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Vancouver Harbour tidal current atlas

Item consists of one bound album measuring 57 x 29.5 cm. It contains one location map and 12 charts of Vancouver Harbour that depict mean current velocities and patterns for each hour of the tidal cycle. This January 2, 1981 edition is an update to the 1973 atlas and is based on data obtained from surveys conducted in 1972 and 1980 by the Tides, Currents and Water Levels Section of the Canadian Hydrographic Service.

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