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

From Geos-chem
Jump to: navigation, search
(→‎Slated for v11-03)
(→‎Feature integration in progress)
 
Line 1: Line 1:
−
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.
+
−
 
+
−
=== Slated for 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
+
−
|
+
−
*To be installed by Bob Yantosca (Harvard), tested by Tailong He (Toronto)
+
  
−
|-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
+
−
|
+
−
*Ready to be added
+
  
−
|-
+
== 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
+
−
|
+
−
*Defer until the paper is submitted
+
  
−
|-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
−
*Ready to be added
+
!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 submitted
 
  
 
|-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/1288 New soil NOx parameterization]
−
|Barron Henderson (EPA)
+
|Yi Wang (U. Iowa)<br>Jun Wang (U. Iowa)
−
|Software
+
|Emissions
 +
|Medium
 
|
 
|
−
*
+
*[https://github.com/geoschem/geos-chem/issues/1288 geos-chem issue #1288]
−
 
+
*Incorporates new met field TSOIL1
−
|-
+
−
!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]]
+
|Remove differences in GC-Classic due to HEMCO reading REAL8 restart as REAL4
−
|Cui Ge (U. Iowa)<br>Jun Wang (U. Iowa)
+
|Lizzie Lundgren (Harvard)
−
|Science
+
|GC-Classic
 +
|Medium
 
|
 
|
−
*Delivered to GCST (Nov 2017)
+
*[https://github.com/geoschem/HEMCO/issues/18 hemco issue #18]
−
*Need to implement a fix to handle missing data for the last 3 months of 2012.  Deferred to v11-03.
+
  
 
|-valign="top"
 
|-valign="top"
−
|MEIC emissions over China (2000-2015)
+
|Capture all trop and PBL height changes in budget diagnostics
−
|Lu Shen (Harvard)<br>Melissa Sulprizio (Harvard)
+
|Chris Holmes (FSU)<br>Lizzie Lundgren (Harvard)
−
|Science
+
|Diagnostics
 +
|Medium
 
|
 
|
−
*Implementation delayed until MEIC paper is published
+
*[https://github.com/geoschem/geos-chem/pull/2103 geos-chem PR 2103]
  
−
|-valign="top"
+
|}
−
|[[Mineral_dust_aerosols#Anthropogenic_PM2.5_dust_source_in_GEOS-Chem|Anthropogenic PM2.5 dust source]]
+
−
|Sajeev Philip (Dalhousie)
+
−
|Science
+
−
|
+
−
*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.
+
  
−
|-valign="top"
+
== Prioritized and in the queue ==
−
|[[FINNv1_biomass_burning_emissions|FINN biomass burning emissions for 2014-2016]]
+
−
|Barron Henderson (US EPA)
+
−
|Science
+
−
|
+
−
*Deferred to v11-03, pending receipt of corrected data files
+
  
−
|-valign="top"
+
Features listed in this table are prioritized for integration into GEOS-Chem in the near future.
−
|EPA NEI2011 Version EK
+
−
|Zitely Tzompa-Sosa (CSU)<br>Emily Fischer (CSU)
+
−
|Science
+
−
|
+
−
*Deferred to v11-03; need extra time for validation
+
  
−
|-valign="top"
+
{| border=1 cellspacing=0 cellpadding=5
−
|Grid-independent emissions, including:
+
|-bgcolor="#CCCCCC"
−
*Lightning NOx emissions (3-hourly)
+
!width="200px"|Feature
−
*Dust emissions (hourly)
+
!width="200px"|Contributor(s)
−
*Biogenic and sea salt emissions (hourly)
+
!width="100px"|Model scope
−
|Randall Martin (Dalhousie)<br>Lee Murray (Rochester)<br>David Ridley (MIT)<br>Jintai Lin (PKU)
+
!width="100px"|Ease of implementation
−
|Science
+
!width="100px"|Delivery status
−
|
+
!width="300px"|Notes and References
−
*Mostly complete, but deferred to v11-03. Need to download data from developers.
+
  
 
|-valign="top"
 
|-valign="top"
−
|EPA-derived BC/OA emissions over US (1990-2012)
+
|ALK4 & R4N2 chemistry
−
|David Ridley (MIT)<br>Chi Li (Dalhousie)
+
|Jared Brewer (UMN)
−
|Science
+
|Chemistry
 +
|TBD
 +
|Not delivered
 
|
 
|
−
*Need to coordinate between Ridley and Li versions
+
*[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"
−
|[[Sulfate_aerosols#Ocean_ammonia_emission_inventory|Ocean ammonia emission inventory]]
+
|Mass flux regridding fix in MAPL
−
|Fabien Paulot (NOAA/GFDL)
+
|Tom Clune (GMAO)<br>Seb Eastham (MIT)
−
|Science
+
|GCHP input regridding
 +
|Medium
 
|
 
|
−
*Data files delivered to GCST (Jan 2016)
 
