[gradsusr] GRIB2 All Undefined Values

[Wesley Ebisuzaki - NOAA Federal]

Charles,

   It worked for me.

      g2ctl gfs.t12z.mastergrb2f12 >junk.ctl
                 (I see that you did this)
      gribmap -i junk.ctl
                 (do not use -0)

     grads
      Landscape mode? ('n' for portrait): (entered return)
      ga-> open junk.ctl
      ga-> d hgt200mb

Hint:  use gribmap -v -i junk.ctl to see which fields match the ctl file.

     Wesley



On Mon, Nov 18, 2013 at 4:33 PM, Charles <cl012685 at gmail.com> wrote:

> Hello All,
>
> I am a fairly new user of GrADS. My setup includes: GrADS 2.0.2 on Fedora
> 19, g2ctl 0.0.8.8 and wgrib2 v1.9.9.
>
> I am having issues with all GRIB2 files. I have followed instructions and
> I can successfully create control files and index files, but GrADS returns
> "all undefined values" no matter what I try to plot. I have been getting
> around this by converting the files to GRIB1 and using grib2ctl, which I
> have had no trouble with. However, I would like to eliminate that step. I
> was wondering if anyone could shed some light on what I am missing?
>
> In case it is an issue with the control file, I have pasted one below from
> today's 12Z GFS 0.5x0.5 degree from NOMADS.
>
> dset ^gfs.t12z.mastergrb2f12
> index ^gfs.t12z.mastergrb2f12.idx
> undef 9.999E+20
> title gfs.t12z.mastergrb2f12
> * produced by g2ctl v0.0.8.8
> * command line options: gfs.t12z.mastergrb2f12
> * griddef=1:0:(720 x 361):grid_template=0:winds(N/S): lat-lon grid:(720 x
> 361) units 1e-06 input WE:NS output WE:SN res 48 lat 90.000000 to
> -90.000000 by 0.500000 lon 0.000000 to 359.500000 by 0.500000
> #points=259920:winds(N/S)
>
> dtype grib2
> ydef 361 linear -90.000000 0.5
> xdef 720 linear 0.000000 0.500000
> tdef 1 linear 00Z19nov2013 1mo
> * PROFILE hPa
> zdef 2 levels 50000 20000
> options pascals
> vars 6
> HGT200mb   0,100,20000   0,3,5 ** 200 mb Geopotential Height [gpm]
> HGT500mb   0,100,50000   0,3,5 ** 500 mb Geopotential Height [gpm]
> UGRD200mb   0,100,20000   0,2,2 ** 200 mb U-Component of Wind [m/s]
> UGRD500mb   0,100,50000   0,2,2 ** 500 mb U-Component of Wind [m/s]
> VGRD200mb   0,100,20000   0,2,3 ** 200 mb V-Component of Wind [m/s]
> VGRD500mb   0,100,50000   0,2,3 ** 500 mb V-Component of Wind [m/s]
> ENDVARS
>
> I have been researching this issue for quite some time and haven't found a
> solution yet, so any help is greatly appreciated!
>
> Charles
> University of Oklahoma
>
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>
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