Particle Dynamics and Bed Level Adjustments in a Mountain Stream

by Paul A. Carling, Inst of Freshwater Ecology, Cumbria, United Kingdom,



Document Type: Proceeding Paper

Part of: Hydraulic Engineering

Abstract:

The focus of the study was the interaction of coarse bedload sheets with a near-static bed. At a critical discharge bed sediment was transported from upstream sources through the study reach as a discrete slug of bedload. Selective deposition of fine bedload in the coarse surface armour caused physical and hydraulic smoothing of the bed and concomitant adjustment of hydraulic parameters. As the sheet passed reentrainment caused further readjustment to hydraulically rougher conditions.

Subject Headings: Bed materials | Bed loads | Sediment transport | Rivers and streams | Hydraulic loads | Sheets | Particles

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