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<p>Hi All,</p>
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<p>I'm currently having an issue with getting GRIB-1 data to be processed in GrADS. I'm using archived 12km NAM data from the NCDC NOMADS Server. I get the "Constant field. Value = 0" error...<br>
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<p>Below is the control file that I've created using grib2ctl:</p>
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<p><span style="font-family: 'Courier New',monospace; font-size: 10pt;">dset /mnt/homes/perrya/jaycasestudy/data/nam/nam12.2014120700.%f3.grb</span><br style="font-family: 'Courier New',monospace; font-size: 10pt;">
<span style="font-family: 'Courier New',monospace; font-size: 10pt;">index /mnt/homes/perrya/jaycasestudy/data/nam/nam12.2014120700.000.grb.idx</span><br style="font-family: 'Courier New',monospace; font-size: 10pt;">
<span style="font-family: 'Courier New',monospace; font-size: 10pt;">undef 9.999E+20</span><br style="font-family: 'Courier New',monospace; font-size: 10pt;">
<span style="font-family: 'Courier New',monospace; font-size: 10pt;">title /mnt/homes/perrya/jaycasestudy/data/nam/nam12.2014120700.000.grb</span><br style="font-family: 'Courier New',monospace; font-size: 10pt;">
<span style="font-family: 'Courier New',monospace; font-size: 10pt;">* produced by grib2ctl v0.9.13</span><br style="font-family: 'Courier New',monospace; font-size: 10pt;">
<span style="font-family: 'Courier New',monospace; font-size: 10pt;">* command line options: -verf /mnt/homes/perrya/jaycasestudy/data/nam/nam12.2014120700.%f3.grb</span><br style="font-family: 'Courier New',monospace; font-size: 10pt;">
<span style="font-family: 'Courier New',monospace; font-size: 10pt;">dtype grib 218</span><br style="font-family: 'Courier New',monospace; font-size: 10pt;">
<span style="font-family: 'Courier New',monospace; font-size: 10pt;">options template</span><br style="font-family: 'Courier New',monospace; font-size: 10pt;">
<span style="font-family: 'Courier New',monospace; font-size: 10pt;">pdef 614 428 lccr 12.190000 -133.459000 1 1 25.000000 25.000000 -95.000000 12191 12191</span><br style="font-family: 'Courier New',monospace; font-size: 10pt;">
<span style="font-family: 'Courier New',monospace; font-size: 10pt;">xdef 614 linear -133.459000 0.113383763365335</span><br style="font-family: 'Courier New',monospace; font-size: 10pt;">
<span style="font-family: 'Courier New',monospace; font-size: 10pt;">ydef 428 linear 12.190000 0.110827272727273</span><br style="font-family: 'Courier New',monospace; font-size: 10pt;">
<span style="font-family: 'Courier New',monospace; font-size: 10pt;">tdef 29 linear 00Z07dec2014 3hr</span><br style="font-family: 'Courier New',monospace; font-size: 10pt;">
<span style="font-family: 'Courier New',monospace; font-size: 10pt;">zdef 1 linear 1 1</span><br style="font-family: 'Courier New',monospace; font-size: 10pt;">
<span style="font-family: 'Courier New',monospace; font-size: 10pt;">vars 5</span><br style="font-family: 'Courier New',monospace; font-size: 10pt;">
<span style="font-family: 'Courier New',monospace; font-size: 10pt;">APCPsfc 0 61,1,0 ** surface Total precipitation [kg/m^2]</span><br style="font-family: 'Courier New',monospace; font-size: 10pt;">
<span style="font-family: 'Courier New',monospace; font-size: 10pt;">PRMSLmsl 0 2,102,0 ** mean-sea level Pressure reduced to MSL [Pa]</span><br style="font-family: 'Courier New',monospace; font-size: 10pt;">
<span style="font-family: 'Courier New',monospace; font-size: 10pt;">TMP2m 0 11,105,2 ** 2 m above ground Temp. [K]</span><br style="font-family: 'Courier New',monospace; font-size: 10pt;">
<span style="font-family: 'Courier New',monospace; font-size: 10pt;">UGRD10m 0 33,105,10 ** 10 m above ground u wind [m/s]</span><br style="font-family: 'Courier New',monospace; font-size: 10pt;">
<span style="font-family: 'Courier New',monospace; font-size: 10pt;">VGRD10m 0 34,105,10 ** 10 m above ground v wind [m/s]</span><br style="font-family: 'Courier New',monospace; font-size: 10pt;">
<span style="font-family: 'Courier New',monospace; font-size: 10pt;">ENDVARS</span><br>
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<p><br>
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<p>What am I doing wrong?<br>
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<span style="color:rgb(0,111,201)"></span></font><font style="color:rgb(0,111,201)"><span style="color:rgb(0,111,201)">Dept. of Atmospheric Sciences</span><br>
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