How to obtain grid process analysis parameters

CMAQ
1

Hello everyone,

I would like to obtain the process analysis parameters for all grids within my CMAQ simulation domain, but current PA can only set one subdomain.Given limited computational resources, can the existing tools in CMAQ achieve this?

Yunqing

2

I am not sure about how the computational limits of your system might come into play here, but the CCTM PA option can certainly be configured to output results for the entire grid.

As shown in the example 2018_12NE3 run script distributed with CMAQv5.4, simply not setting values for PA_BCOL_ECOL, PA_BROW_EROW, and PA_BLEV_ELEV will result in PA outputs being written for all grid cells and layers.

#> process analysis global column, row and layer ranges
#       setenv PA_BCOL_ECOL "10 90"  # default: all columns
#       setenv PA_BROW_EROW "10 80"  # default: all rows
#       setenv PA_BLEV_ELEV "1  4"   # default: all levels