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<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>***********************************************