A Comparison of Tidal Sediment Boundary Layer Profiles with Theory

by Keith W. Bedford, Ohio State Univ, Columbus, OH, USA,
Onyx Wai, Ohio State Univ, Columbus, OH, USA,
Mohammed Abdelrhman, Ohio State Univ, Columbus, OH, USA,

Document Type: Proceeding Paper

Part of: Hydraulic Engineering


A number of theoretical derivations have been presented for predictions of the sediment concentration profile near or at the bottom of a column of surface water. Ultrasonic transceivers now permit exceptionally dense sediment concentration profile data to be collected in-situ within the bottom one meter of the water column, and with these data it is now possible to begin comparing the in-situ average profile data with theoretical predictions. It is also possible to analyze each measured shape comprising the temporal averaged profile, the outcome of which is a sequence of ensemble average pattern profile shapes or classes and the occurrence frequency of each within each temporal average. The objectives of this paper are to pursue the above two goals.

Subject Headings: Tides | Sediment | Boundary layers | Comparative studies | Field tests | Data collection | Regression analysis | Surface water

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