GEOS-Chem model development priorities: Difference between revisions

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|align="center"|'''[[GEOS-Chem no-diff-to-benchmark]]'''
|align="center"|'''[[GEOS-Chem no-diff-to-benchmark]]'''
|align="center"|'''[[GEOS-Chem 14.3.0]]'''
|align="center"|'''[[GEOS-Chem 14.5.0]]'''


|}
|}
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|-valign="top"
|-valign="top"
|TOMAS in GCHP
|[https://github.com/geoschem/geos-chem/issues/1288 New soil NOx parameterization]
|Betty Croft (Dalhousie)
|Yi Wang (U. Iowa)<br>Jun Wang (U. Iowa)
|TOMAS
|Emissions
|Simple
|
*[https://github.com/geoschem/GCHP/pull/221 GCHP PR #221]
*[https://github.com/geoschem/geos-chem/pull/1261 geos-chem PR #1261]
*[https://github.com/geoschem/HEMCO/pull/145 geoschem/HEMCO PR #145]
 
|-valign="top"
|[https://github.com/geoschem/geos-chem/issues/1511 Bug fix for TOMAS sulfate production rates]
|Betty Croft (Dalhousie)
|TOMAS
|Simple
|
*[https://github.com/geoschem/geos-chem/pull/1569 geos-chem PR #1569]
 
|-valign="top"
|Update surface methane boundary condition using NOAA flask data
|Lee Murray (Rochester)
|Input data
|Simple
|
*[https://github.com/geoschem/geos-chem/issues/1626 geos-chem issue #1626]
 
|-valign="top"
|Include nitrate (NIT + NITs) in Ox family
|Melissa Sulprizio (Harvard)
|Chemistry<br>Diagnostics
|Simple
|
 
|-valign="top"
|GCHP carbon simulation
|Bob Yantosca (Harvard)
|Carbon
|Medium
|Medium
|
|
*[https://github.com/geoschem/GCHP/issues/339 geos-chem Issue #339]
*[https://github.com/geoschem/geos-chem/issues/1288 geos-chem issue #1288]
*Incorporates new met field TSOIL1


|-valign="top"
|-valign="top"
|GEOS-IT meteorology
|Horizontal flux regridding fix in MAPL
|Lizzie Lundgren (Harvard)
|Tom Clune (GMAO)
|New meteorology option
|GCHP
|Medium
|Medium
|
|
*[https://github.com/geoschem/geos-chem/pull/1848 geos-chem PR #1848]
*[https://github.com/geoschem/MAPL/pull/36 MAPL PR #36]


|-valign="top"
|-valign="top"
|Cloud-J for computing photolysis rates
|Cloud-J 7.7.2 for greater flexibility in external models
|Lizzie Lundgren (Harvard)
|Lizzie Lundgren (Harvard)
|Photolysis
|Photolysis
|Medium
|Medium
|
|
*[https://github.com/geoschem/geos-chem/pull/1522 geos-chem PR #1848]
*[https://github.com/geoschem/Cloud-J/pull/17 Cloud-J PR #17]
*[https://github.com/geoschem/GCClassic/pull/27 gcclassic PR #27]
*[https://github.com/geoschem/geos-chem/pull/2342 GEOS-Chem PR #2342]
* More Cloud-J PRs in progress


|-valign="top"
|-valign="top"
|Mass flux regridding fix in MAPL
|GCHP run directory improvements for mass flux, stretched grid, and GEOS-IT runs
|Lizzie Lundgren (Harvard)<br>Seb Eastham (MIT)
|Lizzie Lundgren (Harvard)
|GCHP input regridding
|GCHP
|Medium
|
*[https://github.com/GEOS-ESM/MAPL/pull/2056 GEOS-ESM/MAPL PR #2056]
 
|-valign="top"
|Improve pressure level computation for GCHP advection
|Lizzie Lundgren (Harvard)<br>Seb Eastham (MIT)
|GCHP advection
|Medium
|Medium
|
|
*[https://github.com/geoschem/geos-chem/pull/2326 GEOS-Chem PR #2326]


|-valign="top"
|-valign="top"
|GCHP advection diagnostics
|Fixes for GEOS-Chem 14.4 in CESM
|Lizzie Lundgren (Harvard)
|Haipeng Lin (Harvard)<br>Lizzie Lundgren (Harvard)
|GCHP diagnostics
|CESM
|Medium
|Medium
|
|
*[https://github.com/geoschem/geos-chem/pull/2348 GEOS-Chem PR #2348]
*[https://github.com/geoschem/geos-chem/pull/2349 GEOS-Chem PR #2349]
* More PRs in progress


|}
|}
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!width="100px"|Delivery status
!width="100px"|Delivery status
!width="300px"|Notes and References
!width="300px"|Notes and References
|-valign="top"
|ALK4 & R4N2 chemistry
|Jared Brewer (UMN)
|Chemistry
|TBD
|Delivered
|
*[https://github.com/geoschem/geos-chem/issues/1625 geos-chem issue #1625]
*[https://acmg.seas.harvard.edu/files/acmg/files/brewer2022.pdf Brewer, J.F. et al., J. Geophys. Res., 2023.]


