Sunday, June 17, 2012

5237.txt

cc: Fortunat Joos <joosatXYZxyzmate.unibe.ch>, Jonathan Overpeck <jtoatXYZxyzrizona.edu>, Stefan Rahmstorf <rahmstorfatXYZxyzan-klima.de>, Anders Levermann <levermannatXYZxyz-potsdam.de>, Eva Bauer <eva.baueratXYZxyz-potsdam.de>, Gian-Kasper Plattner <plattneratXYZxyzmate.unibe.ch>, Eystein Jansen <eystein.jansenatXYZxyz.uib.no>, Keith Briffa <k.briffaatXYZxyz.ac.uk>
date: Thu, 9 Feb 2006 15:01:05 -0700
from: Jonathan Overpeck <jtoatXYZxyzrizona.edu>
subject: Re: EMIC millennium runs
to: Tim Osborn <t.osbornatXYZxyz.ac.uk>

<x-flowed>
Hi Tim and gang - Tim, the fig panel looks good
to me. I would think seriously about adding an
instrumental line (e.g., same as chap 3 mean NH)
- can this be done w/ your choice of ref period?
Not the end of the world if we leave it off, in
my opinion.

EVERYONE - please send feedback on any issues
straight to Tim - his goal is to finalize this
figure this week.

Tim and Keith - think tables for descriptions of
all the curves/refs instead of captions. Either
way is space-consuming, but the table approach
will be less messy.

Nice job - really like the way we're handling the obs data now.

best, peck



>Dear all,
>
>I've attached a copy of the figure that I've
>drawn from the Bern2.5cc and Climber2 data that
>I was sent (thank you Eva and Kasper for the
>data).
>
>This isn't necessarily the final version of the
>figure - I have to talk some more with Keith
>about it, and of course with Peck and Eystein
>too. But I thought I'd circulate this version
>now to get your views/feedback.
>
>Some information about the diagram:
>
>This is labelled as panel (d) because it will
>probably be added to an existing diagram that
>showed forcings and NH temperatures from
>published model simulations.
>
>The coloured lines show the model results as
>indicated in the legend. I have simply labelled
>them with the model name, an abbreviation for
>the solar forcing (WLS or Bard25) and an
>indication of whether only natural (Nat) or all
>(All) forcings were included. I can change the
>labelling to suit everyone. You will also see
>that I haven't included the "Bard08" forcing,
>because this gave almost identical results to
>"WLS" forcing. All series have been 30-year
>smoothed.
>
>The grey shading is our current way of
>presenting the evidence from proxy-based
>reconstructions of NH temperature (or part of
>the NH in some cases). The darker the grey, the
>more reconstructions overlap that point. We
>haven't included any information from
>instrumental temperatures, and thus the 20th
>century grey band is relatively wide because
>even in the 20th century it is based upon the
>uncertainty in the proxy reconstructions.
>
>Finally, note that everything is expressed as
>anomalies from a pre-20th century reference
>period (1500-1899) to be consistent with the
>other panels of this figure. This reference
>period is used for the grey shading of the
>reconstructions as well as the model
>simulations. It shows the divergence of the All
>and Nat simulations in the 19th and 20th
>centuries nicely.
>
>Best regards
>
>Tim
>
>Attachment converted: Macintosh HD:emics1.pdf (PDF /�IC�) (00112361)
>Dr Timothy J Osborn
>Climatic Research Unit
>School of Environmental Sciences, University of East Anglia
>Norwich NR4 7TJ, UK
>
>e-mail: t.osbornatXYZxyz.ac.uk
>phone: +44 1603 592089
>fax: +44 1603 507784
>web: http://www.cru.uea.ac.uk/~timo/
>sunclock: http://www.cru.uea.ac.uk/~timo/sunclock.htm


--
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
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University of Arizona
Tucson, AZ 85721
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fax: +1 520 792-8795
http://www.geo.arizona.edu/
http://www.ispe.arizona.edu/
</x-flowed>

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