An Experimental Study of Monitoring Fault Crustal Deformation Using PS-InSAR Technology

doi:10.11867/j.issn.1001-8166.2012.04.0452

Advances in Earth Science ›› 2012, Vol. 27 ›› Issue (4): 452-459. doi: 10.11867/j.issn.1001-8166.2012.04.0452

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An Experimental Study of Monitoring Fault Crustal Deformation Using PS-InSAR Technology

Xu Xiaobo ^1,2，Qu Chunyan ¹，Shan Xinjian ¹，Ma Chao ²，Zhang Guifang ¹，Meng Xiujun ^1,2

1.State Key Laboratory of Earthquake Dynamics, Institute of Geology, China Earthquake Administration, Beijing100029, China；2.School of Surveying and Land Information Engineering, He′nan Polytechnic University, Jiaozuo454003,China

Received:2011-09-01 Revised:2012-01-10 Online:2012-04-10 Published:2012-04-10

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Xu Xiaobo，Qu Chunyan，Shan Xinjian，Ma Chao，Zhang Guifang，Meng Xiuju. An Experimental Study of Monitoring Fault Crustal Deformation Using PS-InSAR Technology[J]. Advances in Earth Science, 2012, 27(4): 452-459.

PS-InSAR can get small deformation value of experimental area using two-dimensional linear(nonlinear) phase regression analysis model of high phasecoherent point differential interference phase.PS-InSAR avoids some phase error such as the phase decorrelations in time and space and atmospheric phase delay of D-InSAR. We introduce PS-InSAR phase composition,technology processing.And we take Haiyuan fault zone as experimental area (selecting a small area in Haiyuan fault)and use 21 scenes of ENVISAT ASAR data from 2003 to 2009. We apply IPTA module in GAMMA software and get deformation rate about -7~-9 mm/a in Haiyuan county of Haiyuan fault north plate.Movement direction is from east to west and display a left lateral slip fault is displayed.The experiment results compared with GPS and geological investigations results by other scholars are in good agreement.

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