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 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
List of priorities as of May 2017
The items listed below are in different stages of readiness and will be included in future versions of the model.
Awaiting release
Items awaiting release will be part of the next version release of GEOS-Chem and are actively being incorporated into the standard model and benchmarked. More information on those items can be obtained on the GEOS-Chem v11-02 wiki page.
Item | Author(s) | Status |
---|---|---|
Science updates | ||
Updating chemistry rate constants based on JPL Publication 15-10 | Barron Henderson (U. Florida) Mat Evans (U. York) Oxidants and Chemistry WG |
|
PAN updates (including emissions, deposition, species, chemistry) | Emily Fischer (CSU) |
|
Monthly mean NEI2011 emissions | GCST Katie Travis (Harvard) |
|
Structural/programming updates | ||
TBD | ||
Documentation | ||
TBD |
--Melissa Sulprizio (talk) 17:19, 11 May 2017 (UTC)
Ready to go in
Slated for inclusion in v11-02
The following items were prioritized for inclusion in GEOS-Chem v11-02.
Item | Author(s) | Type | Status |
---|---|---|---|
Chemistry updates | |||
Updates to isoprene chemistry, includes:
|
Jenny Fisher (U. Wollongong) Eloïse Marais (Harvard) Katie Travis (Harvard) Kelvin Bates (Caltech) Rebecca Schwantes(Caltech) |
Science |
|
Enhance default GEOS-Chem simple SOA | Aerosol Working Group Chairs | Science |
|
Add aqueous isoprene uptake to SOA scheme | Eloise Marais (Harvard) | Science |
|
Halogen chemistry updates | Tomás Sherwen (York) Johan Schmidt (Harvard) Oxidants and Chemistry WG |
Science |
|
Update density of BC to 1.8 and add absorption enhancement factor in input.geos | Xuan Wang (MIT) | Science | |
Monthly mean surface methane distributions | Lee Murray (NASA GISS/LDEO) | Science |
|
Remove initial stratospheric 2D mixing ratio option | Seb Eastham (Harvard) | Science |
|
UCX stratospheric water boundary condition update | Chris Holmes (UC Irvine) Seb Eastham (Harvard) |
Science |
|
Radon flux diagnostic | GCST | Benchmarking |
|
Emission updates | |||
EDGAR v4.3 emissions | Chi Li (Dalhousie) | Science |
|
EPA-derived BC/OA emissions over US (1990-2012) | David Ridley (MIT) | Science | |
Historical CAC emissions | Chi Li (Dalhousie) | Science |
|
Default US emissions to NEI after 2011 | Dalhousie group | Science | |
Ammonia from Arctic birds | Dalhousie group | Science | |
Ocean ammonia emission inventory | Fabien Paulot (NOAA/GFDL) | Science |
|
A snow NOx source from deep snowpack | Maria Zatko (UW) Becky Alexander (UW) |
Science |
|
Non-agricultural NH3 for use with MASAGE | Amos Tai (CUHK) | Science | |
Deposition/surface updates | |||
Fix to direct/diffuse radiation | Katie Travis (Harvard) | Science | |
Species Database Phase 3:
|
GCST | Science | |
Updated organic deposition | Katie Travis (Harvard) Jenny Fisher (U. Wollongong) |
Science | |
Remove dependence of species drydep on HNO3 drydep | Katie Travis (Harvard) Jenny Fisher (U. Wollongong) |
Science | |
Sedimentation of stratospheric aerosols | Sebastian Eastham (Harvard) | Science | |
Structural updates | |||
Uniformity of units | GCST | Structural |
|
NetCDF Output Phase 3a: Output diagnostics in NetCDF format | GCST | Structural | |
NetCDF Output Phase 3b: Updates to eliminate differences between single and multi-segmented GEOS-Chem runs | GCST Christoph Keller |
Bug fix/Structural | |
Hg and POPs updates | |||
PCB simulation | Carey Friedman (MIT) Helen Amos (Harvard) |
Science | |
Hg code updates (chemistry, ocean, land) | Hg and POPs Working Group | Science | |
Surface ocean Hg boundary conditions from MITgcm | Hannah Horowitz (Harvard) | Science | |
Expansion of model capabilities | |||
Additional modifications for FlexChem, including:
|
Mike Long (Harvard) GCST |
Structural | |
FlexGrid: Use HEMCO I/O and regridding capabilities to read and regrid met fields | Jiawei Zhuang (Harvard) Jintai Lin (PKU) |
Structural |
|
