Archives for November 12, 2008

THERE has been some anecdotal evidence suggesting that last month, October 2008, was unusually cold.  The sophisticated weather-watcher, of course, waits for some official global temperature data to be published before concluding very much. 

Al Gore’s scientific advisor, James Hansen from NASA’s Goddard Institute for Space Studies (GISS), publishes a monthly mean global surface temperature. 

Some dispute the methodology Dr Hansen uses to arrive at his monthly mean values, but nevertheless I have observed that his GISS data is usually somewhere in the vicinity of the data from the Hadley Centre at the UK Meteorology Bureau and the Satellite data compiled at the University of Alabama, Huntsville – though yes Dr Hansen’s data is usually on the warm side.  [Read more…] about Correcting Global Cooling (Part 2)