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How wrf.exe program reads the wrfchemi_d0* and vertical interpolation to eta level


New member
Dear all,
I am using anthro_emis program to prepare emission file for wrfchem, but don't know how wrfchem reads the wrfchemi_d0* file and vertical interpolation to eta level. If I set the emissions_zdim_stag=34 for vetical levels, is the 34 levels same as wrf-chem eta level which I set in namelist.input or need to reinterpolation, and how it works? I want to consider the injection height of anthropogenic and openburning emission.
Any help on this will be greatly appreciated. Thank you for your time and consideration.