Hi all,
I’m converting CMAQ-ready-to-use emission files to wrfchemi* files. I have 34 layers for my WRF/Chem emission, but there’s only 1 layer in the CMAQ emission. I think I need to do vertical allocation for them, but just don’t know how to do that. Does anyone have advice for me? I’ll highly appreciate that!
Do you have both gridded and point source emission files that you are trying to use? If you have point source files with stack information then we do not have a tool for recomputing plume rise in WRF-CHEM.
Hello! Did you fix this, I had the same situation, using CMAQ to simulate a layer of one. I don’t know how to modify it to simulate vertical multi-layers.
2D CMAQ-ready emissions files can be vertically layered with the SMOKE tool layalloc, provided that you have a set of MET_CRO_3D files on the corresponding grid and your target layer allocation fractions.
https://www.cmascenter.org/smoke/documentation/5.0/html/ch03s03s08.html
First of all, thanks for your reply！Do you mean that you need to relocate the 2D emissions file to 3D? The original model setup used MCIP to generate METCRO3D, and when I read 29 layers of contaminant data using python, I found that they changed very little, is that reasonable?