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

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(Prioritized and in the queue)
 
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On this page we list the current priorities for GEOS-Chem development. This list was compiled by the user Working Groups at the last [http://acmg.seas.harvard.edu/geos/meetings/2017/index.html International GEOS-Chem Meeting (IGC8)] in May 2017 and will be continuously updated based on code readiness and input from the Working Groups and the Steering Committee.
+
On this page we list the current priorities for GEOS-Chem development. This list is continuously updated based on code readiness and input from the [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]].
  
We also invite you to view our [https://trello.com/board/geos-chem-support-team/4fe36668fc79a1d3540ba80b GEOS-Chem Support Team project management board on Trello.com], which shows the current GCST workflow.
+
== Merged and awaiting release ==
  
== List of priorities as of May 2017 ==
+
See the links below for items merged and awaiting release.
 
+
The items listed below are in different stages of readiness and will be included in future versions of the model.
+
 
+
=== Ready to go in ===
+
 
+
==== Defer to v11-03 ====
+
 
+
The following updates are now slated for inclusion into [[GEOS-Chem v11-03]]:
+
  
 
{| border=1 cellspacing=0 cellpadding=5  
 
{| border=1 cellspacing=0 cellpadding=5  
 
|-bgcolor="#CCCCCC"
 
|-bgcolor="#CCCCCC"
!width="400px"|Feature
+
!width="300px"|Mergeable at any time
!width="250px"|Submitted by
+
!width="200px"|Version in development
!width="100px"|Type
+
!width="250px"|Status
+
 
+
|-
+
!colspan="4" bgcolor="#CCFFFF"|Transport updates
+
  
 
|-valign="top"
 
|-valign="top"
|[https://www.geosci-model-dev-discuss.net/gmd-2017-125/ GEOS resolution & subgrid convection]
+
|align="center"|'''[[GEOS-Chem no-diff-to-benchmark]]'''
|Karen Yu (Harvard)
+
|align="center"|'''[[GEOS-Chem 14.4.0]]'''
|Science
+
|
+
*Delivered to GCST (Oct 2017)
+
  
|-valign="top"
+
|}
|[[Transport_Working_Group#Common_set_of_tracers_in_GEOS-Chem_and_GEOS|Common set of tracers in GEOS-Chem and GEOS]]
+
|Transport WG<br>[[GCST]]
+
|Benchmarking
+
|
+
  
|-
+
== Feature integration in progress ==
!colspan="4" bgcolor="#CCFFFF"|Chemistry updates
+
  
|-valign="top"
+
Features listed in this table are actively being integrated into GEOS-Chem by the [https://geoschem.github.io/support-team.html GEOS-Chem Support Team]. In addition, we continuously implement structural updates in the model to maintain and develop coupling with other models including GEOS, CESM, and the model adjoint.
|Updated chlorine chemistry
+
|Xuan Wang (Harvard)
+
|Science
+
|
+
  
|-valign="top"
+
{| border=1 cellspacing=0 cellpadding=5
|[[Stratospheric_chemistry#Treatment_of_the_mesosphere_in_UCX_simulations|Extend UCX into the mesosphere]]
+
|-bgcolor="#CCCCCC"
|Sebastian Eastham (MIT)
+
!width="200px"|Feature
|Science
+
!width="200px"|Contributor(s)
|
+
!width="100px"|Model scope
 +
!width="100px"|Ease of implementation
 +
!width="300px"|Notes and References
  
 
|-valign="top"
 
|-valign="top"
|[[Chemistry_Issues#Correcting_ozone_from_the_height_of_the_lowest_model_level_to_the_surface|ND49 timeseries diagnostic for correcting ozone from the height of the lowest model level to 10m]]
+
|[https://doi.org/10.7910/DVN/23BRII Global continental chlorine (pCl and HCl) emissions]
|Katie Travis (MIT)
+
|Bingqing Zhang (Georgia Tech)<br>Pengfei Liu (Georgia Tech)
|Structural
+
|Emissions
 +
|Simple
 
|
 
|
*Defer until the paper is published
 
  
 
|-valign="top"
 
|-valign="top"
|[[Chemistry_Issues#Script_for_evaluating_carbon_balance|Script for checking N, C, etc. balance in chemistry mechanism]]
+
|[https://github.com/geoschem/geos-chem/issues/1747 Parameterization of SNA and OM dry size]
|Barron Henderson (EPA)
+
|Haihui Zhu (WashU)
|Software
+
|Aerosols
 +
|Medium
 
|
 
|
 
+
*[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]
!colspan="4" bgcolor="#CCFFFF"|Emissions updates
+
  
 
|-valign="top"
 
|-valign="top"
|[[Volcanic_SO2_emissions_from_Aerocom#OMI-based_volcanic_emissions|OMI-based volcanic emissions 2005-2012]]
+
|[https://github.com/geoschem/geos-chem/issues/1288 New soil NOx parameterization]
|Cui Ge (U. Iowa)<br>Jun Wang (U. Iowa)
+
|Yi Wang (U. Iowa)<br>Jun Wang (U. Iowa)
|Science
+
|Emissions
 +
|Medium
 
|
 
|
*Delivered to GCST (Nov 2017)
+
*[https://github.com/geoschem/geos-chem/issues/1288 geos-chem issue #1288]
*Need to implement a fix to handle missing data for the last 3 months of 2012. Deferred to v11-03.
+
*Incorporates new met field TSOIL1
  
 
|-valign="top"
 
|-valign="top"
|MEIC emissions over China (2000-2015)
+
|Remove differences in GC-Classic due to HEMCO reading REAL8 restart as REAL4
|Lu Shen (Harvard)<br>Melissa Sulprizio (Harvard)
+
|Lizzie Lundgren (Harvard)
|Science
+
|GC-Classic
 +
|Medium
 
|
 
|
*Implementation delayed until MEIC paper is published
+
*[https://github.com/geoschem/HEMCO/issues/18 hemco issue #18]
  
 
|-valign="top"
 
|-valign="top"
|[[Mineral_dust_aerosols#Anthropogenic_PM2.5_dust_source_in_GEOS-Chem|Anthropogenic PM2.5 dust source]]
+
|Replace ISORROPIA with [https://gmd.copernicus.org/articles/17/2197/2024/ HETPv1.0]
|Sajeev Philip (Dalhousie)
+
|Lizzie Lundgren (Harvard)<br>Seb Eastham (ICL)
|Science
+
|Aerosol thermodynamics
 +
|Medium
 
|
 
|
*Deferred to v11-03. Need to fix an "under-the-hood" issue in HEMCO that causes 1200 Tg of dust to be emitted by this update.
+
*[https://github.com/geoschem/geos-chem/issues/2235 geos-chem issue #2235]
  
 
|-valign="top"
 
