GEOS-Chem model development priorities
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On this page we list the priorities for ongoing GEOS-Chem model development. We also list the items that were once identified as priorities but have since been added to the standard mainline GEOS-Chem code.
List of priorities identified at IGC5
This is a list of planned GEOS-Chem model development items, based on discussions and Working Group reports from the and 5th International GEOS-Chem Meeting (aka IGC5). The key model developer or model contact is identified for each item.
We count on user input to augment and prioritize this list, please contact your Working Group Chair or model scientist Daniel Jacob.
For immediate implementation (awaiting release)
| Item | Author(s) | Status |
|---|---|---|
| APM aerosol microphysics | Fangqun Yu (SUNY Albany) | Added to v9-01-02; awaiting release |
| GFED3 biomass burning | Prasad Kasibhatla (Duke) | Added to v9-01-02; awaiting release |
| FAA/AEDT aircraft emissions inventory | Steven Barrett et al (MIT) | |
| Aerosol deposition over snow/ice | Jenny Fisher (Harvard) | Added to v9-01-02; awaiting release |
| Seasonal variation of Asian NH3 emissions | Jenny Fisher (Harvard) | Added to v9-01-02; awaiting release |
| Cleanup of AOD diagnostics | Sungshik Patrick Kim (Harvard) | Added to v9-01-02; awaiting release |
| RETRO anthropogenic VOC emissions | Dylan Millet (U. Minnesota) | Added to v9-01-02; awaiting release |
--Bob Y. 15:56, 23 August 2011 (EDT)
Ready to go in
| Item | Author(s) | Status |
|---|---|---|
| Nested-grid Hg simulation | Lyatt Jaeglé (U. Washington) | |
| Nested-grid CO2 simulation | Yuxuan Wang (Tsinghua U.) | |
| Stratospheric P and k (monthly climatological) | Lee Murray (Harvard) | |
| Inorganic chemistry updates | Mat Evans (Leeds) | |
| GEIA 2005 Hg emissions | Bess Corbitt (Harvard) | Delivered to GCST |
| Expanded SOA | Havala Pye (EPA/ORD) | Delivered to GCST, undergoing final testing |
| Dust submicron size distribution for optics | David Ridley (Colo. State) | |
| GEIA emissions scale factor fix | Dylan Millet (U. Minnesota) | Added to v9-01-02; awaiting release |
| Longwave & shortwave RF codes for chemistry-climate | Fangqun Yu (SUNY Albany) | |
| Improved sea salt emission & deposition | Lyatt Jaeglé (U. Washington) | Code delivered to GCST, awaiting implementation |
| Improved snow scavenging and washout parameterization | Qiaoqiao Wang (Harvard) |
--Bob Y. 11:04, 30 August 2011 (EDT)
Almost there (< 6 months)
| Item | Author(s) | Status |
|---|---|---|
| New soil NOx emission module | Rynda Hudman (UC Berkeley) | Code delivered to GCST, awaiting implementation |
| APM capability for nested grid | Fangqun Yu (SUNY Albany) | |
| TOMAS capability for nested grid | Jeff Pierce (Dalhousie) | |
| Fix of global OH diagnostic | Mat Evans (Leeds) Jingqiu Mao (NOAA/GFDL) |
|
| Chemical updates for atmospheric Hg | Bess Corbitt (Harvard) Jenny Fisher (Harvard) |
|
| Streets future Hg emissions | Bess Corbitt (Harvard) | |
| EPA/NEI2005 Hg emissions for US | Lyatt Jaeglé (U. Washington) | |
| Hg(II) gas-aerosol partitioning | Helen Amos (Harvard) | |
| Update to EDGAR 4 anthropogenic emissions | Qiang Zhang (Tsinghua) | |
| Updated diurnal variation of US NEI emissions | Rynda Hudman (UC Berkeley) | |
| Satellite-based NOx emission trends | Lok Lamsal (NASA GSFC) | |
| PARANOX ship plume emissions | Geert Vinken (Eindhoven) | |
| Interannual lightning | Lee Murray (Harvard) | |
| Primary marine OA emissions | Kateryna Lapina (CSU) | |
| Complete shift of biogenic VOC emissions from GEIA to MEGAN; retire GEIA | Dylan Millet (U. Minnesota) | Slated for v9-01-03 |
