Dear Dai,<br> Happy to know that you were successful in plotting station data. Now I can give some hints about oacres. It is a function used for interpolating station data to the gridded binary data using Cressman objective analysis.
<br> For this you have to make a moke or fake ctl file in which the binary data to be obtained by oacres should be specified. Then the station ctl and template (fake) ctl are incorperated using oacres with the command
<br>d oacres(template,station.2), where station is the station ctl <br>I herewith attaches the template file to be used for oacres estimation.<br>Best wishes....<br><br> <br><br><div class="gmail_quote">On Jan 24, 2008 1:57 AM, Qingfang Dai <
<a href="mailto:qdai@math.ualberta.ca">qdai@math.ualberta.ca</a>> wrote:<br><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
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<p><font size="2">Dear Jayakrishnan,</font></p>
<p><font size="2">By using your files, I can plot the station color mark successfully. I am not familar with "oacres" function either. So I have to find the details in the GrADS documentation and try it. If I get the answer, I will let you know ASAP. Thanks for your kind assistance so much.
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<p><font size="2">Best,</font></p>
<p><font size="2">Qingfang</font></p>
<p><font size="2"><b> </b></font></p>
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<p><font size="2"><b>On Wed, 23 Jan 2008 11:43:50 +0530, Jayakrishnan PR wrote</b>
<div><div></div><div class="Wj3C7c"><br>> Dear Dai,
<br>> I have tried with the data you supplied with lat lon and climatological value and was successful in plotting the station plots using grads station data. I herewith attaches the text files, Fortran program, C program, ctl file, gs file and the plot I could get using your data.
<br>> This is the first step to plot the contour I think. To plot the contours you willl have to use the 'oacres' function as suggested by Jerry in the previous mail. Till now I am not familiarised with oacres. If you got the answer kindly let me know. But I know how to use oacres. refer grads documentation for details.
<br>> First you run the climread.f. The output of climread.f is used as the input of c program clim.c. Then the binary output is incorperated with clim.ctl.
<br>> Hope this helps.
<br>> Sincerely
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<br>> --
<br>> ***********************************************
<br>> Jayakrishnan.P.R
<br>> Junior Research Fellow
<br>> Department of Atmospheric Sciences
<br>> Cochin University of Science And Technology (CUSAT), Cochin-16
<br>> Kerala, India.
<br>> Mob: 09895417565
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<br></div></div><div class="Ih2E3d">--
<br>Department of Math and Stat Sciences (<a href="http://www.math.ualberta.ca/" target="_blank">http://www.math.ualberta.ca</a>)
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</blockquote></div><br><br clear="all"><br>-- <br>***********************************************<br>Jayakrishnan.P.R<br>Junior Research Fellow<br>Department of Atmospheric Sciences<br>Cochin University of Science And Technology (CUSAT), Cochin-16
<br>Kerala, India.<br>Mob: 09895417565<br><br>***********************************************