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Wave Friction Factors in Nearshore Sands
Publisher: American Meteorological Society
Abstract: Wave friction factors are estimated from vertical profiles of near-bed turbulence and horizontal velocity spanning the wave bottom boundary layer. Measured values are partitioned by bed state, which ranged from irregular ...
The Vertical Structure of the Wave Bottom Boundary Layer over a Sloping Bed: Theory and Field Measurements
Publisher: American Meteorological Society
Abstract: Theoretical solutions for the wave bottom boundary layer (WBL) over a sloping bed are compared with field measurements in the nearshore zone. The WBL theory is constructed using both viscoelastic?diffusion and conventional ...
A Coherent Doppler Profiler for High-Resolution Particle Velocimetry in the Ocean: Laboratory Measurements of Turbulence and Particle Flux
Publisher: American Meteorological Society
Abstract: A pulse-to-pulse coherent acoustic Doppler profiler has been developed for high-resolution particle velocimetry in the ocean, in particular for remote measurements of suspended sediment flux and turbulence in the nearshore ...
Density Current Flow into Fortune Bay, Newfoundland
Publisher: American Meteorological Society
Abstract: Current meter and CTD data are presented, describing a dense bottom current which transports Labrador Current Water into Fortune Bay, Newfoundland. The effects of rotation and friction are discussed and the three-dimensional ...
Asymptotic Properties of an Autocorrelation Coefficient for Coherent Doppler Sonar
Publisher: American Meteorological Society
Abstract: new formula is derived for the asymptotic form of the magnitude of an autocorrelation coefficient for coherent Doppler sonar. The autocorrelation magnitude is shown to be a biased estimator in the limit of infinite ensemble ...
Untitled
Publisher: American Meteorological Society
Abstract: AbstractSpectral and structure function methods are implemented to compute the dissipation rate ε from broadband, diverging-beam acoustic Doppler current profiler (ADCP) data collected at four sites in a high-flow tidal ...
Simultaneous Velocity Ambiguity Resolution and Noise Suppression for Multifrequency Coherent Doppler Sonar
Publisher: American Meteorological Society
Abstract: oherent Doppler sonar is a useful tool for noninvasive measurement of ocean currents, sediment transport, and turbulence in coastal environments. Various methods have been proposed to separately address two of its inherent ...
Storm-Induced Circulation in Lunenburg Bay of Nova Scotia: Observations and Numerical Simulations
Publisher: American Meteorological Society
Abstract: An extreme weather event (Hurricane Juan) made landfall in Nova Scotia, Canada, in September 2003. The storm produced an ?70-cm storm surge and ?40 cm s?1 coastal currents in Lunenburg Bay, registered by a coastal observing ...