Velocity and Sediment Concentration Measurements over Bedforms in Sand-Bed Rivers

Robert R. Holmes; M.H. Garcia

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USGS · 70023918

Velocity and Sediment Concentration Measurements over Bedforms in Sand-Bed Rivers

Robert R. Holmes·M.H. Garcia

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Abstract

Bedforms often are present on the bed of alluvial sand-bed rivers. Bedforms, such as dunes, impact the flow field. In this field study, velocity and suspended-sediment concentration measurements were made longitudinally along a dune field in large (5-15 meters deep) alluvial sand-bed rivers. The velocity and suspended-sediment concentration data was collected using an acoustic Doppler current profiler, acoustic Doppler velocimeters, an optical backscatter sensor, and, two sediment intakes. This paper presents a description of these measurement devices and techniques for the collection of this data. Some preliminary results observed at the Missouri River at St. Charles, Missouri are presented.

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Robert R. Holmes, M.H. Garcia. 2002. Velocity and Sediment Concentration Measurements over Bedforms in Sand-Bed Rivers. https://pubs.usgs.gov/publication/70023918

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