Residual currents in plume front zone of the Hangzhou Bay

Chen Wei; Huang Daji; Yang Zhaoqing

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Chen Wei,Huang Daji,Yang Zhaoqing.Residual currents in plume front zone of the Hangzhou Bay[J].Acta Oceanologica Sinica,1993,(1):29-37

Residual currents in plume front zone of the Hangzhou Bay

投稿时间：1992-07-01 修订日期：1993-04-21

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作者	单位
Chen Wei	Second Institute of Oceanography, State Oceanic Administration, Hangzhou 310012, China
Huang Daji	Second Institute of Oceanography, State Oceanic Administration, Hangzhou 310012, China
Yang Zhaoqing	Second Institute of Oceanography, State Oceanic Administration, Hangzhou 310012, China

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中文摘要:

It is of some limitations to analyse residual currents by means of the 25 h anchored current measurements. On the basis of the drift tracking and the mooring system data, here, analyses have been done aiming at the structural characteristics and the dynamical mechanisms of the frontal residual current field of the Hangzhou Bay. Especially a theoritical model is given focusing on the frontal density-driven currents. The results indicate that there exists obviously the upper-layer front-driven flow along the orientation of the front during neap tides in the research area of the Hangzhou Bay. But the flow is restrained by the strong vortical viscosity during spring tides. In the lower layer, the effect of the front is little and the subtidal movements are dominated by the tide-induced residual currents. In addition, the influences of wind forcing to the residual current field are also suggested to be important.

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