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Tree-ring evidence of climate change in northern eurasia during the last 2000 years

Objective

To describe the natural variability of climate, both temperature
and precipitation (or precipitation-related) variables, over
various parts of northern Eurasia for periods up to 2000 years
before present.


The emphasis will be on relatively high-resolution (annual or
seasonal) analyses. Instrumental records will be examined but
the principal focus is the collection and exploration of
tree-ring-related evidence to reconstruct local, regional-mean
and large-scale patterns of climate change and to explore
statistical links with various potential forcings such as solar
variability, volcanism and other internally-driven processes such
as the North Atlantic thermohaline circulation.

The overall project will bring together evidence from three major
sub-projects, each with a particular emphasis on a different
tree-ring variable.

A 'northern' project will assemble and analyze a network of
mainly densitometric chronologies in northern Fennoscandia and
Siberia. Through the development of statistical multivate
transfer functions, these largely temperature sensitive data will
yield reconstructions of spatial patterns of temperature
variability for periods ranging from hundreds to thousands of
years across a wide longitudinal range.

A 'central' project will assemble and reprocess existing
ring-width data, mainly on oak (of living, historical and
sub-fossil origin) principally from sites in Great Britain,
Denmark, Germany and Poland. These data will be used to document
changes in the natural variability of temperature and moisture
conditions during the last two millennia.

The third sub-project will undertake a preliminary systematic
investigation of the potential for interpreting stable isotope
composition (carbon and oxygen) in wood cellulose from individual
tree rings. Isotopic measurements will be made on replicate oak
trees at each of two contrasting sites from three west European
regions. This sub-project will be constrained by the length of
available climate records against which these data must be
compared and will concentrate on the last 100 years.

Funding Scheme

CSC - Cost-sharing contracts

Coordinator

UNIVERSITY OF EAST ANGLIA
Address
University Plain
NR4 7TJ Norwich
United Kingdom

Participants (10)

Anglia Polytechnic University
United Kingdom
Address
East Road
CB1 1PT Cambridge
Arkeologisk Museum I Stavanger
Norway
Address

4001 Stavanger
Forschungszentrum Jülich GmbH
Germany
Address
Wilhelm-johnen-straße
52425 Jülich
Georg-August-Universität Göttingen
Germany
Address
Wilhelm-weber Straße 2
37073 Göttingen
Nationalmuseet
Denmark
Address
77,Ny Vestergade
1471 Kobenhavn
Queen's University of Belfast
United Kingdom
Address
Fitzwilliam Street
BT7 1NN Belfast
STOCKHOLM UNIVERSITET
Sweden
Address

10691 Stockholm
Swiss Federal Institute for Forest, Snow and Landscape
Switzerland
Address
111,Zürcherstrasse
8903 Birmensdorf
University of Cambridge
United Kingdom
Address
Free School Lane
CB2 3RS Cambridge
University of Joensuu
Finland
Address
7,Yliopistonkatu
80101 Joensuu