Difference between revisions of "GEOS-Chem model development priorities"

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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]].
+
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''']].
  
 
== Merged and awaiting release ==
 
== Merged and awaiting release ==
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|-valign="top"
 
|-valign="top"
 
|align="center"|'''[[GEOS-Chem no-diff-to-benchmark]]'''
 
|align="center"|'''[[GEOS-Chem no-diff-to-benchmark]]'''
−
|align="center"|'''[[GEOS-Chem 14.4.0]]'''
+
|align="center"|'''[[GEOS-Chem 14.5.0]]'''
  
 
|}
 
|}
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|-valign="top"
 
|-valign="top"
−
|KORUS-AQ emissions for East Asia (as an option)
+
|New version of CEDS at 0.1 deg
−
|Katie Travis (NASA)
+
|Dandan Zhang (WashU)
 
|Emissions
 
|Emissions
 
|Simple
 
|Simple
 
|
 
|
 +
*[https://github.com/geoschem/geos-chem/pull/2171 geos-chem PR #2171]
  
 
|-valign="top"
 
|-valign="top"
−
|[https://doi.org/10.7910/DVN/23BRII Global continental chlorine (pCl and HCl) emissions]
+
|Use USTAR read from GEOS instead of calculating from U10M and V10M
−
|Bingqing Zhang (Georgia Tech)<br>Pengfei Liu (Georgia Tech)
+
|Yuanjian Zhang (WashU)
 
|Emissions
 
|Emissions
 
|Simple
 
|Simple
 
|
 
|
 +
*[https://github.com/geoschem/HEMCO/pull/279 HEMCO PR #279]
 +
*NOTE: WashU will recompute mass tuning factors for each met field & resolution (GCClassic)
  
 
|-valign="top"
 
|-valign="top"
−
|New version of CEDS at 0.1 deg
+
|Ongoing carbon simulation fixes in GCClassic and GCHP
−
|Dandan Zhang (WashU)
+
|GCST
−
|Emissions
+
|Carbon simulation
−
|Simple
+
−
|
+
−
*[https://github.com/geoschem/geos-chem/issues/1745 geos-chem issue #1745]
+
−
*'''Currently on hold while an issue with seasonality in the new CEDS data is being investigated'''
+
−
 
+
−
|-valign="top"
+
−
|[https://github.com/geoschem/geos-chem/issues/1288 New soil NOx parameterization]
+
−
|Yi Wang (U. Iowa)<br>Jun Wang (U. Iowa)
+
−
|Emissions
+
 
|Medium
 
|Medium
 
|
 
|
−
*[https://github.com/geoschem/geos-chem/issues/1288 geos-chem issue #1288]
+
*[https://github.com/geoschem/GCHP/issues/440 GCHP issue #440]
−
*Incorporates new met field TSOIL1
+
*[https://github.com/geoschem/geos-chem/issues/2463 geos-chem issue #2463]
 +
*[https://github.com/geoschem/geos-chem/pull/2510 geos-chem PR #2510]
  
 
|-valign="top"
 
|-valign="top"
−
|Remove differences in GC-Classic due to HEMCO reading REAL8 restart as REAL4
+
|Investigate potential performance gains of replacing the KPP Rosenbrock solver with the LSODE solver
−
|Lizzie Lundgren (Harvard)
+
|Bob Yantosca (Harvard)
−
|GC-Classic
+
|Chemistry
 
|Medium
 
|Medium
 
|
 
|
−
*[https://github.com/geoschem/HEMCO/issues/18 hemco issue #18]
+
*[https://github.com/geoschem/geos-chem/pull/2482 geos-chem PR #2482]
 +
*[https://github.com/geoschem/geos-chem/pull/2483 geos-chem PR #2483]
  
 
|-valign="top"
 
