Thursday, April 12, 2012

3325.txt

date: Fri Jan 5 13:31:40 2001
from: Keith Briffa <k.briffaatXYZxyz.ac.uk>
subject: Synthesis
to: "Raymond S. Bradley" <rbradleyatXYZxyz.umass.edu>

Here is the Figure for the N.Atlantic for the last 1000 years as I have it now. From top to
bottom - Central England Temperature ANNUAL
Lutterbacher's NAO DEC-MARCH (largely instrumental
based , including CET anyway)
Van Englen's Dutch Temperature index - turned into a
pseudo annual series)
My Tornetrask Reconstruction SUMMER HALF YEAR
Bianchi and McCave's deepwater flow
Irish bog wetness - dry up
New (Reworked ) Sargasso SST
GISP2 018
GRIP ditto
Fisher's west Greenland Stack
Aggassi ice melt
All normalised over a common period . What do you think? I am tempted to average GRIP and
GISP ? I will phone as I am still uncertain about the Figures.
Keith
At 08:10 AM 1/5/01 -0500, you wrote:

I am working on incorporating a discussion of borehole data into the chapter right now.
It's complicated.....as far as I know, the ice core borehole data are limited --just one
published from GRIP, one from Agassiz (Canadian High Arctic) and an abstract re
"contradictory" (warm LIA/cold MWP) data from Taylor Dome versus another Antarctic
site. Yet the Dahl-Jenssen GRIP curve is impressive, and Pollack (pers. comm.) tells me
that he has terrestrial borehole data -- v. low resolution & limited--that nevertheless
looks much like the GRIP record for the Holocene....I don't think the borehole data are
so easy to dismiss...it requires a detailed site-by-site comparison of proxy v. borehole
as Beltrami has done for limited regions.
To answer your questions, Black's data are at NGDC --poke around there.
I got the NAO maps this a.m.--they need to be in colour.
My Lofoten project was funded and I'll do fieldwork there in August, with Jon Pilcher.
Tim can be a co-author. Yes, get him to work on the trends/detection part asap.
In the text that we now have, I believe the figure comparison (mann et al/Briffa et al
etc) is discussed in the context of the last millennium. So we should revise the fig.,
he sent to cover that period. I'm not averse to also using the one he sent in the
section re past v. future warming. Right now we just use Mann et al. there, but putting
both figs., with the error bars etc as he has done is fine too. But I'd still like to
see the other scaled figure.
I'm here at home:413-253-7058-if further questions
ray
At 11:44 AM 1/5/01 +0000, you wrote:

Ray
In what context are you/we refering to The Dahl -Jensen curve .? I sending you the
working version of the Figure on circum North Atlantic climate variability via Mike
here. I am still undecided about the precise ice core data to show and Hammer has still
not sent the north GRIP record that I really wish to include. I am also hassling others
for data (high res marine record near Norway; Finnish lake core data) . Do you have
Black's data? Tim has sent you the NAO maps that I wish to work into the North Atlantic
bit. What became of your Lofoten project ? I would like to do comparisons
with any data against our tree ring and other records. Also I need your confirmation
that Tim here can be added to the author list . I want to get him to redo the detection
bit with the new data. Also , why did you tell him to cut off the projected temperatures
from that Figure ? I thought that was exactly what we agreed to include - note also the
different rates of warming for the annual land and marine as opposed to summer land .
They are large . If you use the composite Figure of the various reconstructions in your
Senate piece , please get the citation to my JGR paper correct. I am working on our
PAGES paper, plus t=Phil's Science paper and I have to do an EC report, EC proposal and
teaching all this month - so I am awarwe and you honestly don't need to give me more
than the occasional prod. I LEAVE THE OFFICE AT 3.45 my time today , so quick reply
appreciated Best wishes
Keith
--
Dr. Keith Briffa, Climatic Research Unit, University of East Anglia,
Norwich, NR4 7TJ, United Kingdom
Phone: +44-1603-593909 Fax: +44-1603-507784

Raymond S. Bradley
Professor and Head of Department
Department of Geosciences
University of Massachusetts
Amherst, MA 01003-5820
Tel: 413-545-2120
Fax: 413-545-1200
Climate System Research Center: 413-545-0659
Climate System Research Center Web Page:
<[1]http://www.geo.umass.edu/climate/climate.html>
Paleoclimatology Book Web Site (1999): [2]http://www.geo.umass.edu/climate/paleo/html

--
Dr. Keith Briffa, Climatic Research Unit, University of East Anglia,
Norwich, NR4 7TJ, United Kingdom
Phone: +44-1603-593909 Fax: +44-1603-507784

No comments:

Post a Comment