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using the command sp2gpl, how to set the trunc

Added by xigua and summer about 7 years ago

when i use the command cdo -b 32 sp2gpl vort.spec.2012.nc vort.spec.2012.sp2gpl.nc, I get a Gaussian grid with 128x64 points. I want to get a T62 Gaussian grid with 192x94 points. I know i can set the value of trunc, which can be calculated by the formula of trunc = (nlat 2 − 1)/ 3. nlat is the number of latitudes of the resulting Gaussian grid. But the command cdo -b 32 sp2gpl,64 vort.spec.2012.nc vort.spec.2012.sp2gpl.nc is unuseful, what can i do for getting a T62 Gaussian grid with 192x94 points through the command sp2gpl?


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RE: using the command sp2gpl, how to set the trunc - Added by Uwe Schulzweida about 7 years ago

Try it with sp2gp:

cdo -b 32 sp2gp vort.spec.2012.nc vort.spec.2012.sp2gp.nc

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