PMID: 9545213Apr 29, 1998Paper

Two-fraction model of initial sediment motion in gravel-Bed rivers

Science
P R Wilcock

Abstract

The prediction of sediment transport in gravel-bed rivers is essential to the management of land, water, and ecological resources in mountain regions. Dividing the bed sediment into two populations-sand and gravel-permits realistic and useful predictions of the onset of sediment transport. The critical flow initiating grain motion decreases rapidly with sand content over the transition from a gravel-framework bed to a sand-matrix bed. The two-fraction model provides a simple means of forecasting the movement of excess fine sediment supply. The model also helps to explain the development of the abrupt gravel-sand transition commonly observed in natural rivers.

Citations

May 10, 2015·Marine Pollution Bulletin·P Soupy DalyanderMolly McLaughlin
Feb 8, 2014·Marine Pollution Bulletin·P Soupy DalyanderDavid M Thompson
Nov 20, 2016·Scientific Reports·Niannian FanXingnian Liu
Mar 21, 2020·Heliyon·Cynthia Borkai Boye, Etornam Bani Fiadonu

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