Dear Graziano,
Thank you very much for immediate response. I will check on the subroutines.
Postproc.in, I used it to as Post-processing step to create the final merged output file that I will then analyse for some of those variables (rt, t2m, ua, va etc) I have mentioned above. So it means I have to do the interpolation and time avergind steps you mention above before I can start my analyses. So I thought there was a mistake since I could not find
postproc.in to include in the postprocessing of the simulations.
Using ncdump -h to view a SRFxxxxxx.nc or ATMxxxxxx.nc shows more variables than can be viewed t if I open in Grads. That's why I raised it as I cannot view them.