|-valign="top"
−
|Replace ISORROPIA with [https://gmd.copernicus.org/articles/17/2197/2024/ HETPv1.0]
+
|Fix obspack - not working in 14.4.0
−
|Lizzie Lundgren (Harvard)<br>Seb Eastham (ICL)
+
|Bob Yantosca (Harvard)
−
|Aerosol thermodynamics
+
|Diagnostics
 
|Medium
 
|Medium
 
|
 
|
−
*[https://github.com/geoschem/geos-chem/issues/2235 geos-chem issue #2235]
+
*[https://github.com/geoschem/geos-chem/issues/2328 geos-chem issue #2328]
  
 
|-valign="top"
 
|-valign="top"
−
|Only convert units for species that need it
+
|Make GC-Classic bit-for-bit reproducible upon restart<br>(part 1 of 2)
−
|Bob Yantosca (Harvard)
+
|Lizzie Lundgren (Harvard)
−
|Unit conversions
+
|GC-Classic
 
|Medium
 
|Medium
 
|
 
|
−
*[https://github.com/geoschem/geos-chem/pull/2072 geos-chem PR #2072]
+
*[https://github.com/geoschem/geos-chem/pull/2521 geos-chem PR #2521]
−
*'''This update breaks TOMAS, further development is needed'''
+
  
 
|-valign="top"
 
|-valign="top"
Line 92: Line 87:
 
|
 
|
 
*[https://github.com/geoschem/geos-chem/pull/2103 geos-chem PR 2103]
 
*[https://github.com/geoschem/geos-chem/pull/2103 geos-chem PR 2103]
 +
 +
|-valign="top"
 +
|Derive convective precipitation flux if using FP/IT generated with Grell-Freitas
 +
|Yuanjian Zhang (WashU)<br>Viral Shah (GMAO)<br>Lizzie Lundgren (Harvard)
 +
|Convection
 +
|Medium
 +
|
 +
*[https://github.com/geoschem/geos-chem/issues/2469 geos-chem Issue #2469]
 +
*[https://github.com/geoschem/geos-chem/pull/2523 geos-chem PR #2523]
  
 
|}
 
|}
Line 109: Line 113:
  
 
|-valign="top"
 
|-valign="top"
−
|[https://github.com/geoschem/geos-chem/issues/1867 Online H2 chemistry]
+
|Retire CH4, CO2, tagCO simulations in favor of carbon simulation
−
|Maria Paula Pérez-Peña (UNSW)<br>Jenny Fisher (UOW)<br>Dylan Millet (UMN)
+
|Melissa Sulprizio (Harvard)
−
|Chemistry
+
|Carbon gases
−
|TBD
+
|Simple
−
|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
+
*[https://github.com/geoschem/geos-chem/issues/2387 geos-chem issue #2387]
  
 
|-valign="top"
 
|-valign="top"
−
|ALK4 & R4N2 chemistry
+
|Correct the issue that injection height has been artificially decreased by HEMCO
−
|Jared Brewer (UMN)
+
|Lixu Jun (Montana)
−
|Chemistry
+
|Emissions
−
|TBD
+
|Simple
−
|Not delivered
+
|Delivered<br>June 2024
 
|
 
|
−
*[https://github.com/geoschem/geos-chem/issues/1625 geos-chem issue #1625]
+
*[https://github.com/geoschem/geos-chem/issues/2330 geos-chem issue #2330]
−
*[https://acmg.seas.harvard.edu/files/acmg/files/brewer2022.pdf Brewer, J.F. et al., J. Geophys. Res., submitted 2023.]
+
*[https://github.com/geoschem/geos-chem/pull/2358 geos-chem PR #2358]
  
 
|-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]
+
|Capability to run GCClassic at 0.125x0.15625 resolution
−
|Yanshun Li (WashU)
+
|Melissa Sulprizio (Harvard)<br>Xiaolin Wang (Harvard)
−
|Aerosols
+
|Nested grid
 
|Simple
 
|Simple
−
|Delivered<br>Oct 2023
+
|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/1980 geos-chem PR #1980]
−
*[https://github.com/geoschem/geos-chem/pull/1983 geos-chem PR #1983]
+
*[https://github.com/geoschem/HEMCO/pull/290 HEMCO PR #290]
−
* '''Waiting on code updates from developer'''
+
  
 
|-valign="top"
 
|-valign="top"
−
|Mass flux regridding fix in MAPL
+
|Strat-adjusted RF in GCC and GCHP
−
|Tom Clune (GMAO)<br>Seb Eastham (MIT)
+
|Connor Barker (UCL)<br>Eloise Marais (UCL)
−
|GCHP input regridding
+
|Radiation
−
|Medium
+
|Simple
 +
|Delivered
 
|
 
|
 +
*[https://github.com/geoschem/geos-chem/pull/2525 geos-chem PR #2525]
 +
 +
|-valign="top"
 +
|Archived TCR-2 OH fields for carbon simulations
 +
|Kazu Miyazaki (JPL)<br>Melissa Sulprizio (Harvard)
 +
|Input data
 +
|Simple
 +
|Data delivered<br>Oct 2024
 
|
 
|
−
*[https://github.com/geoschem/GCHP/issues/377 GCHP Issue #377]
+
*This will be the default OH, but users will have the option of selecting other OH fields
−
*'''Currently on hold, as the submitted update results in zero diff'''
+
*[https://github.com/geoschem/geos-chem/issues/2537 geos-chem issue #2537]
  
 
|-valign="top"
 
|-valign="top"
−
|[https://github.com/geoschem/geos-chem/issues/1747 Parameterization of SNA and OM dry size]
+
|Dust non-sphericity impacts on optical properties
−
|Haihui Zhu (WashU)
+
|Inderjeet Singh (WashU)
 
|Aerosols
 
|Aerosols
 
|Medium
 
|Medium
−
|Delivered<br>Aug 2023
+
|Not yet delivered
 
|
 
|
−
*[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]
 
−
*'''Currently on hold, as this update requires further modifications in the Cloud-J repository'''
 
  
 
|}
 
|}
Line 172: Line 180:
 
!width="100px"|Model scope
 
!width="100px"|Model scope
 
!width="100px"|Delivery status
 
!width="100px"|Delivery status
−
!width="300px"|Notes and References
+
!width="300px"|Notes and Refereneces
 +
 
  
 
|-valign="top"
 
|-valign="top"
−
|Geologic emission of ethane and propane
+
|Binary Activity Thermodynamic (BAT) model for non-ideal mixing of water and organics in organic aerosol
−
|Matthew Rowlinson and Mat Evans(York)
+
|Camilo Serrano (McGill)<br>Andreas Zuend (McGill)
−
|Emissions
+
|Aerosols
−
|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
+
*[https://github.com/geoschem/geos-chem/issues/2392 geos-chem issue #2392]
  
 
|-valign="top"
 
|-valign="top"
−
|[https://github.com/geoschem/geos-chem/pull/629 Ecophysiology module in GEOS-Chem for biosphere-atmosphere exchange]
+
|Update UCX to include gravitational settling of aerosol species beyond just BCPI
−
|Joey Lam(CUHK)<br>Amos Tai (CUHK)
+
|Conor Barker (UCL)<br>Eloise Marais (UCL)
−
|Science
+
|Aerosols
 +
|Not delivered
 +
|
 +
 
 +
|-valign="top"
 +
|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)
 +
 
 +
|-valign="top"
 +
|Global organic N dep from various emissions; nitrate aromatics updates
 +
|May Fu (SUSTech)
 +
|Chemistry +<br>Deposition
 +
|Not delivered
 +
|
 +
 
 +
|-valign="top"
 +
|Dry deposition to F90 to improve readability
 +
|Chris Holmes (FSU)
 +
|Dry Deposition
 +
|Not delivered
 +
|
 +
*[https://github.com/geoschem/geos-chem/issues/2389 geos-chem issue #2389]
 +
 
