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A Simple Model of the Formation and Maintenance of the Shelf/Slope Front in the Middle Atlantic Bight
Publisher: American Meteorological Society
Abstract: The strong salinity and temperature gradients across the shelf/slope front in the Middle Atlantic Bight often compensate such that the cross-front density gradient is nearly eliminated. The suggests that the density field ...
Deceleration of a Finite-Width, Stratified Current over a Sloping Bottom: Frictional Spindown or Buoyancy Shutdown?
Publisher: American Meteorological Society
Abstract: The deceleration of an unforced, two-dimensional, finite-width current over a sloping bottom in a stratified fluid is studied to quantify the relative importance of frictional spindown and buoyancy shutdown when both act ...
Sensitivity of a Model Shelfbreak Front to the Parameterization of Vertical Mixing
Publisher: American Meteorological Society
Abstract: Recent observations have suggested that the trapped-front model of Chapman and Lentz is consistent with some aspects of the shelfbreak front in the Middle Atlantic Bight. The sensitivity of the model to the parameterization ...
Separation of an Advectively Trapped Buoyancy Current at a Bathymetric Bend
Publisher: American Meteorological Society
Abstract: The coastal current system along the east coast of North America, from the Labrador shelf to Cape Hatteras, must negotiate complex bathymetry with numerous sharp bends and large cross-shelf channels. The behavior of these ...
The Generation of Barotropic Edge Waves by Deep-Sea Internal Waves
Publisher: American Meteorological Society
Abstract: A simple two-layer, step-shelf model is used to demonstrate that barotropic (surface) edge waves of substantial amplitude can, in principle, be generated by deep-sea internal waves incident upon the coastal topography. ...
Numerical Treatment of Cross-Shelf Open Boundaries in a Barotropic Coastal Ocean Model
Publisher: American Meteorological Society
Abstract: Using a barotropic coastal ocean model with a straight coastline and uniform cross-shelf bottom slope, seven different cross-shelf open boundary conditions (four of which are applied in either implicit or explicit form) ...
A Numerical Study of the Adjustment of a Narrow Stratified Current over a Sloping Bottom
Publisher: American Meteorological Society
Abstract: The adjustment of a narrow, stratified, cyclonic along-isobath current over a uniformly sloping bottom and the coupling between the current and the bottom boundary layer that develops beneath are investigated using a ...
Boundary Layer Control of Buoyant Coastal Currents and the Establishment of a Shelfbreak Front
Publisher: American Meteorological Society
Abstract: The bottom boundary layer exerts a powerful control over buoyant coastal currents that contact the bottom, providing a mechanism for trapping density fronts along isobaths. Recent observations suggest that this mechanism ...
Dense Water Formation beneath a Time-Dependent Coastal Polynya
Publisher: American Meteorological Society
Abstract: Recent modeling studies of dense water formation beneath an idealized steady coastal polynya have provided simple analytical expressions for the maximum density anomaly achievable as a function of the polynya geometry and ...
Setting the Scales of the Ocean Response to Isolated Convection
Publisher: American Meteorological Society
Abstract: The ocean response to negative buoyancy flux, applied in an isolated region at the surface, is investigated to determine the scales of the equilibrium state, that is, the time to reach equilibrium, the equilibrium density ...