From: Nathan Bindoff <n.bindoff@utas.edu.au>
To: Susan Solomon <ssolomon@al.noaa.gov>
Subject: Re: IPCC WG1 Observations ppt
Date: Mon, 15 Jan 2007 23:17:30 +1100
Cc: Kevin Trenberth <trenbert@ucar.edu>, Peter Lemke <Peter.Lemke@awi.de>, jwillebrand@ifm-geomar.de, Brian Hoskins <b.j.hoskins@reading.ac.uk>, Martin.Manning@noaa.gov, Matilde Rusticucci <mati@at.fcen.uba.ar>, Phil Jones <p.jones@uea.ac.uk>, zhenlin chen <cdccc@cma.gov.cn>, Melinda Marquis <Marquis@ucar.edu>, Nathan Bindoff <n.bindoff@utas.edu.au>

G'day Folks

Just to pick up on Susan's comment below, that I am interested in, and
perhaps also richard alley in using parts of Peter's presentation for
the sea-level rise issues....

Hope to have a new version by the close of tomorrow.

Cheers Nathan

On Fri, 2007-01-12 at 11:26 -0700, Susan Solomon wrote:
> Dear All,
> Thanks for looking and thinking about this.
> 
> I should clarify that some of what Peter kindly put into his 
> presentation may link to the sea level presentation, so may be better 
> moved there.   We should consider that carefully.  I suspect that 
> Peter was trying to avoid undue emphasis on Larsen B alone - because 
> other places are showing similar things.  So we should evaluate that 
> too.   While none of the figures themselves are explicitly shown in 
> Figure 4 (including the Larsen B one), the material referenced is 
> assessed there and Peter has carefully given the papers - so if we 
> believe this is needed, it could be considered.
> 
> I do like Figure 4.13 but think it would be clearer for this audience 
> if it showed just the volume changes rather than the two panels.   I 
> understand why the technical expert likes both but for this audience 
> perhaps just something showing the changes in glacier volume (SLR) 
> would be clearer.
> 
> bests,
> Susan
> 
> 
> At 9:49 AM -0700 1/12/07, Kevin Trenberth wrote:
> >Hi Peter
> >I am a bit alarmed about all of these slides as being too complex 
> >and not using material from the chapters enough.
> >
> >For instance Fig 4.13 I found easy to understand but your first 
> >slide is not easy: why is Europe in blue going up in a and level in 
> >b when the glaciers are retreating?  The reason is because this 
> >shows the rate of change not the result of the change isn't it?
> >
> >In your second slide I do like the Larsen B ice shelf picture and 
> >that provides a nice back drop for some explanation of the new 
> >bullet (which is good).  But why include the 3 panels on the left? 
> >What do they add?
> >
> >I am not sure the next two are needed especially in their current 
> >form.  None of these are in the chapter.  They add too much new 
> >material.  In my last ppt version I added some place holders taking 
> >some figures from the chapter as they are part of the picture that 
> >"global warming is unequivocal".  I would urge you to include the 
> >first two I had, plus one of yours based on the Larsen B slide but 
> >with the message from the bullet added, or something like that.
> >
> >Regards
> >Kevin
> >
> >
> >
> >
> >Peter Lemke wrote:
> >>Dear Colleagues,
> >>please find enclosed a ppt-file addressing issues of Chapter 4.
> >>Slide 1: addresses SPM-312 and 314. I suggest to accept 312. The 
> >>figure (4.15 from the chapter) indicates an increased rate of 
> >>change after about 1990. But I do not think that we have an 
> >>indication of an acceleration (continuously increasing rate of 
> >>change).
> >>Slides 2,3 and 4: address the increased flow speed of tributary 
> >>glaciers after retreat/thinning/loss of ice shelves or floating 
> >>glacier tongues in Antarctica and Greenland (comments SPM-349 to 
> >>353)
> >>
> >>I did not find any critical comments concerning snow, sea ice and 
> >>frozen ground. Therefore I did not prepare any slides for theses 
> >>topics.
> >>Best regards,
> >>Peter
> >>
> >>**************************************
> >>Please note my new e-mail address:
> >>
> >>Peter.Lemke@awi.de
> >>
> >>**************************************
> >>Prof. Dr. Peter Lemke
> >>Alfred-Wegener-Institute
> >>for Polar and Marine Research
> >>Postfach 120161
> >>27515 Bremerhaven
> >>GERMANY
> >>
> >>e-mail: Peter.Lemke@awi.de
> >>Phone: ++49 (0)471 - 4831 - 1751/1750
> >>FAX:   ++49 (0)471 - 4831 - 1797
> >>http://www.awi.de
> >>**************************************
> >
> >--
> >****************
> >Kevin E. Trenberth                  e-mail: trenbert@ucar.edu
> >Climate Analysis Section,           www.cgd.ucar.edu/cas/trenbert.html
> >NCAR
> >P. O. Box 3000,                     (303) 497 1318
> >Boulder, CO 80307                   (303) 497 1333 (fax)
> >
> >Street address: 1850 Table Mesa Drive, Boulder, CO  80305
> 


