Problems plotting seaice preprojected data (southern hemisphere)

[Christopher Cunningham]

Hi GrADS users,

I am having problems to display the Antartica sea ice concentration made available by the NSIDC. I am using the GrADS for PC, version 1.8SL11, and my control file is like the one below
 
DSET C:\dados\diarios\seaice\nt_19790104_f07_v01_s.bin.grads
PDEF 332 316 pse 90. 0. 173 158 25. 25. -1
UNDEF -1.0E+1
TITLE TEMP
XDEF 360 LINEAR    00.0  1.0
YDEF 180 LINEAR   -90.0  0.5
ZDEF 1 LEVELS 1
TDEF 1 LINEAR 02JAN1979 2dy
VARS 1
si 0 99 Sea Ice Coverage [ % ] 
ENDVARS 

If I use the PDEF above I get the Antartic data plotted in the Northern Hemisphere, even though I used -1 which is the parameter for S polar stereo. In fact to change this parameter has no effect at all. I have also tried several combinations of numbers as arguments for the PDEF statement, but none works to plot the Antartic in the South Pole.

Have someone experienced this kind of difficulty?


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