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

     Date: Fri, 27 Aug 2004 10:45:13 -0400
     From: Edward Cook <drdendro@ldeo.columbia.edu>
     Subject: Re: how goes it?
     To: Keith Briffa <k.briffa@uea.ac.uk>
     Cc: Edward Cook <drdendro@ldeo.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:  drdendro@ldeo.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/

