Recently I am working for tracking ozone sensitivity through NOx and VOCs by using CMAQ-DDM. And I am confused about the meaning of variables in the ASENS file. I found that all species were classified to 2 types (one was O3_ENS, and another one was O3_ESX).
May I ask what the specific meaning about these variables ?
Besides, if I want to track ozone sensitivity through NOx and VOCs by using CMAQ-DDM, how can I set the sensinput.cmas.dat ?
Thanks for the response. Due to the limitation of emission inventory, I only have one area emission source for the CMAQ-ISAM model. So can I calculate the the ozone formation from VOCs
and NOx separate by only using one area emission source ？
Do you mean you only have one emission source, and that it is an area source, ie. that you have no point sources in your emissions inventory?
I believe you could still do the ISAM to determine the amount of ozone due to VOC from a specific region within your domain.
How to specify the region that is adjusted for scaling: