董杰,文汉江,刘焕玲

• 1:中国测绘科学研究院

摘要(Abstract)：

针对地球内部变形的理论研究缺失,该文基于半无限空间的地球模型,研究了2015年尼泊尔地震M_w7.9产生的地球内部不同深处(地表以及地下10、20、30、50、100和300km)的同震位移变化,研究区域内的地表最大垂直位移有0.779 0m,向下的最大垂直位移是-0.383m,南北向的水平位移在断层处产生集中挤压,最大值有1.460 0m,这与尼泊尔境内的GPS观测结果比较吻合;地下10km处的位移比地表的变形要大很多;地球深部的位移结果逐渐变小,并且100km处的水平位移方向也发生了巨大变化。地球内部位移变化结果显示:地球浅部位移与地表的走向趋势一致但振幅不同,地表的位移并不是最大的,接近震源处的变形最大。

关键词(KeyWords)： 地球内部变形;半无限空间;尼泊尔地震;同震位移

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金项目(41604067);; 中国博士后基金项目(119103S268);; 高分遥感测绘应用示范系统(一期);; DAAD资助项目(57421148)

作者(Author): 董杰,文汉江,刘焕玲

DOI: 10.16251/j.cnki.1009-2307.2019.06.007

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