WRF-GHG user guide

This guide provides a comprehensive overview of the greenhouse gas (GHG) option (chem_opt=17) in WRF-Chem, synthesizing key information from the model code, WRF-Chem User's Guide, Emissions Guide, and the WRF-GHG report by Beck et al. (2011)

Designed to help new users, this guide should make it easier to start using WRF-GHG. It might also bring helpful insights for users of the CO2 option (chem_opt=16), known as WRF-VPRM.

Note that this guide was written based on experience with WRF-Chem version 4.1.5 and may not fully apply to future versions.