gfs grib data

[Wesley Ebisuzaki]

Lee,

       To convert from grib2 to grib1, try using the program "cnvgrib"
written by Steve Gilbert of NCEP/NOAA.  "wgrib2" doesn't have
the ability to write grib1 files.

             Wesley Ebisuzaki

All,

    Grib2 files are much smaller than grib1 files.  Downloading grib2
and converting them to grib1 can be faster than downloading grib1 files.

              Wesley


Lee Byerle wrote:
> Elizabeth,
>
> Try the wgrib2 utility to convert to grib edition 1:
>
> http://www.cpc.ncep.noaa.gov/products/wesley/wgrib2/
>
> e.g. wgrib2 -g21 grib2filename -o converted_grib1_file.out
>
> This converts the grib2 to grib1 and grib1 format can be used with GrADS.
>
> Lee
>
>
> On Tue, 29 Aug 2006, Sen Chiao wrote:
>
>> Elizabeth,
>>
>> GrADS can't do grib2 format file. gfs.t12z.pgrb2fxx is grib2 format.
>>
>> SC
>>
>> On 8/29/06, Elizabeth Austin <ecarter at weatherextreme.com> wrote:
>>> Hello all,
>>>
>>> I am trying to plot current gfs grib data with grads. I am pulling from
>>> the site:
>>> ftpprd.ncep.noaa.gov/pub/data/nccf/com/gfs/prod
>>>
>>> I have tried the gfs.t12z.pgrb2fxx files
>>> also the
>>> gfs.t12z.pgrbfxx files
>>>
>>> when I run the grib2ctl command I get the message that the files are
>>> not
>>> grib format...any suggestions?
>>> Thanks,
>>> Elizabeth Austin
>>>
>>> _______________________________________
>>> Elizabeth J. Austin, Ph.D., C.C.M.
>>> President
>>>
>>> WeatherExtreme Ltd.
>>> Physical: 305 Cedar Drive, Stateline, NV 89449
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>>>
>>> elizabeth at weatherextreme.com
>>> www.weatherextreme.com
>>> ______________________________________
>>>
>>