|-valign="top"
|[[FINNv1_biomass_burning_emissions|FINN biomass burning emissions for 2014-2016]]
+
|Only convert units for species that need it
|Barron Henderson (US EPA)
+
|Bob Yantosca (Harvard)
|Science
+
|Unit conversions
 +
|Medium
 
|
 
|
*Deferred to v11-03, pending receipt of corrected data files
+
*[https://github.com/geoschem/geos-chem/pull/2072 geos-chem PR #2072]
  
 
|-valign="top"
 
|-valign="top"
|EPA NEI2011 Version EK
+
|Capture all trop and PBL height changes in budget diagnostics
|Zitely Tzompa-Sosa (CSU)<br>Emily Fischer (CSU)
+
|Chris Holmes (FSU)<br>Lizzie Lundgren (Harvard)
|Science
+
|Diagnostics
 +
|Medium
 
|
 
|
*Deferred to v11-03; need extra time for validation
+
*[https://github.com/geoschem/geos-chem/pull/2103 geos-chem PR 2103]
  
|-valign="top"
+
|}
|Grid-independent emissions, including:
+
*Lightning NOx emissions (3-hourly)
+
*Dust emissions (hourly)
+
*Biogenic and sea salt emissions (hourly)
+
|Randall Martin (Dalhousie)<br>Lee Murray (Rochester)<br>David Ridley (MIT)<br>Jintai Lin (PKU)
+
|Science
+
|
+
*Mostly complete, but deferred to v11-03. Need to download data from developers.
+
  
|-valign="top"
+
== Prioritized and in the queue ==
|EPA-derived BC/OA emissions over US (1990-2012)
+
|David Ridley (MIT)<br>Chi Li (Dalhousie)
+
|Science
+
|
+
*Need to coordinate between Ridley and Li versions
+
  
|-valign="top"
+
Features listed in this table are prioritized for integration into GEOS-Chem in the near future.
|[[Sulfate_aerosols#Ocean_ammonia_emission_inventory|Ocean ammonia emission inventory]]
+
|Fabien Paulot (NOAA/GFDL)
+
|Science
+
|
+
*Data files delivered to GCST (Jan 2016)
+
*Needs to be implemented via HEMCO
+
  
|-valign="top"
+
{| border=1 cellspacing=0 cellpadding=5
|[http://www.atmos-chem-phys.net/16/2819/2016/ A snow NOx source from deep snowpack]
+
|-bgcolor="#CCCCCC"
|Maria Zatko (UW)<br>Becky Alexander (UW)
+
!width="200px"|Feature
|Science
+
!width="200px"|Contributor(s)
|
+
!width="100px"|Model scope
*Delivered to GCST (Nov 2017)
+
!width="100px"|Ease of implementation
*Implemented in v9-01-01
+
!width="100px"|Delivery status
*Needs to be added as a HEMCO extension
+
!width="300px"|Notes and References
  
 
|-valign="top"
 
|-valign="top"
|[[MASAGE_NH3_inventory|MASAGE inventory in HEMCO as default]]
+
|ALK4 & R4N2 chemistry
|Fabien Paulot (NOAA/GFDL)<br>Amos Tai (CUHK)
+
|Jared Brewer (UMN)
|Science
+
|Chemistry
 +
|TBD
 +
|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., 2023.]
  
 
|-valign="top"
 
|-valign="top"
|[[MASAGE_NH3_inventory#Non-agricultural_NH3_for_use_with_MASAGE|Non-agricultural NH3 for use with MASAGE]]
+
|Mass flux regridding fix in MAPL
|Amos Tai (CUHK)
+
|Tom Clune (GMAO)<br>Seb Eastham (MIT)
|Science
+
|GCHP input regridding
 +
|Medium
 
|
 
|
 
|-valign="top"
 
|Radon emission update
 
|Bo Zhang (NIA/NASA Langley)
 
|Science
 
 
|
 
|
*Delivered to GCST (Nov 2017)
+
*[https://github.com/geoschem/GCHP/issues/377 GCHP Issue #377]
*Implementation pending paper submission
+
*'''Currently on hold, as the submitted update results in zero diff'''
  
 
|-valign="top"
 
|-valign="top"
|GFAS biomass burning emissions
+
|New version of CEDS at 0.1 deg
|Mat Evans (York)
+
|Dandan Zhang (WashU)
|Science
+
|Emissions
 +
|Simple
 +
|Delivered
 
|
 
|
 +
*[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 by the authors.'''
  
|-
+
|}
!colspan="4" bgcolor="#CCFFFF"|Deposition/surface updates
+
  
|-valign="top"
+
== Ready to go in ==
|Wet scavenging in mixed-phase clouds
+
|Bo Zhang (NIA/NASA Langley)
+
|Science
+
|
+
*Delivered to GCST (Nov 2017)
+
*Only applied/tested for Pb
+
*Implementation pending paper submission
+
  
|-valign="top"
+
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.
|Harmonizing Henry's Law coefficients across wet and dry deposition
+
|[[GCST]]
+
|Science
+
|
+
*Work not started yet. Will need input from the community.
+
  
|-valign="top"
+
{| border=1 cellspacing=0 cellpadding=5
|[[Aerosols_Working_Group#Sedimentation_of_stratospheric_aerosols|Sedimentation of stratospheric aerosols]]
+
|-bgcolor="#CCCCCC"
|Sebastian Eastham (Harvard)
+
!width="200px"|Feature
|Science
+
!width="200px"|Contributor(s)
|
+
!width="100px"|Model scope
 
+
!width="100px"|Delivery status
|-
+
!width="300px"|Notes and References
!colspan="4" bgcolor="#CCFFFF"|Aerosol updates
+
  
 
|-valign="top"
 
|-valign="top"
|Sea salt aerosol alkalinity
+
|KORUS-AQ emissions for East Asia (as an option)
|Qianjie Chen (UW)<br>Becky Alexander (UW)<br>Xuan Wang (Harvard)
+
|Katie Travis (NASA)
|Science
+
|Emissions
 +
|Simple
 
|
 
|
*UW version delivered to GCST (Nov 2017)
 
