Discussion About Tsunami Interaction with Fringing Coral Reef
Discussion About Tsunami Interaction with Fringing Coral Reef
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关于海啸与边缘珊瑚礁相互作用的讨论
DOI：
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发表时间：
2014
期刊：
影响因子：
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通讯作者：
N. Zahibo
中科院分区：
文献类型：
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作者：
J. Roger;Bernard Dudon;Y. Krien;N. Zahibo
最近发生的灾难性海啸表明，现在比以往任何时候都更有必要评估所有沿海社区的海啸危害。事实上，面对过去几十年来低洼沿海地区人口的危险增长，这与抵御海啸等海上袭击的自然防御能力的下降直接相关，并考虑到大多数相关国家的经济，应迅速找到解决方案来保护这些人口和/或减轻危害。这样，最近的研究和事件后的实地观察强调了珊瑚礁所发挥的保护作用及其破坏对海啸幅度的影响。在本研究中，使用非线性浅水方程数值模型（NAMI-DANCE 代码）讨论了先前关于边缘珊瑚礁几何形状对海啸振幅影响的结果。为此，我们准备了一组与真实测深剖面一致的不同的人工数字高程模型，并将模拟结果与其他作者得出的结论进行比较和讨论。
The recent catastrophic tsunamis show that it is now more than ever necessary to assess tsunami hazard for all coastal communities. In fact, facing the dangerous increase of population in low-lying coastal areas during the last decades directly linked to the reduction of the natural defences against sea assaults, including tsunamis, and considering the economy of most of the concerned countries, solutions should be found quickly to protect those populations and/or mitigate the hazard. In that way, recent studies and post-event field observations have highlighted the protective role played by coral reefs and the consequences of their destructions on the tsunami amplitudes. In this study previous results about the effect of fringing coral reef geometry on the tsunami amplitude are discussed using numerical modeling of nonlinear shallow water equations (NAMI-DANCE code). For this purpose, a set of different artificial Digital Elevation Models has been prepared in agreement with real bathymetric profiles and results of simulations are compared and discussed together with the conclusions obtained by the other authors.