On Sep 9, 2008, I sent an FOI request to the University of East Anglia, requesting a copy of the MXD data set as provided to Mann et al. Today (Oct 2, 2008), I was notified that they would provide this data and, sure enough the data is now posted (Oct 2, 2008) at http://www.cru.uea.ac.uk/~timo/datapages/mxdtrw.htm […]
When you’re trading in puts and calls (or derivatives), it’s important to know the sign of the relationship between the value of the derivative and the market. Short positions will go up in value as the market goes down. And, unfortunately, you don’t get to decide afterwards whether you wanted to be short or long. […]
Let’s say that you were a partner of the firm North, Hegerl and Cicerone and charged with issuing an opinion on the financial statements of Team Capital Management Inc.(TCM) And let’s say that you were doing so in heady pre-crash days when markets were going up and mark-to-market accounting was something that the companies wanted […]
The SI for MBH98 listed 34 tree ring series that were not actually used. This was acknowledged in their 2004 Corrigendum which provided the following implausible excuse: These series, all of which come from the International Tree Ring Data Bank (ITRDB), met all the tests used for screening of the ITRDB data used in ref. […]
if Team methodological descriptions were correct? Mann says: All ITRDB tree-ring proxy series were required to pass a series of minimum standards to be included in the network: (i) series must cover at least the interval 1750 to 1970, (ii) correlation between individual cores for a given site must be 0.50 for this period, (iii) […]
Many of the good folks who write the papers and keep the databases seem not to use their naked eyeballs. By that I mean, they seriously think that you can invent some new procedure, and then apply it across the board to transform a group of a thousand datasets without looking at each and every […]
While we were in Italy this summer, my wife and I did the usual tourist things in Rome, visiting the Roman Colliseum and Forum and the Vatican. I noticed something at St Peter’s which is reported first here at Climate Audit.
It’s Sunday and I was just watching the sports reports while surfing financial crises. A trivia question only for people who do not know the answer and PROMISE to simply guess. The answer is easy if you know it and equally easy to find if you research it, so please don’t spoil the guesses. What […]
Both in climate blog world and the financial world, there has been much talk recently about the interaction of models and data distributions. Linear regression models assume normal distributions. What happens to models when the data distributions don’t meet the assumptions. Sometimes it doesn’t matter much, sometimes it does. But it seems like an important […]
On previous occasions, we’ve noticed some strange appearances of the Mann hockey stick under different disguises. In Inconvenient Truth, a splice of Mann’s hockey stick and CRU instrumental data is described as “Dr Thompson’s thermometer”. Today, I noticed another peculiar incident, where Esper and Frank (Clim Chg 2008), who one would think would know better, […]
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