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geoschem/geos-chem: GEOS-Chem 12.2.1

The International GEOS-Chem Community

GEOS-Chem 12.2.1 Released 28 Feb 2019 DOI

Contains the following updates:

(1) Bug fix: netCDF diagnostic collections with frequency "End" now properly span leap year days
(2) Move module-level variables from Linoz and MODIS LAI | Haipeng Lin (PKU)
(3) Make polar bromine explosion the default option in Hg simulation
(4) Add biomass burning subgrid coagulation option in TOMAS simulations
(5) Restore DST1, DST2, DST3, and DST4 in TOMAS simulations
(6) Fix Henry's Law coefficient for C2H6 | Chris Holmes (FSU) |
(7) Add routine to save the GC species database to JSON format (commented out)
(8) Add RRTMG fluxes to netCDF diagnostics
(9) Fix for CO2 simulation chemical source
(10) Update MODIS LAI source directory so that GCHP will read same data as GEOS-Chem Classic
(11) Missing scaling factors for MERRA-2 simulations with GCHP
(12) Use online sea flux emissions by default in GCHP

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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