Warm and cold water routes of an OGCM thermohaline conveyor belt

Type Article
Date 2001
Language English
Author(s) Speich Sabrina, Blanke Bruno, Madec G
Affiliation(s) Univ Bretagne Occidentale, Lab Phys Oceans, CNRS, IFREMER,UFR Sci, F-29285 Brest, France.
Univ Paris 06, Lab Oceanog Dynam, CNRS, IRD, F-75252 Paris, France.
Source Geophysical Research Letters (0094-8276) (Amer Geophysical Union), 2001 , Vol. 28 , N. 2 , P. 311-314
WOS© Times Cited 71
Abstract A global general circulation model analyzed with a Lagrangian methodology is used to describe and quantify the paths, transports, and characteristics of the "warm" waters forming the upper branch of the conveyor belt in the North Atlantic Ocean. The total transport for this branch turns out to be 17.8 Sv in the North Atlantic at 20 degrees N: 11.8 Sv are composed of waters coming from the two classical origins, the Drake Passage and the Indonesian Throughflow which contribute with 6.5 and 5.3 Sv respectively. The remaining 6 Sv find their origins partly in the passage between Antarctica and the Australian Continent (with 3.1 Sv) and partly in the Indo-Atlantic sector itself (i.e., with 2.9 Sv). The geographical structure of the different routes emphasizes the role of the Southern Ocean and large-scale current systems in water mass transformation and distribution.
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Speich Sabrina, Blanke Bruno, Madec G (2001). Warm and cold water routes of an OGCM thermohaline conveyor belt. Geophysical Research Letters, 28(2), 311-314. Open Access version : https://archimer.ifremer.fr/doc/00000/10597/