Dear CMAQ users,
I tried to use CMAQv5.2.1 to simulate AOD outputs and want to evaluate the simulated AOD outputs. The followings are my questions:
Is the CMAQ-based AOD (CCTM_AOD_DIAG) a 2-Dimensional output instead of a 3-D output? According to my test case, the AOD is a 2-dimensional output. Does the CMAQ only generate 2d, or is there any other setting that I can change to get 3d output?
If it is a 2-d, does it represent AOD at surface layer or aggregated AOD through multiple layers (e.g., 35 layers as my METCRO3D file). I didn’t find any detailed information about the CMAQ-AOD output from CMAQ user manual.
How to evaluate CMAQ simulated AOD outputs? As provided by CMAQv5.2.1 Release Notes, the CMAQ model “estimates the light extinction of aerosols at 550nm”. Does it mean that we can compare CMAQ-based AOD with MODIS-derived AOD at 550 nm, or compared to AERONET AOD to evaluate CMAQ model performance?
Thank you for your help,