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本文根据历史资料,讨论了杭州湾南北岸潮差差异的原因。认为可将杭州湾分为两段,在金山卫以东湾区,科氏效应是造成此种差异的主要原因,在这里,潮波具有凯尔文波性质,并给出了一个联系两岸潮位(从而潮差)的关系式;而在金山卫断面以西湾区,地形因素是潮波形变的主要原因。乍浦南岸的大片滩地使潮汐特性复杂化。
Based on historical data, this paper discusses the reasons for the difference of tidal range between the north and south banks of Hangzhou Bay. It is considered that the Hangzhou Bay can be divided into two sections. In the east Bay Area of Jinshanwei, the Corus effect is the main reason for this difference. Here, the tidal wave has the Kelvin wave property and gives a relation between the tidal level (And therefore tidal range) relationship; and Jinshan Wei section west of the Bay area, topography is the main reason for tidal wave deformation. The vast tidal flats on the southern bank of Zhapuze make tidal characteristics more complicated.