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Article: Co-seismic ground deformation of Yushu Earthquake detected with D-InSAR technique

TitleCo-seismic ground deformation of Yushu Earthquake detected with D-InSAR technique
青海玉樹地震差分干涉雷達同震形變測量
Authors
KeywordsYushu Earthquake (玉樹地震)
D-InSAR (差分干涉)
Co-seismic ground deformation (同震形變)
Lake ice fracturing
Issue Date2010
PublisherScience Press. The Journal's web site is located at http://www.jors.cn
Citation
遙感學報, 2010, v. 14 n. 5, p. 1029-1037 How to Cite?
Journal of Remote Sensing, 2010, v. 14 n. 5, p. 1029-1037 How to Cite?
AbstractAn earthquake of magnitude 7.1 suddenly occurred in Yushu county of Qinghai province on April 14, 2010. This paper presents the studies of using the data of Advanced Land Observing Satellite-Phased Array type L-band Synthetic Aperture Radar (ALOS-PALSAR) before and after the earthquake to examine and calculate the co-seismic ground deformation. The differential SAR interferometry (D-InSAR) technique is used. The results show that the earthquake caused the ground deformation over a large area. The extension of the ground deformation followed the south-east to east direction and along the Yushu-Ganzi fault zone. The largest deformation was found about 350 mm at 33.7°N 96.81°E. It is along the line of sight (LOS) of SAR and can be detected with D-InSAR technique. The detected ground deformation was mainly uplifting. The detected ground deformation has an important value for evaluating the extent of ground damage and seismicity in Yushu after earthquake, inferring the nature of the quake faulting, and studying characteristics of seismic deformation. 2010-04-14青海玉树发生7.1级地震后, 作者利用震前和震后获取的日本ALOS卫星PALSAR遥感数据, 开展了差分干涉雷达(D-InSAR)地震同震形变测量与分析。结果表明: 玉树地震引起较大范围地表变形, 地震变形沿玉树—甘孜断裂带向南东东方向扩展, 在N33.7°, E96.81°附近达到最大形变量, D-InSAR监测到雷达视向上的最大形变量为35cm。地表形变特征对于评价玉树地震破坏程度、推断断层性质、研究地震形变和地震孕育特征具有重要的参考价值。
Persistent Identifierhttp://hdl.handle.net/10722/139101
ISSN
2015 SCImago Journal Rankings: 0.199

 

DC FieldValueLanguage
dc.contributor.authorShao, Yen_US
dc.contributor.authorXie, Cen_US
dc.contributor.authorYue, Zen_US
dc.contributor.authorWan, Zen_US
dc.contributor.authorWang, Sen_US
dc.contributor.authorBian, XLen_US
dc.contributor.authorGong, HZen_US
dc.contributor.authorZhang, FLen_US
dc.date.accessioned2011-09-23T05:44:58Z-
dc.date.available2011-09-23T05:44:58Z-
dc.date.issued2010en_US
dc.identifier.citation遙感學報, 2010, v. 14 n. 5, p. 1029-1037zh_HK
dc.identifier.citationJournal of Remote Sensing, 2010, v. 14 n. 5, p. 1029-1037-
dc.identifier.issn1007-4619-
dc.identifier.urihttp://hdl.handle.net/10722/139101-
dc.description.abstractAn earthquake of magnitude 7.1 suddenly occurred in Yushu county of Qinghai province on April 14, 2010. This paper presents the studies of using the data of Advanced Land Observing Satellite-Phased Array type L-band Synthetic Aperture Radar (ALOS-PALSAR) before and after the earthquake to examine and calculate the co-seismic ground deformation. The differential SAR interferometry (D-InSAR) technique is used. The results show that the earthquake caused the ground deformation over a large area. The extension of the ground deformation followed the south-east to east direction and along the Yushu-Ganzi fault zone. The largest deformation was found about 350 mm at 33.7°N 96.81°E. It is along the line of sight (LOS) of SAR and can be detected with D-InSAR technique. The detected ground deformation was mainly uplifting. The detected ground deformation has an important value for evaluating the extent of ground damage and seismicity in Yushu after earthquake, inferring the nature of the quake faulting, and studying characteristics of seismic deformation. 2010-04-14青海玉树发生7.1级地震后, 作者利用震前和震后获取的日本ALOS卫星PALSAR遥感数据, 开展了差分干涉雷达(D-InSAR)地震同震形变测量与分析。结果表明: 玉树地震引起较大范围地表变形, 地震变形沿玉树—甘孜断裂带向南东东方向扩展, 在N33.7°, E96.81°附近达到最大形变量, D-InSAR监测到雷达视向上的最大形变量为35cm。地表形变特征对于评价玉树地震破坏程度、推断断层性质、研究地震形变和地震孕育特征具有重要的参考价值。zh_HK
dc.languageengen_US
dc.languagechi-
dc.publisherScience Press. The Journal's web site is located at http://www.jors.cn-
dc.relation.ispartof遙感學報zh_HK
dc.relation.ispartofJournal of Remote Sensing-
dc.subjectYushu Earthquake (玉樹地震)zh_HK
dc.subjectD-InSAR (差分干涉)zh_HK
dc.subjectCo-seismic ground deformation (同震形變)zh_HK
dc.subjectLake ice fracturing-
dc.titleCo-seismic ground deformation of Yushu Earthquake detected with D-InSAR techniqueen_US
dc.title青海玉樹地震差分干涉雷達同震形變測量zh_HK
dc.typeArticleen_US
dc.identifier.emailYue, Z: yueqzq@hku.hken_US
dc.identifier.authorityYue, Z=rp00209en_US
dc.identifier.hkuros195964en_US
dc.identifier.volume14en_US
dc.identifier.issue5en_US
dc.identifier.spage1029en_US
dc.identifier.epage1037en_US
dc.publisher.placeChina-

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