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浙江大学学报(工学版)
浙江大学学报(工学版)  2018, Vol. 52 Issue (8): 1605-1615    DOI: 10.3785/j.issn.1008-973X.2018.08.021
土木与水利工程     
杭州湾-长江口海域岸线变化对杭州湾潮汐特征的影响
李莉1,2, 操进浪1, 贺治国1,2, 姚炎明1,2
1. 浙江大学 海洋学院, 浙江 舟山 316012;
2. 国家海洋局第二海洋研究所 卫星海洋环境动力学国家重点实验室, 浙江 杭州 310058
Impacts of coastline changes of Hangzhou Bay-Changjiang Estuary on tidal dynamics in Hangzhou Bay
LI Li1,2, CAO Jin-lang1, HE Zhi-guo1,2, YAO Yan-ming1,2
1. Ocean College, Zhejiang University, Zhoushan 316012, China;
2. State Key Laboratory of Satellite Ocean Environment Dynamics, Second Institute of Oceanography, Hangzhou 310058, China
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摘要：

基于非结构化网格有限体积海洋模型（FVCOM），建立杭州湾海域高分辨率三维水动力数值模型，模拟结果与观测数据吻合较好.采用1974年、2005年和2016年代表年份的岸线数据建立模型，研究杭州湾海域长时间、大区域的岸线变化对其水动力特征的影响.结果显示，1974—2016年，杭州湾M2分潮振幅增大的幅度从金山到尖山逐渐增加，M4分潮振幅在尖山附近增加最大；潮能通量在金山到澉浦之间减小最大；尖山断面和杭州湾口涨潮占优趋势增加，乍浦断面和金山断面之间涨潮占优趋势减弱.岸线缩窄通过影响浅化效应和底部耗散项，影响杭州湾分潮振幅、相位及潮汐不对称等潮汐特征.
Abstract:

The impacts of coastline changes on tidal dynamics in Hangzhou Bay were examined using the finite volume community ocean model (FVCOM). The modeled results matched well with the observation. Numerical tests were designed to examine the changes of hydrodynamics due to changes of coastlines in 1974, 2005, and 2016. Simulation showed that the increase of M2 amplitude gradually increased from Jinshan to Jianshan. The maximum increase of M4 amplitude occurred near Jianshan. The maximum decrease of tidal energy flux occurred between Jinshan to ganpu.The flood dominance was amplified at the mouth of bay and near Jianshan station, but dampened between Zhapu and Jinshan. The changes of coastline modified the tidal amplitude, phase and tidal asymmetry through affecting shoaling effect and bottom dissipation.
收稿日期: 2017-05-10 出版日期: 2018-08-23
CLC:  TV148  
基金资助:

浙江省自然科学基金资助项目（Q16D060002）；国家自然科学基金资助项目（41606103）；卫星海洋环境动力学国家重点实验室开放基金资助项目（SOED1512）
作者简介: 李莉(1982-),女,讲师,从事近海水沙数值模拟研究.orcid.org/0000-0003-3373-2999.E-mail:lilizju@zju.edu.cn
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引用本文:

李莉, 操进浪, 贺治国, 姚炎明. 杭州湾-长江口海域岸线变化对杭州湾潮汐特征的影响[J]. 浙江大学学报(工学版), 2018, 52(8): 1605-1615.

LI Li, CAO Jin-lang, HE Zhi-guo, YAO Yan-ming. Impacts of coastline changes of Hangzhou Bay-Changjiang Estuary on tidal dynamics in Hangzhou Bay. JOURNAL OF ZHEJIANG UNIVERSITY (ENGINEERING SCIENCE), 2018, 52(8): 1605-1615.

链接本文:

http://www.zjujournals.com/eng/CN/10.3785/j.issn.1008-973X.2018.08.021    或    http://www.zjujournals.com/eng/CN/Y2018/V52/I8/1605

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