SPREADING OF ANTARCTIC BOTTOM WATER IN THE ATLANTIC OCEAN

This paper describes the transport of bottom water from its source region in the Weddell Sea through the abyssal channels of the Atlantic Ocean. The research brings together the recent observations and historical data. A strong flow of Antarctic Bottom Water through the Vema Channel is analyzed. The...

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Bibliographic Details
Published in:GEOGRAPHY, ENVIRONMENT, SUSTAINABILITY
Main Authors: Eugene Morozov, Roman Tarakanov, Walter Zenk
Format: Article in Journal/Newspaper
Language:English
Published: Lomonosov Moscow State University 2012
Subjects:
abyssal channels
vema
romanche
chain
kane
bottom water
geo
envir
Antarctic
Weddell Sea
Weddell
Kane
Antarc*
Northeast Atlantic
Online Access:https://doi.org/10.24057/2071-9388-2012-5-4-24-32
https://doaj.org/article/bb524bb388b9496ba41d2a6f5497558d
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Summary:This paper describes the transport of bottom water from its source region in the Weddell Sea through the abyssal channels of the Atlantic Ocean. The research brings together the recent observations and historical data. A strong flow of Antarctic Bottom Water through the Vema Channel is analyzed. The mean speed of the flow is 30 cm/s. A temperature increase was found in the deep Vema Channel, which has been observed for 30 years already. The flow of bottom water in the northern part of the Brazil Basin splits. Part of the water flows through the Romanche and Chain fracture zones. The other part flows to the North American Basin. Part of the latter flow propagates through the Vema Fracture Zone into the Northeast Atlantic. The properties of bottom water in the Kane Gap and Discovery Gap are also analyzed.

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