Hi,as a first step I would produce a monthly climatology. There is a description in the ferret manual. As a next step just use:
let var_jjas= your_monthly_var[l=6:9@ave] Greetings, Martin Am 11.02.2017 um 11:57 schrieb Nitin Patil:
Dear all, I have 10 yrs of monthly data in netcdf. I have to plot the average of only JJAS and MAM months from 10 yrs of data, Can anyone have any idea to select in ferret?