| 融合多平台DInSAR数据解算拉奎拉地震三维同震形变场 |
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| 引用本文： | 王永哲, 李志伟, 朱建军, 胡俊. 融合多平台DInSAR数据解算拉奎拉地震三维同震形变场[J]. 武汉大学学报 ( 信息科学版), 2012, 37(7): 859-863. |
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| 作者姓名： | 王永哲 李志伟 朱建军 胡俊 |
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| 作者单位： | 1中南大学地球科学与信息物理学院,长沙市麓山南路932号410083 |
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| 基金项目： | 国家自然科学基金资助项目，国家教育部新世纪优秀人才支持计划资助项目，国家西部1∶50000空白区测图工程研究课题资助项目，湖南省高校创新平台资助项目，中南大学研究生教育创新工程资助项目 |
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| 摘 要： | 针对单一平台DInSAR技术仅能获取雷达视线方向同震形变场的问题,根据雷达成像的几何条件,融合不同轨道、不同平台的DInSAR数据解算了拉奎拉地震的三维同震形变场。三维形变结果反映的拉奎拉地震发震断层的特征与地质调查的结果较吻合。将得到的三维形变场数据与该地区GPS观测站数据进行比较,结果表明,得到的拉奎拉地震的三维同震形变场比较可靠且精度较高。
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| 关 键 词： | 拉奎拉地震 DInSAR 三维形变 多平台 |
| 收稿时间： | 2012-04-21 |
Coseismic Three-dimensional Deformation of L'Aquila Earthquake Derived from Multi-platform DInSAR Data |
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| WANG Yongzhe, LI Zhiwei, ZHU Jianjun, HU Jun. Coseismic Three-dimensional Deformation of L'Aquila Earthquake Derived from Multi-platform DInSAR Data[J]. Geomatics and Information Science of Wuhan University, 2012, 37(7): 859-863. |
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| Authors: | WANG Yongzhe LI Zhiwei ZHU Jianjun HU Jun |
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| Affiliation: | 1 School of Geosciences and Info-Physics,Central South University,932 South Lushan Road,Changsha 410083,China |
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| Abstract: | Differential Synthetic Aperture Radar Interferometry(DInSAR) can only measure one-dimensional deformation of surface along Radar line-of-sight(LOS).However,surface changes always exhibit three-dimensional(3D) characteristics.This paper presents a method to estimate 3D deformation of L’Aquila earthquake by combining multi-platform DInSAR LOS data based on the imaging geometry of Radar.The characters of the surface reflected by the 3D deformation are very consistent with the geological exploration.The 3D deformation was also compared with real GPS survey,and the results demonstrate that the 3D surface deformation fields are reliable and with high accuracy. |
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| Keywords: | L'Aquila earthquake DInSAR 3D deformation multi-platform |
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