I am running the WRF v4.0 model with the wrfinput files obtained from the previous WRF V 126.96.36.199 with the use_theta_m =1 option.
I am not able to run the WRF v4.0 with use_theta_m =1 option, because the wrf.exe complains that:
So, I have to set use_theta_m =0 (which shows poorer results) to run the wrf.exe (v4.0).---- ERROR: Cannot have old input data when requesting use_theta_m=1
Please note, I have already set force_use_old_data = .true. in my namelist.input file (attached).