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|Emissions
|Emissions
|Simple
|Simple
|Delivered<br>Apr 2023
|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]


|-valign="top
|-valign="top"
|Update volcano emissions through 2022
|Remove differences in GC-Classic due to HEMCO reading REAL8 restart as REAL4
|Melissa Sulprizio (Harvard)
|Lizzie Lundgren (Harvard)
|Emissions
|GC-Classic
|Simple
|Medium
|Delivered<br>Sep 2023
|
|
*[https://github.com/geoschem/HEMCO/issues/18 HEMCO issue #18]
 
|}
 
== 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 Refereneces
 
 
|-valign="top"
|Binary Activity Thermodynamic (BAT) model for non-ideal mixing of water and organics in organic aerosol
|Camilo Serrano and Andreas Zuend (McGill)
|Aerosols
|Not delivered
|
 
|-valign="top"
|Extend aerosol settling
|Eloise Marais (UCL)
|Aerosols
|Not delivered
|
 
|-valign="top"
|Comment back in Ca, Mg, and K cations in aerosol thermo (HETP)
|Becky Alexander (UW)
|Aerosols
|Not delivered
|
|
*https://gmao.gsfc.nasa.gov/gmaoftp/geoscf/volcano_so2/v202302/


|-valign="top"
|-valign="top"
|KORUS-AQ emissions for East Asia (as an option)
|Seasalt aerosol from sea ice leads (2002-2011)
|Katie Travis (NASA)
|Hannah (UIUC)
|Emissions
|Aerosols
|Simple
|Not delivered
|Delivered<br>Apr 2023
|
|


|-valign="top"
|-valign="top"
|[https://doi.org/10.7910/DVN/23BRII Global continental chlorine (pCl and HCl) emissions]
|P/L species should not contribute to the error norm
|Bingqing Zhang (Georgia Tech)<br>Pengfei Liu (Georgia Tech)
|Obin Sturm (PSC)
|Emissions
|Chemistry
|Simple
|Not delivered
|Delivered<br>Jul 2022
|
|


|-valign="top"
|-valign="top"
|ALK4 & R4N2 chemistry
|Additional 6 peroxynitrates (many PANs like species); improve ALK4 & add ALK6
|Jared Brewer (UMN)
|Katherine Travis (NASA LARC)
|Chemistry
|Chemistry
|TBD
|Not delivered
|Not delivered
|
|
*[https://github.com/geoschem/geos-chem/issues/1625 geos-chem issue #1625]
*[https://acmg.seas.harvard.edu/files/acmg/files/brewer2022.pdf Brewer, J.F. et al., J. Geophys. Res., submitted 2023.]


|-valign="top"
|-valign="top"
|[https://github.com/geoschem/geos-chem/issues/1747 Parameterization of SNA and OM dry size]
|Monoterpene oxdation more species & oxdiation products
|Haihui Zhu (WashU)
|Kevin Bates (CU Boulder)
|Aerosols
|Chemistry
|Simple
|Not delivered
|Delivered<br>Aug 2023
|
|
*[https://egusphere.copernicus.org/preprints/2022/egusphere-2022-1292/ Zhu et al., EGUsphere, submitted 2023.]
*[https://github.com/geoschem/geos-chem/pull/1902 geos-chem PR #1902]


|-valign="top"
|-valign="top"
|[https://github.com/geoschem/geos-chem/issues/1288 New soil NOx parameterization]
|PPN photolysis
|Yi Wang (U. Iowa)<br>Jun Wang (U. Iowa)
|Eloise Marais (University College London)
|Emissions
|Chemistry
|TBD
|Not delivered
|Not delivered
|
|
*See [https://github.com/geoschem/geos-chem/issues/1288 geoschem/geos-chem #1288]


|-valign="top"
|global orgainc N dep from various emissions; nitrate aromatics updates
|Tzung-May Fu (SUSTech)
|Chemistry +<br>Deposition
|Not delivered
|


|-valign="top"
|-valign="top"
|[https://github.com/geoschem/geos-chem/issues/1928 Updated 0.1x0.1 timezone file accounting for daylight savings]
|adaptive chemistry (domain-specific) in WRF-GC
|Karn Vohra (UCL)
|Tzung-May Fu (SUSTech)
|Emissions
|Chemistry
|Simple
|Not delivered
|Not delivered
|
|


|}
|-valign="top"
|Alk4 from biogenic vs anthro
|Jared Brewer (UMN)
|Chemistry
|Not delivered
|


== Ready to go in ==
|-valign="top"
|Dry deposition to F90 (readability)
|Chris Holmes (FSU)
|Dry Deposition
|Not delivered
|


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.
|-valign="top"
|Ecophysiology module in GEOS-Chem for biosphere-atmosphere exchange
|Joey Lam, Amos Tai (CUHK)
|Dry deposition
|Not delivered
|


