GEOS-Chem model development priorities
On this page we list the current priorities for GEOS-Chem development. This list was compiled by the user Working Groups at the last International GEOS-Chem Meeting (IGC8) in May 2017 and was updated in May 2018 following the release of v11-02 which included a number of these priorities. This list will be continuously updated based on code readiness and input from the Working Groups and the Steering Committee.
We also invite you to view our GEOS-Chem Support Team project management board on Trello.com, which shows the current GCST workflow.
Contents
Priorities assigned to upcoming GEOS-Chem versions
These items have been priorities by the GEOS-Chem Steering Committee, and will be added in the order listed below.
12.3.0
The items listed below are slated to be included in GEOS-Chem 12.3.0. This is a feature release which will be validated with a 1-month benchmark simulation.
Feature | Submitted by | Type | Status |
---|---|---|---|
Features affecting the full-chemistry simulation: | |||
Update ISORROPIA from v2.0 to v2.2, in order to remove persistent noise in output | Seb Eastham (Harvard) | Science |
|
Update MODIS LAI fields for 2005-2016 using Yuan et al. (2011) | Jenny Fisher (Wollongong) Barron Henderson (US EPA) |
Science |
|
Extend UCX into the mesosphere | Sebastian Eastham (MIT) | Science | |
OMI-based Volcanic emissions 2005-2012 | Cui Ge (U. Iowa) Jun Wang (U. Iowa) |
Science |
|
12.2.0
The items listed below are slated to be included in GEOS-Chem 12.2.0. This is a feature release which will be benchmarked with a 1-month benchmark simulation and a 1-year Rn-Pb-Be benchmark simulation.
Feature | Submitted by | Type | Status |
---|---|---|---|
Features NOT affecting the full-chemistry simulation: | |||
Common set of tracers in GEOS-Chem and GEOS | Transport WG GCST |
Benchmarking |
|
12.1.0
The items listed below are slated to be included in GEOS-Chem 12.1.0. This is a feature release which will be validated with a 1-month benchmark simulation.
Feature | Submitted by | Type | Status |
---|---|---|---|
Features affecting the full-chemistry simulation: | |||
FlexGrid: Use HEMCO to read met fields and enable nested simulations over any custom domains | Jiawei Zhuang (Harvard) Jintai Lin (PKU) |
Structural |
|
Anthropogenic PM2.5 dust source | Sajeev Philip (Dalhousie) | Science |
|
NetCDF Output Phase 3b: Updates to eliminate differences between single and multi-segmented GEOS-Chem runs | GCST Christoph Keller |
Bug Fix & Structural |
|
Features NOT affecting the full-chemistry simulation: | |||
Updated flux diagnostics | Chris Holmes (Florida State) GCST |
Structural/ Benchmarking |
12.0.0
VERSION CURRENTLY IN DEVELOPMENT
GEOS-Chem v11-02-final will also carry the designation GEOS-Chem 12.0.0. We are migrating to a purely numeric versioning system in order to adhere more closely to software development best practices. For a complete description of the new versioning system, please see our GEOS-Chem version numbering system wiki page.
The following updates and fixes are slated to be added to GEOS-Chem 12.0.0 (aka v11-02-final). Many of these updates fix issues that were identified during the GEOS-Chem v11-02 release candidate testing period.
Please see the following link for complete information about the validation of GEOS-Chem 12.0.0:
- Approval form for 1-month benchmark simulation 12.0.0
- Results for 1-year benchmark simulation 12.0.0-Run0
Feature | Submitted by | Type | Status |
---|---|---|---|
Features affecting the full-chemistry (benchmark) simulation: | |||
Turn off TRASH emissions by default to avoid double counting | GCST Eloise Marais (U. Birmingham) |
Bug fix | Implemented 27 Jul 2018
|
Add entries to HEMCO_Config.rc for SOAP and pFe in CEDS inventory | GCST | Bug fix | Implemented 27 Jul 2018
|
Bug fix for liquid water content in gckpp_HetRates.F90 | Jiayue Huang (U. Washington) Quanjie Chen (U. Washington) |
Bug fix | Implemented 19 Jul 2018
|
Bug fix for CH4 boundary conditions | Lee Murray (Rochester) | Bug fix | Implemented 19 Jul 2018
|
Fixed typo in call to GAMMA_HOBr_AER | Xuan Wang GCST |
Bug fix | Implemented 18 Jul 2018
|
Correct issues when specifying DICE-Africa emissions: | Eloise Marais (U. Birmingham) GCST |
Bug Fix | Implemented 16 Jul 2018.
