GEOS-Chem model development priorities: Difference between revisions

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|Chemistry
|Chemistry
|TBD
|TBD
|Not delivered
|Delivered
|
|
*[https://github.com/geoschem/geos-chem/issues/1625 geos-chem issue #1625]
*[https://github.com/geoschem/geos-chem/issues/1625 geos-chem issue #1625]
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|Emissions
|Emissions
|Simple
|Simple
|Delivered
|Delivered June 2024
|
|
*[https://github.com/geoschem/geos-chem/issues/1745 geos-chem issue #1745]
*[https://github.com/geoschem/geos-chem/issues/1745 geos-chem issue #1745]
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|
|
*[https://github.com/geoschem/geos-chem/pull/2103 geos-chem PR 2103]
*[https://github.com/geoschem/geos-chem/pull/2103 geos-chem PR 2103]
|}
== 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.
{| border=1 cellspacing=0 cellpadding=5
|-bgcolor="#CCCCCC"
!width="200px"|Feature
!width="200px"|Contributor(s)
!width="100px"|Model scope
!width="100px"|Delivery status
!width="300px"|Notes and References
|-valign="top"
|KORUS-AQ emissions for East Asia (as an option)
|Katie Travis (NASA)
|Emissions
|Simple
|
|-valign="top"
|Geologic emission of ethane and propane
|Matthew Rowlinson and Mat Evans(York)
|Emissions
|Delivered<br>Jan 2023
|
*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
|-valign="top"
|[https://github.com/geoschem/geos-chem/pull/629 Ecophysiology module in GEOS-Chem for biosphere-atmosphere exchange]
|Joey Lam(CUHK)<br>Amos Tai (CUHK)
|Science
|Delivered<br>Feb 2021
|
*[https://github.com/geoschem/geos-chem/pull/629 geos-chem PR #629]
|-valign="top"
|LPJ land cover (global), fire (W US), dust emissions (SW N America), 1700-2100
|Yang Li (Baylor University)<br>Loretta Mickley (Harvard)
|Emissions
|Delivered<br>Jul 2021
|
*Data involves many files- need to think about temporal frequency
|-valign="top"
|[https://github.com/geoschem/geos-chem/issues/1867 Online H2 chemistry]
|Maria Paula Pérez-Peña (UNSW)<br>Jenny Fisher (UOW)<br>Dylan Millet (UMN)
|Chemistry
|Delivered<br>June 2023
|
*[https://acp.copernicus.org/articles/22/12367/2022/acp-22-12367-2022.html Pérez-Peña, M.P. et al., ACP, 2022.]
*Implemented in v12.5, needs to be brought up to current version
|-valign="top"
|DMS Chemistry
|Linia Tashmim (UC Riverside)<br>William Porter (UC Riverside)
|Chemistry
|Not delivered
|
|-valign="top"
|Organic acids (RCOOH)
|Katie Travis (NASA)
|Chemistry
|Not delivered
|
|-valign="top"
|Improve carbon & nitrogen conservation in reactions
|Kelvin Bates (Harvard)
|Chemistry
|Not delivered
|
|-valign="top"
|Blowing snow sea salt in TOMAS
|Betty Croft (Dalhousie)
|Aerosols
|Not delivered
|
|-valign="top"
|[https://pubs.rsc.org/en/content/articlelanding/2022/EM/D2EM00019A Australian anthropogenic Hg emissions]
|Stephen MacFarlane (UOW)<br>Jenny Fisher (UOW)<br> Hannah Horowitz (U. Illinois)<br>Viral Shah (Harvard)
|Hg simulation
|Not delivered
|
|-valign="top"
|WRF-GC Hg simulation
|Xiaotian Xu (Nanjing U.)<br>Yanxu Zhang (Nanjing U.)
|Hg simulation<br>WRF-GC
|Not delivered
|
|-valign="top"
|Updated HgII gas-partical partitioning
|Kaiyun Liu (Tsinghua U.)<br>Qingru Wu (Tsinghua U.)<br>Shuxiao Wang (Tsinghua U.)