{| border=1 cellspacing=0 cellpadding=5
|-valign="top"
|-bgcolor="#CCCCCC"
|FRP-based fire emissions for eastern US at 0.2
!width="200px"|Feature
|Chris Holmes (FSU)
!width="200px"|Contributor(s)
|Emissions
!width="100px"|Model scope
|Not delivered
!width="100px"|Delivery status
|
!width="300px"|Notes and References


|-valign="top"
|-valign="top"
|Geologic emission of ethane and propane
|China agriculture NH3 emissions
|Matthew Rowlinson and Mat Evans(York)
|Amos Tai (CUHK)
|Emissions
|Emissions
|Delivered<br>Jan 2023
|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


|-valign="top"
|-valign="top"
|[https://github.com/geoschem/geos-chem/pull/629 Ecophysiology module in GEOS-Chem for biosphere-atmosphere exchange]
|T-dependent anthropogenic VOCs
|Joey Lam(CUHK)<br>Amos Tai (CUHK)
|May Fu (SUSTech)
|Science
|Emissions
|Delivered<br>Feb 2021
|Not delivered
|
|
*[https://github.com/geoschem/geos-chem/pull/629 geos-chem PR #629]


|-valign="top"
|-valign="top"
|LPJ land cover (global), fire (W US), dust emissions (SW N America), 1700-2100
|Rasterized shapefiles high-resolution for oil and gas infrastructure in North America
|Yang Li (Baylor University)<br>Loretta Mickley (Harvard)
|Lee Murray (Rochester)
|Emissions
|Emissions
|Delivered<br>Jul 2021
|Not delivered
|
|
*Data involves many files- need to think about temporal frequency


|-valign="top"
|-valign="top"
|[https://github.com/geoschem/geos-chem/issues/550 MEIC (China regional) for 2000-2017 at 0.5x0.625 deg]
|New soil NOx parameterization
|Shixian Zhai (Harvard)
|Yi Wang (U. Iowa), Jun Wang (U. Iowa)
|Emissions
|Emissions
|Delivered
|Not delivered
|
|
*Need permission from Qiang Zhang (Tsinghua U.) to distribute data


|-valign="top"
|-valign="top"
|[https://github.com/geoschem/geos-chem/issues/1867 Online H2 chemistry]
|New source functions for transport tracers beryllium-7 and beryllium-10
|Maria Paula Pérez-Peña (UNSW)<br>Jenny Fisher (UOW)<br>Dylan Millet (UMN)
|Minjie Zheng (ETH)
|Chemistry
|Emissions
|Delivered<br>June 2023
|Not delivered
|
|
*[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"
|-valign="top"
|[https://github.com/geoschem/geos-chem/pull/1983 Updated gravitational settling, dry mass-weighted mean diameters and hygroscopic growth in aerosol dry deposition]
|LPJ land cover (global), fire (W US), dust emissions (SW N America), 1700-2100
|Yanshun Li (WashU)
|Yang Li (Baylor University), Loretta Mickley (Harvard)
|Aerosols
|Emissions
|Delivered<br>Oct 2023
|Not delivered
|
|
*[https://acp.copernicus.org/articles/23/12525/2023/acp-23-12525-2023.html Li et al., ACP, 2023.]
*[https://github.com/geoschem/geos-chem/pull/1983 geos-chem PR #1983]


|-valign="top"
|-valign="top"
|DMS Chemistry
|Australian emissions
|Linia Tashmim (UC Riverside)<br>William Porter (UC Riverside)
|Stephen MacFarlane/Jenny Fisher (UWollongong)
|Chemistry
|Emissions
|Not delivered
|Not delivered
|
|


|-valign="top"
|-valign="top"
|Organic acids (RCOOH)
|Geogenic emissions (volcanic, rock weathering)
|Katie Travis (NASA)
|Eric Roy (MIT)
|Chemistry
|Emissions
|Not delivered
|Not delivered
|
|


|-valign="top"
|-valign="top"
|Improve carbon & nitrogen conservation in reactions
|Biomass burning - FINN2.5 & GFED4
|Kelvin Bates (Harvard)
|Eric Roy (MIT)
|Chemistry
|Emissions
|Not delivered
|Not delivered
|
|


|-valign="top"
|-valign="top"
|Blowing snow sea salt in TOMAS
|BCC-GC online
|Betty Croft (Dalhousie)
|Lin Zhang (PKU)
|Aerosols
|External Model
|Not delivered
|Not delivered
|
|


|-valign="top"
|-valign="top"
|[https://pubs.rsc.org/en/content/articlelanding/2022/EM/D2EM00019A Australian anthropogenic Hg emissions]
|GC-YIBS with online fire emissions
|Stephen MacFarlane (UOW)<br>Jenny Fisher (UOW)<br> Hannah Horowitz (U. Illinois)<br>Viral Shah (Harvard)
|Xu Yue; Hong Liao; Xu Yue (NUIST)
|Hg simulation
|External Model
|Not delivered
|Not delivered
|
|


|-valign="top"
|-valign="top"
|WRF-GC Hg simulation
|GISS-GC offline (GCAP)
|Xiaotian Xu (Nanjing U.)<br>Yanxu Zhang (Nanjing U.)
|Lee Murray (Rochester)
|Hg simulation<br>WRF-GC
|GCAP
|Not delivered
|Not delivered
|
|


|-valign="top"
|-valign="top"
|Updated HgII gas-partical partitioning
|Archived TCR-2 OH fields for carbon simulations
|Kaiyun Liu (Tsinghua U.)<br>Qingru Wu (Tsinghua U.)<br>Shuxiao Wang (Tsinghua U.)
|Kazu Miyazaki (JPL)
|Hg simulation
|Input data
|Not delivered
|Not delivered
|
|
*Should be option, not default


