The Calculation and Analysis of the Co-seismic Deformation Field of Yutian Ms 7.3 Earthquake Basing on the Ascending and Descending Orbit ASAR Data
HONG Shun-ying 1,2， SHEN Xu-hui 2， SHAN Xin-jian 1， LIU Zhi-rong 3， DAI Ya-qiong 2, JING Feng 2
1.Institute of Geology, China Earthquake Administration, Beijing 100029, China; 2.Institute of Earthquake Science, China Earthquake Administration, Beijing 100036, China; 3.Institute of Disaster Prevention Science and Technology, Beijing 101601, China
The Differential Interferometric Synthetic Aperture Radar (D-InSAR) based on the ascending and descending orbit data can better reveal the feature of coseismic deformation fields. With the ASAR data from European Space Agency (ESA) and two-pass D-InSAR measurement, this paper obtained both ascending orbit and descending orbit coseismic deformation fields of Yutian Ms7.3 Earthquake. The results show that the max LOS uplifting value is about +13.3 cm and the subsiding value is about -82.0 cm in the ascending-orbit coseismic deformation field, and the max LOS uplifting value is about +36.5 cm and the subsiding value is about -66.5 cm in the descending-orbit coseismic deformation field. The Yutian Earthquake is mainly rupturing along the NNE-trending normal fault with a little left-striking, the northwest plate is the hanging-wall (subsiding) of the normal fault, and the southeast plate is the footwall (uplifting) of the normal fault. The coseismic deformation fields of ascending and descending orbits are different from each other in some aspects, but their variable tendencies and characteristics are similar, and the difference is mainly due to the two different observation modes.
洪顺英, 申旭辉, 单新建, 刘智荣, 戴娅琼, 荆凤.
基于升降轨ASAR的于田Ms 7.3级地震同震形变场信息提取与分析[J]. 国土资源遥感, 2010, 22(4): 98-102.
HONG Shun-Ying, SHEN Xu-Hui, SHAN Xin-Jian, LIU Zhi-Rong, DAI Ya-Qiong, JING Feng.
The Calculation and Analysis of the Co-seismic Deformation Field of Yutian Ms 7.3 Earthquake Basing on the Ascending and Descending Orbit ASAR Data. REMOTE SENSING FOR LAND & RESOURCES, 2010, 22(4): 98-102.
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2010, Vol. 22 
