Hansen et al 1988 noted very sensibly that there were radically different approaches to some physical problems in GCMs and looked forward to the “real world laboratory in the 1990s” providing empirical information on these conundrums. One such conundrum were temperatures offshore Antarctica. They noted that their model showed a strong warming trend in sea […]
I happened across a NOAA internal training manual a couple of weeks ago that contained a photo of a USHCN official climate station that I thought I’d never get a photo of. The Baltimore Customs House. Baltimore USHCN station circa 1990’s photo courtesy NOAA, click for more images What is interesting about this station, is […]
On January 16, 2008, I posted a note on Hansen et al 1988 containing the following graphic comparing the three Hansen scenarios to the most recent GISS and RSS temperature versions. . Although there had been much furore in the past about the differences between Hansen Scenarios A and B in previous controversy, I observed […]
Craig Loehle has responded to various criticisms and issued a correction here, which he asked me to note. He states that: the original and correction are pasted together. It has data, urls, a map, proper confidence intervals and hypothesis tests, and corrections to dating issues Gavin found He states that “the shape of the curve […]
This is a somewhat restated version of an earlier post seeking to understand the differences between Hansen Scenarios A and B. Rather than trying to clarify matters here, Gavin Schmidt posted over at Tim Lambert’s. In this morning’s post, I correctly identified that the difference between Scenarios A and B for periods up to the […]
Roger Pielke Jr reports that he has posted up a comparison of Hansen, IPCC, and observed trends 1990-2007 here: http://sciencepolicy.colorado.edu/prometheus/archives/climate_change/001330temperature_trends_1.html and suggested that I start a thread (done!).
In 2006, Willis Eschenbach digitized Hansen A,B and C scenarios to 2005 (see here ). I used these values together with my own visual digitization extension to 2010 in my recent post. Subsequently Lucia drew my attention to a digital version of the NASA data placed online at realclimate here , referenced in a realclimate […]
I’m making some changes to this post in light of comments from Gavin Schmift.
Update (Jul 28, 2008): On Jan 18, 2008, two days after this article was posted, RSS issued a revised version of their data set. The graphics below are based on RSS versions as of Jan 16, 2008, the date of this article, and, contrary to some allegations on the internet, I did not “erroneously” use […]
Excellent post by Pielke Jr here
Climate Audit 