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Statistics of the Richardson Number: Mixing Models and Finestructure
Publisher: American Meteorological Society
Abstract: Parameterization of the dissipation rate of turbulent kinetic energy (?) in terms of Richardson number (Ri = N2/S2) is examined for a variety in internal wave environments. Previous work with these data suggests a scaling ...
Idealized Solutions for the Energy Balance of the Finescale Internal Wave Field
Publisher: American Meteorological Society
Abstract: Recent fine- and microstructure observations indicate enhanced finescale shear and strain in conjunction with bottom-intensified turbulent dissipation above rough bathymetry in the Brazil Basin. Such observations implicate ...
A Heuristic Description of Internal Wave Dynamics
Publisher: American Meteorological Society
Abstract: The oceanic internal wave spectrum has long been interpreted as being shaped by nonlinear processes. The empirical Garrett and Munk synthesis of oceanic observations is E(m, ?) ? Nm?2??2 at high wavenumber and frequency. ...
Mesoscale Eddy–Internal Wave Coupling. Part II: Energetics and Results from PolyMode
Publisher: American Meteorological Society
Abstract: The issue of internal wave?mesoscale eddy interactions is revisited. Previous observational work identified the mesoscale eddy field as a possible source of internal wave energy. Characterization of the coupling as a viscous ...
Mesoscale Eddy–Internal Wave Coupling. Part I: Symmetry, Wave Capture, and Results from the Mid-Ocean Dynamics Experiment
Publisher: American Meteorological Society
Abstract: Vertical profiles of horizontal velocity obtained during the Mid-Ocean Dynamics Experiment (MODE) provided the first published estimates of the high vertical wavenumber structure of horizontal velocity. The data were ...
Isopycnal Dispersion in NATRE
Publisher: American Meteorological Society
Abstract: Finescale velocity and density fluctuations consist of both internal waves and vorticity-containing perturbations (vortical modes). A recent decomposition of observations obtained as part of the North Atlantic Tracer Release ...
On the Origins of the Oceanic Ultraviolet Catastrophe
Publisher: American Meteorological Society
The Impact of Finite-Amplitude Bottom Topography on Internal Wave Generation in the Southern Ocean
Publisher: American Meteorological Society
Abstract: irect observations in the Southern Ocean report enhanced internal wave activity and turbulence in a kilometer-thick layer above rough bottom topography collocated with the deep-reaching fronts of the Antarctic Circumpolar ...
Internal Waves and Turbulence in the Antarctic Circumpolar Current
Publisher: American Meteorological Society
Abstract: his study reports on observations of turbulent dissipation and internal wave-scale flow properties in a standing meander of the Antarctic Circumpolar Current (ACC) north of the Kerguelen Plateau. The authors characterize ...
Sensitivity of the Ocean State to the Vertical Distribution of Internal-Tide-Driven Mixing
Publisher: American Meteorological Society
Abstract: he ocean interior stratification and meridional overturning circulation are largely sustained by diapycnal mixing. The breaking of internal tides is a major source of diapycnal mixing. Many recent climate models parameterize ...