摘要:Understanding the complex paleoenvironmental
processes associated with the
rapid centennial- to millennial-scale Dansgaard-
Oeschger (DO) oscillations and
Heinrich (H) events during the last glacial
period is a major issue in paleoclimate
research. These dramatic changes have
been documented in ice-core, marine and
terrestrial records, but large dating uncertainties
prevent detailed, time-synchronous
correlations between land, ocean
and ice core archives. These correlations
are necessary if the roles played by the
diff erent parts of Earth’s environmental
system are to be understood. The ESF
EuroCores Project on EuroClimate RESOLuTION
is addressing these issues by linking
high-resolution, multi-proxy marine,
terrestrial and ice-core records through
detailed geochronology and time-synchronous
tephra horizons (Fig. 1). Moreover,
it explores the impact of abrupt climatic
changes on Paleolithic populations
in Europe and performs transient simulations
with a coupled atmosphere-oceanvegetation
model to simulate realistic DO
stadial-interstadial changes. The overall
aim of RESOLuTION is to propose a scenario
that can explain the diff erent timing
and impact of DO climate variability on
the Atlantic Ocean and adjacent European
regions, thus signifi cantly contributing to
the debate on mechanisms underlying
sub-orbital climate variability.