−
*Needs to be implemented via HEMCO
 
−
 
−
|-valign="top"
 
−
|[http://www.atmos-chem-phys.net/16/2819/2016/ A snow NOx source from deep snowpack]
 
−
|Maria Zatko (UW)<br>Becky Alexander (UW)
 
−
|Science
 
 
|
 
|
−
*Delivered to GCST (Nov 2017)
+
*[https://github.com/geoschem/GCHP/issues/377 GCHP Issue #377]
−
*Implemented in v9-01-01
+
*'''Currently on hold, as the submitted update results in zero diff'''
−
*Needs to be added as a HEMCO extension
+
  
 
|-valign="top"
 
|-valign="top"
−
|[[MASAGE_NH3_inventory|MASAGE inventory in HEMCO as default]]
+
|New version of CEDS at 0.1 deg
−
|Fabien Paulot (NOAA/GFDL)<br>Amos Tai (CUHK)
+
|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.'''
  
 +
|}
  
−
|-valign="top"
+
== Ready to go in ==
−
|[[MASAGE_NH3_inventory#Non-agricultural_NH3_for_use_with_MASAGE|Non-agricultural NH3 for use with MASAGE]]
+
−
|Amos Tai (CUHK)
+
−
|Science
+
−
|
+
  
−
|-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.
−
|Radon emission update
+
−
|Bo Zhang (NIA/NASA Langley)
+
−
|Science
+
−
|
+
−
*Delivered to GCST (Nov 2017)
+
−
*Implementation pending paper submission
+
  
−
|-valign="top"
+
{| border=1 cellspacing=0 cellpadding=5
−
|GFAS biomass burning emissions
+
|-bgcolor="#CCCCCC"
−
|Mat Evans (York)
+
!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"|Deposition/surface updates
+
  
 
|-valign="top"
 
|-valign="top"
−
|Wet scavenging in mixed-phase clouds
+
|KORUS-AQ emissions for East Asia (as an option)
−
|Bo Zhang (NIA/NASA Langley)
+
|Katie Travis (NASA)
−
|Science
+
|Emissions
 +
|Simple
 
|
 
|
−
*Delivered to GCST (Nov 2017)
 
−
*Only applied/tested for Pb
 
−
*Implementation pending paper submission
 
  
 
|-valign="top"
 
|-valign="top"
−
|Harmonizing Henry's Law coefficients across wet and dry deposition
+
|Geologic emission of ethane and propane
−
|[[GCST]]
+
|Matthew Rowlinson and Mat Evans(York)
−
|Science
+
|Emissions
 +
|Delivered<br>Jan 2023
 
|
 
|
−
*Work not started yet. Will need input from the community.
+
*Global source from https://doi.org/10.1038/s41561-018-0073-0 with spatial distribution from https://doi.org/10.5194/essd-11-1-2019
  
 
|-valign="top"
 
|-valign="top"
−
|[[Aerosols_Working_Group#Sedimentation_of_stratospheric_aerosols|Sedimentation of stratospheric aerosols]]
+
|[https://github.com/geoschem/geos-chem/pull/629 Ecophysiology module in GEOS-Chem for biosphere-atmosphere exchange]
−
|Sebastian Eastham (Harvard)
+
|Joey Lam(CUHK)<br>Amos Tai (CUHK)
 
|Science
 
|Science
 +
|Delivered<br>Feb 2021
 
|
 
|
−
 
+
*[https://github.com/geoschem/geos-chem/pull/629 geos-chem PR #629]
−
|-
+
−
!colspan="4" bgcolor="#CCFFFF"|Aerosol updates
+
  
 
|-valign="top"
 
