00000nam 2200000zi 4500 9.894593 CaOODSP 20221107173801 m o d f cr bn||||||||| 201008s1991 oncab ob f000 0 eng d CaOODSP eng rda CaOODSP n-cn-on n-us-ny x8x8 En37-176/1991E-PDF Tsanis, Ioannis K., 1953- author. Determination of flow distribution in the St. Lawrence River - Cornwall-Massena area / I.K. Tsanis, H. Biberhofer and C.R. Murthy. Burlington, Ontario : National Water Research Institute, [1991] 1 online resource (11 pages, 26 unnumbered pages) : illustrations, maps text txt rdacontent computer c rdamedia online resource cr rdacarrier "Report Series No: WQB/IWD-OR-91-01/I." "A report prepared for National Water Research Institute under Contract No. KW405-9-3103/012-XSE, Supply Services Canada." Digitized edition from print [produced by Environment and Climate Change Canada]. Some pages rotated in this copy. Includes bibliographical references (pages 10-11). "As part of a major research study on developing strategies for a long-term water quality monitoring program in the Cornwall/Massena section of the St. Lawrence River, physical data were analyzed to determine the hydraulic flow characteristics of this area. During the summer of 1989, a moving boat flow measurement system, surface drifters and moored current meters were used to determine the flow distribution in the Cornwall/Massena area located downstream from the Saunders Hydroelectric Power Dam. Two methods were used to evaluate mean cross sectional current velocities and the flow around the Cornwall and St. Regis Islands. Logarithmic profiles were fitted to the horizontal velocity data in the vertical. Mean velocities were calculated along with the bottom shear stresses and the equivalent bottom roughness heights. The cross sectional variability of the bottom roughness height was used with the Manning formula to determine the horizontal velocity distribution. The flow rates were calculated based on the velocity profiles and the moving boat measurement system. The total flow around the Cornwall island is divided into 65.5% through the south channel and 34.5% through the north channel while 34.3% of the total flow is through the channel between Cornwall and St. Regis Islands"--Abstract. Issued also in print format. Stream measurements Saint Lawrence River. Streamflow velocity Saint Lawrence River Measurement. Cours d'eau Jaugeage Saint-Laurent (Fleuve) Écoulement (Hydrologie) Vitesse Saint-Laurent (Fleuve) Mesure. National Water Research Institute (Canada), issuing body. PDF 2.10 MB https://publications.gc.ca/collections/collection_2021/eccc/en37/En37-176-1991-eng.pdf