|
Add missing Criegee intermediate reaction | Xin Chen (UMN) | Bug fix | Implemented 11 Jul 2018, pending validation
|
Bug fix for ARCTAS_SHIP in HEMCO_Config.rc files | Barron Henderson (EPA) | Bug Fix | Implemented 03 Jul 2018
|
Bug fix in FlexChem: do not zero out ACTA, EOH, HCOOH concentrations | Katie Travis (MIT) | Bug Fix | Implemented 27 Jun 2018
|
Add GFED4.1 data for 2015 and 2016; Use GFED4.1 2016 in benchmarks | Kate O'Dell (CSU) GCST |
Science | Data files downloaded 27 Jun 2018
|
Features NOT affecting the full-chemistry simulation: | |||
Minor fixes for mercury chemistry updates implemented in v11-02f | Colin Thackray (Harvard) | Bug fix | Implemented 02 Aug 2018 |
Restore default timestep for MERRA-2 nested grid simulations to 10/20 | Ke Li (Harvard) | Bug fix | Implemented 30 Jul 2018 |
Remove duplicate C3HI spectrum in FJX_spec.dat and FJX_j2j.dat | Tomas Sherwen (York) | Bug fix | Implemented 27 Jul 2018
|
Fixed typo that prevented PM2.5 from being archived to netCDF output | Jonathan Moch (Harvard) GCST |
Bug fix | Implemented 24 Jul 2018 |
Bring two-way nested-grid code option up-to-date | Yingying Yan (PKU) Jintai Lin (PKU) |
Structural | Implemented 24 Jul 2018
|
Do not force L=1 by default in planeflight_mod.F | Katie Travis (MIT) GCST |
Bug fix | Implemented 23 Jul 2018 |
Add PH2O2 to the default list of prod/loss families in the KPP mechanisms | GCST | Structural | Implemented 19 Jul 2018
|
Update to HEMCO v2.1.007, which includes minor updates: | GCST Christoph Keller Jenny Fisher |
Structural & Bug fix |
Update history:
|
Bug fix for reference time in netCDF diagnostic files | GCST | Bug fix | Implemented 12 Jul 2018 |
Updates for QFED biomass burning emissions: | Christoph Keller (NASA GMAO) | Bug fix | Update history:
|
Fix issues in complexSOA and complexSOA_SVPOA restart files | Eloise Marais (U. Birmingham) | Bug fix | Implemented 05 Jul 2018 |
Avoid double counting CEDS and GEIA NH3 biofuel emissions | Christoph Keller (NASA/GMAO) GCST |
Bug fix | Implemented 29 Jun 2018
|
Bug fixes for v11-02 simulations using the RRTMG radiative transfer model | Chris Holmes (U. Florida) | Bug Fix | Implemented 26 Jun 2018
|
Now always declare the netCDF time variable with an unlimited dimension | Chris Holmes (U. Florida) | Structural | Implemented 26 Jun 2018
|
Priorities not yet assigned to a particular version
The following items have been identified as priorities for GEOS-Chem but have not yet been assigned to a particular GEOS-Chem version.
Ready to go in
The following updates are now being considered for inclusion into GEOS-Chem.
