)
Lizzie Lundgren (Harvard) 		GCHP
MAPL3: Update to MAPL3 in GCHP, including replacement of ExtData.rc and HISTORY.rc with YAML files Lizzie Lundgren (Harvard) GCHP
MAPL3: Comply with MAPL "positive" standard in GCHP diagnostic files Lizzie Lundgren (Harvard) GCHP
MAPL3: Wildcards in GCHP History Lizzie Lundgren (Harvard) GCHP
MAPL3: Output emissions with positive up convention in GCHP Lizzie Lundgren (Harvard) GCHP
Assessment/improvement of OpenMP performance in GC-Classic and HEMCO standalone Bob Yantosca (Harvard) Performance
Photophysical oxidation of aldehydes Paulo Sebastianelli (Wollongong)
Jenny Fisher (Wollongong) 		Chemistry
DMS updates Will Porter (UCR) Chemistry
Furans emission and chemistry Lixu Jin (Montana)
Lu Hu (Montana) 		Chemistry +
Emissions
Cl2 prodcution from Fe aerosol Qianjie Chen (HK Poly)
Becky Alexander (UW) 		Chemistry
VCP emissions Kevin Bates (CU Boulder) Emissions
Bidirectional land-atmosphere exchange for Hg Yuying Cui (MIT/Tsinghua) Hg simulation
OH covariances for inversions Elise Penn (Harvard) Inversions
CESM2-GC offline Seb Eastham (ICL)
Lee Murray (Rochester) 		Met fields
Re-binning of off-line sea salt and dust for TOMAS Betty Croft (Dalhousie) Microphysics
TOMAS nucleation updates Sam O'Donnell (CSU) Microphysics
Stratospheric aerosol APM Fangqun Yu (SUNY Albany) Microphysics
Transition from MERRA-2 to GEOS-IT for benchmarking Yuanjian Zhang (WashU) Quality Assurance
Automate integration testing on AWS Yidan Tang (WashU) Quality Assurance
Integration testing: Add across end of year run GCST Quality Assurance
Integration testing: Add GEOS-IT Yuanjian Zhang (WashU) Quality Assurance
Separate mixing, emissions, and drydep Yuanjian Zhang (WashU) Structural
Intel IFX compiler Bob Yantosca (Harvard) Structural
CMake option to only build libraries but not executable, also passing C-preprocessor statements to turn off code Bob Yantosca (Harvard)
Lee Murray (Rochester) 		Structural
Remove differences introduced when breaking up GC-Classic runs in time; and flexible precision in HEMCO Lizzie Lundgren (Harvard) Structural
Limit allocation of State_Met to what is needed per simulation Melissa Sulprizio (Harvard) Structural
Using 3-D precipitation fluxes to calculate precipitation formation and re-evaporation in scavenging (to be consistent with GEOS/GOCART & ground precipitation) Gan Luo (Albany)
Hongyu Liu (NIA/LaRC)
Bo Zhang (NIA/LaRC) 		Wet deposition

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
Modal aerosol model (MAM7) in GCHP Shreya Sharma (MIT) Aerosols
Online OCIM ocean biogeochemistry Lee Murray (Rochester)
Hannah Horowitz (UIUC)
Chris Holmes (FSU) 		Chemistry
Perchlorate chemistry Yuk Chun Chan (UW) Chemistry
Non-stomatal dry deposition (2-layer canopy model) Michael Vermeuel (Purdue) Dry Deposition
Continental chloride particle emissions (salty dust, road salt) Jessica Haskins (Utah) Emissions
Multivolatility emission inventory to address gaps in EDGAR/HTAP etc. Ruochong (Tshingua) Emissions
Lightning NOx production rates Bex Horner (UCL) Emissions
HFO and CF3CHO Beth Killen (Wollongong)
Jenny Fisher (Wollongong) 		Chemistry
Glyoxal updates from isoprene Tzung-May Fu (SUSTech) Chemistry
Iodine chemistry Becky Alexander (UW)
Xuan Wang (CUHK) 		Chemistry
GFED5 biomass burning Eric Roy (MIT) Emissions
Ocean Hg surface concentrations for 2010-2020 from multi-model ensemble Eric Roy (MIT)
Ari Feinberg (IQF-CSIC) 		Hg simulation
Soil Hg emissions 2010-2020 Eric Roy (MIT)
Ari Feinberg (IQF-CSIC) 		Hg simulation
Air-sea exchange parameterization Eric Roy (MIT) Hg simulation
Soil Hg emissions parameterization Ari Feinberg (IQF-CSIC) Hg simulation
Sea salt uptake of GOM Eric Roy (MIT) Hg simulation
Photoreduction rate constant Eric Roy (MIT) Hg simulation
New observations (2010-2020) in standardized Hg benchmark for intercomparison Eric Roy (MIT)/Ari Feinberg (IQF-CSIC) Hg simulation
Hg simulation in GCHP Eric Roy (MIT) Hg simulation
OCIM - biogeochemical model - (C/P/N/Fe - no Hg yet) (MATLAB) Hannah Horowitz (UIUC) Hg simulation
Possibly updating Hg oxidation chemistry based on Utah field campaigns Jessica Haskins (Utah) Hg simulation
New halogen/aerosol fields (surface area / AOD) from 10-year 14.4 benchmark simulation available online Viral Shah (NASA GMAO); Eric Roy (MIT); Ari Feinberg (IQF-CSIC) Input data
Extend IMI to CO2 (ICI) Hannah Nesser (JPL) Inversions
Global emission inventory of metals Tzung-May Fu (SUSTech); He Zhong Tian (Peking Normal U) Metals simulation
Investigate and improve performance of aerosol chemistry Bob Yantosca (Harvard) Performance
PAH - update from version 11 Lexia Cicone (MIT) POPs simulation
Species database more accessible; doc updates; TOL discussion Jessica Haskins (Utah) Structural
Stretched-grid plotting in GCPy Killian Murphy (York) Tools
Model inter-comparison of transport (GEOS, GCHP, GCClassic) Lizzie Lundgren (Harvard), Emma Knowland (NASA) Transport
Comparing mass fluxes in GCHP vs. traditional lat/lon wind Yuanjian Zhang (WashU), Seb Eastham (ICL) Transport
Retrieved from "https://wiki.seas.harvard.edu/geos-chem/index.php?title=GEOS-Chem_model_development_priorities&oldid=54027"