CDO

Hello,

I have read all threads about convert NetCDF from WRF to Grib but I still for me doesn't work.

What I do? Step by step:

cdo -f grb -selgrid,1,5,6 wrfout_d01_2012-12-15_12:00:00.nc wrfout_d01_2012-12-15_12:00:00.grb

Some grib file was created, but grib_ls shows me something like this:

edition      centre       typeOfLevel  level        dataDate     stepRange    shortName    packingType  gridType
1            0            surface      0            20121215     0            unknown      grid_simple  regular_ll
1            0            surface      0            20121215     0            unknown      grid_simple  regular_ll
1            0            surface      0            20121215     0            unknown      grid_simple  regular_ll
1            0            unknown      1            20121215     0            unknown      grid_simple  regular_ll
1            0            unknown      2            20121215     0            unknown      grid_simple  regular_ll
1            0            unknown      3            20121215     0            unknown      grid_simple  regular_ll
1            0            unknown      4            20121215     0            unknown      grid_simple  regular_ll

I also get some information:

Warning (cgribexDefGrid) : Curvilinear grids are unsupported in GRIB1! Created wrong GDS!

How to do it?

cdo -V

Climate Data Operators version 1.5.9rc5 (http://code.zmaw.de/projects/cdo)
Compiler: gcc -std=gnu99 -g -O2 -pthread
 version: gcc (Gentoo 4.6.0 p1.3, pie-0.4.5) 4.6.0
    with: PTHREADS NC4 Z JASPER
Compiled: by spysz on WRF-Model (x86_64-unknown-linux-gnu) Dec 15 2012 20:03:09
     CDI library version : 1.5.9 of Dec 15 2012 20:03:03
 CGRIBEX library version : 1.5.6 of Dec 11 2012 10:23:52
GRIB_API library version : 1.9.16
  netCDF library version : 4.2.1.1 of Dec  4 2012 08:53:24 $
 SERVICE library version : 1.3.1 of Dec 15 2012 20:02:52
   EXTRA library version : 1.3.1 of Dec 15 2012 20:02:48
     IEG library version : 1.3.1 of Dec 15 2012 20:02:50
    FILE library version : 1.8.1 of Dec 15 2012 20:02:48

WRF version 3.4
grib_api version 1.9.16

Best regards,
Simon