Conversion .nc to .grb with win32 version of cdo

Added by Nicolas Clement over 13 years ago

Hello,
I need to convert a .nc to .grb to open the file (surface currents). There is no error message. But when I want to open the converted file with Adrena sofware or ugrib, I can't.
Any idea?

Below are both files.

Thanks

Download all files

21102010.nc (20.7 KB) 21102010.nc
file.grb (10.3 KB) file.grb

Replies (1)

RE: Conversion .nc to .grb with win32 version of cdo - Added by Uwe Schulzweida over 13 years ago

I'm not using the Adrena software or ugrib but I assume that they need specific parameter ids to identify the variables of a GRIB file.
CDO doesn't automatically detect the variables of your netCDF file. Therefor the parameter ids have to set manualy. Here is an example for the WMO Parameter table:

	parameter id
Temperature	11
U-velocity	33
V-velocity	34

cdo -f grb -chparam,-1,11,-2,33,-3,34 21102010.nc result.grb

Note that this is only an example, you have to find out which parameter table is expected from the tools.

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