| 精细化地震海啸波流实时预警系统研究与应用 |
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| 引用本文： | 任智源,侯京明,王培涛,李涛,原野,赵联大.精细化地震海啸波流实时预警系统研究与应用[J].海洋学报,2019,41(9):145-155. |
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| 作者姓名： | 任智源 侯京明 王培涛 李涛 原野 赵联大 |
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| 作者单位： | 国家海洋环境预报中心,北京100081;自然资源部海啸预警中心,北京100081;国家海洋环境预报中心,北京,100081 |
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| 基金项目： | 国家重点研发计划（2016YFC1402000）；海洋工程国家重点实验室（上海交通大学）开放课题（1604）；留学人员科技活动项目择优资助。 |
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| 摘 要： | 基于Okada模型和非线性浅水波模型，结合高精度多层嵌套网格针对我国浙江沿海的温州和台州地区建立了越洋–近海–局部的精细化地震海啸波流实时预警系统，近岸的分辨率为900 m。该预警系统包括了并行化的数值计算模块，基于Python 2D绘图库的计算结果可视化处理模块，以及通过Python语言将所有经过数值计算的图形与动画产品集成在一个网页上的产品集成模块。一旦地震发生，该系统可根据地震的震源参数信息在10 min内完成数值计算、可视化处理，以及产品集成。选取2011年日本东北9.0级地震海啸结合实测数值对该系统进行模拟验证，进一步应用该系统模拟计算了日本南海海槽和琉球海沟潜在极端海啸的影响规律。结果表明，该预警系统可有效地提高地震海啸实时预警的时效性和准确度，为海啸的预警、减灾，以及辅助决策提供科学依据。
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| 关 键 词： | 地震海啸 预警系统 精细化预报 数值模拟 |
| 收稿时间： | 2018/9/12 0:00:00 |
| 修稿时间： | 2018/12/11 0:00:00 |
Study and application of the refined tsunami real time warning system including tsunamigenic wave and current |
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| Ren Zhiyuan,Hou Jingming,Wang Peitao,Li Tao,Yuan Ye and Zhao Lianda.Study and application of the refined tsunami real time warning system including tsunamigenic wave and current[J].Acta Oceanologica Sinica (in Chinese),2019,41(9):145-155. |
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| Authors: | Ren Zhiyuan Hou Jingming Wang Peitao Li Tao Yuan Ye and Zhao Lianda |
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| Institution: | 1.National Marine Environmental Forecast Center, Beijing 100081, China2.National Tsunami Warning Center, Ministry of Natural Resources, Beijing 100081, China |
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| Abstract: | Based on the Okada model, nonlinear shallow water equation, and nested grid with high resolution, a real-time tsunami warning system of transoceanic-offshore-local is built for Wenzhou and Taizhou''s coastal region of Zhejiang Province. The grid resolution of the refined layer is 900 m. The tsunami warning system includes parallel numerical calculation module, visualization module based on Python 2D library (matplotlib), and product integration module which integrates all numerical graphical products on a web page by Python. Once an earthquake occurs, the system could complete the numerical calculation, visualization processing and graphic product integration within 10 minutes. Firstly, the system has been validated by the 2011 Japan tsunami with the magnitude of Mw 9.0. Then, the extreme potential tsunami from Nankai Trough and Okinawa Trough is simulated by the system in terms of tsunami amplitude and currents. The results show that the tsunami warning system can improve the efficiency and accuracy of tsunami early warning in the coastal region, and provide a scientific basis for tsunami early warning, disaster reduction and decision supporting. |
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| Keywords: | earthquake tsunami tsunami warning system refined forecast numerical simulation |
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