Truncating netCDF

Question

I have a netCDF file of monthly surface air temperature from 1850-2005. How can I truncate the file in unix so that the new file has a time dimension from 1855 - 2005? And vice versa, truncating the file so that it is instead for 1850-2000?

Answer 1

Using NCO

ncks -d time,60, in.nc  1855-2005.nc
ncks -d time,,-60 in.nc 1850-2000.nc

See documentation