2011年3月11日日本地震海啸数值模拟
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摘要
为了有效利用数值模拟的方法来更好的预测海啸,利用美国国家地质调查局(US Geological Survey,USGS)给出的震源机制及断层参数,对日本仙台地震海啸进行数值模拟,运用模拟结果对沿岸海啸灾害分布进行分析,以期给出更为合理的海啸预警方案.数值模型由震后表面变形模拟和基于二维浅水波方程的海啸传播程序两部分组成,模拟结果表现了海啸传播过程的特征,与岸边观测点对于海啸到达时间及波高的记录基本吻合.使用该模型在地震发生后对于海啸到达的地区及其波高进行预测,可以给出更准确的海啸预警,降低海啸对人类造成的损失.
引文
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