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Problem with enlarge command

Added by Francis Rayder about 10 years ago

I have a file titled modern_sst.nc with values for today's sea surface temperatures on a 180 x 90 regular grid. I use the command zonmean to calculate the zonal means:
cdo zonmean modern_sst.nc modern_sst_mean.nc

I now have an output file with 1 longitude and 90 latitudes. Now I am trying to get back to a 180 x 90 grid, with the mean values in all cells along a latitude. I use the command enlarge:
cdo enlarge,r180x90 modern_sst_mean.nc modern_sst_mean_180x90.nc

However, it appears that the enlarge operation turns the data in the modern_sst_mean_180x90.nc output file upside down. Latitudes are reversed! Is this a bug, or am I doing something wrong?

I am attaching both the modern_sst_mean.nc and modern_sst_mean_180x90.nc files so you can have a look.


Replies (1)

RE: Problem with enlarge command - Added by Uwe Schulzweida about 10 years ago

r180x90 is a predefined regular lon/lat grid with an orientation from south to north. You have to use your original data file as parameter for the enlarge operator to get the same orientation:

cdo enlarge,modern_sst.nc  modern_sst_mean.nc modern_sst_mean_180x90.nc

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