cc: Susan Solomon <ssolomon@al.noaa.gov>, Martin.Manning@noaa.gov, Matilde Rusticucci <mati@at.fcen.uba.ar>, Phil Jones <p.jones@uea.ac.uk>, Peter Lemke <plemke@awi-bremerhaven.de>, Jurgen Willebrand <jwillebrand@ifm-geomar.de>, Nathan Bindoff <n.bindoff@utas.edu.au>, zhenlin chen <cdccc@cma.gov.cn>, Melinda Marquis <Marquis@ucar.edu>
date: Tue, 09 Jan 2007 08:54:58 -0700
from: Kevin Trenberth <trenbert@ucar.edu>
subject: Re: IPCC WG1 Observations Conference Call
to: Brian Hoskins <b.j.hoskins@reading.ac.uk>

   Hi Brian
   Do you need the first part?  Are you rewriting the headline on SPM p 5 lines 35-37 or are
   you adding an extra bullet on circulation?
   I thought we agreed on the latter, but your piece seems more like the former.
   If we left the headline alone and added:
     * Changes in large-scale atmospheric circulation are apparent and, in particular,  the
       mid-latitude westerly winds have shifted polewards and strengthened, altering storm
       tracks.

   would be an alternative approach.  I think it is helpful to mention storm tracks but not be
   specific about how they have changed.
   What do you think?
   Kevin
   Brian Hoskins wrote:

   Susan
   Headline 2
   I suggest the following:
   At  continental or ocean basin scale, numerous changes in climate have been observed.
   Mid-latitude westerly winds (and the associated storms) have shifted polewards and
   strengthened. Other climate changes include precipitation,.....
   I have taken the suggestion form SPM_327 to reverse the order of the first sentence.
   The westerly winds sentence is essentially that in a headline in the TS.
   I should much prefer not to include the bracketed itallicised phrase on storms. The
   evidence is less strong. There is some evidence for reduced numbers of storms also but no
   room to say that. It was not headlined in the chapter or the TS.
   Best wishes
   Brian
--
****************
Kevin E. Trenberth                  e-mail: [1]trenbert@ucar.edu
Climate Analysis Section,           [2]www.cgd.ucar.edu/cas/trenbert.html
NCAR
P. O. Box 3000,                     (303) 497 1318
Boulder, CO 80307                   (303) 497 1333 (fax)

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