 +
|-valign="top"
 +
|Ecophysiology module in GEOS-Chem for biosphere-atmosphere exchange
 +
|Joey Lam (CUHK)<br>Amos Tai (CUHK)
 +
|Dry deposition
 
|Delivered<br>Feb 2021
 
|Delivered<br>Feb 2021
 
|
 
|
Line 191: Line 230:
  
 
|-valign="top"
 
|-valign="top"
−
|LPJ land cover (global), fire (W US), dust emissions (SW N America), 1700-2100
+
|FRP-based fire emissions for eastern US at 0.2 (2019-2020)
−
|Yang Li (Baylor University)<br>Loretta Mickley (Harvard)
+
|Chris Holmes (FSU)
 
|Emissions
 
|Emissions
−
|Delivered<br>Jul 2021
+
|Not delivered
 
|
 
|
−
*Data involves many files- need to think about temporal frequency
+
*[https://github.com/geoschem/geos-chem/issues/2388 geos-chem issue #2388]
  
 
|-valign="top"
 
|-valign="top"
−
|[https://github.com/geoschem/geos-chem/issues/550 MEIC (China regional) for 2000-2017 at 0.5x0.625 deg]
+
|China agriculture NH3 emissions
−
|Shixian Zhai (Harvard)
+
|Amos Tai (CUHK)
 
|Emissions
 
|Emissions
−
|Delivered
+
|Not delivered
 
|
 
|
−
*Need permission from Qiang Zhang (Tsinghua U.) to distribute data
 
  
 
|-valign="top"
 
|-valign="top"
−
|DMS Chemistry
+
|T-dependent anthropogenic VOCs
−
|Linia Tashmim (UC Riverside)<br>William Porter (UC Riverside)
+
|May Fu (SUSTech)
−
|Chemistry
+
|Emissions
 
|Not delivered
 
|Not delivered
 
|
 
|
 +
*Option. Requires processing existing anthropogenic VOC emissions to generate offline emissions to read in. Parameterised for China.
  
 
|-valign="top"
 
|-valign="top"
−
|Organic acids (RCOOH)
+
|New source functions for transport tracers beryllium-7 and beryllium-10
−
|Katie Travis (NASA)
+
|Minjie Zheng (ETH)
−
|Chemistry
+
|Emissions
−
|Not delivered
+
|Delivered<br>June 2024
 
|
 
|
 +
*Available at https://zenodo.org/records/8372652
  
 
|-valign="top"
 
|-valign="top"
−
|Improve carbon & nitrogen conservation in reactions
+
|LPJ land cover (global), fire (W US), dust emissions (SW N America), 1700-2100
−
|Kelvin Bates (Harvard)
+
|Yang Li (Baylor U)<br>Loretta Mickley (Harvard)
−
|Chemistry
+
|Emissions
 +
|Delivered
 +
|
 +
*Data involves many files- need to think about temporal frequency
 +
 
 +
|-valign="top"
 +
|Australian Hg emissions (2000-2019)
 +
|Stephen MacFarlane (Wollongong)<br>Jenny Fisher (Wollongong)
 +
|Emissions
 
|Not delivered
 
|Not delivered
 
|
 
|
 +
*[https://pubs.rsc.org/en/content/articlelanding/2022/em/d2em00019a MacFarlane et al. (2024)]
 +
*Includes emissions from black and brown coal power plants, various metal production/processing sources (Aluminium, gold, copper, lead, etc), waste products, cement production, oil refining and petroleum, chlor alkali plants, and cremation
  
 
|-valign="top"
 
|-valign="top"
−
|Blowing snow sea salt in TOMAS
+
|Hg geogenic emissions (volcanic, rock weathering)
−
|Betty Croft (Dalhousie)
+
|Eric Roy (MIT)
−
|Aerosols
+
|Emissions
 
