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Simulation of Climatic Changes in the Arctic and North Atlantic During Recent DecadesThe interactions of the atmosphere and ice-ocean system in the Arctic will be studied using a coupled ice-ocean model which will also use ice drift derived from microwave observations as forcing. We especially search for linkages between the recent large climatic shifts in the Arctic Ocean and atmosphere for which period we also have microwave sea ice data. The coupled model area covers the whole N. Atlantic thus interactions between the lower latitudes are also investigated because we anticipate that the same large scale atmospheric patterns which dominate the midlatitudes extend their influence on the Arctic. The model hindcast for 1951-1993 shows clear decadal variability in the leading modes of ocean circulation. No specific low-freq modes are expected for the ice drift because its spectrum is white. However, the ice drift exhibits two see-saw patterns in response to the leading atmospheric circulation mode ('Arctic Oscillation'), one of them is the well-known out of phase relationship between Baffin Bay and Barents-Kara Seas, the other one is between Siberian shelf and Alaskan Coast (Hakkinen and Geiger, 2000).
Document ID
20010089248
Acquisition Source
Goddard Space Flight Center
Document Type
Conference Paper
Authors
Hakkinen, Sirpa
(NASA Goddard Space Flight Center Greenbelt, MD United States)
Koblinsky, Chester J.
Date Acquired
August 20, 2013
Publication Date
January 30, 2001
Subject Category
Environment Pollution
Meeting Information
Meeting: Modern Polar Symposium
Location: Bad Durkheim
Country: Germany
Start Date: June 23, 2001
End Date: June 27, 2001
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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