Feature | Submitted by | Type | Status |
---|---|---|---|
Emissions and surface fluxes updates | |||
Carbon bottom up fluxes: anthro, ocean, land | Kevin Bowman (JPL) | Science | Kevin Bowman wrote:
|
Aerosol updates | |||
Sea salt aerosol alkalinity | Qianjie Chen (UW) Becky Alexander (UW) Xuan Wang (Harvard) |
Science |
|
VBS SOA option | Rokjin Park (SNU) | Science |
|
Specialty simulation updates | |||
AMAP/UNEP 2035 for Hg simulation | Helene Angot (MIT) | Science |
|
Oxidant fields from v10 for 2006-2012
|
Dylan Jones (UofT) | Science |
|
Africa nested-grid for GEOS-FP and MERRA-2 | Eloise Marais (U. Birmingham) | Science |
|
West Africa nested-grid for GEOS-FP | Mat Evans (York) Eleanor Morris (York) |
Science |
|
Tagged sulfate simulation | Becky Alexander (UW) | Science | |
Arsenic simulation | Shiliang Wu (MT) | Science | |
GCHP updates | |||
None | |||
Structural updates | |||
Benchmark of stratospheric simulation | Dylan Jones (U. Toronto) | Benchmarking |
|
Add total column O3 to benchmarks | Chris Holmes (FSU) GCST |
Benchmarking |
|
ObsPack diagnostic as netCDF replacement for planeflight_mod.F | Andy Jacobson (NOAA/ESRL) | Structural |
|
Further structural updates to facilitate interfacing GEOS-Chem with external models (e.g. WRF, CAM, CESM) | GCST | Structural |
|
Expansion of model capabilities | |||
Archival of roughness length for temperature z0T | GCST | Met processing |
|
--Bob Yantosca (talk) 19:04, 2 August 2018 (UTC)
Almost there (< 6 months)
Item | Author(s) | Type | Status |
---|---|---|---|
Transport updates | |||
GEOS resolution & subgrid convection | Karen Yu (Harvard) | Science |
|
Chemistry updates | |||
N2O5 hydrolysis updates | Viral Shah (UW) | Science |
|
H2 chemistry in UCX | Chris Holmes (FSU) | Science |
|
Updated chlorine chemistry | Xuan Wang (Harvard) | Science |
|
ND49 timeseries diagnostic for correcting ozone from the height of the lowest model level to 10m | Katie Travis (MIT) | Structural |
|
OH + NO2 rate update | Barron Henderson (EPA) | Science | |
Script for checking N, C, etc. balance in chemistry mechanism | Barron Henderson (EPA) | Software | Barron Henderson wrote:
|
Aromatics and dicarbonyl chemistry | William Porter (MIT) Tzung-May Fu (PKU) |
Science | |
Document chemical mechanism in KPP file | Mat Evans (York) | Structural | |
Diurnal variability for NH3 | Henze group | Science | Daven Henze wrote:
|
Uptake of HNO3 onto coarse-mode sea salt | Prasad Kasibhatla (Duke) | Science | |
Photolysis of NITs | Prasad Kasibhatla (Duke) | Science | |
Emissions updates | |||
Grid-independent lightning NOx emissions (3-hourly) | Lee Murray (Rochester) | Science |
|
Grid-independent dust emissions (hourly) | David Ridley (MIT) | Science |
|
Grid-independent biogenic emissions (hourly) | Jintai Lin (PKU) | Science |
|
Grid-independent sea salt emissions (hourly) | Jintai Lin (PKU) | Science |
|
EPA-derived BC/OA emissions over US (1990-2012) | David Ridley (MIT) Chi Li (Dalhousie) |
Science |
|
FINN biomass burning emissions for 2014-2016 | Barron Henderson (US EPA) | Science |
|
EPA NEI2011 Version EK | Zitely Tzompa-Sosa (CSU) Emily Fischer (CSU) |
Science |
|
GFAS biomass burning emissions | Mat Evans (York) | Science | Mat Evans wrote:
|
MASAGE inventory in HEMCO as default | Fabien Paulot (NOAA/GFDL) Amos Tai (CUHK) |
Science |
|
Non-agricultural NH3 for use with MASAGE | Amos Tai (CUHK) | Science |
