[gradsusr] GRIB2 All Undefined Values

[Charles]

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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