date: Tue Jun 19 08:55:48 2001 from: Tim Osborn subject: Re: use of neural networks to help reconstruct climatefromtree to: k.briffa@uea >Date: Mon, 18 Jun 2001 12:00:53 -0400 >From: "Jonathan M. Adams" >To: Tim Osborn >Subject: Re: use of neural networks to help reconstruct climatefromtree ring > widths > >Dear Tim, > > You are right, I think there is a very high likelihood that Michael >Mann will be a reviewer on this. I was just on the phone to him a few >days ago in fact. So we should be sure to properly take into account his >work, and put our proposal in that context. > > I know that he is keen on the idea of using neural networks, which I >put to him in our conversation. > > > Jonathan > > > > > > >Tim Osborn wrote: >> >> Dear Jonathan, >> >> I just wanted to make a couple of comments prior to you beginning work on >> the draft proposal. >> >> First, as Keith pointed out, it would be useful from my point of view to >> get something towards my salary. But we're aware, of course, that it might >> prove difficult to justify a large amount to a non-US institution and we >> wouldn't want to ask for so much that it jeopardises the proposal. When we >> have an idea of our contribution then we can make an estimate. >> >> Second, one of the likely reviewers of such a proposal is Mike Mann, at Uni >> Virginia in Charlottesville. The proposal would have to show awareness of >> and complement his previous work on climate reconstruction (e.g. Mann ME, >> Bradley RS, Hughes MK, Global-scale temperature patterns and climate >> forcing over the past six centuries. NATURE 392 (6678): 779-787 APR 23 >> 1998), but you should also be aware that he (in collaboration with us) have >> recently been applying a new reconstruction methodology similar to that >> published recently by Tapio Schneider (Journal of Climate: Vol. 14, No. 5, >> pp. 853–871. Analysis of Incomplete Climate Data: Estimation of Mean Values >> and Covariance Matrices and Imputation of Missing Values. Tapio Schneider). >> These new results are as yet unpublished - and indeed the first drafts are >> still being prepared. We can of course advise you on this and comment on >> the draft proposal, but I thought that you should be aware of this work >> before you began. [The Tapio Schneider paper is rather mathematical and I >> struggled to understand some bits!] >> >> Best regards >> >> Tim >> >> Dr Timothy J Osborn | phone: +44 1603 592089 >> Senior Research Associate | fax: +44 1603 507784 >> Climatic Research Unit | e-mail: t.osborn@uea.ac.uk >> School of Environmental Sciences | web-site: >> University of East Anglia __________| http://www.cru.uea.ac.uk/~timo/ >> Norwich NR4 7TJ | sunclock: >> UK | http://www.cru.uea.ac.uk/~timo/sunclock.htm >