V. A. Ivanov, T. Ya. Shulga, T. V. Plastun
Marine Hydrophysical Institute of RAS, Sevastopol, Russia
Abstract
The influence of bottom relief on the spacial and temporal parameters of barotropic trapped waves is studied in the framework of linear shallow water equations. The continental shelf under study consists of sections of various widths, shared by normals to the shoreline to study in detail. The calculations were showed that the topography of continental shelf influences on the spatial scale of shelf waves, while the group velocity reaches a minimum at the intermediate wave numbers. An increase in the width of continental slope leads to lower decay of wave to the open sea. It is shown that the waves of the second mode are more sensitive to the shelf geometry changes compared to the waves of the first mode.
Keywords
Kelvin wave, phase velocity, shelf, barotropic trapped waves, continental slope