CODEWITHSUNDEEP
linuxnetcdfncocdo-climate
posh8593
posh8593

Reputation: 31

NCO netcdf4 operations - ncwa (Averaging)

I am having trouble trying to combine three files to be averaged. I am not so sure how to even start. I have three files

"nday1.06.nc , nday1.07.nc, nday.08.nc"

each with the variables 

"filling on), ('SST', <class 'netCDF4._netCDF4.Variable'>
          float32 SST(time, nlat, nlon)
              long_name: Surface Potential Temperature
              units: degC
              coordinates: TLONG TLAT time
              grid_loc: 2110
              cell_methods: time: mean time: mean time: mean
              _FillValue: 9.96921e+36
          missing_value: 9.96921e+36
          unlimited dimensions: time
          current shape = (1, 2400, 3600)

I just need to average the SST variables and then an output file with the averages

Upvotes: 0

Views: 498

Answers (2)

msi_gerva
msi_gerva

Reputation: 2078

Similarly, you could you use cdo, but you first need to merge the files:

cdo mergetime nday1.06.nc nday1.07.nc nday.08.nc mergedfile.nc

and then average:

cdo timmean mergedfile.nc out.nc

Upvotes: 1

Eric Bridger
Eric Bridger

Reputation: 3794

You need ncra not ncwa

http://nco.sourceforge.net/nco.html#ncra

 ncra nday1.06.nc nday1.07.nc nday.08.nc out.nc

Upvotes: 2

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