error with netcdf file generated by cdo

[Arlindo da Silva]

B.-J.,
  Here is your problem:

      double time(time) ;
              time:units = "day as %Y%m%d.%f" ;
              time:calendar = "proleptic_gregorian" ;

This is  not coards compliant. The time units should say something like

"days since 2009-08-01".

If you can't fix the file you can always create a DDF for it fixing the time
axis.

    Arlindo


On Wed, Oct 14, 2009 at 8:05 PM, Ben-Jei Tsuang <btsuang at yahoo.com> wrote:

> Dear All:
>
> I created a netcdf file using "CDO".
> (http://www.mpimet.mpg.de/fileadmin/software/cdo/)
>
> "cdo -f nc chname,var11,sst -selhour,12 -selltype,1 -selcode,11
> flx.ft06.200908"
>
> I can read the netcdf file using ncdump. But when I try to sdfopen it
> using grads  v2.0.a7.oga.2. The error "SDF file does not have any
> non-coordinate variables" occurs.
>
> More details of the error and the messange of ncdump are listed as
> attatched. Your help are appreciated.
>
>
> Ben
>
> ------------------------------
> Config: v2.0.a7.oga.2 little-endian readline printim grib2 netcdf
> hdf4-sds hdf5 opendap-grids,stn athena geotiff
> Issue 'q config' command for more information.
> Loading User Defined Extensions table
> </nuwa_cluster/opt/grads-2.0.a7.oga.2/Classic/bin/gex/udxt> ... ok.
> Landscape mode? ('n' for portrait):  y
> GX Package Initialization: Size = 11 8.5
> ga-> sdfopen sst.200908.nc
> Scanning self-describing file:  sst.200908.nc
> SDF file has no discernable time coordinate -- using default values.
> gadsdf: SDF file does not have any non-coordinate variables.
> -----------------------------
>
>
> --
> Ben-Jei Tsuang
>
>
> ==================================
> [btsuang at nuwaln01 flx]$ ncdump sst.200908.nc |more
> netcdf sst.200908 {
> dimensions:
>       lon = 192 ;
>       lat = 94 ;
>       time = UNLIMITED ; // (31 currently)
> variables:
>       double lon(lon) ;
>               lon:long_name = "longitude" ;
>               lon:units = "degrees_east" ;
>               lon:standard_name = "longitude" ;
>       double lat(lat) ;
>               lat:long_name = "latitude" ;
>               lat:units = "degrees_north" ;
>               lat:standard_name = "latitude" ;
>       double time(time) ;
>               time:units = "day as %Y%m%d.%f" ;
>               time:calendar = "proleptic_gregorian" ;
>       float sst(time, lat, lon) ;
>               sst:code = 11 ;
>               sst:table = 132 ;
>               sst:grid_type = "gaussian" ;
>
> // global attributes:
>               :CDI = "Climate Data Interface version 1.3.2" ;
>               :Conventions = "CF-1.0" ;
>               :history = "Thu Oct 15 06:51:52 2009: cdo -f nc
> chname,var11,sst -selhour,12 -selltype,1 -selcode,11 flx.ft06.200908
> sst.200908.nc" ;
>               :CDO = "Climate Data Operators version 1.3.2
> (http://www.mpimet.mpg.de/cdo)" ;
> data:
>
>  lon = 0, 1.875, 3.75, 5.625, 7.5, 9.375, 11.25, 13.125, 15, 16.875, 18.75,
>
>
>
> --
> Ben-Jei Tsuang
> Dept. of Environmental Engineering
> National Chung-Hsing University
>



--
Arlindo da Silva
dasilva at alum.mit.edu
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