cc: ckfolland@meto.gov.uk, tkarl@ncdc.noaa.gov
date: Sat, 11 Sep 1999 19:35:35 -0400
from: "Michael E. Mann" <mann@multiproxy.evsc.virginia.edu>
subject: IPCC revisions
to: p.jones@uea.ac.uk, k.briffa@uea.ac.uk

Dear Phil and Keith,

I wanted to get your feedback on an important suggested revision of
the original (0th draft) version of TAR chapter 2. 

We received some criticism in the initial review of the mixing of the truly
"multiproxy" reconstructions (e.g., Jones et al and Mann et al) with e.g.
dendro-only reconstructions (e.g. Briffa et al) in the current figure which
compares Northern Hemisphere trends that we show in the chapter.

We would like to show just the Mann et al (1999) and Jones et al (1998)
reconstructions, along w/ the instrumental record, in the "multiproxy"
section of the report, leaving discussions of reconstructions based
on specific proxy types to the earlier proxy-specific sections (e.g.,
the dendro section) and  to the general section "Was there a little 
Ice Age and a Medieval Warm Period" which seeks to bring all of the
different pieces of evidence together.

I should report that there was fairly strong support among all of the
lead authors present for taking this action.  But given the key
role you both have in this area, I was hoping to confirm with both
of you that there would be no objection to this.

Please let me know what you think as soon as you have the chance.
See you both in Venice?

best,
mike
_______________________________________________________________________
                    Professor Michael E. Mann
           Department of Environmental Sciences, Clark Hall
                      University of Virginia
                     Charlottesville, VA 22903
_______________________________________________________________________
e-mail: mann@virginia.edu   Phone: (804) 924-7770   FAX: (804) 982-2137
         http://www.evsc.virginia.edu/faculty/people/mann.html