GEOS-Chem model development priorities
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GEOS-Chem Main Page | GCHP Main Page
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
12.9.0
This version is now under development. Please see the GEOS-Chem 12 wiki page for more details.
13.0.0
| Feature | Submitted by | Type | Notes and References |
|---|---|---|---|
| Updates that will affect full-chemistry simulations | |||
| Retire carbon-based units for VOCs | GCST | Science | |
| Updates that will NOT affect full-chemistry simulations | |||
| CEDS_GBD-MAPS emission inventory (1970 - 2017) | Erin McDuffie (Dalhousie) | Science | |
| ODIAC fossil fuel emissions for CO2 simulations | Jenny Fisher (UOW) Yi Cao (UOW) |
Science |
|
| Updated Streets Hg emissions | Colin Thackray (Harvard) | Science |
|
| Updated EDGAR 4.3 Hg emissions | Amanda Giang (UBC) | Science | |
| Global Inventory of Methane Emissions from Fuel Exploitation | Tia Scarpelli (Harvard) | Science | |
| Retire tropchem mechanism; implement new tropchem simulation using Standard mechanism below the tropopause and archived P/L rates above | Melissa Sulprizio (GCST) | Science | |
| Fix bug in RRTMG with stratospheric aerosol | Sebastian Eastham (MIT) | Bug fix | |
| Add global mean OH and CH4 lifetime diagnostics | GCST | Structural | |
| Retire the GNU Make build system in both GEOS-Chem Classic and GCHP and replace with CMake | Liam Bindle (WashU) GCST |
Structural | |
| Retire the GEOS-Chem Unit Tester repository and move GEOS-Chem run directory creation to the GEOS-Chem source code repository | Melissa Sulprizio (GCST) | Structural | |
| Updates to HEMCO for compatibility with CESM | Haipeng Lin (Harvard) | Structural |
|
| Reduction of memory for HISTORY diagnostics with a species dimension | Bob Yantosca (GCST) | Structural | |
| Removal of HEMCO code from within the non-local PBL mixing modules | Bob Yantosca (GCST) | Structural
| |
| Features only affecting GCHP: | |||
| Retire the existing GCHP repository and replace with a new wrapper repository that uses ESMF as an external library and integrates GEOS-Chem and NASA/GMAO GEOS-ESM git repositories as git submodules | Lizzie Lundgren (GCST) | Structural | |
| Separate HEMCO from GEOS-Chem to use as an ESMF gridded component in GCHP | Lizzie Lundgren (GCST) | Structural | |
| Enable a stretched grid capability in GCHP to run global simulations at regional high resolution | Liam Bindle (WashU) | Structural | |
| Update MAPL (v2.2.7) and GMAO library dependencies | Lizzie Lundgren (GCST) | Structural | |
| Enable GCHP to be compiled with RRTMG | Sebastian Eastham (MIT) | 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 | Notes |
|---|---|---|---|
| Chemistry updates | |||
| Improved wet scavenging (Luo et al., 2020) | Gan Luo (Albany) Fanqun Yu (Albany) |
Science | |
| Implement H2 chemistry in UCX | Chris Holmes (FSU) | Science | |
| Stratospheric HCN chemistry | Armin Kleinbohl (JPL) Debra Weisenstein (Harvard, retired) |
Science |
|
| HMS chemistry | Jonathan Moch (Harvard) | Science | |
| Emissions and surface fluxes updates | |||
| Blowing snow emissions of sea salt and bromine | Lyatt Jaegle (UW) | Science |
|
| Offline CLM Harmonization | Anthony Wong (BU) Jeff Geddes (BU) |
Science | |
| Aerosol updates | |||
| Arctic marine SOA | Betty Croft (Dalhousie) | Science |
|
--Melissa Sulprizio (talk) 16:38, 14 May 2019 (UTC)
Almost there (< 6 months)
| Item | Author(s) | Type | Notes |
|---|---|---|---|
| Provide climatologies for lightning NOx, volcano, and open fire emissions | GCST | Science | |
| Aromatic VOC chemistry | Kelvin Bates (Harvard) Ke Li (Harvard) |
Science | |
| C2H4 and C2H2 chemistry | Kelvin Bates (Harvard) Ke Li (Harvard) |
Science | |
