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Sedimentation within a regulated river

Petts, Geoffrey E. (1984) Sedimentation within a regulated river. Earth Surface Processes and Landforms, 9 (2). pp. 125-134. ISSN 0197-9337

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Official URL: http://dx.doi.org/10.1002/esp.3290090204

Abstract

Channel change induced by tributary sediment injection to a regulated, gravel-bed river is described for the River Rheidol, U.K., eighteen years after dam closure. Morphological and sedimentological data are presented for an aggrading reach. A primary lobate bar appears to have initiated flow separation and the subsequent construction of channel-side berms. Hydraulic sorting has operated to produce both longitudinal and lateral particle-size reduction, and selective particle-size dispersal appears to be an important process influencing channel change. The channel is adjusting to a lower width-depth ratio form, of smaller capacity, and with a steeper slope.

Item Type:Article
Research Community:University of Westminster > Life Sciences, School of
ID Code:5926
Deposited On:10 Feb 2009 11:54
Last Modified:22 Dec 2009 10:28

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