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Abstract
Two series of rather extensive current measurements were carried out in Robeson Channel during the early spring season of 1971 and 1972. The analysis of the data indicates a strong southerly flow, of the order of 30 cm/sec, in the western portion of the channel, which can fluctuate 10 to 14 cm/sec over an interval of a few days; a return, northerly flow may exist in the lower depths in the eastern portion of the channel; and a transverse structure in the mean flow suggests the possibility of upwelling along the Canadian coast. The semidiurnal tidal currents may reach a speed of over 30 cm/sec at intermediate depth, and their maxima occur almost simultaneously across the channel. The diurnal tidal currents are of the order of 10 cm/sec, and their maxima occur progressively later from east to west. The presence of inertial oscillations, whose frequency nearly coincides with that of the semidiurnal tidal oscillations, may be detected indirectly by an inspection of the differences between the observed currents and the tidal currents coherent with the vertical tide.