Results 221 to 230 of about 86,912 (265)

Dense Bottom Currents

1986
A dense bottom current or a light roof current is the flow created by a source of mass, momentum, and buoyancy flowing into an ambient fluid in such a way that the flow is bounded by the fixed wall and the interface. The dense bottom currents and light roof currents are primarily driven by buoyancy forces.
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A Bottom Current Along the Shelf Break

Journal of Physical Oceanography, 1975
Abstract The theory of Hill and Johnson for upwelling over the shelf break is modified to give agreement with the work of Killworth. It is shown that when upwelling occurs over a discontinuity in bottom slope, this upwelling does not penetrate into the surface Ekman layer.
J. A. Johnson, P. D. Killworth
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Downward Migration of Dense Bottom Currents

Environmental Fluid Mechanics, 2001
The focus of this paper is on the dynamics of a dense current flowing along the continental slope, and the frictionally induced downward motion it experiences. In particular, the movement of the lateral boundaries where the isopycnals meet the bottom are considered.
A.K. WÅhlin, G. Walin
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Surface and Bottom Currents in the Strait of Georgia

Journal of the Fisheries Research Board of Canada, 1956
Measurements of the currents close to the bottom and at the surface have been made at six stations along a section across the Strait of Georgia from Point Roberts to Galiano Island, and at two stations in Trincomali Channel. After adjusting to the maximum tidal range the mean bottom currents were about 0.3 knot with a maximum of 1 knot. At the surface
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Longshore Currents, Upwelling and Bottom Topography

Journal of Physical Oceanography, 1974
Abstract The effect of shelf-like bottom topography on a steady, linear, stratified, three-dimensional model of coastal upwelling is examined. It is shown that the presence of the bottom slope 1) reduces the role of the lower Ekman layer in the upwelling mass balance, and 2) introduces a barotropic boundary layer which can, depending on a balance of ...
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The effect of bottom topography on the Agulhas Current

pure and applied geophysics, 1972
Methods used by Warren and later modified by Niiller and Robinson have been used to investigate the Agulhas Current and other currents associated with it. The results show that with the assistance of a small bottom current of 4 cm/s in the same direction as the main current, the Agulhas Current can proceed round the Cape of Good Hope during three out ...
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Bottom current measurements in the Tasman Sea

Journal of Geophysical Research, 1969
Bottom current velocities of 1 to 9 cm/sec were measured for periods of 0.5 to 1.2 hours at five sites in the Tasman Sea. At four sites a northerly component was present. Bottom photographs indicate stronger currents have occurred at several sites. The results in most cases support previous ideas on flow inferred from water properties.
N. P. Laird, T. V. Ryan
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Dense Bottom Currents in Rotating Ocean

Journal of the Hydraulics Division, 1980
A dense bottom current is the flow created by a source of mass, momentum, and buoyancy flowing into an ambient fluid in such a way that the flow is bounded by the fixed wall and the interface. The dense bottom currents are primarily driven by buoyancy forces (reduced gravity).
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Baroclinic Instability of Bottom-Dwelling Currents

2001
Density-driven benthic flows are important in the dynamics of marginal seas, river estuaries and other coastal regions (LeBlond et al., 1991; Price & O’Neil Baringer, 1994). They often occur along sloping continental shelves, flowing with shallower water on their right (in the northern hemisphere).
Mateusz K. Reszka, Gordon E. Swaters
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A retrievable bottom-mounted current meter

Ocean Engineering, 1973
Abstract The design and use of a lightweight, retrievable, bottom-mounted current meter for taking current measurements to ocean depths of 1800 m are described.
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