Transport and bottom boundary layerobservations of the North Atlantic Deep Western Boundary Current at the Blake Outer Ridge
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چکیده
منابع مشابه
Attribution of Deep Western Boundary Current variability at 26.51N
Observed variations in the Deep Western Boundary Current (DWBC) at 26.51N, which carries the deep limb of the Atlantic Meridional Overturning Circulation (MOC), have been shown to greatly exceed in magnitude the variations of the overall basin-wide MOC, with strong variability at a range of time scales from weeks to multiple-months. Attribution of these strong DWBC variations will be crucial fo...
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[1] Transport fluctuations of the deep limb of the Meridional Overturning Circulation (MOC) near the western boundary are presented from a line of inverted echo sounders, bottom pressure sensors, and a deep current meter east of Abaco Island, Bahamas, at 26.5 N from September 2004 through September 2005. The mean southward flow between 800 dbar and 4800 dbar was 39 10m s , with a northward reci...
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Five current meter moorings and four horizontal electric field records spanning June 1990–February 1992 are used to describe the mean structure and variability of the vertically averaged velocity field and volume transport extending 425 km east of Abaco, The Bahamas, at 26.58N. Examination of zonal and meridional velocity sections shows that, while meandering may explain part of the variability...
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The mechanisms affecting the path of the depth-integrated North Atlantic western boundary current and the formation of the northern recirculation gyre are investigated using a hierarchy of models, namely, a robust diagnostic model, a prognostic model using a global 1° ocean general circulation model coupled to a two-dimensional atmospheric energy balance model with a hydrological cycle, a simpl...
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Seismic analyses of methane hydrate data from the Blake Outer Ridge indicate high Pwave velocity and anomalously low S-wave velocity in sediments containing methane hydrates. In an attempt to explain this observed P-wave and S-wave velocity structure at the transition from gas to hydrates, the effect of different hydrate models on elastic moduli and velocities are explored. After construction o...
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ژورنال
عنوان ژورنال: Deep Sea Research Part II: Topical Studies in Oceanography
سال: 1999
ISSN: 0967-0645
DOI: 10.1016/s0967-0645(98)00101-5