Integrated Baltic Sea Environmental Study:
Analysis and Simulation of Hydrological and
Ecological Variability in the last 1000 years
Start: August 2001
End: July 2004
Co-ordination: W. Fennel and J.W. Dippner
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Abstract
The central goal of
IBSEN is to contribute to the
climatic reconstruction in the
Baltic Sea
environment for the two strongest climatic signals during the last
1000 years: the Medieval Warm Period
(MWP) (1130-1179 AD) and the Little Ice Age
(LIA) at
the sun spot Maunder Minimum (1670-1710 AD). These periods will be compared to
the last 40 years in the 20th century which cover the 1960s cold period and the
1990s warm period. The applied methods are time slice experiments for the three
periods forced by a 1000 year climate simulation with a model hierarchy from
regional climate models to high resolution circulation and ecosystem models.
The model output will be analysed with statistical models which are linked to
environmental data sets and sediment records. The main objectives are:
The expected results are an improved knowledge of the causes of natural
variability in the Baltic Sea environment which is important for a sustainable
use.
IBSEN is an interdisciplinary joint project in the frame of
DEKLIM funded
by the german ministry of education and research
(BMBF)
which brings
together a complex model hierarchy, statistical analysis tools, environmental
data sets and sediment records. IBSEN fits into the following thematic priorities
of DEKLIM:
All co-ordinators of the proposal cluster sent to priority B of DEKLIM meet
once a year to exchange information about the status and future plans of
their activities. These annual meetings will be coordinated through the
BALTEX
secretariat.
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to link a global model of past atmospheric circulation to an ecosystem model
of the Baltic Sea,