|-valign="top"
−
|Sea salt aerosol alkalinity
+
|LPJ land cover (global), fire (W US), dust emissions (SW N America), 1700-2100
−
|Qianjie Chen (UW)<br>Becky Alexander (UW)<br>Xuan Wang (Harvard)
+
|Yang Li (Baylor University)<br>Loretta Mickley (Harvard)
−
|Science
+
|Emissions
 +
|Delivered<br>Jul 2021
 
|
 
|
−
*UW version delivered to GCST (Nov 2017)
+
*Data involves many files- need to think about temporal frequency
  
 
|-valign="top"
 
|-valign="top"
−
|VBS SOA option
+
|[https://github.com/geoschem/geos-chem/issues/1867 Online H2 chemistry]
−
|Rokjin Park (SNU)
+
|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
−
!colspan="4" bgcolor="#CCFFFF"|Specialty simulation updates
+
  
 
|-valign="top"
 
|-valign="top"
−
|Oxidant fields from v10 for 2006-2012
+
|DMS Chemistry
−
*3D chemical source for CO2, CO
+
|Linia Tashmim (UC Riverside)<br>William Porter (UC Riverside)
−
*OH for tagged CO & CH4
+
|Chemistry
−
|Dylan Jones (UofT)
+
|Not delivered
−
|Science
+
 
|
 
|
−
*Will make data files available on ftp site
 
  
 
|-valign="top"
 
|-valign="top"
−
|Year 2010 ocean Hg boundary conditions from ocean model
+
|Organic acids (RCOOH)
−
|Hannah Horowitz (Harvard)
+
|Katie Travis (NASA)
−
|Science
+
|Chemistry
 +
|Not delivered
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Historical products emissions from Zhang et al. (2016), should become default
+
|Improve carbon & nitrogen conservation in reactions
−
|Colin Thackray (Harvard)
+
|Kelvin Bates (Harvard)
−
|Science
+
|Chemistry
 +
|Not delivered
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|AMAP/UNEP 2035 for Hg simulation
+
|Blowing snow sea salt in TOMAS
−
|Helene Angot (MIT)
+
|Betty Croft (Dalhousie)
−
|Science
+
|Aerosols
 +
|Not delivered
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Africa nested-grid for GEOS-FP and MERRA-2
+
|[https://pubs.rsc.org/en/content/articlelanding/2022/EM/D2EM00019A Australian anthropogenic Hg emissions]
−
|Eloise Marais (U. Birmingham)
+
|Stephen MacFarlane (UOW)<br>Jenny Fisher (UOW)<br> Hannah Horowitz (U. Illinois)<br>Viral Shah (Harvard)
−
|Science
+
|Hg simulation
 +
|Not delivered
 
|
 
|
−
*Delivered to GCST (Dec 2017)
 
  
 
|-valign="top"
 
|-valign="top"
−
|West Africa nested-grid for GEOS-FP
+
|WRF-GC Hg simulation
−
|Mat Evans (York)<br>Eleanor Morris (York)
+
|Xiaotian Xu (Nanjing U.)<br>Yanxu Zhang (Nanjing U.)
−
|Science
+
|Hg simulation<br>WRF-GC
 +
|Not delivered
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|[[Sulfate_aerosols#Tagged_sulfate_and_nitrate_simulation|Tagged sulfate simulation]]
+
|Updated HgII gas-partical partitioning
−
|Becky Alexander (UW)
+
|Kaiyun Liu (Tsinghua U.)<br>Qingru Wu (Tsinghua U.)<br>Shuxiao Wang (Tsinghua U.)
−
|Science
+
|Hg simulation
 +
|Not delivered
 
|
 
|
 +
*Should be option, not default
  
 
|-valign="top"
 
|-valign="top"
−
|Arsenic simulation
+
|Dry deposition to F90 (readability)
−
|Shiliang Wu (MT)
+
|Chris Holmes (FSU)
−
|Science
+
|Dry deposition
 +
|Not delivered
 
|
 
|
  
−
|-
 
−
!colspan="4" bgcolor="#CCFFFF"|Structural updates
 
−
 
−
|-valign="top"
 
−
|Updated flux diagnostics
 
−
|Chris Holmes (Florida State)<br>[[GCST]]
 
−
|Structural/<br>Benchmarking
 
−
|
 
−
*Deferred to v11-03
 
−
 
−
|-valign="top"
 
