| 风暴潮引起的地形诱导波的理论与数值对比研究 |
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| 引用本文： | 汪景庸.风暴潮引起的地形诱导波的理论与数值对比研究[J].海洋科学,1985,9(1):1-6. |
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| 作者姓名： | 汪景庸 |
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| 作者单位： | 山东海洋学院 |
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| 摘 要： | 近年来,在有关风暴潮的预报方法及其动力机制的研究中,各种波的传播日益受到重视。本文用数值模型和一个简化的理论模型,对于地形诱导波的特性及其传播作了比较研究。结果表明,在我们的数值模拟结果所观察到的波中,包括着地形诱导波,而且它对风暴潮的动力过程有显著影响。
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A COMPARATIVE STUDY OF THEORETICAL AND NUMERICAL SIMULATIONS OF TRAPPED WAVES INDUCED BY STORM SURGES |
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| Abstract: | The following characteristics of this process have been determined. 1 ) Typhoon approaching the coastline at about 30° causes Waves With isochrones of peak surge elevations parallel to the coastline. 2 ) If waves with specific parameters enter the analysis area through the southern boundary, then they are propagated northwards with uniform phase speed, but not in the off-shore direction. 3 ) Initial disturbances in the middle of the analysis area near the coast lead to waves propagating in all directions. Maximum elevations decay much quicker to the east than to the south or the north. 4 ) The agreement between the phase speed deduced from an theoretical analysis and the numerical model is good. |
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