MarGate
A COSYNA Under Water Research Area off Helgoland in the North Sea
sponsored by: HC Hagemann Real Estate GmbH
The new Underwater Coastal Observatories
in the North Sea and the Arctic
- a comparative research approach A transinstitutional collaboration between the AWI, HZG and the companies 4H-Jena, Loth engeneering in
the framework of COSYNA (Coastal Observation System of the Northern and Artic Seas).
P. Fischer (AWI), F. Schröder (HZG), M. Grunwald (HZG), R. Loth (Loth engeneering), J. Klaus Stöhner (Loth engeneering), Micha
Boer (4H Jena), T. Böhme (4H-Jena).F. Baschek (HZG), M. Brand (AWI), C. Walcher (AWI)
With respect to climate change, the North Sea and the Arctic ocean
are the most affected ecosystems on the Northern hemisphere.
Continuously (1Hz) and year round
measured
traits:
Temperature,
salinity, turbidity, oxygen, Chl-A,
current, turbulences, sea conditions,
plankton, jellyfish and fish.
The COSYNA AWIPEV
underwater node system at
NyAlesund – Arctic.
Continuously (1Hz) and year round
measured traits: Temperature, salinity,
depth, turbidity, oxygen, Chl-A, current,
turbulences, sea conditions, jellyfish
and fish.
Why high frequency online measurements?
To handle the two main challenges in aquatic sciences!
The Nyquist theorem: Problem of sampling in
proper time scales and to avoid alias correlations
The restricted access to key ecosytems due to
weather conditions: North Sea and Arctic regions
In situ experimental research and monitoring programs in the aquatic environment
with high frequency year round data availability from key environments (North Sea
and Arctic) link underwater sciences and surface restricted large scale assessment
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methods (satellite remote sensing) to an integrated research approach (ACROSS ).
Remote Sensing – Ground-Truth Demo and Test Facilities (ACROSS)
The COSYNA Helgoland
underwater node system in the
North Sea.
By simultaneously assessing changes and shifts in
abiotic and biotic traits in two ecosystems laying on the
same longitudinal range, we are able to discriminate
general from local patterns in ecosystem dynamics and
functioning.
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In a comparative research approach with cabled
underwater observatory technology developped within
COSYNA, we study changes, similarities and
differences in seasonal and long-term dynamics in
abiotic and biotic factors in the North Sea and in the
Arctic environment.