Format netCDF files for input to HEMCO

This community contribution script formats a netCDF file so that its global and variable attributes are COARDS-compliant. This is a requirement for input to GEOS-Chem via the Harmonized Emission Component (HEMCO).

Please reach out to the author directly if you have questions about using this script:

Author	GitHub Handle
Hannah Nesser	@hannahnesser

Source code

Script location: gcpy/community/format_hemco_data.py

Related example script: gcpy/examples/hemco/format_hemco_demo.py

Usage

Navigate to a local directory where you will run the script. Then download this data file from the AWS s3://gcgrid bucket:

$ wget https://gcgrid.s3.amazonaws.com/HEMCO/GCClassic_Output/14.0.0/2019/GEOSChem.ProdLoss.20190101_0000z.nc4

and rename it to HEMCO_demonstration_file.nc:

$ mv GEOSChem.ProdLoss.20190101_0000z.nc4 HEMCO_demonstration_file.nc

Then you may run the demonstration script:

$ python -m gcpy.examples.hemco.format_hemco_demo

You can view the gcpy/examples/hemco/format_hemco_demo.py script in your favorite editor to see the individual commands that are executed.