【作者】 刘桦； 任智源； 赵曦； 王本龙；

【Author】 LIU Hua;RAN Zhi-yuan;ZHAO Xi;WANG Ben-long;MOE Key Laboratory of Hydrodynamics,Shanghai Jiao Tong University;

【机构】 上海交通大学水动力学教育部重点实验室；

【摘要】 针对南海马尼拉海沟断裂带单元板块发生单位滑动所引发的海啸进行数值模拟,构建了相应的海啸源数据库;发展了基于多个浮标监测数据和最小二乘法的南海马尼拉海沟潜在震源的海啸反问题预警方法,并与这个问题的计算结果进行了比较,验证了方法的有效性;提出了南海海啸预警浮标的优先布置方案建议;首先给出了南海马尼拉海沟潜在震源激发海啸的一种快速预警方法。更多还原

【Abstract】 For the potential earthquake source in Manila Trench,the numerical model is used to simulate the elementary wave fields triggered by unit sources of potential tsunami source with unit slip.Using the elementary wave fields as the tsunami database,an inversion method for determining the plate slip based on multi-buoy measurements and the least squares method is adopted to compute the time series of surface elevation at the given locations around the coasts in South China Sea.Comparisons with direct computation results are used to validate the inversion method.Because of the expensive cost of deploying a buoy in ocean,the priority buoy is given.Based on characteristics of fault distribution in Manila Trench,a fast early warning method for potential tsunami in Manila Trench is proposed at first.更多还原