- Does anyone know why it seems there is now a firm requirement in CMAQv5.3.1 that the PURB variable is available in the gridcro2d file? I have checked the CMAQv5 information that it can be avoided if KZMIN=N, but in the new centralized io subroutine retrieve_grid_cr, the model aborts if the PURB variable is not available regardless of the KZMIN setting.
I am probably missing the correct documentation on 5.3.1, so that could help too.
- On that note, I would also like to know if CMAQv5.3.1 could run with no fractional land use variables (i.e., LUFRAC_*) in the input files whatsoever, which seems a hard requirement to be included in the gridcro2d file still. So any further suggestions on any nuances I may be missing here would also be very much appreciated.
Any information is much appreciated! Thank you,