摘要
2001年11月14日发生的昆仑山口西8.1级大地震造成了长度近400km的破裂带,以断裂带最西端的震中地区为实验区,选取多时相ERS-2SAR影像和航天飞机SRTMDEM数据,采用两路和三路雷达差分干涉处理方法分别提取了地震形变信息。结果表明:在地形起伏大的高山地区,采用外部DEM的两路差分方法可以取得更好的结果;昆仑山地震造成的太阳湖南侧断裂带为左旋走滑。
The Ms8.1 earthquake occured in the west to Kunlun mountain pass in 2001 created a fault of about 400 km. The epicenter region which is the most west part of the fault is selected as studied area. Using the Multitemporal European ERS-2 SAR imagery and shuttle-based SRTM DEM data, the surficial displacements are estimated with two-pass and three-pass DINSAR methods respectively. The comparison between the two results shows that over fluctuating mountains two-pass DINSAR with external DEM might obtain better results than three-pass DINSAR method and the fault along the south side of Taiyang lake formed from the Ms8.1 earthquake is left-lateral.
出处
《大地测量与地球动力学》
CSCD
北大核心
2007年第3期12-17,共6页
Journal of Geodesy and Geodynamics
基金
科技部社会公益重点项目"2006-2020年中国地震危险区与地震灾害损失预测研究"子课题"大地形变在未来十五年地震预测中的应用研究"(2004DIA3J010)
山东省"基础地理信息与数字化技术"重点开放实验室基金(SD040210)
关键词
雷达差分干涉测量
三路差分
两路差分
地壳形变
昆仑山8.1级地震
DINSAR （ Differential SAR Intereferometry）, three-pass DINSAR, two-pass DINSAR, crustal deformation, Ms8. 1 Kunlun mountain earthquake
