Calculating hourly mean using CDO for multiple years

I need some help in calculating the hourly mean for the netcdf data from a model output using CDO command. Each of the files contains hourly time steps for 23 years. I had already use yhourmean for calculating hourly data in 23 years and it show 8784 time steps but i want the output file just show 24 time steps which are stand for 24 hour. Attached are the example i want my data o be display Thanks in advance

example 24 data.PNG (60.4 KB) example 24 data.PNG

Example

Replies (1)

RE: Calculating hourly mean using CDO for multiple years - Added by Ralf Mueller almost 7 years ago

Hi!

There is not such operator in CDO since and hourly climatology is pretty unusual IMO. But I can offer you a workaround:

Lets say <ifile> holds your hourly data of several years, then you can select each our, do a timmean on it and cat all files together afterwards:

for hour in $(seq 1 24); 
  do cdo -timmean -select,hour=${hour} ifile ${hour}_ifile;
done;
cdo cat *_ifile hourlyClimatology_ifile.nc

depending on the speed of your IO, you might run the for loop in a parallel mode.

hth
ralf

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