That's good. Here's the info for my computer:
CentOS release 6.7 (Final)
LSB_VERSION=base-4.0-amd64:base-4.0-noarch:core-4.0-amd64:core-4.0-noarch:graphics-4.0-amd64:graphics-4.0-noarch:printing-4.0-amd64:printing-4.0-noarch
CentOS release 6.7 (Final)
CentOS release 6.7 (Final)
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 8:41 PM, George Trojan <george.trojan@xxxxxxxx>
wrote:
> So grib2 file looks OK. Something wrong with cnvgrib. As I said before, I
> have had problems with cnvgrib in the past. If I recall correctly it had to
> do with default integer sizes 4 vs 8 bytes. What version of operating
> system are you using?
>
> On 20/04/16 12:11 AM, Michelle Serino wrote:
>
> Sorry about that. On the .grb2 file, I get: 492053148 21637412
> ruc2anl_130_20090605_2200_000.grb2.
>
> Thanks, too, for the cksum info.
>
> 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 7:10 PM, George Trojan - NOAA Federal <
> <george.trojan@xxxxxxxx>george.trojan@xxxxxxxx> wrote:
>
>> By the way, I asked for checksum on the GRIB2 file. We know the converted
>> one is too short.
>>
>> On Tue, Apr 19, 2016 at 11:07 PM, George Trojan - NOAA Federal <
>> <george.trojan@xxxxxxxx>george.trojan@xxxxxxxx> wrote:
>>
>>> Checksum value and file size. Google should be your friend:
>>> <https://en.wikipedia.org/wiki/Cksum>https://en.wikipedia.org/wiki/Cksum
>>>
>>> I did have in the past issues with cnvgrib built on Centos 6 and recent
>>> Fedora's. Before going into this, let's eliminate simple causes.
>>>
>>> On Tue, Apr 19, 2016 at 10:53 PM, Michelle Serino <mmserino@xxxxxxxx>
>>> wrote:
>>>
>>>> I get:
>>>>
>>>> 942363691 228074 ruc2anl_130_20090605_2200_000.grb.
>>>>
>>>>
>>>> What do those numbers represent? I am not familiar with the cksum
>>>> command.
>>>>
>>>> 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 <%28484%29%20769-0949>
>>>>
>>>> On Tue, Apr 19, 2016 at 6:49 PM, George Trojan - NOAA Federal <
>>>> <george.trojan@xxxxxxxx>george.trojan@xxxxxxxx> wrote:
>>>>
>>>>> Either the input file is corrupted, or your version of cnvgrib is bad.
>>>>> Try this to eliminate the first possibility:
>>>>>
>>>>> $ cksum ruc2anl_130_20090605_2200_000.grb2
>>>>> 492053148 21637412 ruc2anl_130_20090605_2200_000.grb2
>>>>>
>>>>> The numbers 492053148 21637412 should be the same.
>>>>>
>>>>>
>>>>> On Tue, Apr 19, 2016 at 10:42 PM, Michelle Serino <
>>>>> <mmserino@xxxxxxxx>mmserino@xxxxxxxx> wrote:
>>>>>
>>>>>> 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 <%28484%29%20769-0949>
>>>>>>
>>>>>> On Tue, Apr 19, 2016 at 6:00 PM, George Trojan - NOAA Federal <
>>>>>> <george.trojan@xxxxxxxx>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>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/>
>>>>>>>> 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 <%28484%29%20769-0949>
>>>>>>>>
>>>>>>>> On Mon, Apr 18, 2016 at 1:52 AM, Michael Dross <
>>>>>>>> <mdross@xxxxxxxxxxxxxxxxxx>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>
>>>>>>>>> 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/>
>>>>>>>>> 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 <%28484%29%20769-0949>
>>>>>>>>>
>>>>>>>>> _______________________________________________
>>>>>>>>> ldm-users mailing list
>>>>>>>>> <ldm-users@xxxxxxxxxxxxxxxx>ldm-users@xxxxxxxxxxxxxxxx
>>>>>>>>> For list information or to unsubscribe, visit:
>>>>>>>>> <http://www.unidata.ucar.edu/mailing_lists/>
>>>>>>>>> http://www.unidata.ucar.edu/mailing_lists/
>>>>>>>>>
>>>>>>>>>
>>>>>>>>
>>>>>>>
>>>>>>
>>>>>
>>>>
>>>
>>
>
>
