- 责任者：Jiang Wenliang (Institute of Crustal Dynamics ; China Earthquake Administration ; Beijing 100085 ; China) ; Liu Bin
- 刊名：Acta Seismologica Sinica
- 出版年：2011
- 卷期：33(4)
- 关键词：汶川地震2008 ; Wenchuan earthquake 2008 ; 地形变 ; ground deformation ; 龙门山断裂带 ; Longmenshan Fault Zone
- 页码：p.483-491
- 图表：illus., 1 table, 27 refs.
- 分类号：0500
- issnNo：ISSN0253-3782
- isbnNo：CN11-2021/P
ENVISAT ASAR images were used to measure coseismic displacement field of the 2008 Wenchuan earthquake in both the line of sight and azimuth directions of the sensor. Cross-correlation method was utilized to match the images before and after the earthquake in precision of sub-pixel level. And then, the authors analyzed surface rupture geometry and motion feature of the Longmenshan fault zone.Two large scale surface ruptures are identified on the map. The southwest part of Beichuan—Yingxiu fault is characterized by thrust-dominant motion, while the northeast part shows right-lateral slip. The Guanxian—Jiangyou fault is a thrust-dominant fault.This result is in well accordance with InSAR/GPS and field surveys and reveals coseismic displacement features of the Wenchuan earthquake from a new sight.