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Dear All, <br>I need help "Reg the plotting of station Rainfall data from synoptic stations". I need to do the following.<br>1. plot the STATION Rainfall using the Grads and then <br>2. I have to convert into the gridded rainfall using the Grads Oacres function. <br><br>Step 1. As per the direction given in the Grads mannual, I have converted
the Ascii data in the following format into the Binary using the following program (Attatched). <br>Format of Station rainfall<br>2010 06 qqq 34.3 85.5 123.3<br>2010 06 qrq 34.6 82.5 023.3<br>2010 06 qql 34.9 83.5 003.3<br>2010 06 qqm 35.3 84.5 000.3<br>2010 06 qqn 36.3 87.5 155.3<br>This data need to be converted to the format which GrADS understands. This is done by the Program test1.f (attatched). The ascii data is written into binary by this program. <br><br>Step 2. Then I have created the ctl file (stn.ctl) which looks like this.<br>dset ^rain.bin<br>dtype station<br>STNMAP rain.map<br>undef -999.0<br>title rainfall<br>tdef 5 linear 12z18jan1980 12hr<br>vars 1<br>rf 0 99 rainfall<br>endvars<br><br>Step 3. When I try to plot the station data, I get the follwing message. <br>ga-> open stn.ctl<br>Scanning description file: stn.ctl<br>Open Error: Can't open Station/Index map file rain.map<br> --> The invalid description file record is: <br> --> stnmap rain.map <br><br> The data file was not opened. <br>ga-> <br><br><br>So I feel that Unless I cannnot plot the station data properly, I cannot get the GRIDDED RAINFALL also USING the OACRES function. <br>Kindly Suggest how should I get the Gridded Rainfall from the Station data.<br>Thanks<br>geeta<br><br>                                            </body>
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