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.
Contents
List of priorities as of May 2012
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 |
---|---|---|
Improved acetone simulation | Emily Fischer (Harvard) | Approved 14 Dec 2011 (v9-01-03b); awaiting release |
Complete shift of biogenic VOC emissions from GEIA to MEGAN; retire GEIA | Dylan Millet (U. Minnesota) | Approved 14 Dec 2011 (v9-01-03b); awaiting release |
OVOC's dry deposition | Jingqiu Mao (NOAA/GFDL) | Approved 19 Dec 2011 (v9-01-03c); awaiting release |
Improved sea salt emission & deposition | Lyatt Jaeglé (U. Washington) | Approved 12 Jan 2012 (v9-01-03d); awaiting release |
Dust submicron size distribution for optics | David Ridley (Colo. State) | Approved 12 Jan 2012 (v9-01-03d); awaiting release |
Improved snow scavenging and washout parameterization | Qiaoqiao Wang (Harvard) | Approved 02 Feb 2012 (v9-01-03e); awaiting release |
PARANOX ship plume emissions | Geert Vinken (Eindhoven) | Approved 17 Feb 2012 (v9-01-03f); awaiting release |
Hg(II) gas-aerosol partitioning | Helen Amos (Harvard) | Approved 09 Mar 2012 (v9-01-03h); awaiting release |
Nested-grid CO2 simulation | Yuxuan Wang (Tsinghua U.) | Approved 09 Mar 2012 (v9-01-03h); awaiting release |
Historical emission inventories of SO2, NOx, BC, and POA | Eric Leibensperger (MIT) | Approved 09 Mar 2012 (v9-01-03h); awaiting release |
Replace RETRO C2H6 emissions with emissions from the offline C2H6 simulation | Yaping Xiao (UNH) | Approved 26 Mar 2012 (v9-01-03i); awaiting release |
Replace existing regridding routines with the MAP_A2A regridding package | Matt Cooper (Dalhousie) | Approved 27 Apr 2012 (v9-01-03k); awaiting release |
Daily and 3-hourly GFED3 biomass emissions | Prasad Kasibhatla (Duke) | Delivered to GCST, slated for v9-01-03l |
Tropospheric bromine chemistry | Justin Parrella (Harvard) | Delivered to GCST, slated for v9-01-03m |
Stratospheric P and k (monthly climatological) | Lee Murray (Harvard) | Code is ready (awaiting delivery to GCST); slated for v9-01-03n |
--Melissa Payer 13:02, 16 April 2012 (EDT)
Ready to go in
Item | Author(s) | Status |
---|---|---|
Expanded SOA | Havala Pye (EPA/ORD) | Delivered to GCST, awaiting implementation |
Satellite-based NOx emission trends | Lok Lamsal (NASA GSFC) | Delivered to GCST, awaiting implementation |
Inorganic chemistry updates | Mat Evans (York) | Delivered to GCST, awaiting implementation |
New soil NOx emission module | Rynda Hudman (UC Berkeley) | Bram Massakers (Eindhoven) is visiting Harvard for Summer 2012 in order to integrate the new soil NOx emissions into the standard GEOS-Chem code. This will be added into the standard code in the release that immediately follows v9-01-03. |
Methyl peroxy nitrate (MPN) chemistry | Ellie Browne (UC Berkeley) | Delivered to GCST, awaiting implementation |
Acid uptake on dust aerosols | T. Duncan Fairlie (NASA/LARC) | Delivered to GCST, awaiting implementation |
Cloudwater pH for sulfate formation | Becky Alexander (U. Washington) | Delivered to GCST, awaiting implementation |
EPA/NEI2005 Hg emissions for US | Lyatt Jaeglé (U. Washington) | Delivered to GCST, awaiting implementation |
Streets future Hg emissions | Bess Corbitt (Harvard) | Delivered to GCST, awaiting implementation |
Nested-grid Hg simulation | Lyatt Jaeglé (U. Washington) | Delivered to GCST, awaiting implementation |
Updated Hg(0) oxidation kinetics | Justin Parrella (Harvard) | Delivered to GCST, awaiting implementation |
Capability to use GEOS-Chem Br/BrO fields in Hg simulation | Bess Corbitt (Harvard) Justin Parrella (Harvard) |
Delivered to GCST, awaiting implementation |
Tagged sulfate and nitrate simulation | Becky Alexander (U. Washington) | Code is ready |
Update to EDGAR 4 anthropogenic emissions | Qiang Zhang (Tsinghua) | Code is ready |
Improved HO2 uptake by aerosol | Jingqiu Mao (NASA/GFDL) | Code is ready |
Fix RO2+HO2 rate constant | Fabien Paulot (Harvard) | globchem.dat is ready |
--Melissa Payer 14:45, 14 March 2012 (EDT)
Almost there (< 6 months)
Item | Author(s) | Status |
---|---|---|
FAA/AEDT aircraft emissions inventory | Steven Barrett et al (MIT) | Code delivered to GCST, on hold |
Longwave & shortwave RF codes for chemistry-climate | Fangqun Yu (SUNY Albany) | |
APM capability for nested grid | Fangqun Yu (SUNY Albany) | |
Interannual lightning | Lee Murray (Harvard) | |
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) | |
Improve temporal resolution of anthropogenic CO2 sources | Ray Nassar (Environment Canada) | |
Improvements to isoprene chemistry, standardization of Paulot Scheme | Fabien Paulot (Harvard) Eloise Marais (Harvard) Jingqiu Mao (NASA/GFDL) Mat Evans (York) |
|
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 writes:
|
Update Asian emissions | Qiang Zhang (Tsinghua) |
--Melissa Payer 10:45, 5 December 2011 (EST)
Over the horizon (6-12 months)
Item | Author(s) | Status |
---|---|---|
Working with GEOS-5.7.2 | GEOS-Chem Support Team | Initial changes already added into v9-01-03; validation is ongoing |
Nested-grid model at 0.25° x 0.3125° resolution | Yuxuan Wang (Tsinghua) | Development is ongoing |
High-resolution emissions for above nested-grid model | Yuxuan Wang (Tsinghua) | Development is ongoing |
Improved operator splitting | Mauricio Santillana (Harvard) | Development is ongoing |
Update HCN simulation | Qian Li (U. Edinburgh) Dylan Jones (U. Toronto) |
|
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) | |
Improved dust simulation in nested-grid model | Rokjin Park (Seoul Nat'l Univ.) | |
Improve ocean CO2 flux | Ray Nassar (Environment Canada) Kevin Bowman (JPL) |
|
CESM/CAM5 interface for chemistry-climate | Rokjin Park (Seoul Nat'l Univ.) Joshua Fu (U. Tennessee) |
|
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) |
--Bob Y. 13:45, 17 May 2012 (EDT)
Longer term (> 12 months)
Item | Author(s) | Status |
---|---|---|
Grid-independent GEOS-Chem | GEOS-Chem Support Team |
|
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 | This has more or less been achieved with the addition the following 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. |
Link column version of GEOS-Chem with GEOS-GCM for chemistry-climate | GEOS-Chem Support Team | NOTE: This project has been folded into the Grid-independent GEOS-Chem project. |
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)
--Bob Y. 10:01, 30 March 2012 (EDT)