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 as of Oct 2011
This is list of planned GEOS-Chem model development items updated from the List of priorities identified at 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.
Awaiting release
| Item | Author(s) | Status |
|---|---|---|
| APM aerosol microphysics | Fangqun Yu (SUNY Albany) | Added to v9-01-02 |
| GFED3 biomass burning | Prasad Kasibhatla (Duke) | Added to v9-01-02 |
| Aerosol deposition over snow/ice | Jenny Fisher (Harvard) | Added to v9-01-02 |
| Seasonal variation of Asian NH3 emissions | Jenny Fisher (Harvard) | Added to v9-01-02 |
| Cleanup of AOD diagnostics | Sungshik Patrick Kim (Harvard) | Added to v9-01-02 |
| RETRO anthropogenic VOC emissions | Dylan Millet (U. Minnesota) | Added to v9-01-02 |
| GEIA emissions scale factor fix | Dylan Millet (U. Minnesota) | Added to v9-01-02 |
| Chemical updates for atmospheric Hg | Bess Corbitt (Harvard) Jenny Fisher (Harvard) |
Added to v9-01-02 |
| GEIA 2005 Hg emissions | Bess Corbitt (Harvard) | Delivered to GCST |
| Documentation of chemical mechanism | Jingqiu Mao (NOAA/GFDL) | Now available. Please see this wiki page. |
--Melissa Payer 15:17, 6 October 2011 (EDT)
Ready to go in
| Item | Author(s) | Status |
|---|---|---|
| Nested-grid Hg simulation | Lyatt Jaeglé (U. Washington) | Code is ready |
| Nested-grid CO2 simulation | Yuxuan Wang (Tsinghua U.) | Code delivered to GCST; awaiting implementation |
| Stratospheric P and k (monthly climatological) | Lee Murray (Harvard) | Code is ready |
| Inorganic chemistry updates | Mat Evans (Leeds) | Code delivered to GCST; awaiting implementation |
| Expanded SOA | Havala Pye (EPA/ORD) | Code delivered to GCST; awaiting implementation |
| Dust submicron size distribution for optics | David Ridley (Colo. State) | Code is ready |
| Improved sea salt emission & deposition | Lyatt Jaeglé (U. Washington) | Code delivered to GCST, awaiting implementation |
| Improved snow scavenging and washout parameterization | Qiaoqiao Wang (Harvard) | Code is ready |
| New soil NOx emission module | Rynda Hudman (UC Berkeley) | Code delivered to GCST, awaiting implementation |
| EPA/NEI2005 Hg emissions for US | Lyatt Jaeglé (U. Washington) | Code is ready |
| Improved acetone simulation | Emily Fischer (Harvard) | Code delivered to GCST, awaiting implementation |
| Complete shift of biogenic VOC emissions from GEIA to MEGAN; retire GEIA | Dylan Millet (U. Minnesota) | Delivered to GCST, will be done concurrently w/ the improved acetone simulation |
| OVOC's dry deposition | Jingqiu Mao (NOAA/GFDL) | Code is ready |
| Box model version of GEOS-Chem chemical mechanism | Jingqiu Mao (NOAA/GFDL) | Code is ready |
| Historical emission inventories of SO2, NOx, BC, and POA | Eric Leibensperger (MIT) | Code delivered to GCST, awaiting implementation |
| Methyl peroxy nitrate (MPN) chemistry | Ellie Browne (UC Berkeley) | Code delivered to GCST, awaiting implementation |
| Acid uptake on dust aerosols | T. Duncan Fairlie (NASA/LARC) | Code delivered to GCST, awaiting implementation |
| FAA/AEDT aircraft emissions inventory | Steven Barrett et al (MIT) | Code delivered to GCST, on hold |
--Melissa Payer 15:17, 6 October 2011 (EDT)
Almost there (< 6 months)
| Item | Author(s) | Status |
|---|---|---|
| Longwave & shortwave RF codes for chemistry-climate | Fangqun Yu (SUNY Albany) | |
| APM capability for nested grid | Fangqun Yu (SUNY Albany) | |
