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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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