|Hg simulation
|Not delivered
|
*Should be option, not default
|-valign="top"
|Dry deposition to F90 (readability)
|Chris Holmes (FSU)
|Dry deposition
|Not delivered
|
|}
== 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
|- bgcolor="#cccccc"
!width="200px"|Feature
!width="200px"|Contributor(s)
!width="100px"|Model scope
!width="420px"|Notes and References
|-valign="top"
|PPN+hv, PPN+OH
|Robert Ryan (UCL)
|Chemistry
|
|-valign="top"
|MBO
|Michael Vermeuel (UMN)
|Chemistry
|
|-valign="top"
|Initial conditions for CH4 correcting background and stratospheric biases
|Todd Mooring (Harvard)
|Methane simulation
|
|-valign="top"
|Migrating simple SOA formation from carbon_mod.F90 into the KPP "full-chemistry" mechanism
|Bob Yantosca (Harvard)
|Aerosols<br>Structural
|
*Ongoing
|-valign="top"
|Re-binning of off-line sea salt and dust for use in TOMAS
|Betty Croft (Dalhousie)
|Aerosols
|
|-valign="top"
|Adaption of TOMAS' in-cloud aqueous sulfate production for KPP versus sulfate_mod.F90
|Betty Croft (Dalhousie)
|Aerosols
|
|-valign="top"
|ML algorithms for bulk aerosols
|Arshad Nair (SUNY Albany)<br>Fangqun Yu (SUNY Albany)
|Aerosols
|
|-valign="top"
|PM2.5 and PM10 calculations: aerodynamic vs geometric diameters
|Shixian Zhai (Harvard)
|Aerosols
|
|-valign="top"
|Updates to Hodzic SOA scheme
|Jared Brewer (Harvard)
|Aerosols
|
|-valign="top"
|Automated reduction in isoprene scheme
|Dan Westervelt (Lamont-Doherty)
|Aerosols
|
|-valign="top"
|Brown carbon chemsitry
|Jingqiu Mao (U. Alaska)<br>Xuan Wang (CUHK)
|Aerosols
|
|-valign="top"
|GEOS resolution and subgrid convection - Part 2 RAS parameter tuning
|Tailong He (Toronto)<br>Dylan Jones (Toronto)<br>Andrea Molod (NASA GMAO)
|Convection
|
|-valign="top"
|High-res top-down TROPOMI-derived seasonal mean NOx emissions for China
|Jintai Lin (PKU)
|Emissions
|
*Horizontal resolution: 5km, temporal resolution: JJA mean
*monthly data will be available at a later stage; please contact us
|-valign="top"
|Updated biomass burning emission factors and species
|Tess Carter (MIT)
|Emissions
|
|-valign="top"
|Updated offline sea salt emissions
|Hongjian Weng (PKU) <br> Jintai Lin (PKU)
|Emissions
|
|-valign="top"
|[https://gmd.copernicus.org/articles/13/2569/2020/ Canopy Physics Model]
|Sam Silva (MIT)
|Emissions &<br>Science
|
*DOI: [https://zenodo.org/record/3614062#.XzvrH5NKjOR 10.5281/zenodo.3614062]
*Needs to be updated to a more recent GEOS-Chem version
|-valign="top"
|Assessment/improvement of OpenMP performance in GC-Classic and HEMCO standalone
|Bob Yantosca (Harvard)
|Model performance
|
*Ongoing (will be done as time allows)
|-valign="top"
|Assess memory leak in GCHP
|Killian Murphy (York)
|Model performance
|
*NOTE: Most memory leaks in GCHP have been fixed by [https://github.com/geoschem/geos-chem/pull/1353 geoschem/geos-chem PR #1353]. Will wait until MAPL3 to further assess.