−
|Additional modifications for [[FlexChem]], including:
 
−
*Rebuild the pre-built chemistry mechanisms (Standard, Tropchem, SOA-SVPOA) with [http://www.paratools.com/Kppa Kppa]
 
−
*Add capability for custom chemistry mechanism by building KPP on-the-fly in GEOS-Chem
 
−
|[[GCST]]
 
−
|Structural
 
−
|
 
−
*Work not started yet
 
−
 
−
|-valign="top"
 
−
|Benchmark of stratospheric simulation
 
−
|Dylan Jones (U. Toronto)
 
−
|Benchmarking
 
−
|
 
−
*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 v11-03 ===
+
== 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.
+
|Assess memory leak in GCHP
−
|Sarah Safieddine (MIT)<br>GCST
+
|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]. Will wait until MAPL3 to further assess.
  
 
|-valign="top"
 
|-valign="top"
−
|Archive GISS met fields from RCP scenarios for community
+
|Hybrid MPI-OpenMP in GCHP
−
|Lee Murray (Rochester)
+
|Seb Eastham (MIT)<br>Killian Murphy (York)
−
|Science
+
|Model performance
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Online O3-LAI coupling in GEOS-Chem
+
|Improve pressure handling in GCHP advection
−
|Amos Tai (CUHK)
+
|Seb Eastham (MIT)<br>Yuanjian Zhang (WashU)
−
|Science
+
|GCHP
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Clean up SOA diagnostics
+
|Use ExtData2G as default GCHP input module
−
|GCST
+
|Lizzie Lundgren (Harvard)
−
|Structural
+
|GCHP
−
|
+
|Will replace ExtData.rc with yaml file
  
−
|-valign="top"
+
|}
−
|Calculation consistency throughout code: surface area, HGF (via species database)
+
−
|GCST
+
−
|Structural
+
−
|
+
  
−
|}
+
== 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"
 
|-valign="top"
−
|Farquhar-Ball-Barry model to calculate stomatal resistance
+
|MAPL version 3
−
|Amos Tai (CUHK)<br>Jeff Geddes (BU)
+
|Lizzie Lundgren (Harvard)
−
|Science
+
|GCHP
−
|
+
|Will include History wildcard handling in GCHP
  
−
|-valign="top"
 
−
|Impacts of chemistry on ecosystem/carbon cycle
 
−
|Kevin Bowman (JPL)<br>Anthony Bloom (JPL)
 
−
|Science
 
−
|
 
  
 
|-valign="top"
 
|-valign="top"
−
|Improved lightning emission scheme
+
|Migrate benchmark meteorology from MERRA2 to GEOS-IT
−
|Lee Murray (Rochester)
+
|GCST
−
|Science
+
|Benchmarking
 
|
 
|
  
−
|-valign="top"
+
|}
−
|Resolution-independent lightning NOx
+
−
|Lee Murray (Rochester)
+
−
|Science
+
−
|
+
  
−
|-valign="top"
+
== Longer term (12-24 months)==
−
|Bidirectional NH3 emissions
+
−
|Juliet Zhu (CSU)
+
−
|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.
−
|Country-based weekday/weekend variability for EDGAR 4.2
+
−
|Lee Murray (Rochester)<br>Christoph Keller (Harvard)
+
−
|Science
+
−
|
+
  
−
|-valign="top"
+
{| border=1 cellspacing=0 cellpadding=5
−
|Update keytone photolysis
+
|- bgcolor="#cccccc"
−
|Jared Brewer (CSU)<br>Emily Fischer (CSU)
+
!width="200px"|Feature
−
|Science
+
!width="200px"|Contributor(s)
−
|
+
!width="100px"|Model scope
 +
!width="420px"|Notes and References
  
 
|-valign="top"
 
