Both Luboš and David Stockwell have drawn attention today to the distribution of digits in Hansen’s GISS, suggesting that the distribution is, to borrow an expression, a fingerprint of anthropogenic impact on the calculations. I disagree with both Luboš and David and don’t see anything remarkable in the distribution of digits. I don’t disagree with […]
Lucia has an interesting post on how GISS Model E deals with heat from viscous dissipation here. This is an excellent and technical discussion of a specific modeling issue. It is precisely the sort of discussion that I think is instructive and useful in this field: a specific issue about a specific model. If the […]
Mannian confidence intervals have always been a mystery with MBH99 confidence interval methodology remaining an intractable mystery that has defeated all reverse engineering (and engineering) efforts by UC, Jean S and myself to date (though we haven’t picked up this file for a while.) I was very interested to see how Mann 2008 calculated confidence […]
Most of you are aware of the voting right now for the 2008 Weblog Awards. Anthony is winning handily; Climate Audit is also doing well, running a strong third. (2008 Logo on right leads to vote.) Anthony is a friend of mine and I’m very pleased on his behalf, though, truth be told, I’d be […]
I had a pleasant interview yesterday afternoon with Tom Yulsman of the Center for Environmental Journalism in Colorado. He also posted an article yesterday reporting on an interview with Roger Pielke Jr in which Yulsman described me as a “gadfly”. I don’t know whether this was posted before or after our interview; he didn’t mention […]
It seems a bit mean that Dan Hughes had to post an interesting Unthreaded comment on a year-old thread with nearly 1000 comments.
This post is going to be a bit more interesting than my last one, where I was getting some preliminary information out of the way. The post here draws heavily on Mauri Timonen’s 2009 PPT, which explains how their 7500-year long chronology is obtained. I’m also going to get to some results which will intrigue […]
Over the past 30 years, Finnish dendrochronologists have developed a “supra-long” tree ring chronology now stretching back (Helama et al 2008) to 7600BP, well into the Holocene Optimum. Earlier versions of this chronology have been reported in many articles (e.g. Helama et al 2002, Eronen et al 2002 and references back into the 1990s plus […]
A little progress on this front since my last post on this issue. I received a pleasant note from Glenn McGregor acknowledging the changes to my note, in which he said that he would ask the publisher of IJC, the Royal Meteorological Society, to provide a statement of their data archiving policy. Given that the […]
The old Sodankyla church was built in 1689. Nine cores from beams at this church have been measured and archived. Briffa 2008 used one of 9 cores. Why only one of 9? Your guess is as good as mine.
Climate Audit 