雷达干涉测量在地震形变研究中的应用  

Application of DInSAR in Earthquake Deformation Studies

作　　者：孟国杰[1] Linlin Ge 伍吉仓[3] 戴娅琼[1] 

机构地区：[1]中国地震局地震预测研究所,北京100036 [2]School of Surveying and Spatial Information Systems,University of New South Wales [3]同济大学测量与国土信息工程系,上海200092

出　　处：《地震》2012年第2期105-113,共9页Earthquake

摘　　要：合成孔径雷达干涉测量(DInSAR)以厘米乃至毫米的精度和很大的空间覆盖范围实现地表形变观测,它是进行地壳形变观测的重要手段,在地震形变研究中发挥着越来越重要的作用。本文首先简要给出了微波雷达测量的特征,阐述了雷达图像数据处理的基本方法,分析了InSAR技术的主要影响因素和观测精度。结合较新的研究成果,分析了雷达遥感图像研究地震形变的方法,讨论了DInSAR在震间、同震和震后形变观测研究中的最新进展。同时讨论了目前我国应用DInSAR研究地震形变中面临的主要问题,最后阐述了应用雷达干涉测量研究地震形变的发展趋势。Differential synthetic aperture radar interferometry （DInSAR） can realize earth surface deformation observation with precision of cm order and large spatial coverage. It has become an important tool for measuring crust deformation, and has been playing an in- creasingly prominent role in measuring earthquake deformation. In this paper, we present a summary of the features of microwave surveying, explain basic radar image processing method and analyze the main factors influencing the precision of InSAR technique. In view of the most recent rsults, we analyzed several approaches of earthquake deformation stud- ies using radar remote-sensing images, and discussed advances in interseismic, coseismic and post-seismic deformation observation and research. We also discussed main difficulties in applying DInSAR to earthquake deformation research in China.

关 键 词：雷达干涉测量 地震形变 震间滑动 地震监测 

分 类 号：P315.7[天文地球—地震学]