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- W4240097237 abstract "Direct and nearly continuous measurements of bed position changes, near-bed velocities and suspended sand concentrations have been made at a single location on a macro tidal beach in the south west of England. The study was conducted in 0.5-2.25 m water depth under low-energy swell conditions with weak currents present. Bed positions and suspended sand concentrations were measured using the 3 transducers of a multi-frequency acoustic backscatter sensor with 5 mm vertical resolution. Large (upto 10 cm) and rapid (upto 1.0 cm min-1) changes in bed elevation were observed in association with local hydrodynamic forcing, bedform development and bedform migration. Large-scale bedforms observed under breaking waves were highly mobile with measured migration rates of upto 2.2 cm min-1. Suspended sediment concentrations and transport rates are particularly sensitive to changes in bed position changes and subject to potentially large errors (upto 30%) without compensation for bed elevation changes relative to sensor position." @default.
- W4240097237 created "2022-05-12" @default.
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- W4240097237 date "1993-06-24" @default.
- W4240097237 modified "2023-09-26" @default.
- W4240097237 title "Timescales of Bed Response in a Low Energy Surf Zone" @default.
- W4240097237 doi "https://doi.org/10.1061/9780872629332.177" @default.
- W4240097237 hasPublicationYear "1993" @default.
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