Hi All,
So, my CMAQ-DDM over East Asia worked fine until the point where some too big numbers popped out.
The SNO2/NOx from SENSGRID over three days:
Is it a numerical diffusion? I tried to reduce the time step but it didn’t help.
I remembered the same issue happened several years ago, and if my memory serves, it had something to do with the options incompatibility with the DDM.
Thanks!
Amir