  
 
|-valign="top"
 
|-valign="top"
|VBS SOA option
+
|Geologic emission of ethane and propane
|Rokjin Park (SNU)
+
|Matthew Rowlinson and Mat Evans(York)
|Science
+
|Emissions
 +
|Delivered<br>Jan 2023
 
|
 
|
 
+
*Global source from https://doi.org/10.1038/s41561-018-0073-0 with spatial distribution from https://doi.org/10.5194/essd-11-1-2019
|-
+
!colspan="4" bgcolor="#CCFFFF"|Specialty simulation updates
+
  
 
|-valign="top"
 
|-valign="top"
|Oxidant fields from v10 for 2006-2012
+
|[https://github.com/geoschem/geos-chem/pull/629 Ecophysiology module in GEOS-Chem for biosphere-atmosphere exchange]
*3D chemical source for CO2, CO
+
|Joey Lam(CUHK)<br>Amos Tai (CUHK)
*OH for tagged CO & CH4
+
|Dylan Jones (UofT)
+
 
|Science
 
|Science
 +
|Delivered<br>Feb 2021
 
|
 
|
*Will make data files available on ftp site
+
*[https://github.com/geoschem/geos-chem/pull/629 geos-chem PR #629]
  
 
|-valign="top"
 
|-valign="top"
|Year 2010 ocean Hg boundary conditions from ocean model
+
|LPJ land cover (global), fire (W US), dust emissions (SW N America), 1700-2100
|Hannah Horowitz (Harvard)
+
|Yang Li (Baylor University)<br>Loretta Mickley (Harvard)
|Science
+
|Emissions
 +
|Delivered<br>Jul 2021
 
|
 
|
 +
*Data involves many files- need to think about temporal frequency
  
 
|-valign="top"
 
|-valign="top"
|Historical products emissions from Zhang et al. (2016), should become default
+
|[https://github.com/geoschem/geos-chem/issues/1867 Online H2 chemistry]
|Colin Thackray (Harvard)
+
|Maria Paula Pérez-Peña (UNSW)<br>Jenny Fisher (UOW)<br>Dylan Millet (UMN)
|Science
+
|Chemistry
 +
|Delivered<br>June 2023
 
|
 
|
 +
*[https://acp.copernicus.org/articles/22/12367/2022/acp-22-12367-2022.html Pérez-Peña, M.P. et al., ACP, 2022.]
 +
*Implemented in v12.5, needs to be brought up to current version
  
 
|-valign="top"
 
|-valign="top"
|AMAP/UNEP 2035 for Hg simulation
+
|DMS Chemistry
|Helene Angot (MIT)
+
|Linia Tashmim (UC Riverside)<br>William Porter (UC Riverside)
|Science
+
|Chemistry
 +
|Not delivered
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Africa nested-grid for GEOS-FP and MERRA-2
+
|Organic acids (RCOOH)
|Eloise Marais (U. Birmingham)
+
|Katie Travis (NASA)
|Science
+
|Chemistry
 +
|Not delivered
 
|
 
|
*Delivered to GCST (Dec 2017)
 
  
 
|-valign="top"
 
|-valign="top"
|West Africa nested-grid for GEOS-FP
+
|Improve carbon & nitrogen conservation in reactions
|Mat Evans (York)<br>Eleanor Morris (York)
+
|Kelvin Bates (Harvard)
|Science
+
|Chemistry
 +
|Not delivered
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|[[Sulfate_aerosols#Tagged_sulfate_and_nitrate_simulation|Tagged sulfate simulation]]
+
|Blowing snow sea salt in TOMAS
|Becky Alexander (UW)
+
|Betty Croft (Dalhousie)
|Science
+
|Aerosols
 +
|Not delivered
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Arsenic simulation
+
|[https://pubs.rsc.org/en/content/articlelanding/2022/EM/D2EM00019A Australian anthropogenic Hg emissions]
|Shiliang Wu (MT)
+
|Stephen MacFarlane (UOW)<br>Jenny Fisher (UOW)<br> Hannah Horowitz (U. Illinois)<br>Viral Shah (Harvard)
|Science
+
|Hg simulation
 +
|Not delivered
 
|
 
|
 
|-
 
!colspan="4" bgcolor="#CCFFFF"|Structural updates
 
  
 
|-valign="top"
 
|-valign="top"
|Updated flux diagnostics
+
|WRF-GC Hg simulation
|Chris Holmes (Florida State)<br>[[GCST]]
+
|Xiaotian Xu (Nanjing U.)<br>Yanxu Zhang (Nanjing U.)
|Structural/<br>Benchmarking
+
|Hg simulation<br>WRF-GC
 +
|Not delivered
 
|
 
|
*Deferred to v11-03
 
  
 
|-valign="top"
 
|-valign="top"
|Additional modifications for [[FlexChem]], including:
+
|Updated HgII gas-partical partitioning
*Rebuild the pre-built chemistry mechanisms (Standard, Tropchem, SOA-SVPOA) with [http://www.paratools.com/Kppa Kppa]
+
|Kaiyun Liu (Tsinghua U.)<br>Qingru Wu (Tsinghua U.)<br>Shuxiao Wang (Tsinghua U.)
*Add capability for custom chemistry mechanism by building KPP on-the-fly in GEOS-Chem
+
|Hg simulation
|[[GCST]]
+
|Not delivered
|Structural
+
 
|
 
|
*Work not started yet
+
*Should be option, not default
  
 
|-valign="top"
 
|-valign="top"
|Benchmark of stratospheric simulation
+
|Dry deposition to F90 (readability)
|Dylan Jones (U. Toronto)
+
|Chris Holmes (FSU)
|Benchmarking
+
|Dry deposition
 +
|Not delivered
 
|
 
|
*1-yr benchmarks for GEOS-Chem v11-01d and later include comparisons with OSIRIS O3
 
*Waiting on OSIRIS NO2 data
 
*Waiting on comparisons with ACE-FTS data
 
  
|-valign="top"
 
|Add total column O3 to benchmarks
 
|Chris Holmes (FSU)<br>[[GCST]]
 
|Benchmarking
 
|
 
*Deferred until v11-03
 
 
|-valign="top"
 
|[[GEOS-Chem_species_units|Uniformity of units]]
 
|[[GCST]]
 
|Structural
 
|
 
*Phase 2 (unit uniformity throughout chemistry) to be implemented after Flexchem
 
*Phase 3 (unit uniformity in some specialty simulations) will be implemented in pieces with input from 3rd party developers
 
*Phase 4 (removal of area and area-dependent State_Met variables) will be ongoing
 
 
|-valign="top"
 
|ObsPack diagnostic as netCDF replacement for planeflight_mod.F
 
|Andy Jacobson (NOAA/ESRL)
 
|Structural
 
|
 
*Delivered to GCST (May 2017)
 
 
|-valign="top"
 
|[[GEOS-Chem_Output_Files#NetCDF_File_Format|NetCDF Output Phase 3b: Updates to eliminate differences between single and multi-segmented GEOS-Chem runs]]
 
|[[GCST]]<br>Christoph Keller
 
|Bug fix/Structural
 
|
 
 
|-
 
!colspan="4" bgcolor="#CCFFFF"|Expansion of model capabilities
 
 
|-valign="top"
 
|[[FlexGrid|FlexGrid: Use HEMCO to read met fields and enable nested simulations over any custom domains]]
 
|Jiawei Zhuang (Harvard)<br>Jintai Lin (PKU)
 
|Structural
 
|
 
*Delivered to GCST (Oct 2016)
 
*Deferred to v11-03
 
 
|-valign="top"
 
|[[ISORROPIA_II#Investigating_persistent_noise_observed_in_ISORROPIA_output|Update ISORROPIA from v2.0 to v2.2, in order to remove persistent noise in output]]
 
|Seb Eastham (Harvard)
 
|Science
 
|
 
*Delivered to GCST (May 2017)
 
 
|-valign="top"
 
|Archival of roughness length for temperature z0T
 
|[[GCST]]
 
|Met processing
 
|
 
*Work not started yet
 
 
|}
 
|}
  
==== Not prioritized for v11-02 ====
+
== Almost there (< 6 months) ==
  
{| border=1 cellspacing=0 cellpadding=5
+
Features listed in this table are in development and will likely be delivered to the GEOS-Chem Support Team within the next 6 months.
|- bgcolor="#cccccc"
+
!width="400px"|Item
+
!width="250px"|Author(s)
+
!width="100px"|Type
+
!width="250px"|Status
+
  
|-valign="top"
+
{|border=1 cellspacing=0 cellpadding=5
|Sea salt emission from sea ice
+
|Jiayue Huang (UW)
+
|Science
+
|
+
 
+
|-valign="top"
+
|Re-evaluation of SST dependence of sea salt emissions
+
|Jiayue Huang (UW)
+
|Science
+
|
+
 
+
|-valign="top"
+
|[[MEGAN_v2.1_plus_Guenther_2012_biogenic_emissions#Discussion_of_LAI_Data_Sources|Update MODIS LAI fields through 2015]]
+
|Barron Henderson (UF)
+
|Science
+
|
+
 
+
|-valign="top"
+
|Lightning NOx chemistry parameterization
+
|Alicia Gressent (MIT)
+
|Science
+
|
+
 
+
|}
+
 
+
=== Almost there (< 6 months) ===
+
 
+
{| border=1 cellspacing=0 cellpadding=5
+
 
|- bgcolor="#cccccc"
 
|- bgcolor="#cccccc"
!width="400px"|Item
+
!width="200px"|Feature
!width="250px"|Author(s)
+
!width="200px"|Contributor(s)
!width="100px"|Type
+
!width="100px"|Model scope
!width="250px"|Status
+
!width="420px"|Notes and References
  
 
|-valign="top"
 
|-valign="top"
|Aromatics and dicarbonyl chemistry
+
|PPN+hv, PPN+OH
|William Porter (MIT)<br>Tzung-May Fu (PKU)
+
|Robert Ryan (UCL)
|Science
+
|Chemistry
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Diagnostic for species lifetime
+
|MBO
|[[GCST]]
+
|Michael Vermeuel (UMN)
|Science
+
|Chemistry
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Document chemical mechanism in KPP file
+
|Initial conditions for CH4 correcting background and stratospheric biases
|Mat Evans (York)
+
|Todd Mooring (Harvard)
|Structural
+
|Methane simulation
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Carbon bottom up fluxes: anthro, ocean, land
+
|Migrating simple SOA formation from carbon_mod.F90 into the KPP "full-chemistry" mechanism
|Kevin Bowman (JPL)
+
|Bob Yantosca (Harvard)
|Science
+
|Aerosols<br>Structural
 
|
 
|
 +
*Ongoing
  
 
|-valign="top"
 
|-valign="top"
|GISS-GC (ICECAP/GCAP2) in standard model + benchmark
+
|Re-binning of off-line sea salt and dust for use in TOMAS
|Lee Murray (Rochester)<br>Eric Leibensperger (SUNY Plattsburgh)
+
|Betty Croft (Dalhousie)
|Science
+
|Aerosols
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|CESM-GC offline coupling in standard model + benchmark
+
|Adaption of TOMAS' in-cloud aqueous sulfate production for KPP versus sulfate_mod.F90
|Rokjin Park (SNU)<br>Daniel Rothenberg (MIT)
+
|Betty Croft (Dalhousie)
|Science
+
|Aerosols
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|CESM-GC GCHP
+
|ML algorithms for bulk aerosols
|Daniel Rothenberg (MIT)
+
|Arshad Nair (SUNY Albany)<br>Fangqun Yu (SUNY Albany)
|Science
+
|Aerosols
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Injection height for fire emissions
+
|PM2.5 and PM10 calculations: aerodynamic vs geometric diameters
|Juliet Zhu (CSU)<br>Emily Fischer (CSU)
+
|Shixian Zhai (Harvard)
|Science
+
|Aerosols
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Diurnal variability for NH3
+
|Updates to Hodzic SOA scheme
|Henze group
+
|Jared Brewer (Harvard)
|Science
+
|Aerosols
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|OH + NO2 rate update
+
|Automated reduction in isoprene scheme
|Barron Henderson (EPA)
+
|Dan Westervelt (Lamont-Doherty)
|Science
+
|Aerosols
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|N2O5 hydrolysis updates
+
|Brown carbon chemsitry
|Viral Shah (UW)
+
|Jingqiu Mao (U. Alaska)<br>Xuan Wang (CUHK)
|Science
+
|Aerosols
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Land cover module: Harmonized biosphere-atmosphere exchange and implementing CLM or manual land cover change experiments
+
|GEOS resolution and subgrid convection - Part 2 RAS parameter tuning
|Jeff Geddes (BU)
+
|Tailong He (Toronto)<br>Dylan Jones (Toronto)<br>Andrea Molod (NASA GMAO)
|Science
+
|Convection
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|H2 chemistry in UCX
+
|High-res top-down TROPOMI-derived seasonal mean NOx emissions for China
|Chris Holmes (FSU)
+
|Jintai Lin (PKU)
|Science
+
|Emissions
 
|
 
|
 +
*Horizontal resolution: 5km, temporal resolution: JJA mean
 +
*monthly data will be available at a later stage; please contact us
  
 
|-valign="top"
 
|-valign="top"
|Uptake of HNO3 onto coarse-mode sea salt
+
|Updated biomass burning emission factors and species
|Prasad Kasibhatla (Duke)
+
|Tess Carter (MIT)
|Science
+
|Emissions
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Photolysis of NITs
+
|Updated offline sea salt emissions
|Prasad Kasibhatla (Duke)
+
|Hongjian Weng (PKU) <br> Jintai Lin (PKU)
|Science
+
|Emissions
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|[[POPs simulation#PCB simulation|PCB simulation]]
+
|[https://gmd.copernicus.org/articles/13/2569/2020/ Canopy Physics Model]
|Colin Thackray (Harvard)<br>Carey Friedman (formerly MIT)<br>Helen Amos (formerly Harvard)
+
|Sam Silva (MIT)
|Science
+
|Emissions &<br>Science
 
