Changing spatial resolution on data file (from 2 X 2.5 degrees to 2.5 X 2.5 degrees)

[Jason Snyder]

Hi,

I obtained this data file on sulfate aerosols from:

http://gdata1.sci.gsfc.nasa.gov/daac-bin/G3/gui.cgi?instance_id=aerosol_daily

It does not have a defined time value but still displays in GrADS as when I
specify set t 1, I get time 1:1:1:0.

That is not a problem, however, the problem is that I need this data to
have a spatial resolution of 2.5X2.5 to be compatible with other data. It
currently has a spatial resolution of 2X2.5.  How can I change the spatial
resoluton from 2X2.5  to 2.5 X 2.5?

Thanks,

Jason
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