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geoschem/geos-chem: GEOS-Chem 12.8.0

The International GEOS-Chem User Community

GEOS-Chem 12.8.0
04 May 2020

This version includes the following updates:

  1. Isoprene chemistry
  2. Wet deposition parameterization
  3. Ozone deposition to the ocean
  4. Use online DustDead, MEGAN, SeaSalt, and SoilNOx emissions for benchmark simulations
  5. Shift CMIP6 time from middle to start of month to allow start in January
  6. GFED 4.1s beta emissions for 2017-2019
  7. Replace State_Chm%nAero with State_Chm%nAeroSpc and State_Chm%nAeroType
  8. Convert all files in GeosCore, GeosUtil, and Headers to .F90
  9. Change GEOS-Chem timers from a CPP switch to an option in input.geos
  10. Remove potential for surface CH4 retrieval error in SET_CH4 due to reliance on HEMCO emissions year
  11. Fix leap year handling bug in GCHP multi-run script
  12. Fix SH surface ozone bias in GCHP

Read 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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