On the magnitude of upwelling fluxes in shelf-break canyons

摘要

A hydrodynamic model is employed to derive the magnitude of on-shelf fluxes through a shelf-break canyon for a wide range of canyon sizes and ambient oceanic conditions. Predicted canyon-upwelling fluxes are of the order of 0.05-0.1 Sv (1 Sv=1 million m~3/s), being several orders of magnitude greater than upslope fluxes in the bottom Ekman layer on the ambient continental slope.