[gradsusr] displaying 2 variables

[Amina Khan]

Dear Grads users,
I am facing a problem in displaying two variables together, temperature in shades and geopotential height in contours.Please guide me. Detail is given here.Thanks Amina  

file 1 is temperature.nc
LON set to 0 360
LAT set to -90 90LEV set to 0 0Time values set: 2007:4:15:0 2007:4:15:0E set to 1 1
file 2 is hgt.nc
LON set to 0 360
LAT set to -90 90LEV set to 500 500Time values set: 2007:4:15:18 2007:4:15:18E set to 1 1
I used the following commands;sdfopen temperature.ncsdfopen hgt.nc
set gxout shaded
d air(t=1)set gxout contourd hgt.2(t=1)
But this error appears..Data Request Warning:  Request is completely outside file limits  Entire grid contents are set to missing data  Grid limits of file:     X = 1 144  Y = 1 73  Z = 1 1  T = 1 1  E = 1 1  Grid limits of request:  X = 1 144  Y = 1 73  Z = -499 -499  T = 1 1 E = 1 1  Warning issued for variable = hgt.2
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