Tidal Motion in Submarine Canyons—A Laboratory Experiment

摘要: Abstract The reasons for the large-amplitude tidal motion observed in oceanic submarine canyons have been explored with a laboratory experiment. A barotropic tide was forced stratified tank, containing continental shelf-slope topography into which narrow canyon incised. Large-amplitude motions were canyon; it is shown that these by large horizontal pressure gradient existing on shelf near head. Another significant feature of this experiment internal waves inside partially reflected from open boundary at mouth canyon, like sound end an organ pipe. This enabled energy to propagate down form leaky modes. character flow strongly dependent ratio bottom slope α ray (or characteristic) c. For α/c Lt; 1 stratification had little effect motion, and largest displacements nearly an...