[gradsusr] Descriptor file creation for 365 day calander

Andrew Friedman andfried at gmail.com
Mon May 28 12:45:44 EDT 2018

Hi Saddam,

These posts discuss how to open 365-day calendar files: http://gradsusr.org/pipermail/gradsusr/2011-June/030235.html 


> On May 27, 2018, at 5:56 PM, Saddam M. <e.sadam91 at gmail.com> wrote:
> Hello everyone
> I have been trying to plot a map from the netcdf file with a 365 days time step in a year using GrADS 2.0.a7 version. However, it showing me an error that 365 day calander is no longer supported and i have to add a descriptor file.  the error messages are as below;
> gaopnc error:
> read_metadata: gaopnc failed
> gadsdf: Couldn't ingest SDF metadata.
> SDF Error: 365 day calendars are no longer supported by sdfopen.
>   To open this file with GrADS, use a descriptor file with
>   a complete TDEF entry and OPTIONS 365_day_calendar.
>   Documentation is at http://iges.org/grads/gadoc/SDFdescriptorfile.html
> I was trying to write the the control file using the template that i got from one colleague, but it was different data type from what i have and since I am new user to this software, I could not fix the problem easily.
> I would be very glad if anyone can help me in the control file creation for the two sample data I attached here? 
> Just as information about the attached data, 
> - The file with name "precipitation_365_day.nc" is the original nc file with 365 day, in which i did not change anything and as i obtained from the source.
> - In the second file with name "precipitation_adjusted_365_day_19560101-19651231.nc", it is a merged file from two nc file with different time step with 366 days. Then i have adjusted the day to be 365 since that was my interest for the time series to be. 
> Thank you very much for your help in advance.
>>  GrADS_example_netcdf_ploting.rar
> ​​​
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