[gradsusr] finding differences between two runs with ctl files having different number of variables

Thu Jan 24 09:37:54 EST 2013

Dear grad users:

           Thanks for your suggestions and help, especially to Amulya and
Jennifer.......The command 'lterp' really helped me a lot at this moment of
hurry!

Best regards
~Jagabandhu
On Thu, Jan 24, 2013 at 9:15 PM, Jagabandhu Panda <jagabandhu at gmail.com>wrote:

> Dear Jennifer and Amulya:
>
>         As Amulya suggested to use lterp command, I was just trying to
> learn how to use that. And just now with this command which Jennifer
> suggested, it looks like working! I think this should serve my purpose
> hopefully..........
>
> Best regards
> ~Jagabandhu
> On Thu, Jan 24, 2013 at 8:29 PM, Jennifer Adams <jma at cola.iges.org> wrote:
>
>> Also, you can try 'd mcape.2-lterp(mcape.1,mcape.2)'. --Jennifer
>>
>>
>> On Jan 24, 2013, at 6:39 AM, Jennifer Adams wrote:
>>
>> Do you get the same message if you do not use define, but just display
>> mcape.2-mcape.1?
>>
>> On Jan 23, 2013, at 10:46 PM, Jagabandhu Panda wrote:
>>
>> Hello Jennifer
>>
>> Version of GrADS: v2.0.a9 (little-endian readline printim grib2 netcdf
>> hdf4-sds hdf5 opendap-grids,stn geotiff shapefile)
>>
>> YDEF for both files are same
>>
>> I am using 'open'
>>
>> The dimension variables and other environments set before executing:
>> --------------------------------------------------
>> ga-> open sing08040112d05nurbhgtah97p5ic.ctl
>> Scanning description file:  sing08040112d05nurbhgtah97p5ic.ctl
>> Data file sing08040112d05nurbhgtah97p5ic.dat is open as file 1
>> LON set to 103.552 104.116
>> LAT set to 1.1876 1.53311
>> LEV set to 0.01 0.01
>> Time values set: 2008:4:1:12 2008:4:1:12
>> E set to 1 1
>> ga-> open sing08040112d05nurbhgtxxl.ctl
>> Scanning description file:  sing08040112d05nurbhgtxxl.ctl
>> Data file sing08040112d05nurbhgtxxl.dat is open as file 2
>> ga-> set dfile 1
>> Default file set to: sing08040112d05nurbhgtah97p5ic.dat
>> ga-> define mcape1=mcape
>> Define memory allocation size = 216720 bytes
>> ga-> set dfile 2
>> Default file set to: sing08040112d05nurbhgtxxl.dat
>> ga-> define mcape2=mcape
>> Define memory allocation size = 216720 bytes
>> ga-> d mcape2-mcape1
>> Operation error:  Incompatable grids
>>   Dimension ranges aren't equivalent
>>   Dimension = 1
>>   1st grid range = 1 129   2nd = 1 129
>>   Error ocurred at column 14
>> DISPLAY error:  Invalid expression
>>   Expression = mcape2-mcape1
>> ----------------------------------------------------------
>> As I mentioned earlier, the number of variables are different in both ctl
>> files because they are output from two different model runs and use
>> different model environments.........
>>
>> Best regards
>> ~Jagabandhu
>>
>> On Wed, Jan 23, 2013 at 10:27 PM, Jennifer Adams <jma at cola.iges.org>wrote:
>>
>>> What version of GrADS are you using?
>>> What does the YDEF statement look like in both descriptors?
>>> Are you using open or xdfopen?
>>> What is the dimension environment set to before you execute your display
>>> of mcape.2-mcape.1?
>>> --Jennifer
>>>
>>>
>>> On Jan 23, 2013, at 5:30 AM, Jagabandhu Panda wrote:
>>>
>>> Dear users:
>>>
>>>      Hope you guys are doing fine. I need your help or suggestions to
>>> overcome a problem. I have WRF output from two model runs with same
>>> horizontal and vertical resolutions. I have two ctl files for this purpose
>>> with corresponding dat files for them. For both of these outputs, I have
