GEOS-Chem model development priorities

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This is a list of planned GEOS-Chem model development items over the next two years, based on discussions and GEOS-Chem Working Group reports from the April 2009 GEOS-Chem Users' Meeting. The key model developer or model contact is identified for each item. Items are listed in rough order of decreasing readiness, although this can quickly change.

We count on user input to augment and prioritize this list, please contact your Working Group Chair or model scientist Daniel Jacob.

Items that are now included in GEOS-Chem

Item Author(s) Completion Date
Improved BL mixing scheme Jintai Lin Now included in GEOS-Chem v8-02-02; released 08 Jun 2009
BC/OC aerosol emissions from Bond inventory Eric Leibensperger Now included in GEOS-Chem v8-02-02; released 08 Jun 2009
Chemical updates Mat Evans
Fabien Paulot
Jingqiu Mao
Paul Palmer
Updated chemical mechanism and photolysis files
globchem.dat, jv_spec.dat, ratj.d
(see documentation)
Now included in GEOS-Chem v8-02-01; released 26 May 2009
Common model adjoint and documentation Daven Henze
Kumaresh Singh
Monika Kopacz
Code merging session took place June 6-9, 2009 @ Virginia Tech
  • Merged 3 branches of adjoint
  • Forward model now based on v8-02-01 (w/ GEOS-5)
  • Input files cleaned up and standardized
  • New makefiles; code separated into subdirectories
  • New CVS repository @ U. Colorado for code access
  • Some minor cleanup may still be needed (as of June 2009)
Local stratospheric ozone column from GEOS-5 GEOS-Chem Support Team Now included in GEOS-Chem v8-02-03, released 14 Oct 2009
KPP chemical solver Kumaresh Singh Now included in GEOS-Chem v8-02-03, released 14 Oct 2009
ICOADS ship emissions Chulkyu Lee Now included in GEOS-Chem v8-02-03, released 14 Oct 2009
Methane including tagged tracers Kevin Wecht Now included in GEOS-Chem v8-02-03, released 14 Oct 2009
Linoz stratospheric ozone chemistry Dylan Jones Now included in GEOS-Chem v8-02-04, released 24 Feb 2010
Aerosol data sets for benchmarking Colette Heald IMPROVE PM2.5 data are now included in the 1-yr benchmark plots
starting with GEOS-Chem v8-02-04
TOMAS aerosol microphysics Peter Adams
Dan Westervelt
Win Trivitayanurak
Now included in GEOS-Chem v8-03-01, released 04 May 2010
Updated aerosol optical properties Colette Heald
Randall Martin
and the Aerosols Working Group
Now included in GEOS-Chem v8-03-01, released 04 May 2010
Global 1x1.25 model capability Lok Lamsal Now included in GEOS-Chem v8-03-01, released 04 May 2010
ISORROPIA II Havala Pye
Thanos Nenes
Becky Alexander
Now included in GEOS-Chem v8-03-01, released 04 May 2010
CO2 including tagged tracers Ray Nassar Now included in GEOS-Chem v8-03-02, released 07 Sep 2010
Terrestrial and deep ocean mercury Nicole Smith-Downey
Elsie Sunderland
Chris Holmes
and Team-Hg
Now included in GEOS-Chem v8-03-02, released 07 Sep 2010

--Bob Y. 16:42, 7 September 2010 (EDT)

Items that have yet to be included in GEOS-Chem

Item Author(s) Status
Acquire long-term MERRA archive GEOS-Chem Support Team Compatibility for MERRA will be introduced in GEOS-Chem v9-01-01
APM aerosol microphysics Fangqun Yu Slated for inclusion post-GEOS-Chem v9-01-01, pending validation
Tropospheric bromine chemistry Justin Parrella We have begun the process of adding this to the standard code. Slated to be incorporated post-GEOS-Chem v9-01-01.
Anthropogenic VOCs update Dylan Millet
Need new MEGAN emission from terpenes. Also will implement the RETRO anthropogenic emissions.
GFED3 biomass burning Prasad Kasibhatla In final testing. Slated for inclusion into GEOS-Chem v9-01-02
Updated strat chem. from GMI Combo Dylan Jones Lee Murray has implemented this into a version of G-C. Slated for inclusion into the standard code after the GEOS-Chem v9-01-01 release.
Convert model output to NetCDF GEOS-Chem Support Team Lee Murray has mature code for reading netCDF files. This be installed in GEOS-Chem v9-01-02. The code can be extended to write netCDF files, but this be more time-consuming.
Updated aircraft emissions Lee Murray We are waiting for MIT to provide us with the latest FAA aircraft emissions. Estimated handover date: late Feb 2011.
Addition of aromatics to SOA simulation Daven Henze to be added in short order following v8-02-01 release
Archive tropospheric OH fields from benchmark runs GEOS-Chem Support Team  
Flexible region mask for tagged tracers Dylan Jones
Prasad Kasibhatla
 
Data servers for chemistry/climate databases Loretta Mickley  
Interannual lightning Lee Murray  
Fire injection heights Maria Val Martin  
CCSM3 interface Rokjin Park  
Soil NOx emissions Randall Martin
Rynda Hudman
In beta testing
PBAP Colette Heald  
Sulfate/nitrate isotopes Becky Alexander  
ESMF/MPI capability GEOS-Chem Support Team GEOS-Chem column code is being interfaced into the GEOS-5 GCM
Spatial reduction mechanism Mauricio Santillana  
GISS Model E interface Lee Murray Please read the GISS Model E Memo by (Lee Murray and Loretta Mickley) for the latest information.

--Bob Y. 15:53, 24 January 2011 (EST)