上海沿海潮汐变化趋势及其影响研究

通过分析上海沿海主要水文测站芦潮港、堡镇和高桥3站的历年潮位、潮差、潮时等水文要素变化趋势，研究得出上海沿海潮汐主要受海平面上升、上游洪水等因素影响。平均潮位变化趋势基本与海平面上升趋势一致，潮差情况呈现杭州湾变大，长江口北港变小的趋势。杭州湾涨潮潮时也出现增大。并对可能出现的影响进行分析。

Study on variation trend of tidal and its effect in coastal area of Shanghai

This paper analyzed the variation tendency of hydrological elements such as tidal level, tidal range, tidal time from three main hydrology stations （ Luchaogang, baozhen and Gaoqiao tide stations ） in coastal area of shanghai, and got the conclusion that tidal in coastal area of shanghai is mainly controlled by factors such as sea level rise and floods at the upper river. The trend of mean tide level change is as same as the trend of sea level rise. Hangzhou hayg tidal range turns to increase, but the range of north channel of Changjiang Estuary turns to decrease. Moreover, the flood tidal time increases in hangzhou bay. It also analyzed the possible influence.