Friday, May 25, 2012

4728.txt

cc: Phil Jones <p.jonesatXYZxyz.ac.uk>, Tom Crowley <tcrowleyatXYZxyze.edu>, "Michael E. Mann" <mannatXYZxyz.edu>, "raymond s. bradley" <rbradleyatXYZxyz.umass.edu>, Stefan Rahmstorf <rahmstorfatXYZxyzan-klima.de>, Eric Steig <steigatXYZxyz.washington.edu>, gschmidt@giss.nasa.gov, rasmus.benestad@physics.org, garidel@marine.rutgers.edu, David Archer <d-archeratXYZxyzicago.edu>, "Raymond P." <rtp1atXYZxyzsci.uchicago.edu>
date: Thu, 4 Jan 2007 20:41:11 +0000 (GMT)
from: William M Connolley <wmcatXYZxyz.ac.uk>
subject: Re: not so fast - an update
to: Caspar Ammann <ammannatXYZxyzr.edu>

On Thu, 4 Jan 2007, Caspar Ammann wrote:
> check figure A9, there the 17th century is cold, and this is probably
> the curve that was used. In that case, then its Central England from Lamb.

Ah, you mean A9(d) (I thought you meant A9(a) for a bit). Yes, that looks pretty
similar to IPCC 1990. Though not identical - the scaling is different, but the
timing is similar.

-W.

> Caspar
>
>
> William M Connolley wrote:
> > On Thu, 4 Jan 2007, Phil Jones wrote:
> >
> >> The net is closing...
> >>
> >> National Research Council, US Committee for the Global Atmospheric
> >> Research Program, Understanding Climatic Change: A Program for Action,
> >> National Academy of Sciences, Washington, DC, (1975), appendix A.
> >>
> >> This book (Fig A2b) has the same figure as Imbrie/Imbrie. It is rotated.
> >> It also has the same concept of the IPCC 1990 Figure, changes on
> >> various timescales - all rotated. Loads of Lamb diagrams I have
> >> seen countless times before.
> >>
> >
> > ? The source for IPCC can't be the 1975 NAS report. That fig is relatively warm
> > about 1600; the IPCC '90 figure is cold then. And as noted the "MWP" is colder
> > than 1950. But NAS 75 is the same as I+I, true (they both source to Lamb 69).
> >
> > Incidentally my I+I says copyright 1979, seventh printing 1998.
> >
> > -W.
> >
> > William M Connolley | wmcatXYZxyz.ac.uk | http://www.antarctica.ac.uk/met/wmc/
> > Climate Modeller, British Antarctic Survey | (01223) 221479
> >
> > --
> > This message (and any attachments) is for the recipient only. NERC is subject
> > to the Freedom of Information Act 2000 and the contents of this email and any
> > reply you make may be disclosed by NERC unless it is exempt from release under
> > the Act. Any material supplied to NERC may be stored in an electronic
> > records management system.
> >
> >
> >
>
> --
> Caspar M. Ammann
> National Center for Atmospheric Research
> Climate and Global Dynamics Division - Paleoclimatology
> 1850 Table Mesa Drive
> Boulder, CO 80307-3000
> email: ammannatXYZxyzr.edu tel: 303-497-1705 fax: 303-497-1348
>

William M Connolley | wmcatXYZxyz.ac.uk | http://www.antarctica.ac.uk/met/wmc/
Climate Modeller, British Antarctic Survey | (01223) 221479

--
This message (and any attachments) is for the recipient only. NERC is subject
to the Freedom of Information Act 2000 and the contents of this email and any
reply you make may be disclosed by NERC unless it is exempt from release under
the Act. Any material supplied to NERC may be stored in an electronic
records management system.

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