|-valign="top"
|-valign="top"
|Dry deposition to F90 (readability)
|GOOPy (General Observation Operator in Python): for processing satellite and model output to produce column fields using averaging kernels
|Chris Holmes (FSU)
|Hannah Nesser (JPL) , Elise Penn (Harvard)
|Dry deposition
|Tools
|Not delivered
|Not delivered
|
|
* Could be added into GCPy as a Git submodule


|}
|}
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!width="100px"|Model scope
!width="100px"|Model scope
!width="420px"|Notes and References
!width="420px"|Notes and References
|-valign="top"
|Capture all trop and PBL height changes in budget diagnostics
|Chris Holmes (FSU)<br>Lizzie Lundgren (Harvard)
|Diagnostics
|
*[https://github.com/geoschem/geos-chem/pull/2103 geos-chem PR 2103]
|-valign="top"
|Dust non-sphericity impacts on optical properties
|Inderjeet Singh (WashU)
|Aerosols
|
|-valign="top"
|Fixes to stratospheric aerosol settling
|Connor Barker, Eloise Marais (UCL)
|Aerosols
|
|-valign="top"
|DMS chemistry in v14
|Linia Tashmim and Will Porter (UC Riverside)
|Chemistry
|
|-valign="top"
|KPP standalone + 3D Interface
|Obin Sturm (PSC)
|Chemistry
|
|-valign="top"
|Load balancing in chemistry solver (GCHP)
|Zhouran (Jordan) Sun (WashU)
|Chemistry +<br>Performance
|
|-valign="top"
|UCX chemistry in mesosphere (GCHP/GCClassic)
|Helena McDonald (MIT)
|Chemistry
|
|-valign="top"
|Updated aromatic oxidation
|Stephen MacFarlane/Jenny Fisher (University of Wollongong)
|Chemistry
|


|-valign="top"
|-valign="top"
|Replace ISORROPIA with [https://gmd.copernicus.org/preprints/gmd-2023-159/gmd-2023-159.pdf HTEPv1.0]
|MCO3 uptake by cloud forming MP; leading to lower PAN
|Seb Eastham (MIT)<br>Lizzie Lundgren (Harvard)
|Laura Yang (Harvard)
|Aerosol thermodynamics
|Chemistry
|
|
*Will be git submodule


|-valign="top"
|-valign="top"
|PPN+hv, PPN+OH
|Implement isotope simulation for CH4 in the carbon simulation
|Robert Ryan (UCL)
|Lee Murray (Rochester)
|Chemistry
|Chemistry
|
|


|-valign="top"
|-valign="top"
|MBO
|Active mesospheric chemistry
|Michael Vermeuel (UMN)
|Helena McDonald (MIT), Seb Eastham (IC)
|Chemistry
|Chemistry
|
|


|-valign="top"
|-valign="top"
|[https://github.com/geoschem/geos-chem/issues/1094 Stratospheric adjustment with RRTMG in GEOS-Chem]
|Documentation for adding additional aerosol species
|Seb Eastham (MIT)
|Connor Barker (UCL)
|Science
|Documentation
|
 
|-valign="top"
|Column diagnostics
|Lizzie Lundgren (Harvard), Viral Shah (GMAO)
|Diagnostics
|
|


|-valign="top"
|-valign="top"
|Initial conditions for CH4 correcting background and stratospheric biases
|TOMAS rate diagnostics -- improve performance
|Todd Mooring (Harvard)
|Betty Croft (WashU/Dal)
|Methane simulation
|Diagnostics +<br>Performance
|
 
|-valign="top"
|Fix obspack - not working in 14.4.0
|Bob Yantosca (Harvard)
|Diagnostics
|
|


|-valign="top"
|-valign="top"
|Migrating simple SOA formation from carbon_mod.F90 into the KPP "full-chemistry" mechanism
|Archive gamma values from heterogeneous chemistry
|Bob Yantosca (Harvard)
|Bob Yantosca (Harvard)
|Aerosols<br>Structural
|Diagnostics
|
|
*Ongoing


|-valign="top"
|-valign="top"
|Re-binning of off-line sea salt and dust for use in TOMAS
|RRTMG Documentation
|Betty Croft (Dalhousie)
|GCST
|Aerosols
|Documentation
|
 
|-valign="top"
|Canopy Physics Model
|Sam Silva (MIT)
|Dry Deposition
|
|


|-valign="top"
|-valign="top"
|Adaption of TOMAS' in-cloud aqueous sulfate production for KPP versus sulfate_mod.F90
|Dry deposition diagnostics by land cover
|Betty Croft (Dalhousie)
|Holly Nowell, Chris Holmes (FSU)
|Aerosols
|Dry Deposition
|
|


|-valign="top"
|-valign="top"
|ML algorithms for bulk aerosols
|Dry deposition process diagnostics
|Arshad Nair (SUNY Albany)<br>Fangqun Yu (SUNY Albany)
|Holly Nowell, Chris Holmes (FSU)
|Aerosols
|Dry Deposition
|
|


|-valign="top"
|-valign="top"
|PM2.5 and PM10 calculations: aerodynamic vs geometric diameters
|Biomass burning for TOMAS
|Shixian Zhai (Harvard)
|Nicole June (CSU)
|Aerosols
|Emissions +<br>Microphysics
|
|


