Tide-induced residual currents with Stokes and Ekman layers over an undulatory sea floor |
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| Authors: | Hidekazu Yasuda J T F Zimmerman |
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| Institution: | (1) Government Industrial Research Institute, Chugoku, 15000 Hiro-machi, 737-01 Kure, Japan;(2) Netherlands Institute for Sea Research, pob 59, 1790 AB Texel, The Netherlands;(3) Inst. Meteorology and Oceanography, University of Utrecht, The Netherlands |
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| Abstract: | Residual currents induced by the tidal current flowing over a rotating ridge, which is infinitely elongated in they-direction and the width of which is so large that the nonlinear effect is weak enough, have been analysed theoretically. The currents are restrained by Stokes and Ekman layers which are given through a constant viscosity. This study shows that the direction of the cross-isobath residual current just above the sea floor varies with the value off
*(=Coriolis parameter/tide frequency), that the along-isobath residual current forms a clockwise circulation around the rotating ridge and that it is stronger asf
* grows larger. |
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