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Dear All,<BR> <BR>I would like to write a script for these aims, could you please lead me. Of course I have written some, but I couldn't get a good result.<BR> <BR>open a file,<BR> <BR>set time in 1<BR> <BR>Read a parameter like T in a special longitude a latitude for example lon=90, lat=35. (T1)<BR> <BR>Then set time to next step, I mean t=t+1<BR> <BR>Read parameter T in another special location, like lon= 75, lat= 20. (T2)<BR> <BR>Then I would like to calculate average of T1 and T2. At the end I want to show the value of the average.<BR> <BR>Could you please help me?<BR> <BR>Regards,<BR> <BR>T.<BR>                                            </div></body>
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