Downstream Hydraulic Geometry of Clay-Dominated Cohesive Bed Rivers
Publication: Journal of Hydraulic Engineering
Volume 136, Issue 8
Abstract
Empirical downstream hydraulic geometry equations for consolidated clay-dominated cohesive bed (nonalluvial) natural streams are presented using data from six rivers in eastern Ontario, Canada and four rivers from other regions. The width exponent (0.57) was comparable to the exponents reported for previous studies; however, the depth exponent (0.52) was greater for clay-dominated cohesive bed than for typical alluvial gravel-bed and sand-bed rivers. The width to depth ratio of smaller channels was greater for consolidated clay bed than for either sand-bed or gravel-bed channels. This study suggests that the concept of hydraulic geometry and bankfull (channel forming) discharge can be extended to nonalluvial consolidated clay-bed channels.
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Information
Published In
Journal of Hydraulic Engineering
Volume 136 • Issue 8 • August 2010
Pages: 524 - 527
Copyright
© 2010 ASCE.
History
Received: Mar 24, 2009
Accepted: Dec 23, 2009
Published online: Jan 5, 2010
Published in print: Aug 2010
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