|-valign="top"
|-valign="top"
|Updates to Hodzic SOA scheme
|Historic biomass burning ()
|Jared Brewer (Harvard)
|Pengfei (Gtech)
|Aerosols
|Emissions
|
|


|-valign="top"
|-valign="top"
|Automated reduction in isoprene scheme
|Rice methane
|Dan Westervelt (Lamont-Doherty)
|Zichong Cheng (Harvard)
|Aerosols
|Emissions
|
|


|-valign="top"
|-valign="top"
|Brown carbon chemsitry
|Fire and anthropogenic emissions not currently turned on (monoterpenes, 1-butadiene etc.)
|Jingqiu Mao (U. Alaska)<br>Xuan Wang (CUHK)
|Katie Travis / Kelvin Bates
|Aerosols
|Emissions
|
|


|-valign="top"
|-valign="top"
|GEOS resolution and subgrid convection - Part 2 RAS parameter tuning
|Updated bottom-up global CH4 oil, gas, and coal emissions (GFEI v3)
|Tailong He (Toronto)<br>Dylan Jones (Toronto)<br>Andrea Molod (NASA GMAO)
|Melissa Sulprizio (Harvard), Tia Scarpelli (Carbon MAPPER)
|Convection
|Emissions
|
|


|-valign="top"
|-valign="top"
|High-res top-down TROPOMI-derived seasonal mean NOx emissions for China
|New prior biospheric fluxes from CMS-FLUX and GMAO
|Jintai Lin (PKU)
|Kevin Bowman (JPL), Lesley Ott (GMAO)
|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
|Snowpack Br2 emission
|Tess Carter (MIT)
|Chris Holmes (FSU)
|Emissions
|Emissions
|
|


|-valign="top"
|-valign="top"
|Updated offline sea salt emissions
|EDGAR v8.1_toxHg emissions for 1970-2022
|Hongjian Weng (PKU) <br> Jintai Lin (PKU)
|Eric Roy (MIT)
|Emissions
|Emissions
|
|


|-valign="top"
|-valign="top"
|[https://gmd.copernicus.org/articles/13/2569/2020/ Canopy Physics Model]
|Improve pressure handling in GCHP advection
|Sam Silva (MIT)
|Yuanjian Zhang (WashU), Seb Eastham (ICL)
|Emissions &<br>Science
|GCHP
|
|
*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"
|Assessment/improvement of OpenMP performance in GC-Classic and HEMCO standalone
|Add error trap for duplicate scale factors in HEMCO
|Bob Yantosca (Harvard)
|Bob Yantosca (Harvard)
|Model performance
|HEMCO
|
 
|-valign="top"
|Fix pressure handling in HEMCO standalone
|Melissa Sulprizio (Harvard)
|HEMCO
|
 
|-valign="top"
|Integration testing: Add stretched grid
|Lizzie Lundgren (Harvard)
|Quality Assurance
|
 
|-valign="top"
|Integration testing: Add GCAP2
|GCST
|Quality Assurance
|
 
|-valign="top"
|Integration testing: Add GCHP mass flux run
|Lizzie Lundgren (Harvard)
|Quality Assurance
|
 
|-valign="top"
|Integration testing: Add run with all diagnostics turned on
|GCST
|Quality Assurance
|
|
*Ongoing (will be done as time allows)


|-valign="top"
|-valign="top"
|Retire all BPCH diagnostics
|Integration testing: Reinstate TOMAS40
|Bob Yantosca (Harvard)
|Betty Croft (Dalhousie/WashU)
|Diagnostics
|Quality Assurance
|
|
*Can be done following the [https://github.com/geoschem/geos-chem/pull/1569 TOMAS update for GCHP]


|-valign="top"
|-valign="top"
|Assess memory leak in GCHP
|Strat-adjusted RF in GCC and GCHP
|Killian Murphy (York)
|Connor Barker, Eloise Marais (UCL)
|Model performance
|Radiation
|
|
*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
|Continue cleanup of C-preprocessor switches
|Seb Eastham (MIT)<br>Killian Murphy (York)
|Lizzie Lundgren (Harvard)
|Model performance
|Structural
|
|


|-valign="top"
|-valign="top"
|Improve run directory templating and creation with init_rd.sh and shared directories
|updates to Luo deposition scheme
|Jourdan He (WashU)
|Gan Luo
|Run directories
|Wet Deposition
|
|


|-valign="top"
|-valign="top"
|Table of CTM and online GCM properties: GCHP, GCC, GEOS-CTM, GC-Nested, online GEOS, GEOS-replay, etc
|Testing the use of a new scavenging parameterization developed by Luo and Yu for cold cloud with Pb-210 aerosol tracer
|GCST?
|Gan Luo (Albany), Fangqun Yu (Albany)
|Documentation
|Wet Deposition
|
|


