Here we have posted links to a separate wiki page describing each GEOS-Chem model version.
GEOS-Chem development history
In the sections below, we list information about current and past GEOS-Chem releases.
- Information about 1-year benchmark simulations can be found on the individual wiki pages for each GEOS-Chem version listed below.
- For versions prior to v7-04-12, please see the GEOS-Chem version history web page.
--Bob Y. 15:25, 16 January 2014 (EST)
Current GEOS-Chem version in development
|Version||Expected release||Important features||Benchmark history|
|GEOS-Chem v11-01||early 2015||FlexChem; Species Database; Area-independent tracer units||v11-01 history|
Previously released GEOS-Chem versions
NOTE: Each new GEOS-Chem version since v9-01-02 is now evaluated with one or more 1-year benchmark simulations prior to release. Therefore, each new GEOS-Chem version is now equivalent to what we used to call a "public release" prior to v9-01-02. We have since stopped using the terms "public release" and "beta release".
|Version||Date Released||Important features||Benchmark history|
|GEOS-Chem v10-01||01 May 2015 (provisional)
17 June 2015 (public)
|UCX chemistry mechanism; HEMCO, Online radiative transfer||v10-01 history|
|GEOS-Chem v9-02||17 Jan 2014 (provisional)
03 Mar 2014 (public)
|Updated soil NOx emissions module, POPs simulation, Inorganic chemistry updates, Methyl peroxy nitrate chemistry, Adopt Paulot isoprene scheme as standard, RCP emission scenarios, AEIC aircraft emissions inventory, GEOS-FP met fields||v9-02 history|
|GEOS-Chem v9-01-03||14 Sep 2012||Updated acetone sources & sinks; Improved sea salt emission & deposition; Improved snow scavenging and washout parameterization; Tropospheric bromine chemistry; Stratospheric P and k (monthly climatological)||v9-01-03 history|
|GEOS-Chem v9-01-02||28 Nov 2011||APM aerosol microphysics; GFED3 biomass emissions; RETRO Anthropogenic Emissions; Various fixes to correct several identified issues||v9-01-02 history|
|GEOS-Chem v9-01-01||07 Jun 2011||Compatibility with the GMAO MERRA met data product; Updated lightning NOx; various fixes||v9-01-01 history|
|GEOS-Chem v8-03-02||07 Sep 2010||Updated Hg and CO2 simulations|
|GEOS-Chem v8-03-01||04 May 2010||ISORROPIA II; TOMAS microphysics option; Updates to SOA and photolysis|
|GEOS-Chem v8-02-04||24 Feb 2010||LINOZ strat chemistry; NEI2005 anthro emissions; MEGAN v2.1 biogenic emissions|
|GEOS-Chem v8-02-03||Oct 2009||KPP solver; ICOADS emissions; Updated makefile structure|
|GEOS-Chem v8-02-02||08 Jun 2009||Non-local PBL mixing scheme; Updated Bond BC & OC emissions|
|GEOS-Chem v8-02-01||26 May 2009||Updated chemistry & photolysis reactions; Glyoxal chemistry mechanism|
|GEOS-Chem v8-01-04||10 Mar 2009||Various emissions updates (regional & global inventories); GFED2 biomass emissions updates|
|GEOS-Chem v8-01-03||Dec 2008||Installation of GMI TPCORE routine|
|GEOS-Chem v8-01-02||Nov 2008||Nested grid simulations for 0.5° x 0.666°|
|GEOS-Chem v8-01-01||May 2008||Capability to run with GEOS-5 met fields|
|GEOS-Chem v7-04-13||Nov 2007||H2/HD simulation; Bug fixes in SMVGEAR, lightning, and dynamic tropopause|
|GEOS-Chem v7-04-12||Oct 2007||Introduction of dynamic tropopause|
--Bob Y. 15:25, 16 January 2014 (EST)
Mean OH from GEOS-Chem 1-year benchmark simulations
Here is a plot of the mean OH concentration from several recent GEOS–Chem 1-year benchmark simulations. The mean OH is an indicator how the chemistry mechanism is performing. Typical values are 10–12 x 105 molecules cm-1.
--Bob Y. 12:41, 17 January 2014 (EST)
GEOS–Chem Benchmarking Procedure
For a complete description about the the standard 1-month and 1-year benchmark simulations, please see our GEOS-Chem Benchmarking web page.
--Bob Y. 15:47, 30 April 2015 (EDT)