|-valign="top"
|Hybrid MPI-OpenMP in GCHP
|Seb Eastham (MIT)<br>Killian Murphy (York)
|Model performance
|
|-valign="top"
|Improve pressure handling in GCHP advection
|Seb Eastham (MIT)<br>Yuanjian Zhang (WashU)
|GCHP
|
|-valign="top"
|Use ExtData2G as default GCHP input module
|Lizzie Lundgren (Harvard)
|GCHP
|Will replace ExtData.rc with yaml file
|}
== 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
|- bgcolor="#cccccc"
!width="200px"|Feature
!width="200px"|Contributor(s)
!width="100px"|Model scope
!width="420px"|Notes and References
|-valign="top"
|Snow / Icy Bromine
|Becky Alexander (UW)<br>William Swanson (U. Alaska)<br>Shuting Zhai (UW)
|Chemistry
|
|-valign="top"
|Monoterpene oxidation scheme
|Jessica Haskins (MIT)
|Chemistry
|
|-valign="top"
|Fire related VOCs including furans
|Lu Hu (UMT)<br>Lixu Jin (UMT)
|Chemistry
|
|-valign="top"
|Extension of UCX into the mesosphere
|Seb Eastham (MIT)<br>Eric Fleming (NASA)
|Chemistry
|
|-valign="top"
|Methane flux ingestion
|Eloise Marais (UCL)
|Chemistry
|
|-valign="top"
|Dust non-sphericity impacts on surface chem and optical properties
|Inderjeet Singh (WashU)
|Aerosols
|
|-valign="top"
|Size-resolved stratospheric aerosol
|Seb Eastham (MIT)
|Aerosols
|
|-valign="top"
|Extend aerosol settling
|Eloise Marais (UCL)
|Aerosols
|
|-valign="top"
|Stratospheric aerosol APM
|Fangqun Yu (SUNY)
|Aerosols
|
|-valign="top"
|Plume-in-grid model
|Hongwei Sun (Harvard)
|Chemistry
|
|-valign="top"
|Updated lightning NOx: Prescribe from ground and geostationary lightning flashes
|Lee Murray (Rochester)
|Emissions
|
|-valign="top"
|Seb aircraft emissions beyond recent 2019 update
|Seb Eastham (MIT)
|Emissions
|
|-valign="top"
|FRP-based fire emsisions for eastern US at 0.2 deg
|Charlie Fite (FSU)
|Emissions
|
|-valign="top"
|Hg iodine chemistry
|Yiming Fu<br>Yanxu Zhang (Nanjing U.)
|Hg simulation
|
|-valign="top"
|Hg simulation in GCHP
|Ari Feinberg (MIT)<br>Lyssa Freese (MIT)
|Hg simulation
|
|-valign="top"
|Update Hg ocean and soil boundary conditions for consistency with new chemistry
|Yanxu Zhang (Nanjing U.)
|Hg simulation
|
|-valign="top"
|Dry deposition diagnostics by land cover
|Holly Nowell (FSU)
|Diagnostics
|
|-valign="top"
|Dry deposition process diagnostics
|Holly Nowell (FSU)
|Diagnostics
|
|-valign="top"
|Isotope simulation for CO and CH4 in GCHP
|Lee Murray (Rochester)
|Carbon simulation
|
|-valign="top"
|Updated bottom-up global CH4 oil, gas, and coal emissions (GFEI v3)
|Melissa Sulprizio (Harvard)<br>Tia Scarpelli (U. Edinburgh)<br>Zichong Chen (Harvard)
|Emissions<br>CH4 simulation
|
|-valign="top"
|Modularization of aerosols code for interface with GOCART in GEOS
|Christoph Keller (GMAO)
|Structural
|
|-valign="top"
|Improve load balancing in GCHP
|Seb Eastham (MIT)
|Model performance
|
|-valign="top"
|Testing the use of monthly mean MERRA-2 CWC with Pb-210 aerosol tracer
|Bo Zhang (NIA)<br>Hongyu Liu (NIA / NASA Langley)
|Transport
|
|-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 (SUNY Albany)<br>Fangqun Yu (SUNY-Albany)
|Transport
|
|-valign="top"
|Evaluate vertical mixing in GEOS-Chem with model-model and model-observation comparisons
