GEOS-Chem model development priorities
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Revision as of 20:04, 16 November 2021 by Bmy (Talk | contribs) (→Feature integration in the queue)
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. For history of past releases see the GEOS-Chem Versions wiki page.
Contents
Release schedule
Please see the GEOS-Chem Release Proposal outlining the procedure and schedule for releasing GEOS-Chem versions.
Merged and awaiting release
See the links below for items merged and awaiting release.
| Patch version in development | Minor version in development |
|---|---|
| none yet | GEOS-Chem 13.4.0 |
Feature integration in progress
Features listed in this table are actively being integrated into GEOS-Chem by the GEOS-Chem Support Team. In addition, we continuously implement structural updates in the model to maintain and develop coupling with other models including GEOS, CESM, and the model adjoint.
| Feature | Contributor(s) | Model scope | Ease of implementation | Notes |
|---|---|---|---|---|
| Fix bug in Henry law CALC_HEFF routine in hetchem computations | Viral Shah (Harvard | Chemistry | Easy | |
| Use degassing-only volcano emissions for benchmark simulations | Christoph Keller (GMAO) Daniel Jacob (Harvard) |
Emissions & Benchmarking |
Easy |
|
| Use updated PM2.5 definition; Add PM10 diagnostic | Aerosols WG | Diagnostics & Benchmarking |
Easy |
|
| Updates to enable automated run directory creation | Liam Bindle (GCST) Melissa Sulprizio (GCST) |
Run directory | Medium | |
| Upgrade Fast-JX to Cloud-J | Lizzie Lundgren (GCST) | Structural | Difficult |
|
| Migrating sulfate chemistry into KPP | Mike Long (GCST) | Chemistry & Structural |
Difficult |
|
| Updated Hg chemistry in KPP | Viral Shah (Harvard) Colin Thackray (Harvard) Mike Long (Harvard) |
Chemistry | Medium | |
| Add capability to use mass fluxes in advection | Sebastian Eastham (MIT) Liam Bindle (GCST) |
Transport | Easy |
|
| Provide climatologies for open fire emissions | Melissa Sulprizio (GCST) | Emissions | Easy | |
| Climatologies for lightning NOx, biomass burning, and volcanoes | Lee Murray (Rochester) Melissa Sulprizio (GCST) |
Emissions | Easy | |
| Add option for driving GEOS-Chem with native GEOS meteorological files | Liam Bindle (GCST) | Structural | Easy | |
| Change State_Chm%Species from 4D to vector of 3D arrays and point them to internal state in GCHP | Lizzie Lundgren (GCST) | Structural | Medium |
Feature integration in the queue
Features listed in this table have been delivered to the GEOS-Chem Support Team and are prioritized to be integrated into GEOS-Chem in the near future.
| Feature | Contributor(s) | Model scope | Ease of implementation | Notes |
|---|---|---|---|---|
| Update surface resistance for ozone deposition to ice/snow | Ryan Pound (York) Shuting Zhai (UW) |
Drydep | Easy | |
| Updated Rn-222 emissions | Bo Zhang | Emissions | Easy |
|
| Joint CO2-CO-CH4-OCS simulation | Beata Bukosa (NIWA) Kevin Bowman (JPL) |
Specialty simulation | Medium |
|
| Adaptive chemical solver (as option) | Mike Long (Harvard) Haipeng Lin (Harvard) |
Chemistry | Difficult |
|
Feature integration not yet prioritized
Features listed in this table have been delivered to the GEOS-Chem Support Team but are not yet prioritized for integrating into the model.
| Feature | Contributor(s) | Model scope | Ease of implementation | Notes |
|---|---|---|---|---|
| Stratospheric HCN chemistry | Armin Kleinbohl (JPL) Debra Weisenstein (Harvard, retired) |
Chemistry | Medium |
|
| MEGAN3 | Sam Silva (MIT) | Emissions | Medium |
|
| GC-YIBs biosphere-atmospheric chemistry coupled model | Xu Yue (NUIST) | Science | Easy | |
| Ecophysiology module in GEOS-Chem for biosphere-atmosphere exchange | Joey Lam(CUHK) Amos Tai (CUHK) |
Science | Easy |
|
| Extend UCX into the mesosphere | Sebastian Eastham (MIT) Eric Fleming (NASA GMAO) |
Chemistry | Easy | |
| Landcover/Fire Emissions Offline LPJlmfire | Loretta Mickley (Harvard) Yang Li (Harvard) |
Emissions | Easy |
|
| Canopy Physics Model | Sam Silva (MIT) | Science | Medium |
|
| Anthropogenic Methane Emission Inventory for Canada | Tia Scarpelli (U. Edinburgh) | Emissions | Easy |
|
| Updated Global Inventory of Methane Emissions from Oil/Gas/Coal (GFEI v2) | Tia Scarpelli (U. Edinburgh) | Emissions | Easy |
|
Almost there (< 6 months)
Features listed in this table are in development and will likely be delivered to the GEOS-Chem Support Team within the next 6 months.