|
 
|
 
+
*DOI: [https://zenodo.org/record/3614062#.XzvrH5NKjOR 10.5281/zenodo.3614062]
 +
*Needs to be updated to a more recent GEOS-Chem version
  
 
|-valign="top"
 
|-valign="top"
|New EDGAR sectoral inventory for Hg (1970-2012)
+
|Assessment/improvement of OpenMP performance in GC-Classic and HEMCO standalone
|Amanda Giang (MIT)
+
|Bob Yantosca (Harvard)
|Science
+
|Model performance
 
|
 
|
 +
*Ongoing (will be done as time allows)
  
 
|-valign="top"
 
|-valign="top"
|Wet deposition parameterizations: pH dependency, Henry's law coefficients, etc.
+
|Retire all BPCH diagnostics
|Sarah Safieddine (MIT)<br>GCST
+
|Bob Yantosca (Harvard)
|Science
+
|Diagnostics
 
|
 
|
 +
*Can be done following the [https://github.com/geoschem/geos-chem/pull/1569 TOMAS update for GCHP]
  
 
|-valign="top"
 
|-valign="top"
|Archive GISS met fields from RCP scenarios for community
+
|Assess memory leak in GCHP
|Lee Murray (Rochester)
+
|Killian Murphy (York)
|Science
+
|Model performance
 
|
 
|
 +
*NOTE: Most memory leaks in GCHP have been fixed by [https://github.com/geoschem/geos-chem/pull/1353 geoschem/geos-chem PR #1353].  Need to assess if any memory leaks still remain.
  
 
|-valign="top"
 
|-valign="top"
|Online O3-LAI coupling in GEOS-Chem
+
|Hybrid MPI-OpenMP in GCHP
|Amos Tai (CUHK)
+
|Seb Eastham (MIT)<br>Killian Murphy (York)
|Science
+
|Model performance
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Clean up SOA diagnostics
+
|Improve run directory templating and creation with init_rd.sh and shared directories
|GCST
+
|Jourdan He (WashU)
|Structural
+
|Run directories
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Calculation consistency throughout code: surface area, HGF (via species database)
+
|Table of CTM and online GCM properties: GCHP, GCC, GEOS-CTM, GC-Nested, online GEOS, GEOS-replay, etc
|GCST
+
|GCST?
|Structural
+
|Documentation
 
|
 
|
  
 
|}
 
|}
  
=== Over the horizon (6-12 months) ===
+
== Over the horizon (6-12 months) ==
 +
 
 +
Features listed in this table are in development and will likely be delivered to the GEOS-Chem Support Team in the 6-12 months timeframe.
  
 
{| border=1 cellspacing=0 cellpadding=5
 
{| border=1 cellspacing=0 cellpadding=5
 
|- bgcolor="#cccccc"
 
|- bgcolor="#cccccc"
!width="400px"|Item
+
!width="200px"|Feature
!width="250px"|Author(s)
+
!width="200px"|Contributor(s)
!width="100px"|Type
+
!width="100px"|Model scope
!width="250px"|Status
+
!width="420px"|Notes and References
  
 
|-valign="top"
 
|-valign="top"
|GISS-GC GCHP
+
|Snow / Icy Bromine
|Lee Murray (Rochester)
+
|Becky Alexander (UW)<br>William Swanson (U. Alaska)<br>Shuting Zhai (UW)
|Science
+
|Chemistry
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Dynamic fire modeling/prediction
+
|Monoterpene oxidation scheme
|Shiliang Wu (MNT)
+
|Jessica Haskins (MIT)
|Science
+
|Chemistry
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Interannually varying ocean model BCs for Hg from ocean model
+
|Fire related VOCs including furans
|Colin Thackray (Harvard)
+
|Lu Hu (UMT)<br>Lixu Jin (UMT)
|Science
+
|Chemistry
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|PAH & PFCA simulations
+
|Extension of UCX into the mesosphere
|Peter Ivatt (York)<br>Mat Evans (York)<br>Noelle Selin (MIT)<br>Colin Thackray (Harvard)
+
|Seb Eastham (MIT)<br>Eric Fleming (NASA)
|Science
+
|Chemistry
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|CH4 in full chemistry simulation
+
|Methane flux ingestion
|Seb Eastham (Harvard)
+
|Eloise Marais (UCL)
|Science
+
|Chemistry
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Standard future land use maps (PFT, LAI) for RCP/CMIP6 simulations
+
|Dust non-sphericity impacts on surface chem and optical properties
|Colette Heald (MIT)<br>Loretta Mickley (Harvard)
+
|Inderjeet Singh (WashU)
|Science
+
|Aerosols
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Archive GISS met fields from CMIP6 scenarios for community
+
|Size-resolved stratospheric aerosol
|Lee Murray (Rochester)
+
|Seb Eastham (MIT)
|Science
+
|Aerosols
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Updates to cold-temperature deposition
+
|Extend aerosol settling
|Lyatt Jaegle (UW)
+
|Eloise Marais (UCL)
|Science
+
|Aerosols
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Simple parameterization for CO2-O3 dependence of stomatal resistance
+
|Stratospheric aerosol APM
|Amos Tai (CUHK)
+
|Fangqun Yu (SUNY)
|Science
+
|Aerosols
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|NH3 emissions over China
+
|Plume-in-grid model
|Lin Zhang (PKU)
+
|Hongwei Sun (Harvard)
|Science
+
|Chemistry
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Using GEOS-Chem within GEOS-5
+
|Updated lightning NOx: Prescribe from ground and geostationary lightning flashes
|Loretta Mickley (Harvard)
+
|Lee Murray (Rochester)
|Science
+
|Emissions
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Carbon cycle outputs in xCO2, xCH4 as a diagnostic
+
|Seb aircraft emissions beyond recent 2019 update
|Beata Bukosa (Wollongong)<br>Dylan Jones (UofT)
+
|Seb Eastham (MIT)
|Science
+
|Emissions
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Seasonal EMEP emissions back to 1980
+
|FRP-based fire emsisions for eastern US at 0.2 deg
|Mat Evans (York)
+
|Charlie Fite (FSU)
|Science
+
|Emissions
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Updates to NO2 dry deposition
+
|Hg iodine chemistry
|Brian Boys (Dalhousie)
+
|Yiming Fu<br>Yanxu Zhang (Nanjing U.)
|Science
+
|Hg simulation
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|APM update and integration with most recent GEOS-Chem version
+
|Hg simulation in GCHP
|Gan Luo (SUNY Albany)
+
|Ari Feinberg (MIT)<br>Lyssa Freese (MIT)
|Structural
+
|Hg simulation
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Cosmogenic tracer production
+
|Update Hg ocean and soil boundary conditions for consistency with new chemistry
|Lee Murray (Rochester)
+
|Yanxu Zhang (Nanjing U.)
|Science
+
|Hg simulation
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Explore resolution-consistent dust emissions
+
|Dry deposition diagnostics by land cover
*Make high-res concentrations or mass fluxes available offline, implement in met field processing
+
|Holly Nowell (FSU)
|David Ridley (MIT)<br>GCST<br>Nested Model WG
+
|Diagnostics
|Science
+
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Dust emissions at nested-grid resolutions
+
|Dry deposition process diagnostics
|Yuxuan Wang (U. Houston)<br>Jun Wang (U. Iowa)
+
|Holly Nowell (FSU)
|Science
+
|Diagnostics
 
