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Hi. I currently receiving ukmo grib files for upper air temp and winds.
No problem to use the temp files with grads, but when i'm trying to
display winds, it does not work : U field seems to be undefined. Does
someone has an idea about this?<br>
<br>
Regards<br>
<br>
<tt>ga> open HUIG30EGRR131200.ctl<br>
Scanning description file: HUIG30EGRR131200.ctl<br>
Data file HUIG30EGRR131200 is open as file 1<br>
LON set to -30 60 <br>
LAT set to 0 90 <br>
LEV set to 1 1 <br>
Time values set: 2006:7:13:12 2006:7:13:12 <br>
Notice: Implied interpolation for file HUIG30EGRR131200.ctl<br>
Interpolation will be performed on any data displayed from this file<br>
ga> open HVIG30EGRR131200.ctl<br>
Scanning description file: HVIG30EGRR131200.ctl<br>
Data file HVIG30EGRR131200 is open as file 2<br>
Notice: Implied interpolation for file HVIG30EGRR131200.ctl<br>
Interpolation will be performed on any data displayed from this file<br>
ga> q ctlinfo<br>
dset HUIG30EGRR131200<br>
title HUIG30EGRR131200<br>
undef 9.999e+20<br>
xdef 73 linear -30 1.25<br>
ydef 73 linear 0 1.25<br>
zdef 1 linear 1 1<br>
tdef 1 linear 12Z13JUL2006 1mo<br>
vars 1<br>
ugrd300mb 0 33,100,300 ** 300 mb u wind [m/s]<br>
ga> d ugrd300mb.1;vgrd300mb.2<br>
Notice: Automatic Grid Interpolation Taking Place<br>
Cannot draw vectors/barbs -- U field all undefined<br>
ga> <br>
</tt><br>
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<hr><span class="c1"><b>Philippe Le Gall</b></span><br>
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