Spatial Analysis of Coseismic Displacement Field of the Wenchuan M_s 8.0 Earthquake Derived Using D-Insaroft-com:office:office" />

• 责任者：Qu Chunyan (State Key Laboratory of Earthquake Dynamics ; Institute of Geology ; China Earthquake Administration ; Beijing 100029 ; China) ; Shan Xinjian
• 刊名：Seismology and Geology
• 出版年：2010
• 卷期：32(2)
• 关键词：合成孔径雷达 ; synthetic aperture radar ; 地形变 ; ground deformation ; 四川 ; Sichuan Province
• 页码：p.175-190
• 图表：7 illus., 1 table, 21 refs.
• 分类号：1600
• issnNo：ISSN0253-4967
• isbnNo：CN11-2192/P

The authors used the radar data from the satellite ALOS/PALSAR of oft-com:office:smarttags" />Japan and the differential interferometric synthetic aperture radar (D-InSAR) technology to derive the coseismic displacement field produced by the M_S 8.0 Wenchuan earthquake. Based on processing SAR data of 7 tracks and 112 scenes by the two-pass method, the authors obtained the interferometric map of 450 km×450 km covering the causative fault and determined the distribution range of incoherent zones.  The result shows that the Wenchuan M_S 8.0 earthquake has produced a vast area of surface deformation along the Yingxiu-Beichuan Fault, primarily concentrated in a near-field range of 100 km wide on the both sides of the causative fault.