|
 
|
*Check for overlap with resolution-consistent dust emissions above
 
  
 
|-valign="top"
 
|-valign="top"
|[[Wet_deposition#Update_SO2_scavenging_in_convective_updrafts_for_consistency|Update SO2 scavenging in convective updrafts for consistency]]
+
|Isotope simulation for CO and CH4 in GCHP
|Duncan Fairlie (NASA/LARC)  
+
|Lee Murray (Rochester)
|Science
+
|Carbon simulation
 
|
 
|
 
|}
 
 
=== Longer term (12-24 months)===
 
 
{| border=1 cellspacing=0 cellpadding=5
 
|- bgcolor="#cccccc"
 
!width="400px"|Item
 
!width="250px"|Author(s)
 
!width="100px"|Type
 
!width="250px"|Status
 
  
 
|-valign="top"
 
|-valign="top"
|GCHP stretched grid
+
|Updated bottom-up global CH4 oil, gas, and coal emissions (GFEI v3)
|Jiawei Zhuang (Harvard)
+
|Melissa Sulprizio (Harvard)<br>Tia Scarpelli (U. Edinburgh)<br>Zichong Chen (Harvard)
|Science
+
|Emissions<br>CH4 simulation
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|1/8 degree nested-grid simulations with GEOS-FP
+
|Modularization of aerosols code for interface with GOCART in GEOS
|Nested Model WG
+
|Christoph Keller (GMAO)
|Science
+
|Structural
 
|
 
|
*Wait for more interest
 
  
 
|-valign="top"
 
|-valign="top"
|Embedding GEOS-Chem into CESM
+
|Improve load balancing in GCHP
|Jean-Francois Lamarque (NCAR)
+
|Seb Eastham (MIT)
|Science
+
|Model performance
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Adjoint of carbon cycle simulation in GCHP
+
|Testing the use of monthly mean MERRA-2 CWC with Pb-210 aerosol tracer
|Kevin Bowman (JPL)
+
|Bo Zhang (NIA)<br>Hongyu Liu (NIA / NASA Langley)
|Science
+
|Transport
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Isoprene chemistry v2 (new Caltech update)
+
|Testing the use of a new scavenging parameterization developed by Luo and Yu for cold cloud with Pb-210 aerosol tracer
|Kelvin Bates (Caltech)
+
|Gan Luo (SUNY Albany)<br>Fangqun Yu (SUNY-Albany)
|Science
+
|Transport
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Contemporary land cover: developing historical and updated GEOS-Chem land cover maps based on satellite remote sensing
+
|Evaluate vertical mixing in GEOS-Chem with model-model and model-observation comparisons
|Jeff Geddes (BU)
+
|Seb Eastham (MIT)<br>Clara Orbe (NASA GISS)<br>Andrew Schuh (CSU)
|Science
+
|Transport
 
|
 
|
  
|-valign="top"
+
|}
|Farquhar-Ball-Barry model to calculate stomatal resistance
+
|Amos Tai (CUHK)<br>Jeff Geddes (BU)
+
|Science
+
|
+
  
|-valign="top"
+
== Longer term (12-24 months)==
|Impacts of chemistry on ecosystem/carbon cycle
+
|Kevin Bowman (JPL)<br>Anthony Bloom (JPL)
+
|Science
+
|
+
  
|-valign="top"
+
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.
|Improved lightning emission scheme
+
|Lee Murray (Rochester)
+
|Science
+
|
+
  
|-valign="top"
+
{| border=1 cellspacing=0 cellpadding=5
|Resolution-independent lightning NOx
+
|- bgcolor="#cccccc"
|Lee Murray (Rochester)
+
!width="200px"|Feature
|Science
+
!width="200px"|Contributor(s)
|
+
!width="100px"|Model scope
 +
!width="420px"|Notes and References
  
 
|-valign="top"
 
|-valign="top"
|Bidirectional NH3 emissions
+
|Updates to Aromatic chemistry
|Juliet Zhu (CSU)
+
|Stephen MacFarlane (UOW)<br>Jenny Fisher (UOW)
|Science
+
|Chemistry
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Country-based weekday/weekend variability for EDGAR 4.2
+
|Nitrate photolysis
|Lee Murray (Rochester)<br>Christoph Keller (Harvard)
+
|Mat Evans (York)<br>Thomas Sherwen (York)<br>Matthew Rowlinson (York)
|Science
+
|Chemistry
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Update keytone photolysis
+
|In aerosol chemistry Halogens
|Jared Brewer (CSU)<br>Emily Fischer (CSU)
+
|Mat Evans (York)<br>Hansen Cao (CU Boulder)
|Science
+
|Chemistry
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Small alkyl nitrates
+
|Benchmark box model of GC Chemistry
|Jenny Fisher (Wollongong)
+
|Katie Travis (NASA)
|Science
+
|Chemistry
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|YIBS-GC chemistry-biosphere-fire coupling
+
|Alkyl nitrates Alk7, PHAN
|Loretta Mickley (Harvard)<br>Xu Yue (IAP)
+
|Katie Travis (NASA)
|Science
+
|Chemistry
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Nitrogen-LAI coupling
+
|Add stratospheric ozone species to full-chemistry simulations
|Lin Zhang (PKU)<br>Amos Tai (CUHK)
+
|Lee Murray (Rochester)
|Science
+
|Chemistry
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Implementing humidity/VPD dependence of dry deposition
+
|Perchlorate chemistry
|Jennifer Murphy (U. Toronto)
+
|Yuk Chun Chan (UWAB)
|Science
+
|Chemistry
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|SO2 wet scavenging
+
|Explicit heterogeneous sulfate chemistry
|Duncan Fairlie (NASA Langley)
+
|Katie Travis (NASA)<br>Becky Alexander (UT)
|Science
+
|Chemistry
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Heterogeneous sulfate production
+
|HOx and ozone "emissions" from lightning as option in model to play with
|Lin Zhang (PKU)<br>Becky Alexander (UW)<br>Yuxuan Wang (U. Houston)
+
|Jingqiu (Alaska)<br>Lee Murray (Rochester)
|Science
+
|Emissions
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|MOSAIC implementation
+
|Sea salt aerosol from sea ice leads
|Sebastian Eastham (Harvard)
+
|Hannah Horowitz (U. Illinois)
|Science
+
|Emissions
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Particle size climatology
+
|Drought-stress algorithm
|Fangqun Yu (SUNY Albany)
+
|Wei Li (U. Houston)
|Science
+
 
