cc: Tim Osborn date: Wed, 09 Feb 2005 10:16:12 -0500 from: "Michael E. Mann" subject: Re: CLIVAR abstract to: Keith Briffa Thanks Keith, Wow--you're echoing my thoughts exactly. I really can't believe Nature published this. The problems seem to jump out at you when you read what they've done. I can only assume that the borehole folks and Von Storch and company pushed this (as reviewers, or otherwise). Heike Langenberg was a von Storch post-doc, but she's always struck me as honest and independent--I'd hate to think otherwise... I'm doing some experiments right now w/ CCSM3 pseudoproxies emulating what they've done as we speak. I'll plan to send these to you guys and Phil, as soon as I've got some results. We could join efforts in a response, or both write separate responses. Whatever you think makes more sense. In any case, I want to show you guys the results and get your thoughts... Thanks again, Mike At 10:07 AM 2/9/2005, Keith Briffa wrote: thanks for this . I have to say that I do not think the Moberg paper advances the Science much. Need to see supplementary information , but my initial thought is that there are real problems with their treatment of the "low frequency data" . We are weighed down with trying to put a large European proposal together , but Tim and I are toying wit the idea of writing a response. I find it a bit irritating that they couch their piece as a specific criticism of the M+J series and virtually ignore the other reconstructions , hence setting up a straw Mann (ha ha) . Problem is that thsi juxtaposition of boreholes ,Echo-G and their series will create a new "state of the art" of (apparently) mutually reinforcing evidence. At 12:49 09/02/2005, you wrote: Hi Keith, Thanks for the clarification. I have seen the zero order draft and have looked over it, though not yet in full detail. On the whole appears quite fair, and balanced, and comprehensive. Very nice job! I still think the borehole discussion is a bit unbalanced. It sounds a lot like Henry Pollock to me. The Gonzalez-Rouco simulation is, as we know, somewhat questionable, and there is no discussion of the GISS simulation by Mann and Schmidt which suggests a likely low-frequency bias. So I'm likely to comment on this in my "official" remarks as a reviewer for the chapter (seems a bit odd that I'm both a contributor and reviewer, but as long as you all don't mind, I don't either). Other than that, I think my comments will probably be minor (you know how rare that is!). I see that the comments are due in early April, so I'll probably wait until it gets close so that I can provide an update on the status of in-review/in-press manuscripts. For example, I'm hoping to work w/ Phil on a sort-of response to Moberg et al, which should be quite clarifying (we can get the same result as them, basically, using the Mann and Jones series and a similar approach to what they did, but I think I can show that the approach does very poorly w/ pseudoproxies). By the way, the Mann et al J. Climate letter on the CCSM Pseudoproxy experiments in now provisionally accepted. Will keep you updated. Thanks again for keeping me updated, and congratulations on a wonderful job w/ the ZOD. Its an improvement on what we had in the TAR for sure, and I really like the fact that it gives justice to the large amount of work that has been done by the community since then... thanks again, mike (At 03:50 AM 2/9/2005, you wrote: Sorry !!!!!!!!!!!!!!!! You can see that I am in "headless chicken mode" - no idea how this message got reworked into my inbox! Have you seen the zero order draft ? Where are we with balancing views? Keith At 16:54 08/02/2005, you wrote: HI Keith, Thanks--this is a very old message. I think we provided this abstract many months ago already. SO, unless I misunderstand, nothing for us to do here, I think?? Mike At 11:33 AM 2/8/05, Keith Briffa wrote: Mike just seen this email - please forward their request again and I will look again cheers Keith At 22:43 12/11/2003, you wrote: Dear Keith, No doubt you got the reminder that the CLIVAR folks want a (400 word) abstract from us by Dec 15th for the June meeting. Did you want to take the first stab at this, then we can iterate back and forth a bit? let me know how you want to proceed w/ this... Thanks, mike ______________________________________________________________ Professor Michael E. Mann Department of Environmental Sciences, Clark Hall University of Virginia Charlottesville, VA 22903 _______________________________________________________________________ e-mail: mann@virginia.edu Phone: (434) 924-7770 FAX: (434) 982-2137 [1]http://www.evsc.virginia.edu/faculty/people/mann.shtml -- Professor Keith Briffa, Climatic Research Unit University of East Anglia Norwich, NR4 7TJ, U.K. Phone: +44-1603-593909 Fax: +44-1603-507784 [2]http://www.cru.uea.ac.uk/cru/people/briffa/ _______________________________________________________________________ Professor Michael E. Mann Department of Environmental Sciences, Clark Hall University of Virginia Charlottesville, VA 22903 _______________________________________________________________________ e-mail: mann@virginia.edu Phone: (434) 924-7770 FAX: (434) 982-2137 [3]http://www.evsc.virginia.edu/faculty/people/mann.shtml -- Professor Keith Briffa, Climatic Research Unit University of East Anglia Norwich, NR4 7TJ, U.K. Phone: +44-1603-593909 Fax: +44-1603-507784 [4]http://www.cru.uea.ac.uk/cru/people/briffa/ ______________________________________________________________ Professor Michael E. Mann Department of Environmental Sciences, Clark Hall University of Virginia Charlottesville, VA 22903 _______________________________________________________________________ e-mail: mann@virginia.edu Phone: (434) 924-7770 FAX: (434) 982-2137 [5]http://www.evsc.virginia.edu/faculty/people/mann.shtml -- Professor Keith Briffa, Climatic Research Unit University of East Anglia Norwich, NR4 7TJ, U.K. Phone: +44-1603-593909 Fax: +44-1603-507784 [6]http://www.cru.uea.ac.uk/cru/people/briffa/ ______________________________________________________________ Professor Michael E. Mann Department of Environmental Sciences, Clark Hall University of Virginia Charlottesville, VA 22903 _______________________________________________________________________ e-mail: mann@virginia.edu Phone: (434) 924-7770 FAX: (434) 982-2137 [7]http://www.evsc.virginia.edu/faculty/people/mann.shtml