Satellite temperature table 
I see they corrected their data. Thus the inconsistency from 12/07 to 1/08.  A 'heads up' would have been nice.

Version 3.1 Channel TLT - January, 2008

TLT 3.1 corrects a processing inconsistency in TLT 3.0: the production code changed between processing AMSU years 1998-2006 and year 2007. For TLT 3.1, all AMSU data have been reprocessed for full version consistency. The effect on TLT decadal trend was minor.