|Not delivered
 
|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]
+
|Hg biomass burning - FINN2.5 & GFED4
−
|Stephen MacFarlane (UOW)<br>Jenny Fisher (UOW)<br> Hannah Horowitz (U. Illinois)<br>Viral Shah (Harvard)
+
|Eric Roy (MIT)
−
|Hg simulation
+
|Emissions
 
|Not delivered
 
|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"
−
|WRF-GC Hg simulation
+
|BCC-GC online
−
|Xiaotian Xu (Nanjing U.)<br>Yanxu Zhang (Nanjing U.)
+
|Lin Zhang (PKU)
−
|Hg simulation<br>WRF-GC
+
|External Model
 
|Not delivered
 
|Not delivered
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Updated HgII gas-partical partitioning
+
|GC-YIBS with online fire emissions
−
|Kaiyun Liu (Tsinghua U.)<br>Qingru Wu (Tsinghua U.)<br>Shuxiao Wang (Tsinghua U.)
+
|Xu Yue (NUIST)<br>Hong Liao (NUIST)
−
|Hg simulation
+
|External Model
 
|Not delivered
 
|Not delivered
 
|
 
|
−
*Should be option, not default
 
  
 
|-valign="top"
 
|-valign="top"
−
|Dry deposition to F90 (readability)
+
|GISS-GC offline (GCAP)
−
|Chris Holmes (FSU)
+
|Lee Murray (Rochester)
−
|Dry deposition
+
|GCAP
 
|Not delivered
 
|Not delivered
 
|
 
|
Line 277: Line 330:
  
 
|-valign="top"
 
|-valign="top"
−
|Replace ISORROPIA with [https://gmd.copernicus.org/preprints/gmd-2023-159/gmd-2023-159.pdf HTEPv1.0]
+
|Fixes to stratospheric aerosol settling
−
|Seb Eastham (MIT)<br>Lizzie Lundgren (Harvard)
+
|Connor Barker (UCL)<br>Eloise Marais (UCL)
−
|Aerosol thermodynamics
+
|Aerosols
 
|
 
|
−
*Will be git submodule
 
  
 
|-valign="top"
 
|-valign="top"
−
|PPN+hv, PPN+OH
+
|DMS chemistry in v14
−
|Robert Ryan (UCL)
+
|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"
−
|Initial conditions for CH4 correcting background and stratospheric biases
+
|NO2+OH+H2O kinetics
−
|Todd Mooring (Harvard)
+
|Mat Evans (York)
−
|Methane simulation
+
|Chemistry
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Migrating simple SOA formation from carbon_mod.F90 into the KPP "full-chemistry" mechanism
+
|LSODES solver in KPP for faster kinetics
 +
|Haipeng Lin (Harvard)
 +
|Chemistry
 +
|
 +
 
 +
|-valign="top"
 +
|Load balancing in chemistry solver (GCHP)
 +
|Zhouran Sun (WashU)
 +
|Chemistry +<br>Performance
 +
|
 +
 
 +
|-valign="top"
 +
|Active chemistry in mesosphere for both GCHP and GCClassic
 +
|Helena McDonald (MIT)<br>Sebastian Eastham (ICL)
 +
|Chemistry
 +
|
 +
 
 +
|-valign="top"
 +
|Updated aromatic oxidation
 +
|Stephen MacFarlane (Wollongong)<br>Jenny Fisher (Wollongong)
 +
|Chemistry
 +
|
 +
 
 +
|-valign="top"
 +
|MCO3 uptake by cloud forming MP; leading to lower PAN
 +
|Laura Yang (Harvard)
 +
|Chemistry
 +
|
 +
 
