Roy Spencer has posted on the January 2010 UAH LT MSU data (see), and there is also a press release (see). In the presentation from UAH, the analyses are not area weighted. This results in a visual overstatement of the contribution to the anomalies in the higher latitudes.
Tim Channon, however, has completed area averaged maps of this analyses which is reproduced below with his permission [he also has completed such presentations for other temperature analyses which I will post on later].
I have presented both the standard UAH LT MSU presentation (non-area weighted) and Tim Channon’s area-weighted presentation below.
(c) 2010 T Channon