|Seb Eastham (MIT)<br>Clara Orbe (NASA GISS)<br>Andrew Schuh (CSU)
|Transport
|
|-valign="top"
|MAPL version 3
|Lizzie Lundgren (Harvard)
|GCHP
|Will include History wildcard handling in GCHP
|-valign="top"
|Migrate benchmark meteorology from MERRA2 to GEOS-IT
|GCST
|Benchmarking
|
|}
== 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
|- bgcolor="#cccccc"
!width="200px"|Feature
!width="200px"|Contributor(s)
!width="100px"|Model scope
!width="420px"|Notes and References
|-valign="top"
|Updates to Aromatic chemistry
|Stephen MacFarlane (UOW)<br>Jenny Fisher (UOW)
|Chemistry
|
|-valign="top"
|Nitrate photolysis
|Mat Evans (York)<br>Thomas Sherwen (York)<br>Matthew Rowlinson (York)
|Chemistry
|
|-valign="top"
|In aerosol chemistry Halogens
|Mat Evans (York)<br>Hansen Cao (CU Boulder)
|Chemistry
|
|-valign="top"
|Benchmark box model of GC Chemistry
|Katie Travis (NASA)
|Chemistry
|
|-valign="top"
|Alkyl nitrates Alk7, PHAN
|Katie Travis (NASA)
|Chemistry
|
|-valign="top"
|Add stratospheric ozone species to full-chemistry simulations
|Lee Murray (Rochester)
|Chemistry
|
|-valign="top"
|Perchlorate chemistry
|Yuk Chun Chan (UWAB)
|Chemistry
|
|-valign="top"
|Explicit heterogeneous sulfate chemistry
|Katie Travis (NASA)<br>Becky Alexander (UT)
|Chemistry
|
|-valign="top"
|HOx and ozone "emissions" from lightning as option in model to play with
|Jingqiu (Alaska)<br>Lee Murray (Rochester)
|Emissions
|
|-valign="top"
|Sea salt aerosol from sea ice leads
|Hannah Horowitz (U. Illinois)
|Emissions
|
|-valign="top"
|Drought-stress algorithm
|Wei Li (U. Houston)
|
|
|-valign="top"
|Biomass burning injection height profiles
|Inderjeet Singh (WashU)
|Emissions
|
|-valign="top"
|OCIM integration
|Chris Holmes (FSU)<br>Lee Murray (Rochester)
|
|
|-valign="top"
|Updating landcover products in GEOS-Chem
|Chris Holmes (FSU)<br>Jeff Geddes (BU)
|Input data
|
|-valign="top"
|Dry deposition physical improvement
|Chris Holmes (FSU)
|Dry deposition
|
|-valign="top"
|TOMAS WRF-GC in regional Thailand simulation
|Win Trivitayanurak (Chulalongkorn U)
|Aerosols
|


|}
|}

Revision as of 14:37, 24 June 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
New soil NOx parameterization Yi Wang (U. Iowa)
Jun Wang (U. Iowa) 		Emissions 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
ALK4 & R4N2 chemistry Jared Brewer (UMN) Chemistry TBD Delivered
Mass flux regridding fix in MAPL Tom Clune (GMAO)
Seb Eastham (MIT) 		GCHP input regridding Medium
  • GCHP Issue #377
  • Currently on hold, as the submitted update results in zero diff
New version of CEDS at 0.1 deg Dandan Zhang (WashU) Emissions Simple Delivered June 2024
  • geos-chem issue #1745
  • Currently on hold while an issue with seasonality in the new CEDS data is being investigated by the authors.
Remove differences in GC-Classic due to HEMCO reading REAL8 restart as REAL4 Lizzie Lundgren (Harvard) GC-Classic Medium
Capture all trop and PBL height changes in budget diagnostics Chris Holmes (FSU)
Lizzie Lundgren (Harvard) 		Diagnostics Medium Delivered
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