From: Stefan Rahmstorf <rahmstorf@ozean-klima.de>
To: Keith Briffa <k.briffa@uea.ac.uk>
Subject: Re: latest draft of 2000-year section text
Date: Tue, 21 Feb 2006 19:15:54 +0100
Cc:  jto@u.arizona.edu,  eystein.jansen@geo.uib.no,  Fortunat Joos <joos@climate.unibe.ch>, Tim Osborn <t.osborn@uea.ac.uk>,  drind@giss.nasa.gov,  Henry Pollack <hpollack@umich.edu>

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Hi Keith,

will try to look at your text asap. Concerning the issue of the drift in 
the Von Storch run: they now have at least one paper plus one submitted 
comment where they redid their model run without the drift, they call 
this ECHO-G II, the version with drift is now ECHO-G I. I think this 
argues for leaving the ECHO-G I curve out of the graphs, and just having 
one sentence in the text stating this is not shown as it was found to 
drift, and has been superseded. It is an outlier that messes up the 
graph, and if it is known and even acknowledged by its authors that it 
is a model artifact, why show it in IPCC?

Stefan

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