HISTORY.rc and other configuration files
The HISTORY.rc file
The HISTORY.rc file allows you to specify which diagnostic quantities will be archived to netCDF diagnostics (aka "History") in both GEOS-Chem "Classic" and GEOS-Chem with the High-Performance Option (aka GCHP).
For a detailed description of this file, please see the Sample HISTORY.rc diagnostic input file wiki section.
Please also see our Guide to GEOS-Chem History diagnostics for complete information about which diagnostics you can archive with the GEOS-Chem History component.
The Planeflight.dat file
The Planeflight.dat.YYYYMMDD files allow you to specify the diagnostic quantities (species, reaction rates, met fields) that you want to print out for a specific longitude, latitude, altitude, and time. See our Planeflight diagnostic wiki page for more information.
The ObsPack input file
Please see our our ObsPack diagnostic wiki page for more information about the format of ObsPack diagnostic input files.
Input files for the photolysis mechanism
GEOS-Chem v10-01 and later versions use the FAST-JX v7.0 photolysis mechanism. Several input files for the FAST-JX photolysis mechanism ship with the GEOS-Chem run directories. You should only have to modify these files if you wish to change the chemical mechanism or photolysis mechanism.
For more information, please see our Input files for FAST-JX v7.0 wiki post.
Additional input files for GCHP
If you are using GEOS-Chem with the high-performance computing option (aka GCHP), you will require a few additional input files beyond those described above. Please see our GCHP Run Configuration Files wiki page for more information.