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Use of Acoustic Doppler Instruments for Measuring Discharge in Streams with Appreciable Sediment Transport

By:
Edited by:
Wahl T.L.Pugh C.A.Oberg K.A.Vermeyen T.B.Wahl T.L.Pugh C.A.Oberg K.A.Vermeyen T.B.

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Abstract

The use of Acoustic Doppler current profilers (ADCP) for measuring discharge in streams with sediment transport was discussed. The studies show that the acoustic frequency of an ADCP in combination with the sediment transport characteristics in a river causes the ADCP bottom-tracking algorithms to detect a moving bottom. A moving bottom causes bottom-tracking-referenced water velocities and discharges to be biased low. The results also show that the use of differential global positioning system (DGPS) data allows accurate measurement of water velocities and discharges in such cases.

Additional Publication Details

Publication type:
Conference Paper
Publication Subtype:
Conference Paper
Title:
Use of Acoustic Doppler Instruments for Measuring Discharge in Streams with Appreciable Sediment Transport
ISBN:
0784406553
Year Published:
2002
Language:
English
Larger Work Title:
Hydraulic Measurements and Experimental Methods
First page:
250
Last page:
260
Number of Pages:
11
Conference Title:
Hydraulic Measurements and Experimental Methods 2002
Conference Location:
Estes Park, CO
Conference Date:
28 July 2002 through 1 August 2002