Abstracts
SEARCH Open Science Meeting
October 27, 2003
Seattle, Washington, USA
Variability of Ice and Ocean Fluxes in the Arctic/Sub-Arctic Domain
Michael J. Karcher1, Rüdiger Gerdes2, Frank Kauker3, Cornelia Koeberle4, Ursula Schauer5
1Climate System, Alfred Wegener Institute for Polar and Marine Research, Postfach 12 01 61, Bremerhaven, D 27515, Germany, Phone 49-471-4831-182, Fax 49-471-4831-179, mkarcher@awi-bremerhaven.de
2Climate System, Alfred Wegener Institute for Polar and Marine , Postfach 12 01 61, Bremerhaven, 27515, Germany, Phone 49-471-4831-182, Fax 49-471-4831-179, rgerdes@awi-bremerhaven.de
3Climate System, Alfred Wegener Institute for Polar and Marine , Postfach 12 01 61, Bremerhaven, 27515, Germany, Phone 49-471-4831-182, Fax 49-471-4831-179, fkauker@awi-bremerhaven.de
4Climate System, Alfred Wegener Institute for Polar and Marine , Postfach 12 01 61, Bremerhaven, 27515, Germany, Phone 49-471-4831-182, Fax 49-471-4831-179, ckoeberl@awi-bremerhaven.de
5Climate System, Alfred Wegener Institute for Polar and Marine , Postfach 12 01 61, Bremerhaven, 27515, Germany, Phone 49-471-4831-182, Fax 49-471-4831-179, uschauer@awi-bremerhaven.de
Observations and results of coupled ice-ocean models reveal a large variability of fluxes exchanging heat, freshwater and volume in between the Arctic/Sub-Arctic basins and with the North Atlantic Ocean.
The comparison of several decades of model simulations with long time series of hydrographic measurements at key locations and with satellite observations give some confidence in the model derived cause/effect relationships.
We will give an overview over some of the recent findings with respect to the evolution and spreading of heat and salt anomalies entering or leaving the Nordic Seas and the Arctic Ocean from more than five decades of coupled ice-ocean model simulations. We will also address the dominant modes of simulated and observed ice cover variability. Both phenomena are influenced by local and far-field forcing and interact with each other.
The resulting effects on water formation and the dense water outflow from local to Arctic/Sub-Arctic basin scale will be discussed.
Abstract Categories: Changes in the Sea
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