利用PALSAR数据获取拉奎拉地震同震形变场

英文篇名：Using PALSAR Data to Estimate the Co-Seismic Deformation Fields of the L'Aquila Earthquake
中文刊名：现代测绘
英文刊名：Modern Surveying and Mapping
作者：谢志鹏 ; 张震华 ; 王永哲 ; 许兵
英文作者：XIE Zhi-peng~1 ; ZHANG Zhen-hua~2 ; WANG Yong-ze~3 ; XU Bing~3 (1 Land Resources Bureau of Lengshuijiang City ; Leng Shuijiang Hunan 417500 ; China ; 2 HydroChina Zhongnan Engineering Corporation ; Changsha Hunan 410014 ; China ; 3 School of Geosciences and Info-Physics ; Central South University ; Changsha Hunan 410083 ; China)
中文关键词：DInSAR ; 拉奎拉地震 ; PALSAR ; 同震形变
英文关键词：DInSAR ; L'Aquila earthquake ; PALSAR ; co-seismic deformation
出版日期：2011-09-25
机构：冷水江市国土资源局;中国水电工程顾问集团公司中南勘测设计研究院;中南大学地球科学与信息物理学院;
年：2011
期：05
出版单位：现代测绘

摘要

2009年4月6日发生的意大利拉奎拉Mw6.3地震造成了地表的严重破坏,为了解地震引起的地表变化情况,本文利用ALOS/PALSAR影像数据,采用二轨差分干涉测量技术提取了该次地震的地表同震形变场。通过分析可知:地表在西北-东南方向上发生错动,形变主要发生在40×30 km的范围内,西南部出现了沿视线方向的下降,东北部出现了沿视线方向的抬升,最大值分别为0.337 m和0.122 m。结果表明,获得的同震形变场与地震地质调查的结果一致。
The Mw6.3 L'Aquila earthquake that occurred on 6 April 2009 caused serious surface damage.To measure the ground deformation induced by the earthquake,this paper use the ALOS/PALSAR data and the Two-Pass differential interferometry to estimate the co-seismic deformation.The analysis show that the ground surface dislocated along the Northwest and Southeast direction,mainly within an area of 40×30 km,while in the Southwest and Northeast part significant subsidence and uplift occurred,with the maximum of 0.337 and 0.122 m.The results are consistent with that from geological investigation.

引文

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