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<div dir="ltr"><font color="#000000" size="2" face="Tahoma"><a><font color="#000000" size="2" face="Tahoma">Geeta</font></a></font></div>
<div dir="ltr"><font face="tahoma"></font> </div>
<div dir="ltr"><font face="tahoma">Change your TDEF<a></a> number to match the total number of time variations in your data file.</font></div>
<div dir="ltr"><font face="tahoma"></font> </div>
<div dir="ltr"><font face="tahoma">In the example you show only 06, so if you change TDEF<a></a> to 1 it will work.</font></div>
<div dir="ltr"><font face="tahoma"></font> </div>
<div dir="ltr"><font face="tahoma">Go through your data file and find out how many different months you have in the file and change the number 5 on the TDEF<a></a> line to the number of months in your file.</font></div>
<div dir="ltr"><font face="tahoma"></font> </div>
<div dir="ltr"><font face="tahoma">John Huddleston, PhD</font></div>
<div dir="ltr"><font face="tahoma">Cooperative Institute for Research in the Atmosphere</font></div>
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<font color="#000000" size="2" face="Tahoma"><b>From:</b> gradsusr-bounces@gradsusr.org [gradsusr-bounces@gradsusr.org] On Behalf Of Geeta Geeta [geeta124@hotmail.com]<br>
<b>Sent:</b> Monday, October 04, 2010 11:18 PM<br>
<b>To:</b> grads grads<br>
<b>Subject:</b> [gradsusr] Query Reg the Station data plotting and gridding<br>
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<div>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>
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