Saturday, March 17, 2012

2570.txt

date: Fri Aug 27 16:34:23 2004
from: Keith Briffa <k.briffaatXYZxyz.ac.uk>
subject: Fwd: Re: how goes it?
to: t.m.melvinatXYZxyz.ac.uk

Date: Fri, 27 Aug 2004 10:45:13 -0400
From: Edward Cook <drdendroatXYZxyzo.columbia.edu>
Subject: Re: how goes it?
To: Keith Briffa <k.briffaatXYZxyz.ac.uk>
Cc: Edward Cook <drdendroatXYZxyzo.columbia.edu>
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Hi Keith,
Tried ringing you. You were beating your gums first and then no answer. I admit to
working a bit slowly through Tom's voluminous thesis. One question I have. The Best Fit
Means method iterates in a way that provides an "optimal" RCS chronology by one means or
another. In so doing, bootstrap error estimates about the RCS chronology that uses BFM
appear to be artificially tiny. Is it not possible to take the final RCS chronology that
uses BFM and the original tree-ring series, factor out the RCS signal from each of the
original series, and estimate uncertainty from these residual series? Does Tom do this?
If so, I obviously haven't reached that point in the thesis.
Cheers,
Ed
On Aug 26, 2004, at 11:23 AM, Keith Briffa wrote:

Hi Ed
just rang to let you know that I am here tomorrow but then off to Bergen for a week .
Hope all is well with the reading . Best wishes
Keith
--
Professor Keith Briffa,
Climatic Research Unit
University of East Anglia
Norwich, NR4 7TJ, U.K.
Phone: +44-1603-593909
Fax: +44-1603-507784
[1]http://www.cru.uea.ac.uk/cru/people/briffa/

==================================
Dr. Edward R. Cook
Doherty Senior Scholar and
Director, Tree-Ring Laboratory
Lamont-Doherty Earth Observatory
Palisades, New York 10964 USA
Email: drdendroatXYZxyzo.columbia.edu
Phone: 845-365-8618
Fax: 845-365-8152
==================================

--
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/

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