文章基本信息

标题：Estimation of Source Parameters of 2003 Bam (Iran) Earthquake from EnviSat SAR Images Using Genetic Algorithm Technique
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作者：S. Vajedian ; M. Saradjian ; M.A Sharifi 等
期刊名称：ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences
印刷版ISSN：2194-9042
电子版ISSN：2194-9050
出版年度：2008
卷号：XXXVII-B8
页码：1281-1286
出版社：Copernicus Publications
摘要：In this paper, we analyze synthetic aperture radar (SAR) interferograms derived from Envisat radar data. Use of interferograms from both ascending and descending satellite passes enables us to indicate regions of surface and near-surface slip which is used to modeling procedure. Also we used azimuth offset (AZO) data as additional data. This is horizontal displacement information for earthquake that is obtained with sub pixel matching of SAR amplitude images. Combining the interferometry with subpixel matching of the SAR amplitude images allows us to obtain the full three-dimensional displacement field for the earthquake. We inverted this field to gain insight into the fault geometry and slip distribution of the rupture. Our results indicate that the best fitting dislocation model is a steeply strike-slip fault with maximum of ~3 m that has a size of 12.3 by 8.3 km and strike 355. from north
关键词：Satellite Remote Sensing; Earthquakes; Spatial Modeling; Disaster; SAR Image; Radar; Interferometric SAR (InSAR)