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Transport of Warm Upper Circumpolar Deep Water Onto the Western Antarctic Peninsula Continental Shelf : Volume 8, Issue 4 (10/07/2012)

By Martinson, D. G.

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Book Id: WPLBN0004020586
Format Type: PDF Article :
File Size: Pages 10
Reproduction Date: 2015

Title: Transport of Warm Upper Circumpolar Deep Water Onto the Western Antarctic Peninsula Continental Shelf : Volume 8, Issue 4 (10/07/2012)  
Author: Martinson, D. G.
Volume: Vol. 8, Issue 4
Language: English
Subject: Science, Ocean, Science
Collections: Periodicals: Journal and Magazine Collection (Contemporary), Copernicus GmbH
Publication Date:
Publisher: Copernicus Gmbh, Göttingen, Germany
Member Page: Copernicus Publications


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Mckee, D. C., & Martinson, D. G. (2012). Transport of Warm Upper Circumpolar Deep Water Onto the Western Antarctic Peninsula Continental Shelf : Volume 8, Issue 4 (10/07/2012). Retrieved from

Description: Division of Ocean and Climate Physics, Lamont-Doherty Earth Observatory of Columbia University, 61 Route 9W, Palisades, NY 10964, USA. Five thermistor moorings were placed on the continental shelf of the western Antarctic Peninsula (between 2007 and 2010) in an effort to identify the mechanism(s) responsible for delivering warm Upper Circumpolar Deep Water (UCDW) onto the broad continental shelf from the Antarctic Circumpolar Current (ACC) flowing over the adjacent continental slope. Historically, four mechanisms have been suggested: (1) eddies shed from the ACC, (2) flow into the cross-shelf-cutting canyons with overflow onto the nominal shelf, (3) general upwelling, and (4) episodic advective diversions of the ACC onto the shelf. The mooring array showed that for the years of deployment, the dominant mechanism is eddies; upwelling may also contribute but to an unknown extent. Mechanism 2 played no role, though the canyons have been shown previously to channel UCDW across the shelf into Marguerite Bay. Mechanism 4 played no role independently, though eddies may be advected within a greater intrusion of the background flow.

Transport of warm Upper Circumpolar Deep Water onto the western Antarctic Peninsula continental shelf

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