Line 496: Line 597:


|-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 and Fangqun Yu (SUNY Albany)
|Chemistry
|Aerosols
|
|


|-valign="top"
|-valign="top"
|Monoterpene oxidation scheme
|Heterogeneous sulfate chemistry
|Jessica Haskins (MIT)
|Katie Travis
|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 (IC)
|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"
|Dust non-sphericity impacts on surface chem and optical properties
|VCPs emissions
|Inderjeet Singh (WashU)
|Kelvin Bates (CU Boulder)
|Aerosols
|Emissions
|
|


|-valign="top"
|-valign="top"
|Size-resolved stratospheric aerosol
|Mesospheric source of CO
|Seb Eastham (MIT)
|Dylan Jones (UofT), Pam Wales (GSFC)
|Aerosols
|Emissions
|
|


|-valign="top"
|-valign="top"
|Extend aerosol settling
|Drought-stress algorithm
|Eloise Marais (UCL)
|Wei Li (U. Houston)
|Aerosols
|Emissions
|
|


|-valign="top"
|-valign="top"
|Stratospheric aerosol APM
|Physically-based resolution correction for BVOC emissions using MEGAN
|Fangqun Yu (SUNY)
|May Fu (SUSTech)
|Aerosols
|Emissions
|
|


|-valign="top"
|-valign="top"
|Plume-in-grid model
|Canadian forest fire prediction system (Canada government forecast model)
|Hongwei Sun (Harvard)
|Robin (Montreal)
|Chemistry
|Emissions
|
|


|-valign="top"
|-valign="top"
|Updated lightning NOx: Prescribe from ground and geostationary lightning flashes
|Furan emission factors (updates existing emissions)
|Lee Murray (Rochester)
|Lu Hu/Lixu Jin (Montana)
|Emissions
|Emissions
|
|


|-valign="top"
|-valign="top"
|Seb aircraft emissions beyond recent 2019 update
|Cooking emissions (not biofuel)
|Seb Eastham (MIT)
|Kelvin Bates (CU Boulder)
|Emissions
|Emissions
|
|


|-valign="top"
|-valign="top"
|FRP-based fire emsisions for eastern US at 0.2 deg
|State-specific annual emissions scaling factors (US) (1990-2021)
|Charlie Fite (FSU)
|Ishir Dutta (MIT)
|Emissions
|Emissions
|
|


|-valign="top"
|-valign="top"
|Hg iodine chemistry
|GISS-GC online
|Yiming Fu<br>Yanxu Zhang (Nanjing U.)
|Lee Murray (Rochester)
|External model
|
 
 
 
|-valign="top"
|Hybrid MPI-OpenMP in GCHP
|Seb Eastham (MIT); Killian Murphy (York); Lizzie Lundgren (Harvard)
|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/Jenny Fisher (University of Wollongong)
|Chemistry
|
 
|-valign="top"
|DMS updates
|Will Porter (UCR)
|Chemistry
|
 
|-valign="top"
|Furans emission and chemistry
|Lixu Jin/Lu Hu(U Montana)
|Chemistry + <br>Emissions
|
 
|-valign="top"
|Cl2 prodcution from Fe aerosol Qianjie Chen
|(Hong Kong Poly)/Becky Alexander (UW)
|Chemistry
|
 
|-valign="top"
|VCP, cooking: tracers species added i.e., D5, ethanol affecting PAN
|Kevin Bates (CU Boulder)
|Emissions
|
 
|-valign="top"
|bidirectional land-atmosphere exchange for Hg
|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"
|CESM2-GC offline
|Seb Eastham (ICL); Lee Murray (Rochester)
|Met fields
|
 
|-valign="top"
|Re-binning of off-line sea salt and dust for TOMAS
|Betty Croft (Dalhousie)
|Microphysics
|
 
|-valign="top"
|TOMAS nucleation updates
|Sam O'Donnell (CSU)
|Microphysics
|
|


|-valign="top"
|-valign="top"
|Update Hg ocean and soil boundary conditions for consistency with new chemistry
|Stratospheric aerosol APM
|Yanxu Zhang (Nanjing U.)
|Fangqun Yu (SUNY Albany)
|Hg simulation
|Microphysics
|
|


|-valign="top"
|-valign="top"
|Dry deposition diagnostics by land cover
|Transition from MERRA-2 to GEOS-IT for benchmarking
|Holly Nowell (FSU)
|Yuanjian Zhang (WashU)
|Diagnostics
|Quality Assurance
|
|


|-valign="top"
|-valign="top"
|Dry deposition process diagnostics
|Automate integration testing on AWS
|Holly Nowell (FSU)
|Yidan Tang (WashU)
|Diagnostics
|Quality Assurance
|
|


|-valign="top"
|-valign="top"
|Isotope simulation for CO and CH4 in GCHP
|Integration testing: Add across end of year run
|Lee Murray (Rochester)
|GCST
|Carbon simulation
|Quality Assurance
|
|


|-valign="top"
|-valign="top"
|Updated bottom-up global CH4 oil, gas, and coal emissions (GFEI v3)
|Integration testing: Add GEOS-IT
|Melissa Sulprizio (Harvard)<br>Tia Scarpelli (U. Edinburgh)<br>Zichong Chen (Harvard)
|Yuanjian Zhang (WashU)
|Emissions<br>CH4 simulation
|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); 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
|
|