|
 
|
 
|-valign="top"
 
|Sea salt/dust size distribution
 
|David Ridley (MIT)<br>Colette Heald (MIT)
 
|Science
 
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Updates to GTMM
+
|Biomass burning injection height profiles
|Rebecca Stern (Harvard)
+
|Inderjeet Singh (WashU)
|Science
+
|Emissions
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Tracer transport ocean
+
|OCIM integration
|Chris Holmes (FSU)
+
|Chris Holmes (FSU)<br>Lee Murray (Rochester)
|Science
+
 
|
 
|
 
|-valign="top"
 
|Include Hg in full chemistry simulation
 
|Noelle Selin (MIT)
 
|Science
 
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Goddard seasonal weather prediction in GCHP
+
|Updating landcover products in GEOS-Chem
|Kevin Bowman (JPL)
+
|Chris Holmes (FSU)<br>Jeff Geddes (BU)
|Science
+
|Input data
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Climate index diagnostics (drought, etc.)
+
|Dry deposition physical improvement
|Chemistry-ecosystems-climate WG
+
|Structural
+
|
+
 
+
|-valign="top"
+
|Joint CO/CO2/CH4 simulation
+
|Nicholas Deutscher (U. Wollongong)
+
|Science
+
|
+
 
+
|-valign="top"
+
|Carbon coupling: oceans and terrestrial models
+
 
|Chris Holmes (FSU)
 
|Chris Holmes (FSU)
|Science
+
|Dry deposition
 
|
 
|
*Ocim-pure physical transport, ECCO-Darwin ocean biogeochemistry
 
  
 
|-valign="top"
 
|-valign="top"
|DMS oxidation scheme updating
+
|TOMAS WRF-GC in regional Thailand simulation
|Qianjie Chen (UW)<br>Chemistry WG
+
|Win Trivitayanurak (Chulalongkorn U)
|Science
+
|Aerosols
|
+
 
+
|-valign="top"
+
|Limiting NH3 uptake due to OA
+
|Rachel Silvern (Harvard)
+
|Science
+
 
|
 
|
  
 
|}
 
|}
 
--[[User:Melissa Payer|Melissa Sulprizio]] ([[User talk:Melissa Payer|talk]]) 20:44, 12 May 2017 (UTC)
 

Latest revision as of 20:55, 18 April 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 14.4.0

Feature integration in progress

Features listed in this table are actively being integrated into GEOS-Chem by the GEOS-Chem Support Team. In addition, we continuously implement structural updates in the model to maintain and develop coupling with other models including GEOS, CESM, and the model adjoint.

Feature Contributor(s) Model scope Ease of implementation Notes and References
Global continental chlorine (pCl and HCl) emissions Bingqing Zhang (Georgia Tech)
Pengfei Liu (Georgia Tech)
Emissions Simple
Parameterization of SNA and OM dry size Haihui Zhu (WashU) Aerosols Medium
New soil NOx parameterization Yi Wang (U. Iowa)
Jun Wang (U. Iowa)
Emissions Medium
Remove differences in GC-Classic due to HEMCO reading REAL8 restart as REAL4 Lizzie Lundgren (Harvard) GC-Classic Medium
Replace ISORROPIA with HETPv1.0 Lizzie Lundgren (Harvard)
Seb Eastham (ICL)
Aerosol thermodynamics Medium
Only convert units for species that need it Bob Yantosca (Harvard) Unit conversions Medium
Capture all trop and PBL height changes in budget diagnostics Chris Holmes (FSU)
Lizzie Lundgren (Harvard)
Diagnostics Medium

Prioritized and in the queue

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

Feature Contributor(s) Model scope Ease of implementation Delivery status Notes and References
ALK4 & R4N2 chemistry Jared Brewer (UMN) Chemistry TBD Not delivered
Mass flux regridding fix in MAPL Tom Clune (GMAO)
Seb Eastham (MIT)
GCHP input regridding Medium
  • GCHP Issue #377
  • Currently on hold, as the submitted update results in zero diff
New version of CEDS at 0.1 deg Dandan Zhang (WashU) Emissions Simple Delivered
  • geos-chem issue #1745
  • Currently on hold while an issue with seasonality in the new CEDS data is being investigated by the authors.

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 References
KORUS-AQ emissions for East Asia (as an option) Katie Travis (NASA) Emissions Simple
Geologic emission of ethane and propane Matthew Rowlinson and Mat Evans(York) Emissions Delivered
Jan 2023
Ecophysiology module in GEOS-Chem for biosphere-atmosphere exchange Joey Lam(CUHK)
Amos Tai (CUHK)
Science Delivered
Feb 2021
LPJ land cover (global), fire (W US), dust emissions (SW N America), 1700-2100 Yang Li (Baylor University)
Loretta Mickley (Harvard)
Emissions Delivered
Jul 2021
  • Data involves many files- need to think about temporal frequency
Online H2 chemistry Maria Paula Pérez-Peña (UNSW)
Jenny Fisher (UOW)
Dylan Millet (UMN)
Chemistry Delivered
June 2023
DMS Chemistry Linia Tashmim (UC Riverside)
William Porter (UC Riverside)
Chemistry Not delivered
Organic acids (RCOOH) Katie Travis (NASA) Chemistry Not delivered
Improve carbon & nitrogen conservation in reactions Kelvin Bates (Harvard) Chemistry Not delivered
Blowing snow sea salt in TOMAS Betty Croft (Dalhousie) Aerosols Not delivered
Australian anthropogenic Hg emissions Stephen MacFarlane (UOW)
Jenny Fisher (UOW)
Hannah Horowitz (U. Illinois)
Viral Shah (Harvard)
Hg simulation Not delivered
WRF-GC Hg simulation Xiaotian Xu (Nanjing U.)
Yanxu Zhang (Nanjing U.)
Hg simulation
WRF-GC
Not delivered
Updated HgII gas-partical partitioning Kaiyun Liu (Tsinghua U.)
Qingru Wu (Tsinghua U.)
Shuxiao Wang (Tsinghua U.)
Hg simulation Not delivered
  • Should be option, not default
Dry deposition to F90 (readability) Chris Holmes (FSU) Dry deposition Not delivered

Almost there (< 6 months)

Features listed in this table are in development and will likely be delivered to the GEOS-Chem Support Team within the next 6 months.

