- 责任者：Zhao Chaoying (School of Geological Engineering and Geomatics ; Chang’an University ; Xi’an 710054 ; China) ; Zhang Qin
- 刊名：Journal of Engineering Geology
- 出版年：2011
- 卷期：19(1)
- 关键词：地裂缝 ; ground fissures ; 合成孔径雷达 ; synthetic aperture radar ; 山西 ; Shanxi Province
- 页码：p.70-75
- 图表：5 illus., 9 refs.
- 分类号：1800
- issnNo：ISSN1004-9665
- isbnNo：CN11-3249/P
quot;MARGIN: 0cm 0cm 0pt" class=MsoNormal>Recently, as investigated, the ground fissure in Qingxu of Shanxi Province is one of the most active fissures in Fenwei Basin. In order to monitor the deformation of the Qingxu fissure and to deduce its cause, this paper uses the differential SAR interferometry technique (D-InSAR). In order to mitigate the temporal decorrelation over the farm region, two scenes of Envisat ASAR data with only 70 days intervals in 2007 are selected and used to generated surface deformation results. Firstly, a subsidence of cone shape is detected as an ellipsoid with 2 km long axis located in the south of Qingxu fissure. Then two profiles paralleling to the fissure and eight profiles normal to the fissure are taken to analyze the spatial characteristics of the fissure. It is found that the main deformation area is located in the south of the fissure. Besides, it is found that the activity of ground fissure in different areas is greatly different. quot;mso-spacerun: yes"> Finally, the Jiaocheng fault is deduced to control the location of Qingxu fissure. xml:namespace prefix = o ns = "urn:schemas-microsoft-com:office:office" />