The effect of giant tsunamis such as the Indian Ocean Tsunami in 2004 and the Great East Japan Earthquake Tsunami in 2011 has been devastating. In this study, a numerical simulation of the tsunami has been developed to estimate the physical characteristics of tsunamis and their effect on human society. Several laws and equations have been introduced for the simulation of tsunami propagation in the ocean, tsunami refraction, and tsunami run-up on land under a stable computational condition with acceptable accuracy. Our proposed method has been accepted as the world standard since 1997 and has been widely distributed to many countries through UNESCO.1) Computer graphic animations prepared by using the results of numerical simulation have been effectively used in public education and to increase the understanding of behaviors of the tsunami on the earth. When the numerical prediction of tsunami becomes possible with sufficient accuracy, then their results can be used to predict future damages and prevent the occurrence of a disaster. Data in the past were collected and expressed in terms of a newly introduced tsunami intensity which is related to the locally observed tsunami heights.

中文翻译：

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减轻海啸危害。

2004年的印度洋海啸和2011年的东日本大地震海啸等巨大海啸的影响令人震惊。在这项研究中，已经开发了海啸的数值模拟以估计海啸的物理特征及其对人类社会的影响。在稳定的计算条件下，以可接受的精度模拟海洋中的海啸传播，海啸折射和海啸上升，引入了一些定律和方程式。自1997年以来，我们提出的方法已被接受为世界标准，并已通过联合国教科文组织广泛分发给许多国家。1）利用数值模拟结果制作的计算机图形动画已有效地用于公众教育，并加深了人们对地球海啸行为的了解。当以足够的精度进行海啸的数值预测成为可能时，其结果可用于预测未来的损失并防止灾难的发生。收集过去的数据并以新引入的海啸强度表示，该强度与当地观测到的海啸高度有关。