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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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