I was wondering if some of the NASA data (Pressure/Temperature/Ozone)
might could be correlated to some "outside forces" (such as weather).

Therefore I plotted some hurricane data (1999 hurricane Lenny, from http://weather.unisys.com)
on the same long/lat map grid as I'm using for the nasa data, and then
plotted the Pressure, Ozone, and Temperature data for the same time
period (mid-November, 1999) in 3 separate charts.

At the resolution of my color-binning (5 bins), no strong visual 
correlation is evident in the Ozone and Temperature maps.
There might be some correlation to the Pressure map.

This is probably to be expected, since the hurricane is a rather
fast-moving phoenomena, and the NASA data is the average value 
for the month.