Wrong values in the grib file converted from netcdf by CDO
Added by Annie Jasmine about 5 years ago
Hi everyone,
I encountered a problem of wrong values in the grib file "soilt2_cropped.grb" which is converted from the netcdf file "soilt00.175_cropped_domain.nc" by CDO. All values in the converted file are 0. The original file, converted file and zaxis file are attached and the CDO command is as below.
cdo -f grb setzaxis,zaxis5_25 -setltype,112 -selname,tsl -setcode,11 -setreftime,2006-01-01,00:00:00,1day -settaxis,2013-09-27,18:00:00,1month soilt00.175_cropped_domain.nc soilt2_cropped.grb
Any suggestion to fix this error is much appreciated!
| soilt2_cropped.grb (176 Bytes) soilt2_cropped.grb | |||
| soilt00.175_cropped_domain.nc (110 KB) soilt00.175_cropped_domain.nc | |||
| zaxis5_25 (135 Bytes) zaxis5_25 |
Replies (4)
RE: Wrong values in the grib file converted from netcdf by CDO - Added by Uwe Schulzweida about 5 years ago
Your NetCDF data contains missing values which are not registered by the attribute missing_value. Unfortunately the missing values are NaNs, which are not supported by the GRIB library. You can use "setctomiss,nan" to convert the NaNs to the default missing_value:
cdo -f grb setctomiss,nan -setzaxis,zaxis5_25 -setltype,112 -selname,tsl -setcode,11 -setreftime,2006-01-01,00:00:00,1day -settaxis,2013-09-27,18:00:00,1month soilt00.175_cropped_domain.nc soilt2_cropped.grb
RE: Wrong values in the grib file converted from netcdf by CDO - Added by Annie Jasmine about 5 years ago
It works! Thank you so much, Uwe! Could you please show me any documentation about missing_value supported by the GRIB library
RE: Wrong values in the grib file converted from netcdf by CDO - Added by Uwe Schulzweida about 5 years ago
Sorry, we don't have any documentation about missing_value supported in our GRIB library.
RE: Wrong values in the grib file converted from netcdf by CDO - Added by Annie Jasmine about 5 years ago
Uwe Schulzweida wrote:
Sorry, we don't have any documentation about missing_value supported in our GRIB library.
anyway, thank you Uwe!