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 |
|
Carbon balance (fix C creation) | Sarah Safieddine (MIT) | Bug fix |
|
Other N, C, etc. balance | Barron Henderson (EPA) | External script | |
Halogen chemistry updates | Tomás Sherwen (York) Johan Schmidt (Harvard) Oxidants and Chemistry WG |
Science |
|
Sulfur oxidation by reactive halogens | Qianjie Chen (UW) | 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 |
|
Metal catalyzed oxidation of SO2 (as a switch) | Becky Alexander (UW) | Science |
|
Radon flux diagnostic | GCST | Benchmarking |
|
Mercury updates | |||
Updates to Hg chemistry from Horowitz et al. (2017) | Hannah Horowitz (U. Washington) Colin Thackray (Harvard) Rebecca Stern (Harvard) |
Science | |
Year 2010 ocean Hg boundary conditions from MITgcm | Hannah Horowitz (Harvard) | Science | |
Historical products emissions from Zhang et al. (2016), should become default | Colin Thackray (Harvard) | Science | |
Transport updates | |||
GEOS resolution & subgrid convection | Karen Yu (Harvard) | Science | |
Emission updates | |||
OMI-based Volcanic emissions 2005-2012 | Jun Wang (U. Iowa) | Science |
|
EDGAR v4.3.1 emissions | Chi Li (Dalhousie) | Science |
|
EPA-derived BC/OA emissions over US (1990-2012) | David Ridley (MIT) Chi Li (Dalhousie) |
Science |
|
Historical CAC emissions | Chi Li (Dalhousie) | Science |
|
Ammonia emissions from Arctic birds | Betty Croft (Dalhousie) | Science | |
Ocean ammonia emission inventory | Fabien Paulot (NOAA/GFDL) | Science |
|
A snow NOx source from deep snowpack | Maria Zatko (UW) Becky Alexander (UW) |
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 | |
Radon emission update | Bo Zhang (NIA/NASA Langley) | Science | |
Global ethane emissions | Zitely Tzompa (CSU) | Science | |
Inefficient combustion emissions in Africa (DICE-Africa inventory) | Eloise Marais (U. Birmingham) Christine Wiedinmyer (NCAR) |
Science | |
Trash burning emissions | Eloise Marais (U. Birmingham) Christine Wiedinmyer (NCAR) |
Science | |
GFAS biomass burning emissions | Mat Evans (York) | Science | |
MEIC emissions over China | Jonathan Moch (Harvard), Loretta Mickley (Harvard) | Science | |
Deposition/surface updates | |||
Harmonizing Henry's Law coefficients across wet and dry deposition | GCST | Science | |
Sedimentation of stratospheric aerosols | Sebastian Eastham (Harvard) | Science | |
Wet scavenging in mixed-phase clouds | Bo Zhang (NIA/NASA Langley) | Science | |
Specialty simulation updates | |||
Updated Tagged CO simulation | Jenny Fisher (Wollongong) | Science | |
India nested-grid for GEOS-5 | Sreleekha Chaliyakunnel (U. Minnesota) | Science | |
Africa nested-grid for GEOS-5 | 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 | |
Sea-salt aerosol alkalinity | Becky Alexander (UW) | Science | |
AMAP/UNEP 2035 for Hg simulation | Helene Angot (MIT) | Science | |
Arsenic simulation | Shiliang Wu (MT) | 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 | |
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 | |
Archival of roughness length for temperature z0T | GCST | Met processing |
--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 |
---|---|---|---|
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 |
---|---|---|---|
Carbon bottom up fluxes: anthro, ocean, land | Kevin Bowman (JPL) | Science | |
GISS-GC (ICECAP/GCAP2) in standard model + benchmark | Lee Murray (Rochester) Eric Leibensperger (SUNY Plattsburgh) |
Science | |
CESM-GC offline coupling in standard model + benchmark | Rokjin Park (SNU) Daniel Rothenberg (MIT) |
Science | |
CESM-GC GCHP | Daniel Rothenberg (MIT) | Science | |
Injection height for fire emissions | Juliet Zhu (CSU) Emily Fischer (CSU) |
Science | |
Diurnal variability for NH3 | Henze group | Science | |
EPA NEI2011 Version EK | Zitely Tzompa (CSU) Emily Fischer (CSU) |
Science | |
OH + NO2 rate update | Barron Henderson (EPA) | Science | |
N2O5 hydrolysis updates | Viral Shah (UW) | Science | |
Land cover module: Harmonized biosphere-atmosphere exchange and implementing CLM or manual land cover change experiments | Jeff Geddes (BU) | Science | |
H2 chemistry in UCX | Chris Holmes (FSU) | Science | |
Uptake of HNO3 onto coarse-mode sea salt | Prasad Kasibhatla (Duke) | Science | |
Photolysis of NITs | Prasad Kasibhatla (Duke) | 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 | |
Wet deposition parameterizations: pH dependency, Henry's law coefficients, etc. | Sarah Safieddine (MIT) GCST |
Science | |
Archive GISS met fields from RCP scenarios for community | Lee Murray (Rochester) | Science | |
Online O3-LAI coupling in GEOS-Chem | Amos Tai (CUHK) | Science | |
Clean up SOA diagnostics | GCST | Structural | |
Calculation consistency throughout code: surface area, HGF (via species database) | GCST | Structural |
--Melissa Sulprizio (talk) 17:40, 11 May 2017 (UTC)
Over the horizon (6-12 months)
Item | Author(s) | Type | Status |
---|---|---|---|
GISS-GC GCHP | Lee Murray (Rochester) | Science | |
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) |
Structural | |
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) | Science | |
Cosmogenic tracer production | Lee Murray (Rochester) | Science | |
Explore resolution-consistent dust emissions
|
David Ridley (MIT) GCST Nested Model WG |
Science | |
Update SO2 scavenging in convective updrafts for consistency | Duncan Fairlie (NASA/LARC) | Science |
--Melissa Sulprizio (talk) 17:19, 11 May 2017 (UTC)
Longer term (12-24 months)
Item | Author(s) | Type | Status |
---|---|---|---|
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 |
|
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 |
|
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)