Merge standard simulation with specialty simulations for OVOC, acids, aromatics, dicarbonyls, terpenes | Dylan Millet (UMN) Xin Chen (UMN) |
Science | |
Nested CO2, CH4, Hg, TOMAS, adjoint, etc. | Nested Model Working Group | Science |
--Melissa Sulprizio (talk) 17:19, 11 May 2017 (UTC)
Defer to v11-03 unless ready in time for v11-02
Item | Author(s) | Type | Status |
---|---|---|---|
Global evaluation of using LWC and IWC from met fields for wet scavenging | Hongyu Liu (NIA/NASA LARC) Bo Zhang (NIA) |
Science | |
Kz eddy mixing scheme | Karen Yu (Harvard) | Science | |
VBS SOA option | Rokjin Park (SNU) | Science | |
Benchmark of stratosphere simulation | Dylan Jones (U. Toronto) | Benchmarking |
|
--Melissa Sulprizio (talk) 17:19, 11 May 2017 (UTC)
Not prioritized for v11-02
Item | Author(s) | Type | Status |
---|---|---|---|
Python GEOS-Chem output processing and visualization package | Benoît Bovy (U. Liège-Belgium) | Software package |
|
Sea salt emission from sea ice | Jiayue Huang (UW) | Science | |
Re-evaluation of SST dependence of sea salt emissions | Jiayue Huang (UW) | Science | |
MOSAIC implementation | Sebastian Eastham (Harvard) | Science | |
Update MODIS LAI fields through 2015 | Barron Henderson (UF) | Science | |
Lightning NOx chemistry parameterization | Alicia Gressent (MIT) | Science |
--Melissa Sulprizio (talk) 17:19, 11 May 2017 (UTC)
Almost there (< 6 months)
Item | Author(s) | Type | Status |
---|---|---|---|
PCB simulation | Colin Thackray (Harvard) Carey Friedman (formerly MIT) Helen Amos (formerly Harvard) |
Science |
--Melissa Sulprizio (talk) 17:40, 11 May 2017 (UTC)
Over the horizon (6-12 months)
Item | Author(s) | Type | Status |
---|---|---|---|
Update SO2 scavenging in convective updrafts for consistency | Duncan Fairlie (NASA/LARC) | Science | |
Dust emissions at nested-grid resolution | Yuxuan Wang (Texas A&M) Jun Wang (UNL) |
Science | |
Archive meteorological fields with higher resolution (for RCPs) | Lee Murray (NASA GISS/LDEO) | Science | |
Land cover module in GEOS-Chem | Jeffrey Geddes (MIT) Michael Long (Harvard) |
Science | |
Improved lightning emission scheme | Lee Murray (NASA GISS/LDEO) | Science | |
Archive high resolution wind fields for sea salt | GEOS-Chem Support Team | Science | |
Cl chemistry updates | Lyatt Jaeglé (UW) | Science | |
Automate redistribution of NOx in HEMCO | Lee Murray (NASA GISS/LDEO) | Science | |
Include Hg in full chemistry | Noelle Selin (MIT) | Science | |
DMS oxidation scheme updating | Tom Breider (Harvard) Becky Alexander (U. Washington) Oxidants and Chemistry Working Group |
Science |
|
Historical Hg emissions (1850-present) | Hannah Horowitz (Harvard) | Science |
|
Joint CO/CO2/CH4 forward model simulation | Nicholas Deutscher (U. Wollongong) | Science | |
Past and future fire emissions under RCPs | Loretta Mickley (Harvard) Yuhang Wang (GIT) Shiliang Wu (MT) |
Science |
|
Benchmark for 0.25x0.3125 nested NA model | Jun Wang (UNL) | Benchmarking | |
Emission scheme of dust: subgrid wind variation to remove resolution dependence and better interannual variability | David Ridley (MIT) | Science |
--Melissa Sulprizio (talk) 17:19, 11 May 2017 (UTC)
Longer term (12-24 months)
Item | Author(s) | Type | Status |
---|---|---|---|
Tagged sulfate and nitrate simulation, including
|
Becky Alexander (UW) | Science |
|
CO2 dependence of stomata conductance in dry deposition | Amos Tai (CUHK) | Science | |
Ozone damage to vegetation | Amos Tai (CUHK) | Science | |
Bi-directional NH3 emissions | Juliet Zhu (CSU) Lin Zhang (PKU) |
Science | |
Arsenic simulation | Shiliang Wu (MT) | Science | |
Dry deposition: Update the ozone dry deposition scheme | Murphy group (UofT) | Science | |
Country-based weekend/weekday variability for EDGAR v4.2 | Lee Murray (NASA GISS/LDEO) Christoph Keller (Harvard) |
Science | |
Resolution-independent lightning NOx scaling | Lee Murray (NASA GISS/LDEO) | Science | |
Nested-grid model with GEOS-FP at 1/2° x 5/8° resolution | Nested Model Working Group | Structural |
--Melissa Sulprizio (talk) 17:19, 11 May 2017 (UTC)