creating a new file
Wajeeha Shafeeq
wajeeha.shafeeq at GCISC.ORG.PK
Thu Nov 30 05:26:47 EST 2006
Hi,
I am using MM5 output data. I have to write a file on some particular lat/lon. For this I am using the following script.
#####################################################
'open mmoutjan05-3-01.ctl'
'set lon 70 80'
'set lat 32 38'
'set gxout fwrite'
'set fwrite humidity.dat'
t=1
while(t<=40)
'set t 't
'd const(t,-9999,-u)'
t=t+1
endwhile
'disable fwrite'
reinit
####################################################
The ctl is as follows:
#####################################################
dset ^humidity.dat
byteswapped
title MM5 data
undef -9999.
pdef 102 102 lcc 26.83 66.62 1.00 1.00 30.00 60.00 73.00 12000. 12000.
xdef 163 linear 70 0.0541
ydef 105 linear 32 0.0541
zdef 23 levels
0.99500
0.98500
0.97000
0.94500
0.91000
0.87000
0.82500
0.77500
0.72500
0.67500
0.62500
0.57500
0.52500
0.47500
0.42500
0.37500
0.32500
0.27500
0.22500
0.17500
0.12500
0.07500
0.02500
tdef 40 linear 06:00Z01JAN2005 360MN
vars 1
rh 23 99 rel humidity (%)
endvars
###########################################################
The problem is when I open the new file and displays its variable it give the following error
"Contouring: nan to nan interval inf"
I have made this ctl file by changing the xdef and ydef values of the original MM5 ctl file.
Regards,
Wajeeha Shafeeq
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