NDLI: Effects of variability of sea ice transport through the Fram Strait on the intensity of the Atlantic deep circulation

Content Provider	Springer Nature Link
Author	Komuro, Yoshiki Hasumi, Hiroyasu
Copyright Year	2007
Abstract	Results from an ice-ocean coupled model are used to investigate the impact of long-term variability in sea ice transport at the Fram Strait on the intensity of the Atlantic deep circulation. An increase (or decrease) in sea ice transport through the Fram Strait leads to a stronger (or weaker) deep circulation in the Atlantic. Change in the sea ice transport is accompanied by a salinity anomaly in the surface layer of the Arctic Ocean. Such an anomaly could inversely affect the Atlantic circulation once it reaches deep water formation regions. If the Canadian Archipelago is closed, the anomaly is subsequently transported through the Fram Strait, and counters the initial changes in the Atlantic deep circulation. On the other hand, if the Canadian Archipelago is open, some of the anomaly is transported to the Canadian Archipelago, and the initial change in the Atlantic deep circulation persists. In the Arctic Ocean basin, the time scale and path of the salinity anomalys propagation depends on the large-scale flow at the surface of the Arctic Ocean. Our results suggest that the salinity anomaly transport and its propagation pathway out of the Arctic Ocean are important determinants of the role of sea ice transport variability through the Fram Strait in controlling the intensity of the Atlantic deep circulation.
Starting Page	455
Ending Page	467
Page Count	13
File Format	PDF
ISSN	09307575
Journal	Climate Dynamics
Volume Number	29
Issue Number	5
e-ISSN	14320894
Language	English
Publisher	Springer-Verlag
Publisher Date	2007-04-11
Publisher Place	Berlin, Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Oceanography Meteorology/Climatology Geophysics/Geodesy
Content Type	Text
Resource Type	Article
Subject	Atmospheric Science

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