 +
|-valign="top"
 +
|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
 +
 
 +
|-valign="top"
 +
|Documentation for adding additional aerosol species
 +
|Connor Barker (UCL)
 +
|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)
 
|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"
 
|-valign="top"
−
|Adaption of TOMAS' in-cloud aqueous sulfate production for KPP versus sulfate_mod.F90
+
|Canopy Physics Model
−
|Betty Croft (Dalhousie)
+
|Sam Silva (MIT)
−
|Aerosols
+
|Dry Deposition
 
|
 
|
 +
*Available at https://zenodo.org/records/3614062#.XzvrH5NKjOR (GEOS-Chem 12.3.0)
  
 
|-valign="top"
 
|-valign="top"
−
|ML algorithms for bulk aerosols
+
|Dry deposition diagnostics by land cover
−
|Arshad Nair (SUNY Albany)<br>Fangqun Yu (SUNY Albany)
+
|Holly Nowell (FSU)<br>Chris Holmes (FSU)
−
|Aerosols
+
|Dry Deposition
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|PM2.5 and PM10 calculations: aerodynamic vs geometric diameters
+
|Dry deposition process diagnostics
−
|Shixian Zhai (Harvard)
+
|Holly Nowell (FSU)<br>Chris Holmes (FSU)
−
|Aerosols
+
|Dry Deposition
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Updates to Hodzic SOA scheme
+
|Biomass burning for TOMAS
−
|Jared Brewer (Harvard)
+
|Nicole June (CSU)
−
|Aerosols
+
|Emissions +<br>Microphysics
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Automated reduction in isoprene scheme
+
|Historic biomass burning (1750-2010)
−
|Dan Westervelt (Lamont-Doherty)
+
|Pengfei Liu (Georgia Tech)
−
|Aerosols
+
|Emissions
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Brown carbon chemsitry
+
|Rice methane emissions
−
|Jingqiu Mao (U. Alaska)<br>Xuan Wang (CUHK)
+
|Zichong Cheng (Harvard)
−
|Aerosols
+
|Emissions+<br>Carbon simulation
 
|
 
|
  
 
|-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)
+
|Tia Scarpelli (Carbon Mapper)<br>Melissa Sulprizio (Harvard)
−
|Convection
+
|Emissions
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|High-res top-down TROPOMI-derived seasonal mean NOx emissions for China
+
|New prior CO2 biospheric fluxes from CMS-FLUX and GMAO
−
|Jintai Lin (PKU)
+
|Kevin Bowman (JPL)<br>Lesley Ott (GMAO)
 
|Emissions
 
|Emissions
 
|
 
|
−
*Horizontal resolution: 5km, temporal resolution: JJA mean
+
*GMAO can provide high-resolution fluxes (as high as 12 km)
−
*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)<br>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
 
|
 
|
−
*Ongoing (will be done as time allows)
 
  
 
|-valign="top"
 
|-valign="top"
−
|Retire all BPCH diagnostics
+
|Integration testing: Add stretched grid
−
|Bob Yantosca (Harvard)
+
|Lizzie Lundgren (Harvard)
−
|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
+
|Integration testing: Add GCHP mass flux run
−
|Killian Murphy (York)
+
|Lizzie Lundgren (Harvard)
−
|Model performance
+
|Quality Assurance
 
|
 
|
−
*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
+
|Integration testing: Reinstate TOMAS40
−
|Seb Eastham (MIT)<br>Killian Murphy (York)
+
|Betty Croft (Dalhousie/WashU)
−
|Model performance
+
|Quality Assurance
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Improve run directory templating and creation with init_rd.sh and shared directories
+
|Continue cleanup of C-preprocessor switches
−
|Jourdan He (WashU)
+
|Lizzie Lundgren (Harvard)
−
|Run directories
+
|Structural
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Table of CTM and online GCM properties: GCHP, GCC, GEOS-CTM, GC-Nested, online GEOS, GEOS-replay, etc
+
|Updates to Luo deposition scheme
−
|GCST?
+
|Gan Luo (Albany)
−
|Documentation
+
|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 437: Line 545:
  
