date: Thu, 13 Aug 1998 17:08:04 +0100 ()
from: Andy Baker <A.BakeratXYZxyzter.ac.uk>
subject: stalagmite and tree ring high resolution holocene palaeoclimate
You may remember that we met and spoke some years ago at
the NERC Town Meeting on Palaeoclimate, where I was
advocating the posibilities of high resolution stalagmite
records from luminescence variations. You expressed some
interest at the time in doing some collaborative work. Of
course that was about 4 years ago now!
I am now nearing the end of a 2 year NERC funded project to
investigate the potential of stalagmite luminescence
laminations as a palaeoclimate proxy. We have at present a
1000 year continuous annual record from NW Scotland, which
demonstrates good correlations with both historical
climate data and other expected longer term trends (e.g
double Little Ice Age). We are hoping to get an extension
to extend this record back to 4000 years (we have three
triplicate stals, but not the man-time!).
Would you be interested in some joint work. For our
1000 year record, annual stalagmite growth rate seems to be
a complex proxy of T/Pptn (based on calibration against
the historical record) and is the weakest of our proxies.
Winter band structure gives a good record of winter
storminess and is much clearer as a proxy.
Do you have / know of any tree ring records that could be
useful? Our stals are from Inchnadamph, Assynt, NW
Scotland (nearest met. station - Stornoway). Given the
uniqueness of the regions rainfall record compared to the
rest of the UK/Ireland, and the fact that we seem to be
getting a winter rainfall signal, suggests (at least to me
as a non-expert) that comparison to tree-ring records from
outside the region may not be too useful. But if you have
records from the region, then we may be able to construct a
better palaeoclimate proxy using the two records together??
Please let me know if you would be interested in pursuing
ps If replying after 1.9.98, I will be at Newcastle
University, so please mail me there. Should be something
obvious - try andy.bakeratXYZxyz.ac.uk or firstname.lastname@example.org
pps have greatly enjoyed your recent publications, and
would value any offprints if you have spares.
University of Exeter