| Update HCN simulation | Qian Li (U. Edinburgh) Dylan Jones (U. Toronto) |
|
| Implement GISS advection scheme for GISS-driven applications | GEOS-Chem Support Team |
--Bob Y. 11:10, 6 June 2011 (EDT)
Over the horizion (6-12 months)
| Item | Author(s) | Status |
|---|---|---|
| Working with GEOS-5.7.2 | GEOS-Chem Support Team | Ongoing |
| Nested-grid model at 0.25° x 0.3125° resolution | Yuxuan Wang (Tsinghua) | |
| High-resolution emissions for above nested-grid model | Yuxuan Wang (Tsinghua) | |
| Improved acetone simulation | Emily Fischer (Harvard) | Slated for inclusion in v9-01-03 |
| Tropospheric bromine chemistry | Justin Parrella (Harvard) | |
| OVOC's dry deposition | Jingqiu Mao (NOAA/GFDL) | |
| Improved planeflight diagnostic | Mat Evans (Leeds) | |
| Chemistry diagnostics | Mat Evans (Leeds) | |
| Documentation of chemical mechanism | Jingqiu Mao (NOAA/GFDL) | |
| Box model version of GEOS-Chem chemical mechanism | Jingqiu Mao (NOAA/GFDL) | |
| Improved operator splitting | Mauricio Santillana (Harvard) | |
| Updated dicarbonyl simulation | May Fu (Peking U.) | |
| 3-D VOC source for tagged CO simulations | Dylan Jones (U. Toronto) | |
| Replace CASA CO2 biosphere climatology with year-specific fluxes | Ray Nassar (Environment Canada) Dylan Jones (U. Toronto) |
|
| Satellite diagnostic for XCO2 | Liang Feng (U. Edinburgh) | |
| Move to 2° x 2.5° versions of GISS GCM ModelE and Model3 | Loretta Mickley (Harvard) | For more information, please see the GISS Model E Memo by (Lee Murray and Loretta Mickley). |
| Implement IPCC AR5 scenarios | Loretta Mickley (Harvard) | |
| CO2 inhibition effect for isoprene emisison | Loretta Mickley (Harvard) |
--Bob Y. 11:25, 30 August 2011 (EDT)
Longer term (> 12 months)
| Item | Author(s) | Status |
|---|---|---|
| Grid-independent GEOS-Chem | GEOS-Chem Support Team | Development is ongoing |
| Improved dust simulation in nested-grid model | Rokjin Park (Seoul Nat'l Univ.) | |
| Isoprene chemistry | Mat Evans (Leeds) Jingqiu Mao (NOAA/GFDL) |
|
| Improved atmospheric-ocean-land coupling of Hg simulation | Hg and POPs Working Group | |
| Unified emissions pre-processor | Qiang Zhang (Tsinghua) | |
| Update Asian emissions | Qiang Zhang (Tsinghua) | |
| Primary biological aerosol particles (PBAP's) | Colette Heald (Colo. State) | Only to be implemented if users identified |
| Unified radiative forcing module for GEOS-Chem | Aerosols Working Group | Under discussion/investigation |
| Effective meteorolgical fields for dust and sea-salt emissions | GEOS-Chem Support Team | |
| Dust simulation expansion; tagged simulation, oxalate, Fe, P | Matthew Johnson (NCSU) | |
| Cloudwater pH for sulfate formation | Becky Alexander (U. Washington) | |
| Benchmark for aerosol deposition | Colette Heald (Colo. State) | TBD |
| Tagged sulfate and nitrate simulation | Becky Alexander (U. Washington) | |
| Read emission data at native resolution and regrid on the fly | GEOS-Chem Support Team | |
| Improve ocean CO2 flux and resolution of anthropogenic sources | Ray Nassar (Environment Canada) | |
| CESM/CAM5 interface for chemistry-climate | Rokjin Park (Seoul Nat'l Univ.) Joshua Fu (U. Tennessee) |
|
| Link column version of GEOS-Chem with GEOS-GCM for chemistry-climate | GEOS-Chem Support Team |
--Bob Y. 11:33, 6 June 2011 (EDT)
Items that are now included in GEOS-Chem
Here we list new features that have since been brought into the standard mainline GEOS-Chem code. Each of these was identified as a priority at the [5th International GEOS-Chem Meeting in 2011 (aka IGC5).
| Item | Author(s) | Completion Date |
|---|---|---|
| FlexAOD postprocessor | Gabriele Curci (U. L'Aquila) | 26 May 2011 |
--Bob Y. 12:31, 13 June 2011 (EDT)