Deep water masses and transports in the Vema Fracture Zone.

Fischer, Jürgen , Rhein, Monika, Schott, Friedrich and Stramma, Lothar (1996) Deep water masses and transports in the Vema Fracture Zone. Deep Sea Research Part I: Oceanographic Research Papers, 43 (7). pp. 1067-1074. DOI 10.1016/0967-0637(96)00044-1.

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Recent results from hydrographic, chlorofluoromethane (CFM) and current measurements during an R.V. Meteor cruise in February/March 1994 underscore the importance of the Vema Fracture Zone (VFZ), located near 11°N on the Mid-Atlantic Ridge, for the transport of bottom water from the deep western basin of the equatorial Atlantic into the eastern abyss. The eastward transport in the bottom water range, of 1.8-2.0 Sv below 2.0°C, and of 2.1–2.4 Sv below the level of no motion at 3640 m, was determined by a combination of geostrophic calculations and direct current observations by a lowered ADCP. The comparison to former results indicates that the eastward flow in the VFZ is rather persistent. The water mass properties (Θ, S and CFMs) in the VFZ were compared to stations in the Guiana Basin, in the equatorial channel, and in the Brazil Basin at 10°S suggesting a significant contribution of North Atlantic Deep Water to the entire bottom water layer in the VFZ.

Document Type: Article
Research affiliation: OceanRep > Institute for Marine Science Kiel
OceanRep > GEOMAR > FB1 Ocean Circulation and Climate Dynamics
Refereed: Yes
Open Access Journal?: No
DOI etc.: 10.1016/0967-0637(96)00044-1
ISSN: 0967-0637
Date Deposited: 18 Feb 2008 17:23
Last Modified: 23 Sep 2019 23:46

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