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 (IGC5) in May 2011 and has been continuously updated since 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 March 2013
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. Other items are in different stages of readiness and will be included in future versions of the model.
Awaiting release
Item | Author(s) | Status |
---|---|---|
Correction for GEOS-5 PBL heights | Sajeev Philip (Dalhousie) | Approved 16 Oct 2012 (v9-02a); awaiting release |
New soil NOx emission module | Rynda Hudman (UC Berkeley) Neil Moore (Dalhousie) Bram Maasakkers (Eindhoven) |
Approved 29 Oct 2012 (v9-02b); awaiting release |
EPA/NEI2005 Hg emissions for US | Lyatt Jaeglé (U. Washington) | Approved 29 Nov 2012 (v9-02c); awaiting release |
Streets future Hg emissions | Bess Corbitt (Harvard) | Approved 29 Nov 2012 (v9-02c); awaiting release |
Nested-grid Hg simulation | Lyatt Jaeglé (U. Washington) | Approved 29 Nov 2012 (v9-02c); awaiting release |
Updated Hg(0) oxidation kinetics | Bess Corbitt (Harvard) Justin Parrella (Harvard) |
Approved 29 Nov 2012 (v9-02c); awaiting release |
Capability to use GEOS-Chem Br/BrO fields in Hg simulation | Bess Corbitt (Harvard) Justin Parrella (Harvard) |
Approved 29 Nov 2012 (v9-02c); awaiting release |
POPs simulation: Polycyclic aromatic hydrocarbons | Carey Friedman (MIT) | Approved 29 Nov 2012 (v9-02c); awaiting release |
Inorganic chemistry updates | Mat Evans (York) | Approved 07 Feb 2013 (v9-02f); awaiting release |
Methyl peroxy nitrate (MPN) chemistry | Ellie Browne (UC Berkeley) | Approved 07 Feb 2013 (v9-02f); awaiting release |
Fix RO2+HO2 rate constant | Fabien Paulot (Harvard) | To be included in v9-02 |
Improvements to isoprene chemistry, standardization of Paulot Scheme | Fabien Paulot (Harvard) Eloise Marais (Harvard) Jingqiu Mao (NASA/GFDL) Mat Evans (York) |
To be included in v9-02 |
Improved HO2 uptake by aerosol | Jingqiu Mao (NASA/GFDL) | To be included in v9-02 |
Removal of NOx-Ox partitioning | GEOS-Chem Support Team | To be included in v9-02 |
Inhibition of N2O5 uptake by nitrate aerosol | Lin Zhang (Beijing University) | To be included in v9-02 |
Updated Canadian NH3 inventory | Wai-Ho Lo (Dalhousie) | To be included in v9-02 |
RCP emission scenarios | Chris Holmes (UC Irvine) | To be included in v9-02 |
EDGAR v4.2 emissions for CH4 simulation | Kevin Wecht (Harvard) | To be included in v9-02 |
Update anthropogenic scale factors through 2010 | Aaron van Donkelaar (Dalhousie) | To be included in v9-02 |
Update to EDGAR 4 anthropogenic emissions | Qiang Zhang (Tsinghua) Sajeev Philip (Dalhousie) |
To be included in v9-02 |
Interannual lightning | Lee Murray (Harvard) | To be included in v9-02 |
AEIC aircraft emissions inventory | Steven Barret (MIT) | To be included in v9-02 |
Expanded SOA | Havala Pye (EPA/ORD) | To be included in v9-02 |
Acid uptake on dust aerosols | T. Duncan Fairlie (NASA/LARC) | To be included in v9-02 |
Cloudwater pH for sulfate formation | Becky Alexander (U. Washington) | To be included in v9-02 |
Update jv_spec.dat with better representation of OC growth with RH and correction to sulfate optics | David Ridley (MIT) Randall Martin (Dalhousie) |
To be included in v9-02 |
Global simulations with GEOS-5 "FP" data product from GMAO | GEOS-Chem Support Team | To be included in v9-02
|
Nested-grid model at 0.25° x 0.3125° resolution | Yuxuan Wang (Tsinghua) | To be included in v9-02 |
High-resolution emissions for above nested-grid model | Yuxuan Wang (Tsinghua) | To be included in v9-02 |
Improve temporal resolution of anthropogenic CO2 sources | Ray Nassar (Environment Canada) | To be included in v9-02 |
Replace CASA CO2 biosphere climatology with year-specific fluxes | Ray Nassar (Environment Canada) Dylan Jones (U. Toronto) |
