[gradsusr] gadsdf: Time unit has too small an increment (min. 1 minute).

[Muhammad Rahiz]

The error you get is because you did a time average for each year and CDO 
concatenates the results into one output file. If you
do "cdo info ifile.nc" you'll see that the timestamp  is 0 and GrADS does
not like this.

One way to overcome this is to run the CDO command and output each year to 
a file. Alternatively, you issue "cdo splityear" on the outputfile.

You should have no problems opening the yearly files in GrADS.


-- 
Muhammad Rahiz
Researcher & DPhil Candidate (Climate Systems & Policy)
School of Geography & the Environment
University of Oxford

On Thu, 6 Jan 2011, saiguran loisulie wrote:

> Hi
> 
> My GrADS version/configurations are "Config: v2.0.a8 little-endian readline printim grib2 netcdf hdf4-sds hdf5
> opendap-grids,stn geotiff shapefile "
> 
> I have monthly mean files from NCEP Reanalysis;
> 
> I used "cdo -r  yseasavg air2m.mon.mean.nc air2m.seas.mean.nc" to generate seasonal climatologies but I get the
> following error;
> 
> sdfopen air2m.seas.mean.nc
> Scanning self-describing file:  air2m.seas.mean.nc
> gadsdf: Time unit has too small an increment (min. 1 minute).
> 
> I also tried;
> 
> cdo yseasavg air2m.mon.mean.nc air2m.seas.mean.nc
> 
> But when I;
> 
> ga-> sdfopen air2m.seas.mean.nc
> Scanning self-describing file:  air2m.seas.mean.nc
> SDF file has no discernable time coordinate -- using default values.
> gadsdf: SDF file does not have any non-coordinate variables.
> 
> 
> Any suggestions on how to handle this?
> 
> Thank you.
> Saiguran Loisulie
> Climate Systems Analysis Group
> Environmental and Geographical Science Department
> University of Cape Town
> Private Bag X3
> Rondebosch
> 7701
> SOUTH AFRICA
> 
> CELL 0748 068 230
> 
>