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A Numerical Study of Time-Dependent Turbulent Ekman Layers over Horizontal and Sloping Bottoms
Publisher: American Meteorological Society
Abstract: A numerical study is made of a time-dependent turbulent Ekman bottom boundary layer. Parameters for the model were chosen to simulate conditions near the bottom of the Florida Current in the Straits of Florida. The model ...
The Importance of Density Stratification to Bottom Boundary Layers over Continental Margins
Publisher: American Meteorological Society
Abstract: Because continental margins are inclined, the boundary layer over them is tied to bottom density as well as to the barotropic pressure gradient. Through the no-flux condition at the sea floor, the bottom boundary layer, ...
Numerical Simulations of Buoyant Ekman Layers. Part II: Rectification in Zero-Mean, Time-Dependent Forcing, and Feedback on the Interior Flow
Publisher: American Meteorological Society
Abstract: The response of the turbulent buoyant bottom Ekman layer near a temperature front over uniform topography is studied here. The background stratification is variable across the slope; the upper slope is either neutrally or ...
A Numerical Study of the Interaction between a Deep Cold Jet and the Bottom Boundary Layer of the Ocean
Publisher: American Meteorological Society
Abstract: A two-dimensional (x-z) primitive equation model is used to study the interaction between a deep cold jet on a sloping bottom and the bottom boundary layer (BBL) of the deep ocean. Two closure schemes are used: a standard ...
On the Structure and Dynamics of the Oceanic Bottom Boundary Layer
Publisher: American Meteorological Society
Abstract: The Mellor and Yamada (1974) Level II turbulence closure scheme is used to study the oceanic bottom boundary layer (BBL). The model is tested against observations of the BBL obtained on the western Florida Shelf reported ...
Evolution of the Deep Western Boundary Current of Antarctic Bottom Water in the Brazil Basin
Publisher: American Meteorological Society
Abstract: A synthesis of WOCE (and other) hydrographic data shows that the deep western boundary current of Antarctic Bottom Water has a double-core structure, and that it is differentially modified during its northward transit ...
Two Views of the Cold Filament
Publisher: American Meteorological Society
Abstract: Two views of the Cold Filament, first described by Weatherly and Kelley, are presented. The first is a local view near 40°N, 62°W. There its upslope edge is found to be a front which by benthic standards is large (its ...
Eulerian Measurements of the North Atlantic Deep Water Deep Western Boundary Current at 18°S
Publisher: American Meteorological Society
Abstract: An 18-month time series of moored current meter observations near 18°S in the Atlantic is used to study the deep western boundary current (DWBC) of North Atlantic Deep Water (NADW). This flow is taken to extend from about ...