多模式SAR玉树地震协同分析
摘要
2010年4月14日发生在青海省玉树县的里氏7.1级地震对人民的生命和财产造成了严重的损害.利用宽幅、干涉和极化3种模式SAR数据,课题组进行了如下研究:①利用RADARSAT-2宽幅SAR数据,分析了玉树地震的区域地质构造和岩性分布特征;②利用ALOS/PALSAR干涉SAR数据,获取同震形变场,结合区域地质背景分析了形变程度以及空间分布;③利用极化SAR数据,采用H-α-p方法提取地震造成的玉树县城倒塌建筑物空间分布,并分析了建筑物的倒塌原因.研究证明了多模式SAR在地震灾情协同分析与评价中的有效性和重要潜力.
引文
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2顾瑾萍.青海玉树7.1级强震地震地质构造背景.http://www.csi.ac.cn/manage/
3陈立春,王虎,冉永康,等.玉树MS7.1级地震地表破裂与历史大地震.科学通报,2010,55:1200—1205
4陈运泰.玉树地震震源机制和破裂过程快报第四版.http://www.csi.ac.cn/manage/html/
5郭华东.雷达对地观测理论与应用.北京:科学出版社,2000
6Guo H D,Liao J J,Wang C L,et al.Use of multifrequency,multipolarization shuttle imaging radar for volcano mapping in the Kunlun mountains of western China.Rem Sens Environ,1997,59:364—374
7Guo H D,Zhu L P,Shao Y,et al.Detection of structural and lithological features underneath a vegetation canopy using SIR-C/X-SAR data in Zhao Qing test site of southern China.J Geophys Res,1996,101:23101—23108
8邓起东,冉勇康,杨晓平.中国活动构造图.北京:地震出版社,2007
9Massonnet D,Rossi M,Carmona C,et al.The displacement field of the landers earthquake mapped by radar interferometry.Nature,1993,364:138—142
10李正红.The13April2010MW6.9Yushu(Qinghai,China)Earthquake from InSAR observations.http://web2.ges.gla.ac.uk/～zhli/Qing-hai_Yushu_EQ.htm
11朱建军.基于InSAR的青海玉树地震同震形变场.http://ipge.its.csu.edu.cn/chs/Default/NewsDetail.aspxID=81
12Ainsworth T L,Schuler D L,Lee J S.Polarimetric SAR characterization of man-made structures in urban areas using normalized circu-lar-pol correlation coefficients.Rem Sens Environ,2008,112:2876—2885
13Cloude S R,Pottier E.A review of target decomposition theorems in radar polarimetry.IEEE Trans Geosci Rem Sens,1996,34:498—518
14Cloude S R,Pottier E.An entropy based classification scheme for land applications of polarimetric SAR.IEEE Trans Geosci Rem Sens,1997,35:68—78
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