20020117: dcgrib problem with TMP.2m.daily file

Andy,

Your grib file contains a Gaussian grid.
GEMPAK cannot handle grids where the row spacing is variable.
Eg, the gridpoint spacing in your data varies with latitude.

The dcgrib decoder can interpolate the quasi-thinned grids to
a regular spaced grid so that GEMPAK can handle them, but
there is no provision for Gaussian grids.

Steve Chiswell
Unidata User Support





>From: "Siffert, Andy" <address@hidden>
>Organization: UCAR/Unidata
>Keywords: 200201172304.g0HN4px09623

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>Hello,
>What list would be best to send this question dcgrib question. 
>I'm not sure if I want to become a  member right now, So, is it possible to
>send this question to someone who might be able to help me.
>Thanks,
>Andy 
>
>-----Original Message-----
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>>From: "Siffert, Andy" <address@hidden>
>>Organization: ?
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>Andy,
>
>The email you sent to the gembud list operated by Unidata bounced because
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>>From: "Siffert, Andy" <address@hidden>
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>>Subject:  dcgrib problem with TMP.2m.daily file
>>Date: Thu, 17 Jan 2002 09:32:09 -0800
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>>> Hello,
>>> I'm having problems creating a .gem file from the attached file.
>
>The file come from:
>http://sgi62.wwb.noaa.gov:8080/reanlm//test.daily.flux/y1985/
>>> "TMP.2m.daily.b850101.e851231"
>>> I know my dcgrib works,
>>I also know that there is data in there by doing a wgrib.
>>> dcgrib -v -d text.txt PACK  t2m.gem <  TMP.2m.daily.b850101.e851231
>>> 
>>> output from text.txt
>>> Jan 17 00:13:47 dcgrib[25955]: Starting Up
>>> Jan 17 00:13:47 dcgrib[25955]:  projection  4
>>> Jan 17 00:13:47 dcgrib[25955]: can't open file t2m.gem
>>> Jan 17 00:13:47 dcgrib[25955]: Exiting
>>> Jan 17 00:13:47 dcgrib[25955]: 1 WMO msgs, 1 GRIBs decoded, 0 written 
>>> 
>>> I have also tried 
>>> TMP.2m.daily.b850101.e851231
>>> Same error.
>>> 
>>> I'm not sure what to do. I've tried everything I can think of. 
>>> Can anyone help me?
>>> Thanks,
>>> Andy 
>>> 
>>> 
>>> ****************************************
>>>                Andy Siffert                  
>>>         Aquila Weather Desk           
>>>      Research and Development     
>>>   1100 Walnut Street, Suite 3300  
>>>       Kansas City, MO 64106         
>>>              816-527-1247                 
>>>           Fax: 816-527-4247            
>>> http://www.guaranteedweather.com
>>> *****************************************
>
>Tom Yoksas
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>Unidata User Support                                    UCAR Unidata Program
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>(303)497-8644                                                  P.O. Box 3000
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