A SIMPLE AIR-SEA PLANETARY BOUNDARY LAYER MODEL WITH SPECIAL REFERENCE TO EKMAN CURRENTS Ⅱ——ON THE WINDS OVER SEA SURFACE, THE OCEAN CURRENTS AND THE STORM SURGES IN A SHALLOW SEA

This article is a continuation and a direct generalization of the authors research report [3] published just recently. By means of the same air-sea planetary boundary layer model as that used in [3],the physical diagnostic analyses of the wind and the current profiles, the surface wind stress,the bottom friction, the dissipation of energy and the Ekman pumping in the atmosphere as well as in the ocean under the actions of atmospheric large scale baroclinic disturbances are made systematically for an ocean of finite depth.The effects of the sea depth and the bottom topography on winds and ocean currents are emphasized in this study.The present author makes a succinct comparison between the results obtained in oceans of both infinite and finite depth. This article discusses briefly the atmospheric forcing functions which control the formation and the development of storm surge in shallow water.The magnitude of the storm surge and its characteristic time are numerically estimated.Moreover, some empirical hypotheses concerning wind stress along sea surface and bottom friction may be justified by the theory presented in this paper under some simple circumstances. The results may also be extended rationally to fit more complicated cases where the Coriolis effect due to earth rotation is noticeable. Besides revealing some mechanism of air-sea interaction, many conclusions reached by the theory show an agreement with the observations.