Since we missed a few weeks on this feature while climategate roiled, I’m treating readers to a double feature this week.
This QOTW is from our friends at NASA GISS, who never excel in their quest to provided enlightenment and insightful windows into the way they work via recently FOIA’d emails from NASA GISS.
This one came from one of those emails, and centers around the Y2K error discovered in the Detroit Lakes data via the surfacestations survey done there and the controversy that surrounded a peculiar jump in the data.
“Hide this after Jim checks it”
Head on over to Climate Audit and read this gem by Steve McIntyre.
This is what I wrote on July 26th, 2007 about it in:
This picture, taken by www.surfacestations.org volunteer Don Kostuch is the Detroit Lakes, MN USHCN climate station of record. The Stevenson Screen is sinking into the swamp and the MMTS sensor is kept at a comfortable temperature thanks to the nearby A/C units.
The complete set of pictures is here
From NASA’s GISS, the plot makes it pretty easy to see there was no discernible multi-decadal temperature trend until the A/C units were installed. And it’s not hard to figure out when that was.
And as you know, that curious jump in the GISS record, even though it coincided with the placement of the a/c heat exchangers (I checked with the chief engineer of the radio station and he pulled the invoices to check), it turns out that wasn’t the most important issue.
Who says pictures don’t matter? In this case a single photo started an entire chain of events.