I was reading through a piece over at the American Thinker where Bruce Thompson takes a run at trying to describe why the computer climate models are pretty bad. And while I’ll admit to not really following all his points concerning modeling and the math, there was a graphic which just blew me away. It was a plotting, world wide, of all the temperature substations available to the modelers and from which they took the temperatures from which they claimed a “global” phenomenon was taking place.
Remember, these are the same people that continue to claim the Medeival Warm Period was a “regional” event.
Take a look at this map of the 7008 weather stations from which the data was taken prepared by Dr. Roy Spencer:
As you can see, the Southern Hemisphere is essentially ignored. Thompson says:
Note that for practical purposes the continents of South America, Africa, Australia and Antarctica are missing. And we haven’t even touched on the 70% of the earth’s surface covered by oceans.
Forget the fact that they only used about 6,000 of them and futher culled that down to 1,200. The lower right quadrant of that map, fully one quarter of the world, has 15 reporting stations by my count (there are some light yellow spots which are hard to see on the map I’ve copied). Forget that their models are crummy and the programming stinks.
Simple question: How do you claim something is a “global” phenomenon when your data essentially ignores 50% of the world, 70% of the oceans of the world and both poles?