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geoschem/geos-chem: GEOS-Chem 12.2.0

The International GEOS-Chem User Community

GEOS-Chem 12.2.0 Released 19 Feb 2019 DOI

Contains the following updates:
(1) Retire BRAVO emissions and use CEDS for Mexico instead
(2) Update mask file applied to NEI2011 emissions
(3) Transport Tracers simulation: a common set of tracers in GEOS-Chem and GEOS
(4) ObsPack diagnostic
(5) GFAS biomass burning emissions (as an option)
(6) Fix bug in stratosperic aerosol surface area netcdf diagnostics
(7) Update from HEMCO 2.1.010 to HEMCO 2.1.011:
(7a) Now wrap the remaining HEMCO extensions in instances (to facilitate running in HPC environments)
(7b) Update HEMCO standalone for compatibility with FlexGrid met field names
(7c) HEMCO standalone now calls HCO_RUN in two phases
(8) Update ESMF version in GCHP from v5.2.0rp2 to v7.1.0r
(9) New fields in GCHP output restart file
(10) Bug fix: use checkpoint output file as subsequent run restart

For more information about this release. please see:

Also please see the GEOS-Chem online manual at:

This release is compatible with GCHP. See the GCHP online manual for more information:

Learn how you can run GEOS-Chem on the Amazon Web Services cloud computing platform:

Please see the LICENSE.txt and AUTHORS.txt files in the root folder for the GEOS-Chem license description (based on the MIT license) and a complete list of authors. For more information about GEOS-Chem in general, please see and
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