|-valign="top"
−
|Small alkyl nitrates
+
|Updates to Aromatic chemistry
−
|Jenny Fisher (Wollongong)
+
|Stephen MacFarlane (UOW)<br>Jenny Fisher (UOW)
−
|Science
+
|Chemistry
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|YIBS-GC chemistry-biosphere-fire coupling
+
|Nitrate photolysis
−
|Loretta Mickley (Harvard)<br>Xu Yue (IAP)
+
|Mat Evans (York)<br>Thomas Sherwen (York)<br>Matthew Rowlinson (York)
−
|Science
+
|Chemistry
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Nitrogen-LAI coupling
+
|In aerosol chemistry Halogens
−
|Lin Zhang (PKU)<br>Amos Tai (CUHK)
+
|Mat Evans (York)<br>Hansen Cao (CU Boulder)
−
|Science
+
|Chemistry
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Implementing humidity/VPD dependence of dry deposition
+
|Benchmark box model of GC Chemistry
−
|Jennifer Murphy (U. Toronto)
+
|Katie Travis (NASA)
−
|Science
+
|Chemistry
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|SO2 wet scavenging
+
|Alkyl nitrates Alk7, PHAN
−
|Duncan Fairlie (NASA Langley)
+
|Katie Travis (NASA)
−
|Science
+
|Chemistry
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Heterogeneous sulfate production
+
|Add stratospheric ozone species to full-chemistry simulations
−
|Lin Zhang (PKU)<br>Becky Alexander (UW)<br>Yuxuan Wang (U. Houston)
+
|Lee Murray (Rochester)
−
|Science
+
|Chemistry
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|MOSAIC implementation
+
|Perchlorate chemistry
−
|Sebastian Eastham (Harvard)
+
|Yuk Chun Chan (UWAB)
−
|Science
+
|Chemistry
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Particle size climatology
+
|Explicit heterogeneous sulfate chemistry
−
|Fangqun Yu (SUNY Albany)
+
|Katie Travis (NASA)<br>Becky Alexander (UT)
−
|Science
+
|Chemistry
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Sea salt/dust size distribution
+
|HOx and ozone "emissions" from lightning as option in model to play with
−
|David Ridley (MIT)<br>Colette Heald (MIT)
+
|Jingqiu (Alaska)<br>Lee Murray (Rochester)
−
|Science
+
|Emissions
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Updates to GTMM
+
|Sea salt aerosol from sea ice leads
−
|Rebecca Stern (Harvard)
+
|Hannah Horowitz (U. Illinois)
−
|Science
+
|Emissions
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Tracer transport ocean
+
|Drought-stress algorithm
−
|Chris Holmes (FSU)
+
|Wei Li (U. Houston)
−
|Science
+
 
|
 
|
−
 
−
|-valign="top"
 
−
|Include Hg in full chemistry simulation
 
−
|Noelle Selin (MIT)
 
−
|Science
 
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Goddard seasonal weather prediction in GCHP
+
|Biomass burning injection height profiles
−
|Kevin Bowman (JPL)
+
|Inderjeet Singh (WashU)
−
|Science
+
|Emissions
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Climate index diagnostics (drought, etc.)
+
|OCIM integration
−
|Chemistry-ecosystems-climate WG
+
|Chris Holmes (FSU)<br>Lee Murray (Rochester)
−
|Structural
+
|
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Joint CO/CO2/CH4 simulation
+
|Updating landcover products in GEOS-Chem
−
|Nicholas Deutscher (U. Wollongong)
+
|Chris Holmes (FSU)<br>Jeff Geddes (BU)
−
|Science
+
|Input data
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Carbon coupling: oceans and terrestrial models
+
|Dry deposition physical improvement
 
|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 20:39, 2 May 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
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
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)
Assess memory leak in GCHP Killian Murphy (York) Model performance
Hybrid MPI-OpenMP in GCHP Seb Eastham (MIT)
Killian Murphy (York) 		Model performance
Improve pressure handling in GCHP advection Seb Eastham (MIT)
Yuanjian Zhang (WashU) 		GCHP
Use ExtData2G as default GCHP input module Lizzie Lundgren (Harvard) GCHP Will replace ExtData.rc with yaml file

Over the horizon (6-12 months)

Features listed in this table are in development and will likely be delivered to the GEOS-Chem Support Team in the 6-12 months timeframe.

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
MAPL version 3 Lizzie Lundgren (Harvard) GCHP Will include History wildcard handling in GCHP


Migrate benchmark meteorology from MERRA2 to GEOS-IT GCST Benchmarking

Longer term (12-24 months)

Features listed in this table are in development and will likely be delivered to the GEOS-Chem Support Team in the 12-24 months timeframe.

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
Retrieved from "https://wiki.seas.harvard.edu/geos-chem/index.php?title=GEOS-Chem_model_development_priorities&oldid=53346"