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Nonpropagating Form Drag and Turbulence due to Stratified Flow over Large-Scale Abyssal Hill Topography
Publisher: American Meteorological Society
Abstract: AbstractDrag and turbulence in steady stratified flows over ?abyssal hills? have been parameterized using linear theory and rates of energy cascade due to wave?wave interactions. Linear theory has no drag or energy loss ...
Dissipation of Internal Wave Energy Generated on a Critical Slope
Publisher: American Meteorological Society
Abstract: wo-dimensional simulations of stratified flow over an isolated ridge are used to evaluate energy dissipation associated with barotropic tidal flow over topography with critical or near-critical slope. In the midslope region, ...
Oceanic Isopycnal Slope Spectra. Part I: Internal Waves
Publisher: American Meteorological Society
Abstract: Horizontal tow measurements of internal waves are rare and have been largely supplanted in recent decades by vertical profile measurements. Here, estimates of isotherm displacements and turbulence dissipation rate from a ...
Oceanic Isopycnal Slope Spectra. Part II: Turbulence
Publisher: American Meteorological Society
Abstract: Isopycnal slope spectra were computed from thermistor data obtained using a microstructure platform towed through turbulence generated by internal tidal motions near the Hawaiian Ridge. The spectra were compared with ...
Direct Breaking of the Internal Tide near Topography: Kaena Ridge, Hawaii
Publisher: American Meteorological Society
Abstract: Barotropic to baroclinic conversion and attendant phenomena were recently examined at the Kaena Ridge as an aspect of the Hawaii Ocean Mixing Experiment. Two distinct mixing processes appear to be at work in the waters ...
The Role of Upstream Waves and a Downstream Density Pool in the Growth of Lee Waves: Stratified Flow over the Knight Inlet Sill
Publisher: American Meteorological Society
Abstract: Observations and modeling simulations are presented that illustrate the importance of a density contrast and the upstream response to the time dependence of stratified flow over the Knight Inlet sill. Repeated sections of ...
Tidally Generated Turbulence over the Knight Inlet Sill
Publisher: American Meteorological Society
Abstract: Very high turbulent dissipation rates (above ε = 10?4 W kg?1) were observed in the nonlinear internal lee waves that form each tide over a sill in Knight Inlet, British Columbia. This turbulence was due to both shear ...
Tidal Conversion and Dissipation at Steep Topography in a Channel Poleward of the Critical Latitude
Publisher: American Meteorological Society
Abstract: AbstractIn high-latitude fjords and channels in the Canadian Arctic Archipelago, walls support radiating internal tides as Kelvin waves. Such waves allow for significant barotropic to baroclinic tidal energy conversion, ...
A Simple Parameterization of Turbulent Tidal Mixing near Supercritical Topography
Publisher: American Meteorological Society
Abstract: A simple parameterization for tidal dissipation near supercritical topography, designed to be applied at deep midocean ridges, is presented. In this parameterization, radiation of internal tides is quantified using a linear ...
Parameterizing Surface and Internal Tide Scattering and Breaking on Supercritical Topography: The One- and Two-Ridge Cases
Publisher: American Meteorological Society
Abstract: parameterization is presented for turbulence dissipation due to internal tides generated at and impinging upon topography steep enough to be ?supercritical? with respect to the tide. The parameterization requires knowledge ...
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