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Interaction of fine sediment with alluvial streambeds

Water Resources Research

By:
and
https://doi.org/10.1029/WR025i001p00135

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Abstract

More knowledge is needed about the physical processes that control the transport of fine sediment moving over an alluvial bed. The knowledge is needed to design rational sampling and monitoring programs that assess the transport and fate of toxic substances in surface waters because the toxics are often associated with silt- and clay-sized particles. This technical note reviews some of the past research in areas that may contribute to an increased understanding of the processes involved. An alluvial streambed can have a large capacity to store fine sediments that are extracted from the flow when instream concentrations are high and it can gradually release fine sediment to the flow when the instream concentrations are low. Several types of storage mechanisms are available depending on the relative size distribution of the suspended load and bed material, as well as the flow hydraulics. Alluvial flow tends to segregate the deposited material according to size and density. Some of the storage locations are temporary, but some can store the fine sediment for very long periods of time.

Additional publication details

Publication type:
Article
Publication Subtype:
Journal Article
Title:
Interaction of fine sediment with alluvial streambeds
Series title:
Water Resources Research
DOI:
10.1029/WR025i001p00135
Volume:
25
Issue:
1
Year Published:
1989
Language:
English
Publisher:
American Geophysical Union
Description:
6 p.
First page:
135
Last page:
140