| Diagnostic to archive XCO2, XCO, and XCH4 | Dylan Jones (Toronto) | Science | |
| Provide archived TCR-2 GEOS-Chem OH fields for carbon simulations | Kazu Miyazaki (JPL) | Science | |
| Evaluate the impact on the tropsophere of using the family approach for transport in the stratosphere | Christoph Keller (NASA/GMAO) | Science |
|
| Extend UCX into the mesosphere | Sebastian Eastham (MIT) Eric Fleming (NASA GMAO) |
Science | |
| Examine differences in the lightning NOx schemes in GEOS-Chem and GMI | Christoph Keller (NASA/GMAO) Lee Murray (Rochester) |
Science | |
| Heterogeneous sulfate production | Lin Zhang (PKU) Becky Alexander (UW) Yuxuan Wang (U. Houston) |
Science | |
| BrC aging | Xuan Wang (Harvard) Melanie Hammer(Dalhousie) |
Science | |
| Update of US emissions to NEI16 | Barron Henderson (EPA) | Science | |
| Updated surface ocean dissolved Hg0 from MITgcm | Yanxu Zhang (Nanjing) | Science | |
| One-Way Coupling w/ GISS ModelE3 | Lee Murray (Rochester) Eric Leibensperger (SUNY Plattsburgh) |
Structural | |
| Shared Socioeconomic Pathways Emission Inventories | Hong Liao (NUIST) | Science |
--Melissa Sulprizio (talk) 16:38, 14 May 2019 (UTC)
Over the horizon (6-12 months)
| Item | Author(s) | Type | Notes |
|---|---|---|---|
| Update OCS simulation in the standard code | Kevin Bowman (JPL) | Science | |
| Examine what are the differences in the PSC implementation in GEOS-Chem and GMI and assess the implications of these differences for startospheric ozone | Susan Strahan (Goddard) Sebastian Eastham (MIT) |
Science | |
| Rediagnosis of RAS convection in GEOS-Chem | Tailong He (Toronto) Dylan Jones (Toronto) Andrea Molod (NASA/GMAO) |
Science | |
| New schedule for tracer transport benchmarks (FP change, scavenging change, or major release) | Andrea Molod (NASA/GMAO) | Science | |
| Methylethylketone chemistry | Jared Brewer (CSU) | Science | |
| Add sulfate dependence to SOA yield from isoprene in simple SOA | Eloïse Marais (Leicester) | Science | |
| Trace metal simulation | Junwei Xu (Dalhousie) | Science | |
| Hg gas-phase photo-reduction | Colin Thackray (Harvard) | Science | |
| Ecophysiology module in GEOS-Chem for biosphere-atmosphere exchange | Amos Tai (CUHK) | Science | |
| Canopy Physics Model | Sam Silva (MIT) | Structural | |
| Landcover/Fire Emissions Offline LPJlmfire | Loretta Mickley (Harvard) | Science |
--Melissa Sulprizio (talk) 16:38, 14 May 2019 (UTC)
Longer term (12-24 months)
| Item | Author(s) | Type | Notes |
|---|---|---|---|
| Implement isotope simulation for CO and CH4 in GCHP | Lee Murray (Rochester) | Science | |
| Migrate LETFK DA scheme to GCHP | Kazu Miyazaki (JPL) | Science | |
| Super fast chemistry scheme | Benjamin Brown-Steiner (AER) Makoto Kelp (Harvard) |
Science | |
| Add non-volatile cations to ISORROPIA | Becky Alexander (UW) | Science | |
| Update Europe emissions to EMEP 2016 | Eloise Marais (Leicester) | Science | |
| MEGAN3 | Sam Silva (MIT) Jen Kaiser (GIT) Yuxuan Wang (UH) |
Science | |
| DMS oxidation scheme updating | Becky Alexander (UW) Qianjie Chen (UW) |
Science | |
| Streamlining of specialty simulations through HEMCO and KPP | GCST Chris Holmes (FSU) Colin Thackray (Harvard) for Hg Peter Ivatt (York) for PAH Beata Bukosa (Wollongong) for joint CO-CO2-CH4 |
Science | |
| Hg in WRF-GC | Yanxu Zhang (Nanjing) | Science | |
| Hg with blowing snow | Yanxu Xhang (Nanjing) | Science | |
| Updated treatment of Hg in ocean | Chris Holmes (FSU) | Science | |
| GTMM updates | Ben Geyman (Harvard) | Science | |
| Complex / multicomplex variables | Shannon Capps (Drexel) | Structural | |
| Archived CMIP6 Met Products for GEOS-Chem Input | Lee Murray (Rochester) | Science |
--Melissa Sulprizio (talk) 16:38, 14 May 2019 (UTC)
