GEOS-Chem model development priorities

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	Modifications currently are being made to GEOS-Chem for MERRA data
APM aerosol microphysics	Fangqun Yu	Slated for inclusion post-GEOS-Chem v8-03-02, 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 v8-03-02.
Anthropogenic VOCs update	Dylan Millet	Need new MEGAN emission from terpenes
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
Updated strat chem. from GMI Combo	Dylan Jones
Convert model output to NetCDF	GEOS-Chem Support Team
Data servers for chemistry/climate databases	Loretta Mickley
GFED3 biomass burning	Prasad Kasibhatla
Updated aircraft emissions	Lee Murray
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. 16:42, 7 September 2010 (EDT)