Feature Contributor(s) Model scope Notes and References
PPN+hv, PPN+OH Robert Ryan (UCL) Chemistry
MBO Michael Vermeuel (UMN) Chemistry
Initial conditions for CH4 correcting background and stratospheric biases Todd Mooring (Harvard) Methane simulation
Migrating simple SOA formation from carbon_mod.F90 into the KPP "full-chemistry" mechanism Bob Yantosca (Harvard) Aerosols
Structural
  • Ongoing
Re-binning of off-line sea salt and dust for use in TOMAS Betty Croft (Dalhousie) Aerosols
Adaption of TOMAS' in-cloud aqueous sulfate production for KPP versus sulfate_mod.F90 Betty Croft (Dalhousie) Aerosols
ML algorithms for bulk aerosols Arshad Nair (SUNY Albany)
Fangqun Yu (SUNY Albany)
Aerosols
PM2.5 and PM10 calculations: aerodynamic vs geometric diameters Shixian Zhai (Harvard) Aerosols
Updates to Hodzic SOA scheme Jared Brewer (Harvard) Aerosols
Automated reduction in isoprene scheme Dan Westervelt (Lamont-Doherty) Aerosols
Brown carbon chemsitry Jingqiu Mao (U. Alaska)
Xuan Wang (CUHK)
Aerosols
GEOS resolution and subgrid convection - Part 2 RAS parameter tuning Tailong He (Toronto)
Dylan Jones (Toronto)
Andrea Molod (NASA GMAO)
Convection
High-res top-down TROPOMI-derived seasonal mean NOx emissions for China Jintai Lin (PKU) Emissions
  • Horizontal resolution: 5km, temporal resolution: JJA mean
  • monthly data will be available at a later stage; please contact us
Updated biomass burning emission factors and species Tess Carter (MIT) Emissions
Updated offline sea salt emissions Hongjian Weng (PKU)
Jintai Lin (PKU)
Emissions
Canopy Physics Model Sam Silva (MIT) Emissions &
Science
Assessment/improvement of OpenMP performance in GC-Classic and HEMCO standalone Bob Yantosca (Harvard) Model performance
  • Ongoing (will be done as time allows)
Retire all BPCH diagnostics Bob Yantosca (Harvard) Diagnostics
Assess memory leak in GCHP Killian Murphy (York) Model performance
Hybrid MPI-OpenMP in GCHP Seb Eastham (MIT)
Killian Murphy (York)
Model performance
Improve run directory templating and creation with init_rd.sh and shared directories Jourdan He (WashU) Run directories
Table of CTM and online GCM properties: GCHP, GCC, GEOS-CTM, GC-Nested, online GEOS, GEOS-replay, etc GCST? Documentation

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
Snow / Icy Bromine Becky Alexander (UW)
William Swanson (U. Alaska)
Shuting Zhai (UW)
Chemistry
Monoterpene oxidation scheme Jessica Haskins (MIT) Chemistry
Fire related VOCs including furans Lu Hu (UMT)
Lixu Jin (UMT)
Chemistry
Extension of UCX into the mesosphere Seb Eastham (MIT)
Eric Fleming (NASA)
Chemistry
Methane flux ingestion Eloise Marais (UCL) Chemistry
Dust non-sphericity impacts on surface chem and optical properties Inderjeet Singh (WashU) Aerosols
Size-resolved stratospheric aerosol Seb Eastham (MIT) Aerosols
Extend aerosol settling Eloise Marais (UCL) Aerosols
Stratospheric aerosol APM Fangqun Yu (SUNY) Aerosols
Plume-in-grid model Hongwei Sun (Harvard) Chemistry
Updated lightning NOx: Prescribe from ground and geostationary lightning flashes Lee Murray (Rochester) Emissions
Seb aircraft emissions beyond recent 2019 update Seb Eastham (MIT) Emissions
FRP-based fire emsisions for eastern US at 0.2 deg Charlie Fite (FSU) Emissions
Hg iodine chemistry Yiming Fu
Yanxu Zhang (Nanjing U.)
Hg simulation
Hg simulation in GCHP Ari Feinberg (MIT)
Lyssa Freese (MIT)
Hg simulation
Update Hg ocean and soil boundary conditions for consistency with new chemistry Yanxu Zhang (Nanjing U.) Hg simulation
Dry deposition diagnostics by land cover Holly Nowell (FSU) Diagnostics
Dry deposition process diagnostics Holly Nowell (FSU) Diagnostics
Isotope simulation for CO and CH4 in GCHP Lee Murray (Rochester) Carbon simulation
Updated bottom-up global CH4 oil, gas, and coal emissions (GFEI v3) Melissa Sulprizio (Harvard)
Tia Scarpelli (U. Edinburgh)
Zichong Chen (Harvard)
Emissions
CH4 simulation
Modularization of aerosols code for interface with GOCART in GEOS Christoph Keller (GMAO) Structural
Improve load balancing in GCHP Seb Eastham (MIT) Model performance
Testing the use of monthly mean MERRA-2 CWC with Pb-210 aerosol tracer Bo Zhang (NIA)
Hongyu Liu (NIA / NASA Langley)
Transport
Testing the use of a new scavenging parameterization developed by Luo and Yu for cold cloud with Pb-210 aerosol tracer Gan Luo (SUNY Albany)
Fangqun Yu (SUNY-Albany)
Transport
Evaluate vertical mixing in GEOS-Chem with model-model and model-observation comparisons Seb Eastham (MIT)
Clara Orbe (NASA GISS)
Andrew Schuh (CSU)
Transport

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
Updates to Aromatic chemistry Stephen MacFarlane (UOW)
Jenny Fisher (UOW)
Chemistry
Nitrate photolysis Mat Evans (York)
Thomas Sherwen (York)
Matthew Rowlinson (York)
Chemistry
In aerosol chemistry Halogens Mat Evans (York)
Hansen Cao (CU Boulder)
Chemistry
Benchmark box model of GC Chemistry Katie Travis (NASA) Chemistry
Alkyl nitrates Alk7, PHAN Katie Travis (NASA) Chemistry
Add stratospheric ozone species to full-chemistry simulations Lee Murray (Rochester) Chemistry
Perchlorate chemistry Yuk Chun Chan (UWAB) Chemistry
Explicit heterogeneous sulfate chemistry Katie Travis (NASA)
Becky Alexander (UT)
Chemistry
HOx and ozone "emissions" from lightning as option in model to play with Jingqiu (Alaska)
Lee Murray (Rochester)
Emissions
Sea salt aerosol from sea ice leads Hannah Horowitz (U. Illinois) Emissions
Drought-stress algorithm Wei Li (U. Houston)
Biomass burning injection height profiles Inderjeet Singh (WashU) Emissions
OCIM integration Chris Holmes (FSU)
Lee Murray (Rochester)
Updating landcover products in GEOS-Chem Chris Holmes (FSU)
Jeff Geddes (BU)
Input data
Dry deposition physical improvement Chris Holmes (FSU) Dry deposition
TOMAS WRF-GC in regional Thailand simulation Win Trivitayanurak (Chulalongkorn U) Aerosols