利用GNSS高频数据分析研究大震同震响应  

Analyze Co-Seismic Deformation of Massive Earthquake by High-Rate GPS Data of Shaanxi CORS

作　　者：丁晓光[1,2] 苏利娜[1] 张永奇[1] 韩晓飞[1] 

机构地区：[1]陕西省地震局,陕西西安710068 [2]中国地震局地质研究所,北京100029

出　　处：《全球定位系统》2013年第5期72-76,共5页Gnss World of China

基　　金：中国大陆综合地球物理场观测-鄂尔多斯地块南缘大地测量观测与强震危险性研究(批准号:201208009-13);陕西省地震局青年基金课题(批准号:2012008)

摘　　要：在介绍GPS单历元定位方法的基础上,利用陕西GNSS连续站的高频数据,通过高精度数据处理软件GAMIT/GLOBK的运动学定位模块Track,计算得到2011年3月11日日本东海M9.0级地震以及2012年4月11日印尼苏门答腊M8.6级地震时连续运行观测站的水平同震变形。解算结果表明:测站的同震变形能够体现地震波的传播过程,并在地震波特性和地震类型判定方面具有一定帮助。Based on the introduction of the single epoch GPS positioning method, the high-rate GPS data of Shaanxi continues observation stations are calculated by TRACK, the kinematic module of the GPS data processing software GAMIT/GLOBK. The co-seismic de- formation of continuous observation stations caused by Mar. 11,2011, M9.0 Japan East-sea earthquake are obtained, besides another massive earthquake, Apr. 11, 2012, MS. 6 Indone- sia Sumatra earthquake, are obtained too. The results showed that the co-seismic deforma- tion can make a description of the spread of the seismic wave; furthermore, there is impor rant research significance at the judgment of earthquake focal mechanism and the characteris- tic of the seismic wave.

关 键 词：TRACK 动态定位 GNSS连续站 同震响应 

分 类 号：P228.4[天文地球—大地测量学与测量工程]