To be included in v9-02
Ray Nassar wrote:
|
Online PBL height calculation | Sajeev Philip (Dalhousie) Erica McGrath-Spangler(NASA GSFC) |
To be included in v9-02 |
--Melissa Payer 11:35, 21 February 2013 (EST)
Ready to go in
Item | Author(s) | Status |
---|---|---|
Tagged sulfate and nitrate simulation | Becky Alexander (U. Washington) | Deferred to v9-03 |
Update Asian emissions | Qiang Zhang (Tsinghua) | Qiang Zhang wrote:
|
--Melissa Payer 16:17, 20 February 2013 (EST)
Almost there (< 6 months)
Item | Author(s) | Status |
---|---|---|
FAA/AEDT aircraft emissions inventory | Steven Barrett et al (MIT) | S. Barrett et al are developing a new aircraft emissions inventory (AEIC), slated for GEOS-Chem v9-02 |
Longwave & shortwave RF codes for chemistry-climate | Fangqun Yu (SUNY Albany) | Fangqun Yu wrote:
|
APM capability for nested grid | Fangqun Yu (SUNY Albany) | Currently evaluating APM simulation with v9-01-03 |
Primary marine OA emissions | Kateryna Lapina (CSU) | |
Implement GISS advection scheme for GISS-driven applications | GEOS-Chem Support Team | |
Updated dicarbonyl simulation | May Fu (Peking U.) | |
Satellite diagnostic for XCO2 | Liang Feng (U. Edinburgh) | |
RO2+NO3 chemistry updates | Mat Evans (York) | |
Inhibition of N2O5 hydrolysis by aerosol nitrate | Lin Zhang (Harvard) | |
Improved ROOH formation and chemistry | Fabien Paulot (Harvard) Mat Evans (York) |
|
Unified emissions pre-processor | Qiang Zhang (Tsinghua) | Qiang Zhang wrote:
|
Improved operator splitting | Mauricio Santillana (Harvard) |
|
Improved dust simulation in nested-grid model | Rokjin Park (Seoul Nat'l Univ.) | Rokjin Park wrote:
|
CESM/CAM5 interface for chemistry-climate | Rokjin Park (Seoul Nat'l Univ.) Joshua Fu (U. Tennessee) |
Rokjin Park wrote:
|
CO2 inhibition effect for isoprene emission | Loretta Mickley (Harvard) | Amos Tai has implemented the CO2 inhibition effect and is currently testing. A manuscript is in preparation. |
--Bob Y. 10:32, 5 October 2012 (EDT)
Over the horizon (6-12 months)
Item | Author(s) | Status |
---|---|---|
Update HCN simulation | Qian Li (U. Edinburgh) Dylan Jones (U. Toronto) |
|
Online RT model in GEOS-Chem (integration of shortwave and longwave RRTMG) | Colette Heald, Steven Barrett and David Ridley (MIT) | Preliminary integration complete Oct 2012, testing, optimizing with planned delivery Spring 2013 |
Improved planeflight diagnostic | Mat Evans (York) | |
Chemistry diagnostics | Mat Evans (York) | |
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) | |
Improve ocean CO2 flux | Ray Nassar (Environment Canada) Kevin Bowman (JPL) |
|
Standardize the two-film parameterization of air-sea exchange | Hg and POPs Working Group | |
Model engineering - improving KPP diagnostics | Mat Evans (York) Barron Henderson (UNC) Mike Long (Harvard) |
--Melissa Payer 12:23, 19 September 2012 (EDT)
Longer term (> 12 months)
Item | Author(s) | Status |
---|---|---|
Grid-independent GEOS-Chem | GEOS-Chem Support Team |
|
Read emission data at native resolution and regrid on the fly | GEOS-Chem Support Team | This has more or less been achieved with the addition of the these packages:
Also note: the new Grid-Independent Emissions Component will also perform this functionality by taking advantage of the regridding features of the Earth System Model Framework. This is an ongoing development project. |
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 |
Effective meteorolgical fields for dust and sea-salt emissions | GEOS-Chem Support Team | |
Dust simulation expansion; tagged simulation, oxalate, Fe, P | Matthew Johnson (NCSU) | Matthew Johnson wrote:
|
Benchmark for aerosol deposition | Colette Heald (Colo. State) | TBD |
--Melissa Payer 12:23, 19 September 2012 (EDT)