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Mechanisms of low-frequency sea level fluctuations in the Hangzhou Bay
引用本文:Chen Wei,Su Jilan. Mechanisms of low-frequency sea level fluctuations in the Hangzhou Bay[J]. 海洋学报(英文版), 1991, 10(2): 183-198
作者姓名:Chen Wei  Su Jilan
作者单位:Second Institute of Oceanography, State Oceanic Administration, Hangzhou, 310012, China;Second Institute of Oceanography, State Oceanic Administration, Hangzhou, 310012, China
摘    要:-low-frequency sea level fluctuations in the Hangzhou Bay in winter and summer, 1973-1974 are analyzed in this paper. The established multi-spectrum response models effectively identify the different dynamical factors and their contributions to the low-frequency sea level fluctuations inside the bay. The results show that the Ekman transport due to longshore winds is the major mechanism to induce the sea level fluctuations, more important than the frictional effect of local winds. There also exists obviously the influental effect of the free fluctuations of the continental shelf. In addition ,a simple estimation suggests that the remarkable sea level fluctuation of 0. 4 d-1 in the bay is related to the resonance of the Huanghai Sea and the Bohai Sea (taken as a single bay).

收稿时间:1989-06-01
修稿时间:1989-11-02

Mechanisms of low-frequency sea level fluctuations in the Hangzhou Bay
Chen Wei and Su Jilan. Mechanisms of low-frequency sea level fluctuations in the Hangzhou Bay[J]. Acta Oceanologica Sinica, 1991, 10(2): 183-198
Authors:Chen Wei and Su Jilan
Affiliation:Second Institute of Oceanography, State Oceanic Administration, Hangzhou, 310012, China
Abstract:low-frequency sea level fluctuations in the Hangzhou Bay in winter and summer,1973-1974 are analyzed in this paper.The established multi-spectrum response models effectively identify the different dynamical factors and their contributions to the low-frequency sea level fluctuations inside the bay.The results show that the Ekman transport due to longshore winds is the major mechanism to induce the sea level fluctuations,more important than the frictional effect of local winds.There also exists obviously the influental effect of the free fluctuations of the continental shelf.In addition,a simple estimation suggests that the remarkable sea level fluctuation of 0.4 d-1 in the bay is related to the resonance of the Huanghai Sea and the Bohai Sea (taken as a single bay).
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