海洋科学2017，Vol.41Issue(8)：76-85,10.DOI:10.11759/hykx20161019001
乐清湾水域纳潮量演变分析
Analysis of evolution of tidal prism of the Yueqing Bay
摘要
Abstract
In this study, we investigated the historical change conditions along the Yueqing coastline and the dif-ferent characteristic water depths around the area. Based on the topographical data of different periods and satellite remote sensing image data since 1965, we accurately calculated the evolution characteristics of different water areas over these 50 years. Also, using actual measured topographical and hydrological data, we developed a two-dimensional tidal mathematical model of the Yueqing Bay to analyze the evolutionary changes in the tidal volume. The results reveal that: (1) The tidal volume in the Yueqing Bay has decreased by 3.16 × 108 m3 over the past 50 years. Compared with the tidal volume in 1965, the tidal volume of 2013 shows it to have decreased by 17.69％. The average annual decline rate has changed from 0.06 × 108 m3/a to the current 1.96 × 108 m3/a. (2) En-closing and reclamation processes in different areas have shown some impact on the reduction of the sea water area, but the tidal volume impact is significant. The inner enclosing impact has been small whereas the outer enclosing impact has obviously diminished from inside the bay to the inner bay. The second phase of the Xuanmen Bay has had a great impact on changes in the Yueqing Bay's tidal status, and has greatly affected the tidal volumes in all bays in the area. As demonstrated in this study, it is possible to provide quantitative reference data for the ecological environment protection of the bay and to forecast the development trend of the gulf by exploring the mutual re-sponses of the change in the tidal volume and the reclamation activity in the Yueqing Bay.关键词
乐清湾/水域面积/纳潮量/演变分析Key words
the Yueqing Bay/water area/tidal prism/evolution analysis分类
建筑与水利引用本文复制引用
王诚超,潘国富,许雪峰,陈培雄..乐清湾水域纳潮量演变分析[J].海洋科学,2017,41(8):76-85,10.基金项目
浙江省自然科学基金项目(LY13D060003) [Provincial Natural Science Foundation of Zhejiang, No. LY13D06000] （LY13D060003）