|
Ocean ammonia emission inventory | Fabien Paulot (NOAA/GFDL) | Science |
|
Injection height for fire emissions | Juliet Zhu (CSU) Emily Fischer (CSU) |
Science |
|
Surface fluxes and land usage updates | |||
Land cover module: Harmonized biosphere-atmosphere exchange and implementing CLM or manual land cover change experiments | Jeff Geddes (BU) | Science |
|
Online O3-LAI coupling in GEOS-Chem | Amos Tai (CUHK) | Science | |
Wet deposition updates | |||
Wet deposition parameterizations: pH dependency, Henry's law coefficients, etc. | Sarah Safieddine (MIT) GCST |
Science | |
Wet scavenging in mixed-phase clouds | Bo Zhang (NIA/NASA Langley) | Science |
|
Specialty simulation updates | |||
Radon emission update | Bo Zhang (NIA/NASA Langley) | Science |
|
PCB simulation | Colin Thackray (Harvard) Carey Friedman (formerly MIT) Helen Amos (formerly Harvard) |
Science | |
New EDGAR sectoral inventory for Hg (1970-2012) | Amanda Giang (MIT) | Science | |
Archive GISS met fields from RCP scenarios for community | Lee Murray (Rochester) | Science | |
GCHP updates | |||
New version of MAPL | GMAO Lizzie Lundgren (GCST) |
Structural | |
Flux ingestion | Sebastian Eastham (MIT) | Science | |
Structural updates | |||
Clean up SOA diagnostics | GCST | Structural |
|
Calculation consistency throughout code: surface area, HGF (via species database) | GCST | Structural | |
Harmonizing Henry's Law coefficients across wet and dry deposition | GCST | Science |
|
Expansion of model capabilities | |||
CESM-GC offline coupling in standard model + benchmark | Rokjin Park (SNU) Daniel Rothenberg (MIT) |
Science |
|
--Lizzie Lundgren (talk) 15:11, 29 June 2018 (UTC)
Over the horizon (6-12 months)
Item | Author(s) | Type | Status |
---|---|---|---|
A snow NOx source from deep snowpack | Maria Zatko (UW) Becky Alexander (UW) |
Science |
|
MEIC emissions over China (2000-2015) | Lu Shen (Harvard) Melissa Sulprizio (Harvard) |
Science |
|
GISS-GC (ICECAP/GCAP2) in standard model + benchmark | Lee Murray (Rochester) Eric Leibensperger (SUNY Plattsburgh) |
Science | Lee Murray replied:
|
GISS-GC GCHP | Lee Murray (Rochester) Pengfei Liu (Harvard) Yang Li (Harvard) |
Science |
|
CESM-GC GCHP | Seb Eastham (MIT) | Science |
|
Additional modifications for FlexChem, including:
|
GCST | Structural |
|
Dynamic fire modeling/prediction | Shiliang Wu (MNT) | Science | |
Interannually varying ocean model BCs for Hg from ocean model | Colin Thackray (Harvard) | Science | |
PAH & PFCA simulations | Peter Ivatt (York) Mat Evans (York) Noelle Selin (MIT) Colin Thackray (Harvard) |
Science | |
CH4 in full chemistry simulation | Seb Eastham (Harvard) | Science | |
Standard future land use maps (PFT, LAI) for RCP/CMIP6 simulations | Colette Heald (MIT) Loretta Mickley (Harvard) |
Science | |
Archive GISS met fields from CMIP6 scenarios for community | Lee Murray (Rochester) | Science | |
Updates to cold-temperature deposition | Lyatt Jaegle (UW) | Science | |
Simple parameterization for CO2-O3 dependence of stomatal resistance | Amos Tai (CUHK) | Science | |
NH3 emissions over China | Lin Zhang (PKU) | Science | |
Using GEOS-Chem within GEOS-5 | Loretta Mickley (Harvard) | Science | |
Carbon cycle outputs in xCO2, xCH4 as a diagnostic | Beata Bukosa (Wollongong) Dylan Jones (UofT) |
Science | |
Seasonal EMEP emissions back to 1980 | Mat Evans (York) | Science | |
