| 摘要: |
| 以三维高精度潮波数值模拟为基础，运用系统分析方法和地理信息系统技术，对影响中国东部边缘海潮波系统的因素，包括入射潮波、科氏力、海区地形、岸线形状及底摩擦等，进行了模拟试验。结果表明，它们对潮波系统的模式有不同程度的作用，其中科氏力的有无、岸线形态的变化和水下地形的巨变化对潮波系统有重要影响。研究认为，中国东部边缘海潮波系统是一个海－潮相互作用的整体；在一定的入射潮波条件下，该区的海区条件、特别是岸线形态对潮波系统的模式起主要作用。 |
| 关键词: 边缘海 潮波系统机制 数值模拟 中国东部 |
| DOI：10.11693/hyhz200002008008 |
| 分类号: |
| 基金项目:国家教委优秀青年教师基金资助项目;香港政府大学基金资助，CUHK318/95H号 |
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| SIMULATION OF MECHANISMS FOR THE TIDAL WAVE SYSTEM IN MARGINAL SEAS, EASTERN CHINA |
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JIA Jian-jun1, LV Guo-nian2, SONG Zhi-yao3, LIN Hui4, QIAN Ya-dong2, CHEN Zhong-ming2
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1.Institute of Oceanology, The Chinese Academy of Sciences, Qingdao, 266071;2.Geography Science College, Nanjing Normal University, Nanjing, 210024;3.Harbor, waterway & Coast Engineering College, Hohai University, Nanjing, 210098;4.Geography Department, Hong Kong Chinese University,Hong Kong
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| Abstract: |
| Based on a three dimensional and high resolution numerical model, some factors associated with the marginal seas adjacent to eastern China (including the Bohai, Yellow and Eastern China Seas), such as the Coriolis acceleration, tide amplitude and phase on the outer boundary, seabed topography, coastline configuration, and frictional coefficient, are studied with the aid of Geographic Information System (GIS) in order to understand the respective impact of these factors upon the tidal wave system. According to the present study, moderate changes in the tide amplitude and phase on the outer boundary, the seabed topography and the frictional coefficient has little effect on the tidal wave system. However, the transformation of coastline configuration has remarkable consequences within the tidal system, and so does the tremendous changes of the seabed topography. Since in reality the input data of tide amplitude and phase, the Coriolis acceleration, the seabed topography and frictional coefficient are comparatively stable, the tidal wave system in the marginal seas adjacent to eastern China is a combined result of tide and marine environment. The marine conditions, especially the coastline configuration, are the predominated factors affecting the tidal-wave system. In a sense, the tidal amphidroms and tidal amphidromic system are controlled mainly by the coastline configuration over this region. |
| Key words: Marginal seas, Tidal wave system, Numerical simulation, Eastern China |
