Difference between revisions of "GEOS-Chem versions"

Revision as of 14:49, 14 September 2009

Here we have posted links to a separate wiki page describing each GEOS-Chem model version.

Current GEOS-Chem version in development

• GEOS-Chem v8-02-03 "beta"

Previously released GEOS-Chem versions

• GEOS-Chem v8-02-02 "beta"
• GEOS-Chem v8-02-01 "public"
• GEOS-Chem v8-01-04 "beta"
• GEOS-Chem v8-01-03 "beta
• GEOS-Chem v8-01-02 "beta"
• GEOS-Chem v8-01-01 "public"
• GEOS-Chem v7-04-13 "beta"
• GEOS-Chem v7-04-12 "beta

NOTES:

1. Information about 1-year benchmark simulations can be found on the individual wiki pages for each GEOS-Chem version listed above.
2. For versions prior to v7-04-12, please see the GEOS-Chem version history web page.

--Bob Y. 10:49, 14 September 2009 (EDT)

GEOS–Chem upgrade protocol

We use the Unix Concurrent Versions System (CVS) to archive the GEOS–Chem code. We update the code incrementally; only a few changes are made from one version to the next.

Each GEOS–Chem release is benchmarked with a 1-month standard benchmark simulation before it is released to the user community. The results of the 1-month benchmark are then compared to the results of the 1-month benchmark for the previous GEOS version. In this way, consistency between successive GEOS–Chem releases can be ensured. Prof. Daniel Jacob is currently responsible for examining the results of all GEOS–Chem 1-month benchmark simulations.

Some GEOS-Chem versions (i.e. those versions which we have made major changes to the emissions, chemistry mechanism, etc.). For those versions we also perform a 1-year benchmark simulation, which allows us to test the output of the model against both monthly and seasonal observations from a wide variety of sources, including aircraft campaigns, ozonesondes, and various ground stations. Jennifer Logan is currently responsible for examining the results of GEOS-Chem 1-year benchmark simulations.

--Bob Y. 16:10, 30 July 2009 (EDT)