Abstract

Data from an array of instruments in Hudson Submarine Canyon for 15 weeks are qualitatively consistent with theoretical and laboratory results concerning the concentration of internal wave energy by canyon topographies. Internal wave energy was intensified at the head and near the floor of the canyon, with phase lags suggestive of propagation of internal waves up the canyon from the deep sea. Significant diurnal and semidiurnal internal tides were present, indicating their generation at the topographic relief around the canyon. Internal wave energy is apparently dissipated by mixing at the head of the canyon. A major storm during the experiment induced strong currents in the canyon. These currents are probably more important than internal waves as carriers of sediment except in the very head of the canyon.

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