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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> 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> wrote: > >> Checksum value and file size. Google should be your friend: >> 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 >>> >>> On Tue, Apr 19, 2016 at 6:49 PM, George Trojan - NOAA Federal < >>> 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> >>>> 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 >>>>> >>>>> 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/ >>>>>>>> >>>>>>>> >>>>>>> >>>>>> >>>>> >>>> >>> >> >
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