<div dir="ltr">
        
        
        
        <style type="text/css">
        <!--
                @page { margin: 0.79in }
                P { margin-bottom: 0.08in }
        -->
        </style>
<p style="margin-bottom:0in">Working with station data, it so
happens that there is very little information in the documentation on
what format the data should be in for plotting in grads. As a result
I have been working on trial and error to get what form, in
particular;</p>
<p style="margin-bottom:0in">1) delta (the pressure change) should
be</p>
<ol start="2"><li><p style="margin-bottom:0in">the cloudiness (apparently there
        should be two values, one for the station circle and one for the
        cloudiness</p>
</li></ol>
<p style="margin-bottom:0in">HI attach my bogus data listed for each
station as u, v, T, Td, slp, delta, cl, cld, wx, vis (in that order)
and the resultant plots generated with the command d u;v;t;d;p;delta;c;cl;wx;vis.</p><p style="margin-bottom:0in"> 6001 29.25 -1.50 1 -5.0 -3.8 27.9 11.3 921.7 357 6 21 60 80<br> 6002 28.92 -2.47 1 5.0 -2.5 28.8 13.3 930.7 422 7 23 45 65<br>
6003 29.25 -1.67 1 -3.4 -4.4 25.1 09.8 920.4 455 5 22 57 66<br> 6004 29.57 -2.48 1 -4.3 -6.2 26.4 10.1 932.4 022 5 20 63 70<br> 6005 30.50 -2.15 1 -6.1 -2.4 31.1 14.2 903.2 344 5 25 60 66<br>
6006 30.05 -1.60 1 -7.0 -1.8 27.3 11.8 920.9 150 5 20 80 66<br> 6007 29.55 -1.58 1 -2.1 -5.4 24.4 9.4 928.4 222 5 24 95 60<br> 6008 29.02 -2.68 1 -4.0 -5.1 32.1 14.3 910.3 355 5 25 69 66<br>
6009 29.60 -1.50 1 -1.1 -7.4 23.1 13.8 920.4 400 5 25 61 06<br> 6010 29.72 -2.18 1 -5.3 -5.4 22.2 10.2 920.4 999 5 25 60 46<br> 6011 29.42 -2.07 1 -3.2 -5.5 30.1 14.8 922.6 822 5 25 62 56<br>
6012 30.03 -1.95 1 -3.2 -5.5 30.1 14.8 922.6 555 5 25 62 56<br> 6013 30.45 -1.81 1 -6.2 -5.3 21.2 10.2 920.4 634 5 25 66 55<br>"../data/stndat22.dat" 14 lines, 1236 characters<br>
<br></p>
<p style="margin-bottom:0in">Help will be appreciated to clarify
these issues.</p>
</div>