I want to calculate areas using data that are currently in the Polar
Stereographic projection (not an equal-area projection). I was
wondering if ARC/INFO calculates areas using the defined projection or
if the program compensates for the unequal-area projection and
calculates a correct area. Basically, do I have to change to another
projection, such as Lambert Azimuthal, to get correct area output? The
data crosses the 180 degree line and I have a lot of data, so changing
projections would take some extra work I would like to avoid.