>>> xdef, ydef, zdef and tdef same for both the files. However, the number of
>>> variables are different. One contains 166 variables and other 123. Since
>>> the model was tuned to produce more variables in the output file in the
>>> earlier case, the number of variables are more. However, in the later case
>>> it was not tuned to do so. On the other hand, they do produce same
>>> diagnostics after post processing.
>>>
>>> When I want to find the difference between say 2dcape field from these
>>> two runs, I am unable to do so as it says:
>>>
>>> Operation error:  Incompatable grids
>>>   Dimension ranges aren't equivalent
>>>
>>>   Dimension = 1
>>>   1st grid range = 5 117   2nd = 5 117
>>>   Error ocurred at column 16
>>> DISPLAY error:  Invalid expression
>>>   Expression = mcape.2-mcape.1
>>> EXEC error:  error in metvar.sh.  EXEC stopped.
>>> I am unable to point out how to proceed to find the differences each
>>> hour for a meteorological variable from the two runs. Could you please
>>> suggest some way to overcome it if possible. I will really be thankful to
>>> you for this purpose.
>>>
>>> Thanks and regards
>>> -- Jagabandhu
>>>
>>> _______________________________________________
>>> gradsusr mailing list
>>> gradsusr at gradsusr.org
>>> http://gradsusr.org/mailman/listinfo/gradsusr
>>>
>>>
>>>  --
>>> Jennifer M. Adams
>>> IGES/COLA
>>> 4041 Powder Mill Road, Suite 302
>>> Calverton, MD 20705
>>> jma at cola.iges.org
>>>
>>>
>>>
>>>
>>> _______________________________________________
>>> gradsusr mailing list
>>> gradsusr at gradsusr.org
>>> http://gradsusr.org/mailman/listinfo/gradsusr
>>>
>>>
>>
>>
>>
>> _______________________________________________
>> gradsusr mailing list
>> gradsusr at gradsusr.org
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>>
>>
>>  --
>> Jennifer M. Adams
>> IGES/COLA
>> 4041 Powder Mill Road, Suite 302
>> Calverton, MD 20705
>> jma at cola.iges.org
>>
>>
>>
>> _______________________________________________
>> gradsusr mailing list
>> gradsusr at gradsusr.org
>> http://gradsusr.org/mailman/listinfo/gradsusr
>>
>>
>>  --
>> Jennifer M. Adams
>> IGES/COLA
>> 4041 Powder Mill Road, Suite 302
>> Calverton, MD 20705
>> jma at cola.iges.org
>>
>>
>>
>>
>> _______________________________________________
>> gradsusr mailing list
>> gradsusr at gradsusr.org
>> http://gradsusr.org/mailman/listinfo/gradsusr
>>
>>
>
>
> --
> ###########################################################################
> Dr. Jagabandhu Panda, PhD
> School of Physical and Mathematical Sciences
> Nanyang Technological University
> Singapore
> Phone: +65 - 65922565
> Email: jpanda at ntu.edu.sg, jagabandhu at gmail.com
> Personal Web Page: http://jagabandhupanda.wordpress.com/
> Group Home Page:
> http://www1.spms.ntu.edu.sg/~sunshine/WeatherWeb/html/index.html
> ###########################################################################
>

-- 
###########################################################################
Dr. Jagabandhu Panda, PhD
School of Physical and Mathematical Sciences
Nanyang Technological University
Singapore
Phone: +65 - 65922565
Email: jpanda at ntu.edu.sg, jagabandhu at gmail.com
Personal Web Page: http://jagabandhupanda.wordpress.com/
Group Home Page:
http://www1.spms.ntu.edu.sg/~sunshine/WeatherWeb/html/index.html
###########################################################################
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