00000nam 2200000za 4500 9.862579 CaOODSP 20241203113644 cr ||||||||||| 181001s1975 oncbdo #ob f000 0 eng d CaOODSP eng eng fre n-cn--- En36-503/86E-PDF En36-503/86 36-503/86 Halliday, R. A. The Niagara River acoustic streamflow measurement system [electronic resource] / R.A. Halliday, W.M. Archer and P.I. Campbell. Ottawa : Environment Canada, Inland Waters Directorate, Water Resources Branch, 1975. vii, 11 p. : maps, graphs, photographs Technical bulletin - Inland Waters Directorate ; no. 86 Contract # 327-4-8069. Incorrect catalogue number (36-503/86) printed in this publication. Digitized edition from print [produced by Environment and Climate Change Canada]. Includes bibliographical references. "Work conducted in other countries in the 1960's demonstrated the feasibility of using acoustic velocity measurement devices for determining flow in open channels. Accordingly, a decision was made to install one such instrument, the Westinghouse Leading Edge (LE) Flowmeter, on a large Canadian river where there was a demand for "real time" streamflow data and where the stage-discharge relationship was affected by backwater. Results obtained would be used to determine the feasibility of operating an acoustic streamflow measurement system under Canadian conditions. A flow meter having a 1700-foot (530-metre) long acoustic path was installed in 1971 and, despite some installation and operational problems, is providing accurate streamflow data. The plans for the future include telemetry of the data to users and further calibration of the instrument"--Abstract, p. vii. Includes abstract in French. gccst Rivers gccst Measurement gccst Water management Archer, W. M. Campbell, P. I. Canada. Environment Canada. Canada. Inland Waters and Lands Directorate. Canada. Water Resources Branch. Technical bulletin (Canada. Inland Waters Directorate) no. 86. (CaOODSP)9.861123 PDF 1.36 MB https://publications.gc.ca/collections/collection_2018/eccc/en36-503/En36-503-86-eng.pdf