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Residual Circulations Due to Bottom Roughness Variability under Tidal Flows
Tidal Flows nonlinear interaction residual circulation flows
2008/12/16
Tidal flows over irregular bathymetry are known to produce residual circulation flows due to nonlinear interaction with gradients of depth. Using the depth-averaged vorticity equations, the generation...
Amplification of Tidal Currents by Overflow on the Iceland-Faeroe Ridge
Tidal Currents Iceland-Faeroe Ridge Overflow
2008/12/15
During several days in July 1990, there was an abrupt increase in semidiurnal tidal current in the upper part of the water column seaward of the steep continental rise southeast of Iceland. This tidal...
Mixing Efficiencies in Turbulent Tidal Fronts：Results from Direct and Indirect Measurements of Density Flux
Mixing Efficiencies Turbulent Tidal Fronts Density Flux
2008/12/12
The authors report direct measurements of density flux at a single depth in a turbulent tidal flow, made by towing a CTD beside the vertical beam of a modified acoustic Doppler current profiler. The d...
A Numerical Study of Stratified Tidal Rectification over Finite-Amplitude Banks. Part II：Georges Bank
Gulf of Maine coastal ocean circulation model Stratified Tidal Rectification Georges Bank
2008/12/12
Tidal rectification over an idealized two-dimensional cross section of Georges Bank, which is a large, shallow, elongated submarine bank in the Gulf of Maine, is studied using a primitive equation coa...
A Numerical Study of Stratified Tidal Rectification over Finite-Amplitude Banks. Part I：Symmetric Banks
equation coastal ocean circulation model Symmetric Banks
2008/12/12
Tidal rectification over a two-dimensional finite-amplitude symmetrical bank is studied using the Blumberg and Mellor primitive equation coastal ocean circulation model (ECOM-si). In the homogeneous c...
A Coupled Hydrodynamic–Bottom Boundary Layer Model of Storm and Tidal Flow in the Middle Atlantic Bight of North America
Middle Atlantic Bight Hydrodynamic–Bottom Boundary Layer Model Tidal Flow
2008/12/11
The effects of increased friction and tides on circulation in the Middle Atlantic Bight (MAB) during the SWADE storm of 25–28 October 1990 have been investigated using a three-dimensional hydrodynamic...
Sensitivity of Tidal Bed Stress Distributions, Near-Bed Currents, Overtides, and Tidal Residuals to Frictional Effects in the Eastern Irish Sea
Tidal Bed Stress Near-Bed Currents Tidal Residuals Frictional Effects Eastern Irish Sea
2008/12/11
A three-dimensional nonlinear high-resolution hydrodynamic model of the eastern Irish Sea is used to examine the influence of near-bed viscosity and bottom friction Upon the M2 tide and overrides in t...
Tidal Mixing Signatures in the Indonesian Seas
Tidal Mixing Signatures low-frequency tidal Indonesian Seas
2008/12/10
Expressions of low-frequency tidal periods are found throughout the Indonesian Seas' temperature field, supporting the hypothesis that vertical mixing is enhanced within the Indonesian Seas by the tid...
Application of Turbulence Energy Models to the Computation of Tidal Currents and Mixing Intensities in Shelf Edge Regions
Tidal Currents Shelf Edge Regions Mixing Intensities
2008/12/9
The major steps in the formulation of a three-dimensional shelf edge model using a sigma coordinate system in the vertical are briefly described. Vertical diffusion of momentum is parameterized using ...
A Case Study of Wave–Current Interaction in a Strong Tidal Current
Wave–Current Interaction Strong Tidal Current three Waverider buoys
2008/12/8
During August 1991, a field program was carried out in the vicinity of Cape St. James, off the British Columbia coast, where a strong tidally driven flow interacts with an active wave climate. Surface...
Characterization of Three-Dimensional Lagrangian Circulation Associated with Tidal Rectification over a Submarine Bank
three-dimensional two-dimensional Tidal Rectification Submarine Bank
2008/11/26
Two approaches to the quantitative characterization of Lagrangian circulation in three-dimensional (3D) time-periodic current fields are used to describe major features of a model-derived flow field f...
A Numerical Study of the Fortnightly Modulation of Basin–Ocean Water Exchange across a Tidal Mixing Zone
Tidal Mixing Zone Basin–Ocean Water Exchange estuarine shear flow
2008/10/28
The authors examine the effect of fortnightly modulated tidal mixing over a sill on a bidirectional estuarine shear flow through it. The study proceeds numerically by using two sets of vertically two-...
A survey of the theoretical aspects of tidal rectification over a continental slope in the inviscid fluid approximation is proposed. In particular, the geostrophic degeneracy problem, evoked by A. W. ...
Tidal Eulerian Residual Currents over a Slope: Analytical and Numerical Frictionless Models
Residual Currents Numerical Frictionless Models
2008/10/27
The Eulerian residual tidal currents generated over a continental slope are examined. Using the assumption of a Poincaré wave, the linear frictionless solution of a semidiurnal tidal wave propagating ...
The phase of the M2 surface elevation tide changes by 100° along a 40-km length of Cook Strait, New Zealand. Acoustic Doppler Current Profiler measurements are presented that show a change of only 12°...
