| 南海海啸在泰国湾海域的共振响应 |
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| 引用本文： | 胡乔辉,王培涛,王岗.南海海啸在泰国湾海域的共振响应[J].海洋工程,2019,37(2):84-95. |
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| 作者姓名： | 胡乔辉 王培涛 王岗 |
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| 作者单位： | 河海大学海岸灾害及防护教育部重点实验室;国家海洋环境预报中心 |
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| 基金项目： | 国家重点研发计划资助 (2017YFC1404205)；国家自然科学基金面上项目（51579090） |
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| 摘 要： | 马尼拉海沟具备引发地震海啸的条件,是南中国海主要的潜在海啸发生区。南中国海西南部泰国湾海域和纳土纳海域地形复杂、多独立的半封闭水域,海啸波极易在该区域形成水波共振,加剧其灾害影响。采用COMCOT海啸模型模拟了马尼拉海沟断裂带发生9.3级地震时引发海啸的长时间传播过程,并基于水波共振理论分析其在不同尺度下的共振特性。结果表明,海啸波在曼谷湾至邦加—勿里洞岛间引起了明显的纵向第一、二模态(3 360.0 min、1 440.0 min)水波共振,在泰国湾至邦加—勿里洞岛之间引起了明显的纵向第二、三、四模态(775.4 min、560.0 min、373.3 min)共振,而在泰国湾至印度尼西亚沿岸引起了明显的纵向第二、三、五、七模态(1 008.0 min、630.0 min、373.3 min、252.0 min)水波共振。此外,海啸波不仅在泰国湾引起了明显的纵向第一、三、四模态(560. 0 min、252. 0 min、179. 4 min)共振,还在其横向出现了明显的第一、二、三模态(480.0 min、252.0 min、179.4 min)共振。
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| 关 键 词： | 马尼拉海啸 水波共振理论 泰国湾 港湾共振 数值模拟 |
Response of the Gulf of Thailand to tsunami generated in South China Sea |
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| HU Qiaohui,WANG Peitao and WANG Gang.Response of the Gulf of Thailand to tsunami generated in South China Sea[J].Ocean Engineering,2019,37(2):84-95. |
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| Authors: | HU Qiaohui WANG Peitao and WANG Gang |
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| Institution: | Key Laboratory of Coastal Disaster and Defence (Hohai University), Ministry of Education, Nanjing 210098, China,National Marine Environmental Forecasting Center, Beijing 100081, China and Key Laboratory of Coastal Disaster and Defence (Hohai University), Ministry of Education, Nanjing 210098, China |
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| Abstract: | The Manila Trench is considered as the main potential tsunami source in the South China Sea. There are many complex and independent semi-enclosed water areas in the Gulf of Thailand and Natuna sea, southwest of the South China Sea. Tsunamis can be easily amplified due to the resonance, which further strengthens the disaster effects. In this paper, COMCOT is used to simulate the long time propagation of the tsunami caused by the 9.3 magnitude earthquake in the Manila trench subduction zone, and the resonant characteristics in different scales are analyzed using the wave resonance theory. The results show that the tsunami wave can evidently generate the first and second longitudinal modes between the bay of Bangkok and Bangka Belitung Islands, the second, third and fourth longitudinal modes between the Gulf of Thailand and Bangka Belitung Islands, the second, the third, fifth and seventh longitudinal modes between the Gulf of Thailand and near the shore of Indonesia. Furthermore, there are not only the evident first, third and fourth longitudinal modes in the Gulf of Thailand but also the first, second and third transverse modes. |
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| Keywords: | Manila tsunami the wave resonance theory the Gulf of Thailand harbour resonance numerical simulation |
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