With the recent announcement from NCDC that June 2009 – second warmest on record globally I thought it might be interesting to go back and look at some of the older NCDC announcements.
Many commenters have questioned how NCDC arrives at some of the temperature anomalies on this NCDC graph:
Here is what NCDC says in their official announcement.
As an aid to investigation and understanding, I have compiled all such NCDC global temperature anomaly maps that I could find and made them into a flipbook animation. NCDC only made this map style back to May 2007, and I’ve captured every month up to June 2009.
You’ll be able to watch it after clicking through, please be patient, it is a 1.4 MB file and will take bit to load.
For those that like a slower animation, click the image and a larger one at the original resolution (not scaled for blog width) will pop up with 4 seconds between frames.
I’m beginning to think that tracking anomalies may not be providing a complete picture.