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  • Extreme high Greenland Blocking Index leads to the reversal of Davis and Nares Strait net transport toward the Arctic Ocean
Title: Extreme high Greenland Blocking Index leads to the reversal of Davis and Nares Strait net transport toward the Arctic Ocean
Baffin Bay exports Arctic Water to the North Atlantic while receiving northward flowing Atlantic Water. Warm Atlantic Water has impacted the retreat of tidewater glaciers draining the Greenland Ice Sheet. Periods of enhanced Atlantic Water transport into Baffin Bay have been observed, but the oceanic processes are still not fully explained. At the end of 2010 the net transport at Davis Strait, the southern gateway to Baffin Bay, reversed from southward to northward for a month, leading to significant northward oceanic heat transport into Baffin Bay. This was associated with an extreme high in the Greenland Blocking Index and a stormtrack path that shifted away from Baffin Bay. Thus fewer cyclones in the Irminger Sea resulted in less frequent northerly winds along the western coast of Greenland, allowing anomalous northward penetration of warm waters, reversing the volume and heat transport at Davis Strait.  more » « less
Award ID(s):
1902595
NSF-PAR ID:
10344912
Author(s) / Creator(s):
; ; ; ; ; ; ; ; ; ;
Date Published:
Journal Name:
Geophysical research letters
Volume:
48
ISSN:
0094-8276
Format(s):
Medium: X
Sponsoring Org:
National Science Foundation
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