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<div>Grads Users,</div>
<div><br>
</div>
<div>I got the following message when doing</div>
<div>xdfopen uwnd_3d_day_79_08.ctl</div>
<div><br>
</div>
<div>
<div>ga-> xdfopen uwnd_3d_day_79_08.ctl</div>
<div>Scanning Descriptor File: uwnd_3d_day_79_08.ctl</div>
<div>gadxdf error: Missing or invalid dimension size.</div>
<div> --> The invalid description file record is: </div>
<div> --> xdef 144 linear 0.0 2.5</div>
<div> The data file was not opened.</div>
</div>
<div><br>
</div>
<div>The descriptor file uwnd_3d_day_79_08.ctl is copied below:</div>
<div><br>
</div>
<div>
<div>dset ^uwnd.%y4.nc</div>
<div>dtype netcdf</div>
<div>title 3-D NCEP-DOE uwnd 1jan1979 to 31dec2008</div>
<div>undef -1.e+34</div>
<div>xdef 144 linear 0.0 2.5</div>
<div>ydef 73 linear 90.0 -2.5</div>
<div>zdef 17 levels 1000 925 850 700 600 500 400 300 250 200 150 100 70 50 30 20 10</div>
<div>tdef 10958 linear 00z01jan1979 24hr</div>
<div>vars 1</div>
<div>uwnd 17 t,z,y,x m/s</div>
<div>Endvars</div>
</div>
<div><br>
</div>
<div>The data files are in the current directory:</div>
<div>uwnd.1979.nc</div>
<div>uwnd.1980.nc</div>
<div>…</div>
<div>When I do ncdump uwnd.1979.nc , I got:</div>
<div>
<div>netcdf uwnd.1979 {</div>
<div>dimensions:</div>
<div><span class="Apple-tab-span" style="white-space:pre"></span>lon = 144 ;</div>
<div><span class="Apple-tab-span" style="white-space:pre"></span>lat = 73 ;</div>
<div><span class="Apple-tab-span" style="white-space:pre"></span>level = 17 ;</div>
<div><span class="Apple-tab-span" style="white-space:pre"></span>time = UNLIMITED ; // (365 currently)</div>
<div><span class="Apple-tab-span" style="white-space:pre"></span>nbnds = 2 ;</div>
<div>variables:</div>
<div><span class="Apple-tab-span" style="white-space:pre"></span>float level(level) ;</div>
<div><span class="Apple-tab-span" style="white-space:pre"></span>level:units = "millibar" ;</div>
<div><span class="Apple-tab-span" style="white-space:pre"></span>level:actual_range = 1000.f, 10.f ;</div>
<div><span class="Apple-tab-span" style="white-space:pre"></span>level:long_name = "Level" ;</div>
<div><span class="Apple-tab-span" style="white-space:pre"></span>level:positive = "down" ;</div>
<div><span class="Apple-tab-span" style="white-space:pre"></span>level:GRIB_id = 100s ;</div>
<div><span class="Apple-tab-span" style="white-space:pre"></span>level:GRIB_name = "hPa" ;</div>
<div><span class="Apple-tab-span" style="white-space:pre"></span>level:axis = "z" ;</div>
<div><span class="Apple-tab-span" style="white-space:pre"></span>level:coordinate_defines = "point" ;</div>
<div><span class="Apple-tab-span" style="white-space:pre"></span>float lat(lat) ;</div>
<div><span class="Apple-tab-span" style="white-space:pre"></span>lat:units = "degrees_north" ;</div>
<div><span class="Apple-tab-span" style="white-space:pre"></span>lat:actual_range = 90.f, -90.f ;</div>
<div><span class="Apple-tab-span" style="white-space:pre"></span>lat:long_name = "Latitude" ;</div>
<div><span class="Apple-tab-span" style="white-space:pre"></span>lat:standard_name = "latitude_north" ;</div>
<div><span class="Apple-tab-span" style="white-space:pre"></span>lat:axis = "y" ;</div>
<div><span class="Apple-tab-span" style="white-space:pre"></span>lat:coordinate_defines = "point" ;</div>
<div><span class="Apple-tab-span" style="white-space:pre"></span>float lon(lon) ;</div>
<div><span class="Apple-tab-span" style="white-space:pre"></span>lon:units = "degrees_east" ;</div>
<div><span class="Apple-tab-span" style="white-space:pre"></span>lon:long_name = "Longitude" ;</div>
<div><span class="Apple-tab-span" style="white-space:pre"></span>lon:actual_range = 0.f, 357.5f ;</div>
<div><span class="Apple-tab-span" style="white-space:pre"></span>lon:standard_name = "longitude_east" ;</div>
<div><span class="Apple-tab-span" style="white-space:pre"></span>lon:axis = "x" ;</div>
<div><span class="Apple-tab-span" style="white-space:pre"></span>lon:coordinate_defines = "point" ;</div>
<div><span class="Apple-tab-span" style="white-space:pre"></span>double time(time) ;</div>
<div><span class="Apple-tab-span" style="white-space:pre"></span>time:units = "hours since 1800-1-1 00:00:0.0" ;</div>
<div><span class="Apple-tab-span" style="white-space:pre"></span>time:long_name = "Time" ;</div>
<div><span class="Apple-tab-span" style="white-space:pre"></span>time:actual_range = 1569072., 1577808. ;</div>
<div><span class="Apple-tab-span" style="white-space:pre"></span>time:delta_t = "0000-00-01 00:00:00" ;</div>
<div><span class="Apple-tab-span" style="white-space:pre"></span>time:standard_name = "time" ;</div>
<div><span class="Apple-tab-span" style="white-space:pre"></span>time:axis = "t" ;</div>
<div><span class="Apple-tab-span" style="white-space:pre"></span>time:coordinate_defines = "start" ;</div>
<div><span class="Apple-tab-span" style="white-space:pre"></span>time:avg_period = "0000-00-01 00:00:00" ;</div>
</div>
<div>…</div>
<div>Could someone give me a clue? </div>
<div><br>
</div>
<div>Thanks!</div>
<div>Joshua</div>
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