Dear Grads user's I have ncep reanalys data at 2.5° resolution in netcdf format and i would like to regrid them at 1.5° resolution and in netcdf Format. How must i do in grads for regriding the NCEP data. in fact i have 2 version of grads (grads 1.9b4 and 2.07a). does someone teach me how to solve this difficulty. Sincerely Cheers!!!!!!! DIALLO