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0019.917943
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008221202s2021    onca    ob   f000 0 eng d
040 |aCaOODSP|beng|erda|cCaOODSP
0861 |aEn56-302/2021E-PDF
24500|aMeasuring discharge with acoustic doppler current profilers from a moving boat.
250 |aVersion 2.0.
264 4|aOttawa, Ontario : |bWater Survey of Canada, |c2021.
300 |a1 online resource (i, x, 129 pages) : |billustrations (some colour)
336 |atext|btxt|2rdacontent
337 |acomputer|bc|2rdamedia
338 |aonline resource|bcr|2rdacarrier
500 |aOn cover: Version adapted for Water Survey of Canada based on Techniques and Methods 3-A22, U.S. Geological Survey.
504 |aIncludes bibliographical references.
5203 |a"The use of acoustic Doppler current profilers (ADCPs) from a moving boat is now a commonly used method for measuring streamflow. The technology and methods for making ADCP-based discharge measurements are different from the technology and methods used to make traditional discharge measurements with mechanical meters. Although the ADCP is a valuable tool for measuring streamflow, it is only accurate when used with appropriate techniques. This report presents guidance on the use of ADCPs for measuring streamflow; this guidance is based on the experience of U.S. Geological Survey and Water Survey of Canada employees and published reports and papers. The guidance is presented in a logical progression, from pre-deployment planning, to field data collection, and finally to post-processing of the collected data. Acoustic Doppler technology and instruments are discussed to highlight their advantages and limitations. More in-depth, technical explanations of how an ADCP measures streamflow and what to do when measuring in moving-bed conditions are presented in the appendices. ADCP users need to know the proper procedures for measuring discharge from a moving boat and why those procedures are required, so that when the user encounters unusual field conditions, the procedures can be adapted without sacrificing the accuracy of the streamflow-measurement data"--Abstract, page 1.
650 0|aStream measurements.
650 0|aStream measurements|xInstruments.
650 0|aUnderwater acoustics|xInstruments.
650 6|aCours d'eau|xJaugeage.
650 6|aCours d'eau|xJaugeage|xInstruments.
650 6|aAcoustique sous-marine|xInstruments.
7102 |aWater Survey of Canada, |eissuing body.
85640|qPDF|s3.31 MB|uhttps://publications.gc.ca/collections/collection_2022/eccc/En56-302-2021-eng.pdf