Present-day manifestation of the Nordic Seas Overflows.

Quadfasel, Detlef and Käse, Rolf H. (2007) Present-day manifestation of the Nordic Seas Overflows. In: Ocean Circulation: Mechanisms and Impacts—Past and Future Changes of Meridional Overturning. ; 173 . Geophysical Monograph Series, 173 . AGU (American Geophysical Union), USA, pp. 75-89. ISBN 9780875904382 DOI 10.1029/173GM07.

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Abstract

Dense Nordic waters enter the North Atlantic through passages in the Greenland-Scotland Ridge at a mean rate of 6 Sv. Subsequent entrainment of ambient water into the sinking plumes downstream of the sills approximately double this flux. Decade-long observations show these fluxes to be stable with no discernible
trends. Hydraulic control of the overflows and the buffering effect of the Nordic basins effectively filter out short-term variability of dense water production associated with white noise North Atlantic Oscillation forcing. Simulations with directly forced and coupled atmosphere-ocean models show, under present
climate conditions, overflow variability on multi-decadal time scales but no longterm
trends.

Document Type: Book chapter
Keywords: POS222; POS230; POS244; POSEIDON; Meridional overturning circulation
Refereed: Yes
Open Access Journal?: Yes
Publisher: AGU (American Geophysical Union)
Projects: Enrichment
Expeditions/Models/Experiments:
Date Deposited: 23 Sep 2015 08:13
Last Modified: 29 Apr 2019 08:52
URI: https://oceanrep.geomar.de/id/eprint/29766

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