Line 659: Line 859:


|-valign="top"
|-valign="top"
|Updates to Aromatic chemistry
|Modal aerosol model (MAM7) in GCHP
|Stephen MacFarlane (UOW)<br>Jenny Fisher (UOW)
|Shreya Sharma (MIT)
|Aerosols
|
 
|-valign="top"
|Online OCIM ocean biogeochemistry
|Lee Murray (Rochester); Hannah Horowitz (UIUC); 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"
|Continental chloride particle emissions (salty dust, road salt)
|Jessica Haskins (Utah)
|Emissions
|
 
|-valign="top"
|Multivolatility emission inventory to address gaps in EDGAR/HTAP etc.
|Ruochong (Tshingua)
|Emissions
|
 
|-valign="top"
|Lightning NOx production rates
|Bex Horner (UCL)
|Emissions
|
|


|-valign="top"
|-valign="top"
|Benchmark box model of GC Chemistry
|HFO and CF3CHO
|Katie Travis (NASA)
|Beth Killen/Jenny Fisher (University of Wollongong)
|Chemistry
|Chemistry
|
|


|-valign="top"
|-valign="top"
|Alkyl nitrates Alk7, PHAN
|Glyoxal updates from isoprene
|Katie Travis (NASA)
|Tzung-May Fu (SUSTech)
|Chemistry
|Chemistry
|
|


|-valign="top"
|-valign="top"
|Add stratospheric ozone species to full-chemistry simulations
|Iodine chemistry
|Lee Murray (Rochester)
|Becky Alexander (UW)/Xuan Wang (cityU HK)
|Chemistry
|Chemistry
|
|


|-valign="top"
|-valign="top"
|Perchlorate chemistry
|Chlorine/Perchlorate
|Yuk Chun Chan (UWAB)
|Yukchun Chan (UW)
|Chemistry
|Chemistry
|
|


|-valign="top"
|-valign="top"
|Explicit heterogeneous sulfate chemistry
|Playa dust chemistry to improve Cl over land
|Katie Travis (NASA)<br>Becky Alexander (UT)
|Jessica Haskins (Utah)
|Chemistry
|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)/Ari Feinberg (IQF-CSIC)
|Emissions
|Hg simulation
|
 
|-valign="top"
|Soil Hg emissions 2010-2020
|Eric Roy (MIT)/Ari Feinberg (IQF-CSIC)
|Hg simulation
|
 
|-valign="top"
|Air-sea exchange parameterization
|Eric Roy (MIT)
|Hg simulation
|
 
|-valign="top"
|Soil Hg emissions parameterization
|Ari Feinberg (IQF-CSIC)
|Hg simulation
|
|


|-valign="top"
|-valign="top"
|Drought-stress algorithm
|Sea salt uptake of GOM
|Wei Li (U. Houston)
|Eric Roy (MIT)
|Hg simulation
|
|
|-valign="top"
|Photoreduction rate constant
|Eric Roy (MIT)
|Hg simulation
|
|


|-valign="top"
|-valign="top"
|Biomass burning injection height profiles
|new observations (2010-2020) in standardized Hg benchmark for intercomparison
|Inderjeet Singh (WashU)
|Eric Roy (MIT)/Ari Feinberg (IQF-CSIC)
|Emissions
|Hg simulation
|
|


|-valign="top"
|-valign="top"
|OCIM integration
|Hg simulation in GCHP
|Chris Holmes (FSU)<br>Lee Murray (Rochester)
|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"
|-valign="top"
|Updating landcover products in GEOS-Chem
|possibly updating Hg oxidation chemistry based on Utah field campaigns
|Chris Holmes (FSU)<br>Jeff Geddes (BU)
|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"
|Global emission inventory of metals
|Tzung-May Fu (SUSTech); He Zhong Tian (Peking Normal U)
|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
|
 
|-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"
|-valign="top"
|TOMAS WRF-GC in regional Thailand simulation
|Comparing mass fluxes in GCHP vs. traditional lat/lon wind
|Win Trivitayanurak (Chulalongkorn U)
|Yuanjian Zhang (WashU), Seb Eastham (ICL)
|Aerosols
|Transport
|
|


|}
|}

Revision as of 14:19, 25 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
Horizontal flux regridding fix in MAPL Tom Clune (GMAO) GCHP Medium
Cloud-J 7.7.2 for greater flexibility in external models Lizzie Lundgren (Harvard) Photolysis Medium
GCHP run directory improvements for mass flux, stretched grid, and GEOS-IT runs Lizzie Lundgren (Harvard) GCHP Medium
Fixes for GEOS-Chem 14.4 in CESM Haipeng Lin (Harvard)
Lizzie Lundgren (Harvard) 		CESM 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
New version of CEDS at 0.1 deg Dandan Zhang (WashU) Emissions Simple Delivered June 2024
Remove differences in GC-Classic due to HEMCO reading REAL8 restart as REAL4 Lizzie Lundgren (Harvard) GC-Classic Medium

