Field evaluation of boat-mounted acoustic Doppler instruments used to measure streamflow

Edited by:
Rizoli J.A.


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The use of instruments based on the Doppler principle for measuring water velocity and computing discharge is common within the U.S. Geological Survey (USGS). The instruments and software have changed appreciably during the last 5 years; therefore, the USGS has begun field validation of the instruments used to make discharge measurements from a moving boat. Instruments manufactured by SonTek/YSI and RD Instruments, Inc. were used to collect discharge data at five different sites. One or more traditional discharge measurements were made using a Price AA current meter and standard USGS procedures concurrent with the acoustic instruments at each site. Discharges measured with the acoustic instruments were compared with discharges measured with Price AA current meters and the USGS stage-discharge rating for each site. The mean discharges measured by each acoustic instrument were within 5 percent of the Price AA-based measurement and (or) discharge from the stage-discharge rating.

Additional publication details

Publication type:
Conference Paper
Publication Subtype:
Conference Paper
Field evaluation of boat-mounted acoustic Doppler instruments used to measure streamflow
Year Published:
Larger Work Title:
Proceedings of the IEEE Working Conference on Current Measurement
First page:
Last page:
Conference Title:
Proceedings of the IEEE Seventh Working Conference on Current Measurement; Current and Wave Monitoring and Emerging Technologies
Conference Location:
San Diego, CA
Conference Date:
13 March 2003 through 15 March 2003