 
|-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"
−
|Dust non-sphericity impacts on surface chem and optical properties
+
|Mesospheric source of CO
−
|Inderjeet Singh (WashU)
+
|Dylan Jones (UofT)<br>Pam Wales (NASA GSFC)
−
|Aerosols
+
|Emissions
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Size-resolved stratospheric aerosol
+
|Drought-stress algorithm
−
|Seb Eastham (MIT)
+
|Wei Li (Houston)
−
|Aerosols
+
|Emissions
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Extend aerosol settling
+
|Physically-based resolution correction for BVOC emissions using MEGAN
−
|Eloise Marais (UCL)
+
|May Fu (SUSTech)
−
|Aerosols
+
|Emissions
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Stratospheric aerosol APM
+
|Canadian forest fire prediction system (Canada government forecast model)
−
|Fangqun Yu (SUNY)
+
|Robin Stevens (Montreal)
−
|Aerosols
+
|Emissions
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Plume-in-grid model
+
|Cooking emissions (not biofuel)
−
|Hongwei Sun (Harvard)
+
|Kelvin Bates (CU Boulder)
−
|Chemistry
+
|Emissions
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Updated lightning NOx: Prescribe from ground and geostationary lightning flashes
+
|State-specific annual emissions scaling factors (US) (1990-2021)
−
|Lee Murray (Rochester)
+
|Ishir Dutta (MIT)
 
|Emissions
 
|Emissions
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Seb aircraft emissions beyond recent 2019 update
+
|GISS-GC online
−
|Seb Eastham (MIT)
+
|Lee Murray (Rochester)
−
|Emissions
+
|External model
 +
|
 +
 
 +
|-valign="top"
 +
|Hybrid MPI-OpenMP in GCHP
 +
|Seb Eastham (MIT)<br>Killian Murphy (York)<br>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 (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"
 
|-valign="top"
−
|Modularization of aerosols code for interface with GOCART in GEOS
+
|Automate integration testing on AWS
−
|Christoph Keller (GMAO)
+
|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"
 +
|Separate mixing, emissions, and drydep
 +
|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 600: Line 792:
  
 
|-valign="top"
 
|-valign="top"
−
|Updates to Aromatic chemistry
+
|Modal aerosol model (MAM7) in GCHP
−
|Stephen MacFarlane (UOW)<br>Jenny Fisher (UOW)
+
|Shreya Sharma (MIT)
−
|Chemistry
+
|Aerosols
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Nitrate photolysis
+
|Online OCIM ocean biogeochemistry
−
|Mat Evans (York)<br>Thomas Sherwen (York)<br>Matthew Rowlinson (York)
+
|Lee Murray (Rochester)<br>Hannah Horowitz (UIUC)<br>Chris Holmes (FSU)
 
|Chemistry
 
|Chemistry
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|In aerosol chemistry Halogens
+
|Perchlorate chemistry
−
|Mat Evans (York)<br>Hansen Cao (CU Boulder)
+
|Yuk Chun Chan (UW)
 
|Chemistry
 
|Chemistry
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Benchmark box model of GC Chemistry
+
|Non-stomatal dry deposition (2-layer canopy model)
−
|Katie Travis (NASA)
+
|Michael Vermeuel (Purdue)
−
|Chemistry
+
|Dry Deposition
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Alkyl nitrates Alk7, PHAN
+
|Continental chloride particle emissions (salty dust, road salt)
−
|Katie Travis (NASA)
+
|Jessica Haskins (Utah)
−
|Chemistry
+
|Emissions
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Add stratospheric ozone species to full-chemistry simulations
+
|Multivolatility emission inventory to address gaps in EDGAR/HTAP etc.
−
|Lee Murray (Rochester)
+
|Ruochong (Tshingua)
 +
|Emissions
 +
|
 +
 
 +
|-valign="top"
 +
|Lightning NOx production rates
 +
|Bex Horner (UCL)
 +
|Emissions
 +
|
 +
 
