cc: wg1-ar4-ch06@joss.ucar.edu
date: Wed, 10 May 2006 10:23:18 -0600
from: Jonathan Overpeck <jto@u.arizona.edu>
subject: [Wg1-ar4-ch06] Expert review of IPCC WG1 Chapter 6 Second Order
to: barnola@lgge.obs.ujf-grenoble.fr, bauer@pik-potsdam.de, mac59@columbia.edu, jcole@geo.arizona.edu, drdendro@ldeo.columbia.edu, Elsa.Cortijo@lsce.cnrs-gif.fr, Trond.Dokken@bjerknes.uib.no, fleitman@geo.umass.edu, gzt@loess.llqg.ac.cn, khodri@budu.ldgo.columbia.edu, labeyrie@lsce.cnrs-gif.fr, levermann@pik-potsdam.de, oyvind.lie@bjerknes.uib.no, marie-france.loutre@uclouvain.be, katsumi@umn.edu, monnin@climate.unibe.ch, thompson.4@osu.edu, dmuhs@usgs.gov, raimund@climate.gsfc.nasa.gov, t.osborn@uea.ac.uk, parrenin@ujf-grenoble.fr, hpollack@umich.edu, oyvind.paasche@bjerknes.uib.no, plattner@climate.unibe.ch, stott@usc.edu, spahni@climate.unibe.ch, thompson.3@osu.edu, Claire.waelbroeck@lsce.cnrs-gif.fr, GWILES@wooster.edu, jzachos@emerald.ucsc.edu

<x-flowed>
Dear Contributing Authors (CAs) of Chapter 6 - It is a bit 
embarrassing for us to have waited this long to contact you all as a 
group, but as you can imagine, the whole IPCC process has been a blur.

As you all probably understand, the IPCC process relies heavily on 
the labors of many who are not compensated in any way to help provide 
the best assessment of knowledge regarding climate change. You have 
all been working with one or more Lead Authors of Chapter 6 
Paleoclimate (the first such chapter in IPCC history!), and your 
labors have helped generate what we hope is a strong second order 
draft (SOD) of our chapter. The next draft (TOD) will be the final 
draft and will be published next winter (2007). Thus, we have time to 
make the final product even better than it already is.

MOST important at this point is careful expert review of the SOD. You 
should all of received a formal email invitation (from the IPCC WGI 
Technical Service Unit) to serve as expert reviewers of our chapter 
(and indeed, the entire WGI SOD, if you are so inclined). But, please 
take a close look at our current Chapter 6, and give us feedback 
through the formal process. We especially need your feedback on those 
sections relevant to your specific contributions, but also on the 
entire chapter if you have time. Other chapters with paleo that might 
be of interest are Chapters 1, 2, 4, 5, 7, 8, and 9. Chapters 10 and 
11 draw on paleo in some ways.

Note that the DEADLINE is June 2, and that IPCC deadlines are for 
real (as we've learned the hard way!).

Please note that the chapter is technically still too long - the IPCC 
leadership has been impressed with what we've done, and has given us 
more space than originally allocated, but we don't expect to grow 
further. Indeed, we need to make the chapter even tighter and 
shorter, so any comments on what could be shortened will be 
appreciated. As we all know, there are insights from paleo that are 
worth getting out, but that we chose not to include. We had tough 
choices to make, and hopefully, we have focused on those aspects of 
paleo science that are most relevant to policy makers. Our chapter 
should NOT be viewed as a review, and in this light, we need to focus 
primarily on the recent and most state-of-the-art references, rather 
than the whole chain of papers that led us to this point - only in 
really key areas can we cite the "classic" paper. Also, some 
important issues, such as model evaluation, climate sensitivity and 
climate change detection are supposed to be covered in other chapters 
(8, 9 and 9, respectively). And, all assessment of future change 
should be in chapters 10 and 11.

In the rush (you can't believe how intense the last minute editing 
and formatting are w/ each draft), we left some names off the SOD 
Contributing Author list on the first page of our chapter. For this, 
we are truly sorry. We are also thankful that this isn't the final 
draft, and promise to get it right next time! As best we know from 
our Lead Author (LA) team, all of the Chapter 6 CA's are on the 
attached list, and all got formal invitations to be formal expert 
reviewers. Since our connections with some CAs comes via LAs, we've 
also cc'd this email to LAs to make sure no one is still off the CA 
list.

Of course, if you feel you shouldn't be a CA of Chapter 6, or have 
any other issues, please let us know. Our goal is to have a final 
document that is recognized within our community, and throughout the 
broader climate change community, as accurate and definitive. Again, 
your help is MUCH appreciated. It is great to have you on the Chapter 
6 team.

Don't forget that the DEADLINE for expert review is June 2.

Many thanks,

Eystein Jansen and Jonathan Overpeck
Coordinating Lead Authors, Chapter 6


-- 
Jonathan T. Overpeck
Director, Institute for the Study of Planet Earth
Professor, Department of Geosciences
Professor, Department of Atmospheric Sciences

Mail and Fedex Address:

Institute for the Study of Planet Earth
715 N. Park Ave. 2nd Floor
University of Arizona
Tucson, AZ 85721
direct tel: +1 520 622-9065
fax: +1 520 792-8795
http://www.geo.arizona.edu/
http://www.ispe.arizona.edu/
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Attachment Converted: "c:\eudora\attach\IPCC AR4 WG1 Chapter 6 CLAs.doc"
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