GEOS-Chem model development priorities
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.
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
12.1.0
This version is currently in development. See the GEOS-Chem 12 wiki page for details.
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 |
|
ObsPack diagnostic | Andy Jacobson (NOAA/ESRL) | Structural |
|
Replace HEMCO built-in unit conversions with scale factors in config file | GCST | Structural |
|
GFAS biomass burning emissions (as an option) | Mat Evans (York) Killian Murphy (York) |
Science |
|
GCHP restart file updates | GCST | Bug Fix & Structural |
|
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 |
|
Updated PFT file for MEGAN | Jenny Fisher (Wollongong) Dylan Millet (UMN) |
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 |
|
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
Feature | Submitted by | Type | Status |
---|---|---|---|
Chemistry updates | |||
Aromatic chemistry with the SAPRC-11 mechanism | Yingying Yan (China University of Geosciences) | Science |
|
Emissions and surface fluxes updates | |||
Carbon bottom up fluxes: anthro, ocean, land | Kevin Bowman (JPL) | Science | Kevin Bowman wrote:
|
Grid-independent dust emissions (hourly) | David Ridley (MIT) | Science |
|
Wet deposition updates | |||
Wet deposition parameterizations: pH dependency, Henry's law coefficients, etc. | Sarah Safieddine (MIT) GCST |
Science | |
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 | |||
Update to redistribution of mass in transport | Seb Eastham (MIT) | Science |
|
Structural updates | |||
Benchmark of stratospheric simulation | Dylan Jones (U. Toronto) | Benchmarking |
|
Add total column O3 to benchmarks | Chris Holmes (FSU) GCST |
Benchmarking |
|
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 |
|
Transport families in the stratosphere | Christoph Keller (NASA GMAO) | 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 | |
Update heterogeneous processes to address high bias in nitrate | Chris Holmes (FSU) | Science | |
Aerosol updates | |||
Update to hygroscopic growth | Robyn Latimer (Dalhousie) Randall Martin (Dalhousie) |
Science | |
Emissions updates | |||
Grid-independent lightning NOx emissions (3-hourly) | Lee Murray (Rochester) | 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 |
|
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 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 | |
Use CMake to simplify GCHP build process | Liam Bindle (Dalhousie) | Structural | |
Structural updates | |||
FlexGrid Stage 2: Enable nested simulations over any custom domains | Jiawei Zhuang (Harvard) Melissa Sulprizio (GCST) |
Structural | |
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 |
--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 | |
Uniformity of units throughout GEOS-Chem components | GCST | Structural |
--Bob Yantosca (talk) 15:32, 23 May 2018 (UTC)