| Feature | Contributor(s) | Model scope | Notes
|
|---|---|---|---|
| Implement H2 chemistry in UCX | Chris Holmes (FSU) | Chemistry |
|
| New soil NOx parameterization | Yi Wang (U. Iowa) Jun Wang (U. Iowa) |
Emissions | |
| Updated offline biogenic emissions | Hongjian Weng (PKU) | Emissions |
|
| Updated offline sea salt emissions | Hongjian Weng (PKU) | Emissions |
|
| Updated offline soil NOx emissions | Hongjian Weng (PKU) | Emissions |
|
| Provide recommended rather than hard-coded scaling factors for online emissions | GCST | Emissions |
|
| Diagnostic to archive XCO2, XCO, and XCH4 | Dylan Jones (Toronto) | Diagnostic | |
| Provide archived TCR-2 GEOS-Chem OH fields for carbon simulations | Kazu Miyazaki (JPL) | Input data | |
| BrC aging | Xuan Wang (Harvard) Melanie Hammer(Dalhousie) |
Chemistry | |
| Shared Socioeconomic Pathways Emission Inventories | Hong Liao (NUIST) | Emissions | |
| Rediagnosis of RAS convection in GEOS-Chem | Tailong He (Toronto) Dylan Jones (Toronto) Andrea Molod (NASA/GMAO) |
Convection |
|
| Change GCHP advection inputs to use total pressure and mixing ratio rather than dry | Sebastian Eastham (MIT) Liam Bindle (GCST) |
Transport |
|
| HTAPv3 emissions (0.1 deg, 2002-2018) | Emissions & Deposition WG | Emissions | |
| Migrating simple SOA formation from carbon_mod.F90 into the KPP "full-chemistry" mechanism | GCST | Chemistry | |
| Updated parameterization of aerosol size distribution for bulk aerosol simulations | Haihui Zhu (WashU) Shixian Zhai (Harvard) |
Aerosols |
Over the horizon (6-12 months)
Features listed in this table are in development and will likely be delivered to the GEOS-Chem Support Team in the 6-12 months timeframe.
| Feature | Contributor(s) | Model scope | Notes |
|---|---|---|---|
| Methylethylketone chemistry | Jared Brewer (CSU) | Chemistry | |
| Add sulfate dependence to SOA yield from isoprene in simple SOA | Eloise Marais (Leicester) | Chemistry | |
| GTMM updates | Ben Geyman (Harvard) | Hg simulation |
|
| Integrating GMAO's tracer gridded component in GCHP | Christoph Keller (NASA GMAO) | Transport Tracer simulation | |
| Streamlining of specialty simulations through HEMCO and KPP | GCST | Chemistry, Specialty simulations |
Longer term (12-24 months)
Features listed in this table are in development and will likely be delivered to the GEOS-Chem Support Team in the 12-24 months timeframe.
| Feature | Contributor(s) | Model scope | Notes |
|---|---|---|---|
| Implement isotope simulation for CO and CH4 in GCHP | Lee Murray (Rochester) | Specialty simulation | |
| Migrate LETFK DA scheme to GCHP | Kazu Miyazaki (JPL) | Structural | |
| Super fast chemistry scheme | Benjamin Brown-Steiner (AER) Makoto Kelp (Harvard) |
Chemistry |
|
| Add non-volatile cations to ISORROPIA | Becky Alexander (UW) | Aerosols | |
| DMS oxidation scheme updating | Becky Alexander (UW) Qianjie Chen (UW) |
Chemistry |
|
| Heterogeneous sulfate production | Lin Zhang (PKU) Becky Alexander (UW) Yuxuan Wang (U. Houston) |
Chemistry |
|
| Hg in WRF-GC | Yanxu Zhang (Nanjing) | Hg simulation | |
| Hg with blowing snow | Yanxu Xhang (Nanjing) | Emissions, Hg simulation | |
| Hg isotopes | Xiaotian Xu, Yanxu Xhang (Nanjing) | Hg simulation | |
| Hg in CESM CAM-CHEM | Peng Zhang, Yanxu Xhang (Nanjing) | Hg simulation | |
| Complex / multicomplex variables | Shannon Capps (Drexel) | Structural |
