When I do 'wgrib ruc2anl_130_20090605_2200_000.grb,' I get,
'1:0:d=09060522:HGT:kpds5=7:kpds6=100:kpds7=1000:TR=1:P1=0:P2=0:TimeU=1:1000
mb:anl:NAve=0,' and that is the only output. I am not sure exactly how to
read that output and if that indicates that there is only one field.
I got the length of the .grb file as only 228074 bytes: -rwxr-xr-x 1
mserino 30490 228074 Apr 7 17:39 ruc2anl_130_20090605_2200_000.grb
Michelle M. Serino
M.S. Candidate
Texas A&M University
Atmospheric Sciences Dept.
Eller O&M, Suite 1017
College Station, TX 77843
(484) 769-0949
On Tue, Apr 19, 2016 at 6:00 PM, George Trojan - NOAA Federal <
george.trojan@xxxxxxxx> wrote:
> Does wgrib list only one field? I just ran convert on the same file. There
> should be 317 data fields. What is the length of .grb file? I got 65403248
> bytes.
>
> George
>
> On Tue, Apr 19, 2016 at 9:31 PM, Michelle Serino <mmserino@xxxxxxxx>
> wrote:
>
>> Thank you everyone for getting back to me.
>>
>> My apologies for not including the location of my data. I downloaded it
>> from http://nomads.ncdc.noaa.gov/data/rucanl/ for the appropriate date
>> and time. Let me respond to everyone's suggestions.
>>
>> 1. When I run:
>>
>> od -c ruc2anl_130_20090605_2200_000.grb | less
>>
>> I get output:
>>
>> 0000000 051107 041111 075003 000752 000000 001034 064407 100202
>>
>> 0000020 062007 164003 003011 013005 000400 000000 000001 000000
>>
>> 0000040 000025 000400 000000 000052 001777 141401 050401 037400
>>
>> 0000060 100631 135354 100410 014163 032000 000351 164464 040000, etc.
>>
>>
>> 2. When I run:
>>
>>
>> wgrib ruc2anl_130_20090605_2200_000.grb
>>
>>
>> I get output:
>>
>>
>> 1:0:d=09060522:HGT:kpds5=7:kpds6=100:kpds7=1000:TR=1:P1=0:P2=0:TimeU=1:1000
>> mb:anl:NAve=0
>>
>> 3. When I run:
>>
>> wgrib -v ruc2anl_130_20090605_2200_000.grb
>>
>>
>> I get similar output:
>>
>>
>> 1:0:D=2009060522:HGT:1000 mb:kpds=7,100,1000:anl:winds in grid
>> direction:"Geopotential height [gpm]
>>
>> 4. George, you mentioned that "It is possible that the program does not
>> know about GRIB2 fields, specific to the office that created the file." By
>> program, are you referring to the program I am using to process these
>> data? Or are you referring to another program? I am not able to test the
>> wgrib2 command at the moment because I do not have the permissions to
>> install it (my advisor will have to do that).
>>
>>
>> It appears that wgrib at least recognizes the *.grb file. Are the lists
>> of the grids as they should be? Perhaps something small is getting lost in
>> the conversion process that my processing code (using Warning Decision
>> Support System - Integrated Information algorithms) cannot reconcile?
>>
>>
>> Thank you for the continued help!
>>
>> Michelle
>>
>> Michelle M. Serino
>> M.S. Candidate
>> Texas A&M University
>> Atmospheric Sciences Dept.
>> Eller O&M, Suite 1017
>> College Station, TX 77843
>> (484) 769-0949
>>
>> On Mon, Apr 18, 2016 at 1:52 AM, Michael Dross <mdross@xxxxxxxxxxxxxxxxxx
>> > wrote:
>>
>>> If you have wgrib installed do a
>>>
>>> wgrib -v ruc2anl_130_20090605_2200_000.grb
>>>
>>>
>>> If it converted it correctly you should get a listing of the grids. If
>>> not, something is amiss with the cnvgrib you have.
>>>
>>> - Mike
>>>
>>>
>>> Sent from my iPad
>>>
>>> On Apr 17, 2016, at 9:11 PM, Michelle Serino <mmserino@xxxxxxxx> wrote:
>>>
>>> Hi all,
>>>
>>> I am using NCAR's cnvgrib utility to convert grib2 RUC-Analysis data to
>>> grib1. An example of one of these data files is below:
>>>
>>> ruc2anl_130_20090605_2200_000.grb2
>>>
>>> When I run the command,
>>>
>>> cnvgrib
>>> -g21 ruc2anl_130_20090605_2200_000.grb2 ruc2anl_130_20090605_2200_000.grb
>>>
>>> the converting process seems to work. I get a file with an extension of
>>> "grb." However, while the file type is listed as a data file, it appears
>>> green, as an executable file. In addition, the code I am using does not
>>> recognize the file as a grb1 file. (The code only recognizes grb1 files.)
>>> The website to which I referred to use this utility (
>>> http://blog.nssl.noaa.gov/wdssii/) did not list any additional options
>>> to use besides the required '-g21.' Am I missing something? This is my
>>> first implementation of the cnvgrib utility, so I apologize if I have made
>>> a naive mistake. I appreciate any help.
>>>
>>> Best regards,
>>>
>>> Michelle Serino
>>>
>>> Michelle M. Serino
>>> M.S. Candidate
>>> Texas A&M University
>>> Atmospheric Sciences Dept.
>>> Eller O&M, Suite 1017
>>> College Station, TX 77843
>>> (484) 769-0949
>>>
>>> _______________________________________________
>>> ldm-users mailing list
>>> ldm-users@xxxxxxxxxxxxxxxx
>>> For list information or to unsubscribe, visit:
>>> http://www.unidata.ucar.edu/mailing_lists/
>>>
>>>
>>
>
