InSAR DEFORMATION OBSERVATION AND PRELIMINARY ANALYSIS OF THE MS 8 WENCHUAN EARTHQUAKE

SEISMOLOGY AND GEOLOGY ›› 2008, Vol. 30 ›› Issue (3): 789-795.

• Application of new techniques • Previous Articles Next Articles

InSAR DEFORMATION OBSERVATION AND PRELIMINARY ANALYSIS OF THE M_S 8 WENCHUAN EARTHQUAKE

SUN Jian-bao¹, LIANG Fang², SHEN Zheng-kang¹, XU Xi-wei¹

1. Institute of Geology, China Earthquake Administration, Beijing 100029, China;
2. Earthquake Administration of Beijing Municipality, Beijing 100081, China

Received:2008-08-06 Revised:2008-08-21 Online:2008-09-18 Published:2009-11-27

汶川M_S8.0地震InSAR形变观测及初步分析

孙建宝¹, 梁芳², 沈正康¹, 徐锡伟¹

1. 中国地震局地质研究所, 北京, 100029;
2. 北京市地震局, 北京, 100081

作者简介:孙建宝,男,1975年,博士,主要研究InSAR技术在地壳形变场中的应用,以及InSAR和GPS形变场的联合反演问题等,010-62009006,E-mail:Sunjianbao@gmail.com.
基金资助:
中国地震局汶川8级地震应急科学考察项目资助

Abstract

Abstract: After the May 12,2008 M_S 8 Wenchuan earthquake,we extract the high-precision deformation data covering the whole quake-stricken area(～500km×350km)by using SAR Interferometry approach(InSAR),which provides important information for the earthquake mechanism research.By analyzing InSAR imaging geometry and the characteristics of ALOS PALSAR data,we get some qualitative knowledge of the Wenchuan earthquake.This work provides helpful information for the related research and a basis for the following quantitative inversion of the earthquake rupture.The InSAR application of this earthquake shows the scientific significance of satellite geodesy to earthquake research.

Key words: M_S8.0 Wenchuan earthquake, co-seismic deformation, SAR Interferometry

摘要： 2008年5月12日汶川M_S8.0地震发生后,通过干涉雷达方法(InSAR)获得了覆盖整个灾区全面的高精度形变观测资料(约500km×350km),为研究该地震的发生机理提供了重要的观测依据。通过分析InSAR成像几何和ALOS PALSAR数据的特点,初步获得了对汶川地震的定性认识,为相关研究提供参考,也为进一步深入定量反演奠定基础。此次地震中InSAR卫星观测的应用,显示了卫星大地测量手段对于地震科学研究的重要意义。

关键词: 汶川M_S8.0地震, 同震形变, 干涉雷达

CLC Number:

P228.4

SUN Jian-bao, LIANG Fang, SHEN Zheng-kang, XU Xi-wei. InSAR DEFORMATION OBSERVATION AND PRELIMINARY ANALYSIS OF THE M_S 8 WENCHUAN EARTHQUAKE[J]. SEISMOLOGY AND GEOLOGY, 2008, 30(3): 789-795.

孙建宝, 梁芳, 沈正康, 徐锡伟. 汶川M_S8.0地震InSAR形变观测及初步分析[J]. 地震地质, 2008, 30(3): 789-795.

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InSAR DEFORMATION OBSERVATION AND PRELIMINARY ANALYSIS OF THE M_S 8 WENCHUAN EARTHQUAKE

汶川M_S8.0地震InSAR形变观测及初步分析

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InSAR DEFORMATION OBSERVATION AND PRELIMINARY ANALYSIS OF THE MS 8 WENCHUAN EARTHQUAKE

汶川MS8.0地震InSAR形变观测及初步分析

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InSAR DEFORMATION OBSERVATION AND PRELIMINARY ANALYSIS OF THE M_S 8 WENCHUAN EARTHQUAKE

汶川M_S8.0地震InSAR形变观测及初步分析