[RegCNET] Grid problem!

[Monica Santese]

Dear users,

I have two different files CHE that come from two different runs with different numbers of pixels:
One for iy=200 and jx = 200    and one for iy=185 and jx = 200.

Now, if I want to plot the aerosol optical depth map of the differences between the AOD from the first run and AOD from the second one using : 
a1=ave(ave(aext8,z=1,z=18)*18,t=1,t=4) and
a2=ave(ave(aext8,z=1,z=18)*18,t=1,t=4)
dif=a1-a2

I have the error message:


Operation error:  Incompatable grids 
  Dimension ranges aren't equivalent
  Dimension = 0
  1st grid range = -15 756   2nd = 1 771 
  Error ocurred at column 6
DEFINE error:  Invalid expression. 


Is there a way to plot the AOD differences for a lat-lon area that are common to the two files CHE?

Thank you fory your help!!


PhD.Monica Santese
CMCC - Physics Department - University of Salento
via Arnesano - 73100 Lecce, Italy
 
e-mail: monica.santese at le.infn.it
phone:  +39-0832-297502 (office)
             +39-0832-297481 (laboratory)
fax:       +39 -0832-297505
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