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 |
---|---|---|
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:
|
Emily Fischer (CSU) |
|
Monthly mean NEI2011 emissions | GCST Katie Travis (Harvard) |
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Enhance default GEOS-Chem simple SOA | Sal Farina (Colorado State) Aerosol Working Group Chairs |
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Updates to isoprene chemistry, includes:
|
Jenny Fisher (U. Wollongong) Eloïse Marais (Harvard) Katie Travis (Harvard) Kelvin Bates (Caltech) Rebecca Schwantes(Caltech) |
|
Add aqueous isoprene uptake to SOA scheme | Eloise Marais (Harvard) |
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Carbon balance (fix C creation) | Sarah Safieddine (MIT) |
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Halogen chemistry updates | Tomás Sherwen (York) Johan Schmidt (Harvard) Seb Eastham (MIT) Lei Zhu (Harvard) Oxidants and Chemistry WG |
|
Sulfur oxidation by reactive halogens | Qianjie Chen (UW) |
|
Update density of BC to 1.8 and add absorption enhancement factor in input.geos | Xuan Wang (MIT) |
|
Monthly mean surface methane distributions | Lee Murray (Rochester) |
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Remove initial stratospheric 2D mixing ratio option | Seb Eastham (Harvard) |
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UCX stratospheric water boundary condition update | Chris Holmes (UC Irvine) Seb Eastham (Harvard) |
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Use monthly mean stratospheric prod/loss rates from UCX simulation for all species | GCST |
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Metal catalyzed oxidation of SO2 (as a switch) | Viral Shah (UW) Becky Alexander (UW) |
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Spatially varying OM/OC | Sajeev Philip (Dalhousie/NASA Ames) |
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Source code updates for high performance option (GCHP) | Seb Eastham (Harvard) Lizzie Lundgren (Harvard) Mike Long (Harvard) Jiawei Zhuang (Harvard) Bob Yantosca (Harvard) |
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Use global 0.25x0.25 files for MEGAN input and MODIS LAI | Jenny Fisher (U. Wollongong) Eloise Marais (U. Birmingham) Dylan Millet (UMN) |
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Update HEMCO from v2.1.001 to v2.1.005
|
Christoph Keller (NASA GMAO) |
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Global ethane emissions (C2H6_2010) | Zitely Tzompa-Sosa (CSU) |
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CEDS global anthropogenic emissions (1950-2014)
|
Lu Shen (Harvard) Melissa Sulprizio (Harvard) |
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EDGAR v4.3.1 emissions
|
Chi Li (Dalhousie) |
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Historical Canadian emissions | Chi Li (Dalhousie) |
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Inefficient combustion emissions in Africa (DICE-Africa inventory) | Eloise Marais (U. Birmingham) Christine Wiedinmyer (NCAR) |
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Trash burning emissions | Eloise Marais (U. Birmingham) Christine Wiedinmyer (NCAR) |
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Ammonia emissions from Arctic seabirds | Betty Croft (Dalhousie) |
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Updated CH4 simulation | Bram Maasakkers (Harvard) Melissa Sulprizio (Harvard) |
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Updated Tagged CO simulation | Jenny Fisher (Wollongong) |
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Updates to Hg chemistry from Horowitz et al. (2017) | Hannah Horowitz (U. Washington) Colin Thackray (Harvard) Rebecca Stern (Harvard) |
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NetCDF Output Phase 3a: Output diagnostics in NetCDF format | GCST |
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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 | |||
Script for checking N, C, etc. balance in chemistry mechanism | Barron Henderson (EPA) | Software | |
ND49 timeseries diagnostic for correcting ozone from the height of the lowest model level to 10m | Structural | Katie Travis (MIT) |
|
Defer to v11-03
Feature | Submitted by | Type | Status |
---|---|---|---|
Transport updates | |||
GEOS resolution & subgrid convection | Karen Yu (Harvard) | Science |
|
Common set of tracers in GEOS-Chem and GEOS | Transport WG GCST |
Benchmarking | |
Chemistry updates | |||
Updated chlorine chemistry | Xuan Wang (Harvard) | Science | |
Extend UCX into the mesosphere | Sebastian Eastham (MIT) | Science | |
Emissions updates | |||
OMI-based volcanic emissions 2005-2012 | Cui Ge (U. Iowa) Jun Wang (U. Iowa) |
Science |
|
MEIC emissions over China (2000-2015) | Lu Shen (Harvard) Melissa Sulprizio (Harvard) |
Science |
|
Anthropogenic PM2.5 dust source | Sajeev Philip (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 |
|
Grid-independent emissions, including:
|
Randall Martin (Dalhousie) Lee Murray (Rochester) David Ridley (MIT) Jintai Lin (PKU) |
Science | |
EPA-derived BC/OA emissions over US (1990-2012) | David Ridley (MIT) Chi Li (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 |
|
GFAS biomass burning emissions | Mat Evans (York) | Science | |
Deposition/surface updates | |||
Wet scavenging in mixed-phase clouds | Bo Zhang (NIA/NASA Langley) | Science |
|
Harmonizing Henry's Law coefficients across wet and dry deposition | GCST | Science | |
Sedimentation of stratospheric aerosols | Sebastian Eastham (Harvard) | 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 | |||
Oxidant fields from v10 for 2006-2012
|
Dylan Jones (UofT) | Science |
|
Year 2010 ocean Hg boundary conditions from ocean model | Hannah Horowitz (Harvard) | Science | |
Historical products emissions from Zhang et al. (2016), should become default | Colin Thackray (Harvard) | Science | |
AMAP/UNEP 2035 for Hg simulation | Helene Angot (MIT) | 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 | |
Structural updates | |||
Updated flux diagnostics | Chris Holmes (Florida State) GCST |
Structural/ Benchmarking |
|
Additional modifications for FlexChem, including:
|
GCST | Structural | |
Benchmark of stratospheric simulation | Dylan Jones (U. Toronto) | Benchmarking |
|
Add total column O3 to benchmarks | Chris Holmes (FSU) GCST |
Benchmarking | |
Uniformity of units | GCST | Structural |
|
ObsPack diagnostic as netCDF replacement for planeflight_mod.F | Andy Jacobson (NOAA/ESRL) | 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 | |||
FlexGrid: Use HEMCO to read met fields and enable nested simulations over any custom domains | Jiawei Zhuang (Harvard) Jintai Lin (PKU) |
Structural |
|
Update ISORROPIA from v2.0 to v2.2, in order to remove persistent noise in output | Seb Eastham (Harvard) | Science |
|
Archival of roughness length for temperature z0T | GCST | Met processing |
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 | |
Update MODIS LAI fields through 2015 | Barron Henderson (UF) | Science | |
Lightning NOx chemistry parameterization | Alicia Gressent (MIT) | Science |
Almost there (< 6 months)
Item | Author(s) | Type | Status |
---|---|---|---|
Aromatics and dicarbonyl chemistry | William Porter (MIT) Tzung-May Fu (PKU) |
Science | |
Diagnostic for species lifetime | GCST | Science | |
Document chemical mechanism in KPP file | Mat Evans (York) | Structural | |
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 | |
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 |
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) |
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 |
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 |
--Melissa Sulprizio (talk) 20:44, 12 May 2017 (UTC)