Tasman leakage: a new route in the global ocean conveyor belt

The existence of a new route that draws relatively cold waters from the Pacific Ocean to the North Atlantic via the Tasman outflow is presented. The new route materialises with comparable magnitude and characteristics in three independent numerical realisations of the global ocean circulation. Its r...

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Bibliographic Details
Published in:Geophysical Research Letters
Main Authors: Speich, S., Blanke, B., de Vries, P., Doos, K., Drijfhout, S., Ganachaud, A., Marsh, R.
Format: Article in Journal/Newspaper
Language:unknown
Published: 2002
Subjects:
Drake Passage
Pacific
North Atlantic
Online Access:https://eprints.soton.ac.uk/39302/
Description
Summary:The existence of a new route that draws relatively cold waters from the Pacific Ocean to the North Atlantic via the Tasman outflow is presented. The new route materialises with comparable magnitude and characteristics in three independent numerical realisations of the global ocean circulation. Its realism is supported by hydrographic data interpolated via an inverse model. The “Tasman leakage” constitutes a sizeable component of the upper branch of the global conveyor belt and represents an extension to the prevailing views that hitherto emphasised the routes via the Drake Passage and the Indonesian Throughflow [ Gordon, 1986 ].

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