利用Sentinel-1A SAR影像监测尼泊尔“4·25”地震变形  

Seismic deformation monitoring of Nepal April 25 earthquake using Sentinel-1A SAR data

作　　者：黄其欢[1] 夏磊凯 刘学敏[1] 徐晶鑫 HUANG Qihuan XIA Leikai LIU Xuemin XU Jingxin(School of Earth Sciences and Engineering, Hohai University, Nanjing 210098, China)

机构地区：[1]河海大学地球科学与工程学院,江苏南京210098

出　　处：《河海大学学报（自然科学版）》2016年第5期427-431,共5页Journal of Hohai University(Natural Sciences)

基　　金：国家自然科学基金(41304025);江苏省自然科学基金(BK20130831)

摘　　要：为利用新一代欧洲太空局SAR系统Sentinel-1A卫星获取大面积地震变形数据,对其监测模式和数据特点进行研究,给出针对TOPSAR成像干涉数据处理的拼接方法,并利用Sentinel-1A数据获取尼泊尔"4·25"地震区域约160 km×180 km的地表形变。结果显示,地震导致的雷达视线向相对变形最大达2 m。To obtain large-area seismic deformation,the imaging mode and data characteristics of ESA＇s new generation Sentinel-1A SAR were studied. The method for processing interferometric data from TOPSAR images is presented in this paper. Based on data from the Sentinel-1A,an interferogram covering an area of 160 km×180 km in the region of the Nepal April 25 earthquake was generated. The results show that the maximal relative deformation in the line of sight direction reaches about 2 m.

关 键 词：Sentinel-1A 尼泊尔“4·25”地震 大面积地震变形 变形监测 In SAR 

分 类 号：TP23[自动化与计算机技术—检测技术与自动化装置]