一次北印度洋海啸的数值模拟研究  

Numerical simulation of a tsunami in the north Indian Ocean

作　　者：陈飞[1] 张芳苒[1] 薛彦广[1] 白志鹏[1] 王颖[1] 

机构地区：[1]中国人民解放军61741部队

出　　处：《海洋预报》2014年第2期20-25,共6页Marine Forecasts

摘　　要：对2012年4月11日(世界时)发生在北印度洋的一次地震海啸进行了模拟研究,给出了海啸模拟所需地震参数的获取途径,以及海啸波初始场的建立方法,分析了该海啸过程最大波幅分布和海啸波传播波时分布,并与测站实测值进行了对比。结果表明,海啸波的能量传播方向存在不均匀性,能量传播集中方向的波幅较大,具有更强的危害性。A basin-wide tsunami event occurred on April 11 th, 2012 （UTC） in the North Indian Ocean was inves- tigated by numerical approach in this paper. The source to retrieve earthquake focal mechanism was identified, which facilitate the generation of initial sea surface altered by underwater seismic displacement. The maximum tsunami wave amplitudes and tsunami travel time were computed and compared with coastal gauges. Modeling results suggested that the tsunami energy could be intensified along its propagation path, which would impose greater danger to opposite coastal areas.

关 键 词：COMCOT模式 海啸 浅水方程组 浅水效应 

分 类 号：P731.25[天文地球—海洋科学]