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 and 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 (UIUC) Aerosols Not delivered
P/L species should not contribute to the error norm Obin Sturm (PSC) Chemistry Not delivered
Additional 6 peroxynitrates (many PANs like species); improve ALK4 & add ALK6 Katherine Travis (NASA LARC) Chemistry Not delivered
Monoterpene oxdation more species & oxdiation products Kevin Bates (CU Boulder) Chemistry Not delivered
PPN photolysis Eloise Marais (University College London) Chemistry Not delivered
global orgainc N dep from various emissions; nitrate aromatics updates Tzung-May Fu (SUSTech) Chemistry +
Deposition 		Not delivered
adaptive chemistry (domain-specific) in WRF-GC Tzung-May Fu (SUSTech) Chemistry Not delivered
Alk4 from biogenic vs anthro Jared Brewer (UMN) Chemistry Not delivered
Dry deposition to F90 (readability) Chris Holmes (FSU) Dry Deposition Not delivered
Ecophysiology module in GEOS-Chem for biosphere-atmosphere exchange Joey Lam, Amos Tai (CUHK) Dry deposition Not delivered
FRP-based fire emissions for eastern US at 0.2 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
Rasterized shapefiles high-resolution for oil and gas infrastructure in North America Lee Murray (Rochester) Emissions Not delivered
New soil NOx parameterization Yi Wang (U. Iowa), Jun Wang (U. Iowa) Emissions Not delivered
New source functions for transport tracers beryllium-7 and beryllium-10 Minjie Zheng (ETH) Emissions Not delivered
LPJ land cover (global), fire (W US), dust emissions (SW N America), 1700-2100 Yang Li (Baylor University), Loretta Mickley (Harvard) Emissions Not delivered
Australian emissions Stephen MacFarlane/Jenny Fisher (UWollongong) Emissions Not delivered
Geogenic emissions (volcanic, rock weathering) Eric Roy (MIT) Emissions Not delivered
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; Hong Liao; Xu Yue (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
GOOPy (General Observation Operator in Python): for processing satellite and model output to produce column fields using averaging kernels Hannah Nesser (JPL) , Elise Penn (Harvard) Tools Not delivered
  • Could be added into GCPy as a Git submodule

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


Capture all trop and PBL height changes in budget diagnostics Chris Holmes (FSU)
Lizzie Lundgren (Harvard) 		Diagnostics
Dust non-sphericity impacts on optical properties Inderjeet Singh (WashU) Aerosols
Fixes to stratospheric aerosol settling Connor Barker, Eloise Marais (UCL) Aerosols
DMS chemistry in v14 Linia Tashmim and Will Porter (UC Riverside) Chemistry
KPP standalone + 3D Interface Obin Sturm (PSC) Chemistry
Load balancing in chemistry solver (GCHP) Zhouran (Jordan) Sun (WashU) Chemistry +
Performance
UCX chemistry in mesosphere (GCHP/GCClassic) Helena McDonald (MIT) Chemistry
Updated aromatic oxidation Stephen MacFarlane/Jenny Fisher (University of 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
Active mesospheric chemistry Helena McDonald (MIT), Seb Eastham (IC) Chemistry
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
Fix obspack - not working in 14.4.0 Bob Yantosca (Harvard) Diagnostics
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, Chris Holmes (FSU) Dry Deposition
Dry deposition process diagnostics Holly Nowell, Chris Holmes (FSU) Dry Deposition
Biomass burning for TOMAS Nicole June (CSU) Emissions +
Microphysics
Historic biomass burning () Pengfei (Gtech) Emissions
Rice methane Zichong Cheng (Harvard) Emissions
Fire and anthropogenic emissions not currently turned on (monoterpenes, 1-butadiene etc.) Katie Travis / Kelvin Bates Emissions
Updated bottom-up global CH4 oil, gas, and coal emissions (GFEI v3) Melissa Sulprizio (Harvard), Tia Scarpelli (Carbon MAPPER) Emissions
New prior biospheric fluxes from CMS-FLUX and GMAO Kevin Bowman (JPL), Lesley Ott (GMAO) Emissions
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
Fix pressure handling in HEMCO standalone Melissa Sulprizio (Harvard) HEMCO
Integration testing: Add stretched grid Lizzie Lundgren (Harvard) Quality Assurance
Integration testing: Add GCAP2 GCST 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, Eloise Marais (UCL) Radiation
Continue cleanup of C-preprocessor switches Lizzie Lundgren (Harvard) Structural
updates to Luo deposition scheme Gan Luo Wet Deposition
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 and Fangqun Yu (SUNY Albany) Aerosols


Heterogeneous sulfate chemistry Katie Travis Chemistry
H2 as an active species Seb Eastham (IC) Chemistry
HCN, acetonitrile as fire tracers Kevin Bates (CU Boulder) Chemistry
Implement ethane in carbon simulation Yuzhong Zhang (Westlake) Chemistry



VCPs emissions Kelvin Bates (CU Boulder) Emissions
Mesospheric source of CO Dylan Jones (UofT), Pam Wales (GSFC) Emissions
Drought-stress algorithm Wei Li (U. 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 (Montreal) Emissions
Furan emission factors (updates existing emissions) Lu Hu/Lixu Jin (Montana) 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/Jenny Fisher (University of Wollongong) Chemistry
DMS updates Will Porter (UCR) Chemistry
Furans emission and chemistry Lixu Jin/Lu Hu(U Montana) Chemistry +
Emissions
Cl2 prodcution from Fe aerosol Qianjie Chen (Hong Kong Poly)/Becky Alexander (UW) Chemistry
VCP, cooking: tracers species added i.e., D5, ethanol affecting PAN 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

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/Jenny Fisher (University of Wollongong) Chemistry
Glyoxal updates from isoprene Tzung-May Fu (SUSTech) Chemistry
Iodine chemistry Becky Alexander (UW)/Xuan Wang (cityU HK) Chemistry
Chlorine/Perchlorate Yukchun Chan (UW) Chemistry
Playa dust chemistry to improve Cl over land Jessica Haskins (Utah) 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
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