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I ran my simulation with chemdiag=1. But I cannot find the diagnostics (such as conv_o3, chem_o3, vmix_o3, etc.) in my wrfout files. I am wondering is there any other thing I need to do to enable the output of chemical diagnostics? Thank you!
You can output those variables in one of two ways -
1. Run "./clean -a"
2. add an "h" the variables in Registry/registry.chem that you want output (.e.g., change this:
state real chem_co ikjf chem_ct 1 - r "chem_co" "ACCUMULATED CHEM TENDENCY FOR CO" "ppmv"
state real chem_co ikjf chem_ct 1 - rh "chem_co" "ACCUMULATED CHEM TENDENCY FOR CO" "ppmv"
3. Recompile the model
Add a custom i/o fields file (see the WRF-Chem user guide) to your run directory and set in your namelist.