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Malvinas-slope Water Intrusions on the Northern Patagonia Continental Shelf : Volume 6, Issue 1 (08/03/2010)

By Piola, A. R.

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Book Id: WPLBN0004020442
Format Type: PDF Article :
File Size: Pages 15
Reproduction Date: 2015

Title: Malvinas-slope Water Intrusions on the Northern Patagonia Continental Shelf : Volume 6, Issue 1 (08/03/2010)  
Author: Piola, A. R.
Volume: Vol. 6, Issue 1
Language: English
Subject: Science, Ocean, Science
Collections: Periodicals: Journal and Magazine Collection (Contemporary), Copernicus GmbH
Historic
Publication Date:
2010
Publisher: Copernicus Gmbh, Göttingen, Germany
Member Page: Copernicus Publications

Citation

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Guerrero, R. A., Palma, E. D., Jardón, F. P., Romero, S. I., Avellaneda, N. M., & Piola, A. R. (2010). Malvinas-slope Water Intrusions on the Northern Patagonia Continental Shelf : Volume 6, Issue 1 (08/03/2010). Retrieved from http://www.worldlibrary.net/


Description
Description: Departamento Oceanografía, Servicio de Hidrografía Naval, Buenos Aires, Argentina. The Patagonia continental shelf located off southeastern South America is bounded offshore by the Malvinas Current, which extends northward from northern Drake Passage (~55° S) to nearly 38° S. The transition between relatively warm-fresh shelf waters and Subantarctic Waters from the western boundary current is characterized by a thermohaline front extending nearly 2500 km. We use satellite derived sea surface temperature, and chlorophyll-a data combined with hydrographic and surface drifter data to document the intrusions of slope waters onto the continental shelf near 41° S. These intrusions create vertically coherent localized negative temperature and positive salinity anomalies extending onshore about 150 km from the shelf break. The region is associated with a center of action of the first mode of non-seasonal sea surface temperature variability and also relatively high chlorophyll-a variability, suggesting that the intrusions are important in promoting the local development of phytoplankton. The generation of slope water penetrations at this location may be triggered by the inshore excursion of the 100 m isobath, which appears to steer the Malvinas Current waters over the outer shelf.

Summary
Malvinas-slope water intrusions on the northern Patagonia continental shelf

Excerpt
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