Sunday, April 8, 2012


cc: <>,<>,<>, <>,<>,<>, "'Thorsten Kiefer'" <>, <>
date: Wed, 11 Jul 2007 13:19:42 +0100
from: Phil Jones <>
subject: Re: PAGES/CLIVAR Intersection
to: Keith Briffa <>,<>, <>,"'Eystein Jansen'" <>


Thanks for the update on future plans for the PAGES/CLIVAR intersection.
Work on the paper is coming along slowly. I just need contributions
from Keith and Tim here and Caspar at NCAR. I'm away July 16-28,
so I hope that the final contributions will arrive whilst I'm away, just like
Swiss trains - always on time!

I've reminded Keith and Tim, so remember Swiss timing Caspar!



At 09:10 11/07/2007, Keith Briffa wrote:
>Hi Heinz
>I am in agreement with your outline - I would
>like to stress my own bias that PAGES (and the
>rest of us) need to be pursuing the issue of
>model validation (or specific process validation
>if you prefer) . There is much to be done on the
>area of exploring how models simulate the
>climate variability (and the nature of the
>association with forcings) that we reconstruct
>from the palaeodata. Many people, scientists
>among them, believe that the issue of global
>warming has nothing to gain from palaeolcimate
>studies and they are wrong. Issues such as the
>climate sensitivity of models versus the real
>world and the roles of specific forcings and
>their influence on the future, represent
>important foci for continued study. I would like
>to see this area of work and collaboration
>between palaeoclimatologists and climate (and
>ecological) modelers as an explicit priority of future work.
> At 14:41 09/07/2007, Heinz Wanner wrote:
>>Dear Gavin, dear Eystein,
>>PAGES has actually to formulate its new
>>implementation plan. This gave us the
>>opportunity also to discuss our engagement
>>within the PAGES/CLIVAR Intersection part.
>>Beside the publication of a basic
>>methodological paper (coordinated by Phil) the
>>decision of the Wengen meeting was (as far as I know):
>>a) to organize a methodological workshop in
>>Trieste (June 2008, mainly organized by Kim Cobb and Sandy Tudhope);
>>b) to start the so-called PAGES/CLIVAR
>>Reconstruction Challenge with three working
>>groups: Modelling, pseudoproxies and reconstructions.
>>In addition, Focus 2 of the new PAGES
>>implementation plan intends to continue (or to
>>start) to reconstruct the climate of the last 2
>>ka with a very high resolution (continental,
>>seasonal). If possible, the three important
>>state parameters temperature, precipitation and
>>air pressure should be reconstructed. Some
>>groups already started with this work: Europe,
>>North and South America. New initiatives will
>>likely be taken by teams from Asia/China, Australia and the Arctic.
>>The question is now how we can coordinate these
>>activities. Our suggestion is to organize two
>>well coordinated meetings in 2008 and 2009:
>>- Workshops by the three working groups of the
>>PAGES/CLIVAR Reconstruction Challenge, followed
>>by the methodological PAGES/CLIVAR workshop in Trieste (June 2008).
>>PAGES Open Science Meeting in the U.S.: Special
>>session on the actual results of PAGES, Focus
>>2: Regional reconstructions. The different
>>modules of this workshop should be organized by
>>the leaders of the different regional teams,
>>such as Luterbacher, Briffa and Esper for
>>Europe, Ammann and Wahl for North America, or
>>Villalba and Grosjean for South America.
>>1. Can I ask Kim and Sandy to answer whether
>>they have already made plans for Trieste. The
>>PAGES office offers to help to organize this meeting.
>>2. Caspar, can you send out the official text
>>of the PAGES/CLIVAR Reconstruction Challenge
>>immediately. This text could form the basis for
>>the definitive formation of the three working
>>groups (and for the nomination of the group
>>leaders � normally a difficult task!).
>>3. I will personally help to plan the session
>>of the U.S. Open Science session on regional reconstructions in 2009.
>>The PAGES SSC meets soon in Australia. I will
>>not attend this meeting, but Thorsten Kiefer
>>will present the above mentioned ideas there.
>>We ask all recipients of this mail to comment
>>this concept and to send us our ideas or propositions.
>>With very bets regards, Heinz
>>Dr. Heinz Wanner
>>Prof., Director NCCR Climate
>>Office Institute of Geography:
>>Hallerstrasse 12, CH-3012 Bern (Switzerland)
>>Phone +41 (0)31 631 88 85 / Secr.: 88 59
>>Mail: <>
>>Office NCCR Climate:
>>Erlachstrasse 9a, CH-3012 Bern (Switzerland)
>>Phone +41 (0)31 631 31 60 / Secr.: 31 45
>>Mail: <>
>Professor Keith Briffa,
>Climatic Research Unit
>University of East Anglia
>Norwich, NR4 7TJ, U.K.
>Phone: +44-1603-593909
>Fax: +44-1603-507784

Prof. Phil Jones
Climatic Research Unit Telephone +44 (0) 1603 592090
School of Environmental Sciences Fax +44 (0) 1603 507784
University of East Anglia
Norwich Email


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