| 摘要: |
| 台风浪的研究对于船舶航行、港口、海洋和近岸建筑物的安全有着重要的现实意义。应用经验公式(MEF)和大风风圈反推(MGCR)两种方法计算最大风速半径, 并基于Jelesnianski2 型风场模式、藤田气压模式导出的风场模式、藤田气压场和第三代深海波浪模型(WAVEWATCH Ⅲ)进行了台风Winnie引起的台风浪的后报, 将后报值与实测值进行了详细的比较和分析。结果表明: 台风期间, MEF 模拟出的西北太平洋海域风浪场变化合理, 数值模拟结果与实测资料吻合良好, 3 个波浪测站的有效波高对比误差约为10%, 而MGCR 模拟结果误差偏大。因此, MEF 的模拟结果能够为船舶、海洋与海岸工程的设计提供科学的依据。 |
| 关键词: 最大风速半径 台风9711 数值模型 台风浪 后报 WAVEWATCH Ⅲ |
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| 基金项目:国家重大科技专项“船舶数字化智能设计系统”; 教育部留学回国人员科研启动基金; 河口海岸动力沉积和动力地貌综合国家重点实验室基金资助项目 |
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| Numerical simulation of typhoon waves in Northwest Pacific Ocean |
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YANG Yang,ZHU Zhi-xia,ZHOU Ke
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| Abstract: |
| The research of stormy waves caused by typhoon has significant impact on navigation, harbor, offshore and nearshore engineering. The radius of maximum winds is calculated by method of experiential formula(MEF)or method of gale cycle retrieval (MGCR), and the parameter typhoon wind model(PTWM), which is derived from Jelesnianski2 wind formula and Fujita pressure formula(FPF), FPF and the third-generation deep-sea wave model(WAVEWATCH Ⅲ) are applied to the storm wave hindcast induced by the typhoon Winnie. The comparisons between the simulation results and observation data indicate that: during the typhoon Winnie, the distribution of
modeled storm-waves in Northwest Pacific Ocean, which is simulated by MEF, is more reasonable. Comparing the significant wave heights calculated and measured in three offshore stations, the error is about 10%, and it was shown that MEF is better than MGCR. So the modeled results, which are derived from the compound wind field and WAVEWATCH Ⅲ, can serve for scientific reference of naval architecture, ocean engineering, and coastal engineering. |
| Key words: radius of maximum winds Typhoon 9711 numerical simulation typhoon waves hindcast WAVEWATCH Ⅲ |