Updates to NO2 dry deposition | Brian Boys (Dalhousie) | Science | |
APM update and integration with most recent GEOS-Chem version | Gan Luo (SUNY Albany) | Structural | |
Cosmogenic tracer production | Lee Murray (Rochester) | Science | |
Explore resolution-consistent dust emissions
|
David Ridley (MIT) GCST Nested Model WG |
Science | |
Dust emissions at nested-grid resolutions | Yuxuan Wang (U. Houston) Jun Wang (U. Iowa) |
Science |
|
Update SO2 scavenging in convective updrafts for consistency | Duncan Fairlie (NASA/LARC) | Science | |
Sea salt emission from sea ice | Jiayue Huang (UW) | Science | |
Uniformity of units | GCST | Structural | Lizzie Lundgren wrote:
|
--Bob Yantosca (talk) 19:42, 24 May 2018 (UTC)
Longer term (12-24 months)
Item | Author(s) | Type | Status |
---|---|---|---|
GCHP stretched grid | Jiawei Zhuang (Harvard) | Science | |
1/8 degree nested-grid simulations with GEOS-FP | Nested Model WG | Science |
|
Embedding GEOS-Chem into CESM | Jean-Francois Lamarque (NCAR) | Science |
|
Adjoint of carbon cycle simulation in GCHP | Kevin Bowman (JPL) | Science | |
Isoprene chemistry v2 (new Caltech update) | Kelvin Bates (Caltech) | Science | |
Contemporary land cover: developing historical and updated GEOS-Chem land cover maps based on satellite remote sensing | Jeff Geddes (BU) | Science | |
Farquhar-Ball-Barry model to calculate stomatal resistance | Amos Tai (CUHK) Jeff Geddes (BU) |
Science | |
Impacts of chemistry on ecosystem/carbon cycle | Kevin Bowman (JPL) Anthony Bloom (JPL) |
Science | |
Improved lightning emission scheme | Lee Murray (Rochester) | Science | |
Resolution-independent lightning NOx | Lee Murray (Rochester) | Science | |
Bidirectional NH3 emissions | Juliet Zhu (CSU) | Science | |
Country-based weekday/weekend variability for EDGAR 4.2 | Lee Murray (Rochester) Christoph Keller (Harvard) |
Science | |
Update keytone photolysis | Jared Brewer (CSU) Emily Fischer (CSU) |
Science | |
Small alkyl nitrates | Jenny Fisher (Wollongong) | Science | |
YIBS-GC chemistry-biosphere-fire coupling | Loretta Mickley (Harvard) Xu Yue (IAP) |
Science | |
Nitrogen-LAI coupling | Lin Zhang (PKU) Amos Tai (CUHK) |
Science | |
Implementing humidity/VPD dependence of dry deposition | Jennifer Murphy (U. Toronto) | Science | |
SO2 wet scavenging | Duncan Fairlie (NASA Langley) | Science | |
Heterogeneous sulfate production | Lin Zhang (PKU) Becky Alexander (UW) Yuxuan Wang (U. Houston) |
Science | |
MOSAIC implementation | Sebastian Eastham (Harvard) | Science | |
Particle size climatology | Fangqun Yu (SUNY Albany) | Science | |
Sea salt/dust size distribution | David Ridley (MIT) Colette Heald (MIT) |
Science | |
Updates to GTMM | Rebecca Stern (Harvard) | Science | |
Tracer transport ocean | Chris Holmes (FSU) | Science | |
Include Hg in full chemistry simulation | Noelle Selin (MIT) | Science | |
Goddard seasonal weather prediction in GCHP | Kevin Bowman (JPL) | Science | |
Climate index diagnostics (drought, etc.) | Chemistry-ecosystems-climate WG | Structural | |
Joint CO/CO2/CH4 simulation | Nicholas Deutscher (U. Wollongong) | Science | |
Carbon coupling: oceans and terrestrial models | Chris Holmes (FSU) | Science |
|
DMS oxidation scheme updating | Qianjie Chen (UW) Chemistry WG |
Science | |
Limiting NH3 uptake due to OA | Rachel Silvern (Harvard) | Science |
--Bob Yantosca (talk) 15:32, 23 May 2018 (UTC)