How to calculate seasonal and annual precipitation Anomaly for 30 years using CDO?

18 July 2023 1 6K Report

Climate Data Operators (CDO)

Dear Awad, to calculate seasonal precipitation Anomaly for 30 years using CDO you can do this as follows:

cdo ymonmean infile.nc outfile_climatology.nc #### The command "cdo ymonmean" is used to calculate the monthly mean of a dataset

and then

cdo ymonsub infile.nc outfile_climatology.nc outfile_anomalies.nc ####cdo ymonsub is used to calculate monthly anomalies from monthly climatologies

I hope this can help you

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