Physical Properties of Turbulent Benthic Boundary Layers Generated by Internal Waves
Publication: Journal of Hydraulic Engineering
Volume 130, Issue 1
Abstract
Physical properties of active turbulent benthic boundary layers (TBBL) generated by basin scale internal waves were studied within a Northern hemisphere thermally stratified lake. A microstructure profiler was used to measure the nature of the turbulence within the TBBLs while a series of thermistor chains were used to monitor the thermal structure of the lake. It was observed that a wind-driven anticlockwise diurnal-period vertical mode one Kelvin wave generated large scale motions within the water column, and that the interactions between this wave and the sloping lakebed induced TBBLs. A simple model, based on potential energy change and boundary shearing, was shown to describe the mean TBBL thickness.
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Published In
Journal of Hydraulic Engineering
Volume 130 • Issue 1 • January 2004
Pages: 58 - 69
Copyright
Copyright © 2004 American Society of Civil Engineers.
History
Received: Jun 8, 2000
Accepted: Apr 23, 2003
Published online: Dec 15, 2003
Published in print: Jan 2004
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