 +
|-valign="top"
 +
|HFO and CF3CHO
 +
|Beth Killen (Wollongong)<br>Jenny Fisher (Wollongong)
 
|Chemistry
 
|Chemistry
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Perchlorate chemistry
+
|Glyoxal updates from isoprene
−
|Yuk Chun Chan (UWAB)
+
|Tzung-May Fu (SUSTech)
 
|Chemistry
 
|Chemistry
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Explicit heterogeneous sulfate chemistry
+
|Iodine chemistry
−
|Katie Travis (NASA)<br>Becky Alexander (UT)
+
|Becky Alexander (UW)<br>Xuan Wang (CUHK)
 
|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)<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"
 +
|New observations (2010-2020) in standardized Hg benchmark for intercomparison
 +
|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"
 
|-valign="top"
−
|Updating landcover products in GEOS-Chem
+
|New halogen/aerosol fields (surface area / AOD) from 10-year 14.4 benchmark simulation available online
−
|Chris Holmes (FSU)<br>Jeff Geddes (BU)
+
|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
 +
|
 +
 
 +
|-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 16:19, 31 October 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 version of CEDS at 0.1 deg Dandan Zhang (WashU) Emissions Simple
Use USTAR read from GEOS instead of calculating from U10M and V10M Yuanjian Zhang (WashU) Emissions Simple
  • HEMCO PR #279
  • NOTE: WashU will recompute mass tuning factors for each met field & resolution (GCClassic)
Ongoing carbon simulation fixes in GCClassic and GCHP GCST Carbon simulation Medium
Investigate potential performance gains of replacing the KPP Rosenbrock solver with the LSODE solver Bob Yantosca (Harvard) Chemistry Medium
Fix obspack - not working in 14.4.0 Bob Yantosca (Harvard) Diagnostics Medium
Make GC-Classic bit-for-bit reproducible upon restart
(part 1 of 2) 		Lizzie Lundgren (Harvard) GC-Classic Medium
Capture all trop and PBL height changes in budget diagnostics Chris Holmes (FSU)
Lizzie Lundgren (Harvard) 		Diagnostics Medium
Derive convective precipitation flux if using FP/IT generated with Grell-Freitas Yuanjian Zhang (WashU)
Viral Shah (GMAO)
Lizzie Lundgren (Harvard) 		Convection 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
Correct the issue that injection height has been artificially decreased by HEMCO Lixu Jun (Montana) Emissions Simple Delivered
June 2024
Capability to run GCClassic at 0.125x0.15625 resolution Melissa Sulprizio (Harvard)
Xiaolin Wang (Harvard) 		Nested grid Simple Delivered
Strat-adjusted RF in GCC and GCHP Connor Barker (UCL)
Eloise Marais (UCL) 		Radiation Simple Delivered
Archived TCR-2 OH fields for carbon simulations Kazu Miyazaki (JPL)
Melissa Sulprizio (Harvard) 		Input data Simple Data delivered
Oct 2024
  • This will be the default OH, but users will have the option of selecting other OH fields
  • geos-chem issue #2537
Dust non-sphericity impacts on optical properties Inderjeet Singh (WashU) Aerosols Medium Not yet delivered

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
Update UCX to include gravitational settling of aerosol species beyond just BCPI Conor Barker (UCL)
Eloise Marais (UCL) 		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)
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 Hg emissions (2000-2019) Stephen MacFarlane (Wollongong)
Jenny Fisher (Wollongong) 		Emissions Not delivered
  • MacFarlane et al. (2024)
  • Includes emissions from black and brown coal power plants, various metal production/processing sources (Aluminium, gold, copper, lead, etc), waste products, cement production, oil refining and petroleum, chlor alkali plants, and cremation
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

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
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: Reinstate TOMAS40 Betty Croft (Dalhousie/WashU) Quality Assurance
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
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