[gradsusr] mercator grid in Grads

[Jennifer Adams]

Then you use YDEF with the  levels option. —Jennifer

On May 15, 2015, at 10:38 AM, Ghansham Sangar <ghanshamsangar at gmail.com> wrote:

> Yes its rectilinear but the spacing in degrees in latitude direction is unequal
> 
> On 15 May 2015 19:25, "Jennifer Adams" <jma at cola.iges.org> wrote:
> Isn’t mercator a rectilinear grid? If not, then I guess you’ll need to create a PDEF file. —Jennifer
> 
> On May 15, 2015, at 9:46 AM, Ghansham Sangar <ghanshamsangar at gmail.com> wrote:
> 
>> No its not the case. Grads 2.1 opens gridded hdf5 files. No issues in that case . My query is about datasets which arr projected in a map projection (mercator in my case).
>> Regards
>> Ghansham
>> 
>> On 15 May 2015 19:12, "Jennifer Adams" <jma at cola.iges.org> wrote:
>> The sdfopen command will open some netcdf files, including netcdf4 (which are hdf5 in disguise), but not hdf5. —Jennifer
>> 
>> 
>> On May 15, 2015, at 9:26 AM, Ghansham Sangar <ghanshamsangar at gmail.com> wrote:
>> 
>>> Its a cf complaint hdf5 file...
>>> 
>>> On 15 May 2015 18:14, "Jennifer Adams" <jma at cola.iges.org> wrote:
>>> You’ll need to create a descriptor file for that data format. Please see the documentation at http://iges.org/grads/gadoc/SDFdescriptorfile.html
>>> The dtype ‘hdf5_grid’ should work. The tool h5dump (it is part of the hdf5 library) is useful for seeing all the metadata in your file.
>>> —Jennifer
>>> 
>>> On May 14, 2015, at 1:15 AM, Ghansham Sangar <ghanshamsangar at gmail.com> wrote:
>>> 
>>>> Sorry I want to display in grads
>>>> 
>>>> On Thu, May 14, 2015 at 10:45 AM, Ghansham Sangar <ghanshamsangar at gmail.com> wrote:
>>>> R/Sir
>>>> 
>>>> I have a mercator grid in cf complaint hdf5.
>>>> How to display it with ncl.
>>>> 
>>>> regards
>>>> 
>>>> _______________________________________________
>>>> gradsusr mailing list
>>>> gradsusr at gradsusr.org
>>>> http://gradsusr.org/mailman/listinfo/gradsusr
>>> 
>>> --
>>> Jennifer M. Adams
>>> Center for Ocean-Land-Atmosphere Studies (COLA)
>>> 111 Research Hall, Mail Stop 2B3
>>> George Mason University
>>> 4400 University Drive
>>> Fairfax, VA 22030 
>>> 
>>> 
>>> 
>>> 
>>> 
>>> 
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>> 
>> --
>> Jennifer M. Adams
>> Center for Ocean-Land-Atmosphere Studies (COLA)
>> 111 Research Hall, Mail Stop 2B3
>> George Mason University
>> 4400 University Drive
>> Fairfax, VA 22030 
>> 
>> 
>> 
>> 
>> 
>> 
>> _______________________________________________
>> gradsusr mailing list
>> gradsusr at gradsusr.org
>> http://gradsusr.org/mailman/listinfo/gradsusr
>> 
>> _______________________________________________
>> gradsusr mailing list
>> gradsusr at gradsusr.org
>> http://gradsusr.org/mailman/listinfo/gradsusr
> 
> --
> Jennifer M. Adams
> Center for Ocean-Land-Atmosphere Studies (COLA)
> 111 Research Hall, Mail Stop 2B3
> George Mason University
> 4400 University Drive
> Fairfax, VA 22030 
> 
> 
> 
> 
> 
> 
> _______________________________________________
> gradsusr mailing list
> gradsusr at gradsusr.org
> http://gradsusr.org/mailman/listinfo/gradsusr
> 
> _______________________________________________
> gradsusr mailing list
> gradsusr at gradsusr.org
> http://gradsusr.org/mailman/listinfo/gradsusr

--
Jennifer M. Adams
Center for Ocean-Land-Atmosphere Studies (COLA)
111 Research Hall, Mail Stop 2B3
George Mason University
4400 University Drive
Fairfax, VA 22030 





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