Email 3537, Jan 2005, Phil Jones on RealClimate: "The web page is interesting, but whatever you do don't delve too deeply. It will just eat into your time and in the end be completely useless...it is only for those with time on their hands"

Email 3537

date: Fri Jan 28 17:04:11 2005 from: Phil Jones
subject: Re: FW: Crok Story on Hocky Stick - English to: "Folland, Chris" , JOLLIFFE IAN

Chris, Have you seen this web site? [1]http://www.realclimate.org/ Perhaps you should on this issue. Raising and lowering a series (i.e. changing the base period) won't affect the correlation matrix. So all the work CRU has done in this regard is unaffected by this. I also think it shouldn't make much difference to PCs calculated with the covariance matrix. It might change the order of some. This appears to relate to Mike's calculation of PCs using SVD. I'm not good enough at Maths to know why. Mike does answer all this on the above web site. Also the paper they mention coming out in GRL was reviewed by hydrologists. It seems you can specify an editor and if the editor doesn't know the subject they can get it reviewed or send to one who does. The editor here had an agenda. The web page is interesting, but whatever you do don't delve too deeply. It will just eat into your time and in the end be completely useless. Ray Bradley wanted something put there on 2004's temperatures. I gave him the WMO press release from mid-Dec04. Some of the comments on that are ridiculous. It has generated quite a few. The whole web site has got a lot of interest, but it is only for those with time on their hands. Cheers Phil