date: Wed, 25 Apr 2001 14:55:41 -0500
from: tom crowley <tom@ocean.tamu.edu>
subject: Re: Briffa et al reconstruction 2001
to: Tim Osborn <t.osborn@uea.ac.uk>

Dear Tim,

we are in the preliminary stages of comparing our 2d ebm simulations
(April-Sept, >30 N land) with the Briffa et al time series you sent me.  We
simulate a larger early 20th century temp rise than you reconstruct, but
yours is also smaller than the Jones et al observations you illustrate in
your JGR paper.

do you have any idea why you are not reconstructing the full magnitude of
the 20th century rise?  it certainly can not be attributable to low
sensitivity of your index, for it is very "excitable" in the earlier part
of the record.

also can you send me the unsmoothed Jones et al NH land Ap-Sept time series
you used so I can be sure I am using the same observations you are?

Thanks and I look forward to any help on this, Tom



Thomas J.  Crowley
Dept. of Oceanography
Texas A&M University
College Station, TX  77843-3146
979-845-0795
979-847-8879 (fax)
979-845-6331 (alternate fax)