Author(s): Marc Drouin; Laurent Simard; Bernard Michel
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Keywords: No Keywords
Abstract: For several years, the St. Lawrence Ship Channel has been conducting ice observations on the St. Lawrence River, the purpose of which, in the early years, was to alleviate the dangers of inundations, always a menace in the periods of thaw. In the last few years, in a burst of energy, further aroused by the promotion of winter navigation, the same organization, with the collaboration of the Ice Mechanics Laboratory personnel of Laval University, has carried out a number of studies purposely designed to better understand the principles governing the formation and regime of the St. Lawrence River ice as well as its physical properties. Studies started in 1970 on the movements of ice floes in tidal reaches. Furthermore, a new programme to determine the ice regime of the St. Lawrence River, between Trois-Rivieres and Quebec City, was originated in 1972. This paper is intended to elaborate on the technique used to measure ice floe velocities from the Pierre Laporte and Laviolette bridges, located in Quebec City and Trois-Rivieres, respectively.
Year: 1972