| Streets future Hg emissions | Bess Corbitt (Harvard) | Code is ready, pending paper acceptance |
| Hg(II) gas-aerosol partitioning | Helen Amos (Harvard) | |
| Update to EDGAR 4 anthropogenic emissions | Qiang Zhang (Tsinghua) | |
| Satellite-based NOx emission trends | Lok Lamsal (NASA GSFC) | Emission trends database is ready; Needs to be implemented into GEOS-Chem |
| Interannual lightning | Lee Murray (Harvard) | |
| Implement GISS advection scheme for GISS-driven applications | GEOS-Chem Support Team | |
| Tropospheric bromine chemistry | Justin Parrella (Harvard) | |
| Updated dicarbonyl simulation | May Fu (Peking U.) | |
| Satellite diagnostic for XCO2 | Liang Feng (U. Edinburgh) | |
| Cloudwater pH for sulfate formation | Becky Alexander (U. Washington) | Code is ready, pending paper acceptance |
| Tagged sulfate and nitrate simulation | Becky Alexander (U. Washington) |
--Melissa Payer 15:17, 6 October 2011 (EDT)
Over the horizon (6-12 months)
| Item | Author(s) | Status |
|---|---|---|
| Update HCN simulation | Qian Li (U. Edinburgh) Dylan Jones (U. Toronto) |
|
| Working with GEOS-5.7.2 | GEOS-Chem Support Team | Development is 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 planeflight diagnostic | Mat Evans (Leeds) | |
| Chemistry diagnostics | Mat Evans (Leeds) | |
| Improved operator splitting | Mauricio Santillana (Harvard) | Development is ongoing |
| 3-D VOC source for tagged CO simulations | Dylan Jones (U. Toronto) | |
| 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) | |
| Improved dust simulation in nested-grid model | Rokjin Park (Seoul Nat'l Univ.) | |
| Isoprene chemistry | Mat Evans (Leeds) Jingqiu Mao (NOAA/GFDL) |
Paper is in progress |
| Unified emissions pre-processor | Qiang Zhang (Tsinghua) | |
| Update Asian emissions | Qiang Zhang (Tsinghua) | |
| CESM/CAM5 interface for chemistry-climate | Rokjin Park (Seoul Nat'l Univ.) Joshua Fu (U. Tennessee) |
--Melissa Payer 15:17, 6 October 2011 (EDT)
Longer term (> 12 months)
| Item | Author(s) | Status |
|---|---|---|
| Grid-independent GEOS-Chem | GEOS-Chem Support Team | Development is ongoing |
| Improved atmospheric-ocean-land coupling of Hg simulation | Hg and POPs Working Group | |
| 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) | |
| Benchmark for aerosol deposition | Colette Heald (Colo. State) | TBD |
| 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) | |
| Link column version of GEOS-Chem with GEOS-GCM for chemistry-climate | GEOS-Chem Support Team | |
| CO2 inhibition effect for isoprene emission | Loretta Mickley (Harvard) | |
| Replace CASA CO2 biosphere climatology with year-specific fluxes | Ray Nassar (Environment Canada) Dylan Jones (U. Toronto) |
TBD |
--Melissa Payer 15:17, 6 October 2011 (EDT)
Items no longer being worked on
| Item | Author(s) | Status |
|---|---|---|
| Fix of global OH diagnostic | Mat Evans (Leeds) Jingqiu Mao (NOAA/GFDL) |
This is no longer an issue after the CSPEC restart bug fix in v9-01-02 (awaiting release). |
| Updated diurnal variation of US NEI emissions | Rynda Hudman (UC Berkeley) |
--Melissa Payer 15:17, 6 October 2011 (EDT)
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 emission | 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) | |
| Unified radiative forcing module for GEOS-Chem | Aerosols Working Group | |
| 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) | |
| 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)