SENTINEL-1A影像用于台湾高雄Mw6.7地震形变分析
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摘要
为及时获取大范围地震震前震后的形变数据,监测和分析地表形变,利用欧空局最新发射的SENTINEL-1A SAR影像,采用D-InSAR技术获取台湾高雄Mw6.7级地震同震形变场。研究分析得到台湾高雄地震的震中位置约为120.41°E、22.96°N,地震主要形变范围为震中方圆约8.3 km,地表在雷达视线向最大形变约为16.4 cm、最大相对形变约18.0 cm。
In order to obtain large-area seismic deformation data, monitoring and analysis of surface deformation, based on InSAR data from the newly launched ESA's Sentinel-1 A satellite, we used D-InSAR to obtain coseismic deformation field of the Kaohsiung Mw6.7 earthquake located in Taiwan, China. The results show that the epicenter of the earthquake is about120.41 E, 22.96 N. The main deformation range is about 8.3 km. The maximal deformation in the line of sight(LOS) direction reaches about 16.4 cm, and the maximal relative deformation in LOS direction reaches about 18.0 cm.
In order to obtain large-area seismic deformation data, monitoring and analysis of surface deformation, based on InSAR data from the newly launched ESA's Sentinel-1 A satellite, we used D-InSAR to obtain coseismic deformation field of the Kaohsiung Mw6.7 earthquake located in Taiwan, China. The results show that the epicenter of the earthquake is about120.41 E, 22.96 N. The main deformation range is about 8.3 km. The maximal deformation in the line of sight(LOS) direction reaches about 16.4 cm, and the maximal relative deformation in LOS direction reaches about 18.0 cm.
引文
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[17]哈佛大学Global CMT网.201602051957A TAIWAN.www.globalcmt.org/CMTsearch.html,2016-03-05/2017-05-01
[2]马超,单新建.星载合成孔径雷达差分干涉测量(D-In SAR)技术在地表监测中的应用概述[J].中国地震,2004,20(4):410-418
[3]屈春燕,单新建.四川汶川Ms8.0级地震同震干涉变形场定量分析[J].自然科学进展,2009,19(9):963-974
[4]Massonnet D.The Displacement Field of the Landers Earthquake Mapped by Radar Interferometry[J].Nature,1993(364):138-142
[5]Zebker H A,Rosen P A,Goldstein R M,et al.On the Derivation of Coseismic Displacement Fields Using Differential Radar Interferometry:The Landers Earthquake[J].J Geophys Res,1994,99(B10):19 617-19 634
[6]刘国祥,丁晓利,等.ERS卫星雷达干涉测量:1999年台湾集集大地震震前和同震地表位移[J].地球物理学报,2002,22(9):2 367-2 374
[7]Xia Y.Surface Deformation Monitor of Bam Earthquake Using Radar Interferometry[J].Acta Seismologica Sinica,2005,27(4):423-430
[8]孙建宝,梁芳.汶川Ms8.0地震InSAR形变观测及初步分析[J].地震地质,2008,30(3):789-795
[9]屈春燕,单新建.D-InSAR技术应用于汶川地震地表位移场的空间分析[J].地震地质,2010,32(2):175-189
[10]单新建.汶川Ms8.0级地震In SAR同震形变场观测与研究[J].地球物理学报,2009,52(2):496-503
[11]余景波.基于D-InSAR的矿区地表沉陷监测与分析[D].青岛:山东科技大学,2011
[12]王猛.机载InSAR区域网干涉参数定标方法研究[D].青岛:山东科技大学,2012
[13]杨珍,张永志,吴然,等.基于D-InSAR技术的当雄地震形变场提取研究[J].测绘工程,2016,25(8):5-10
[14]黄宝伟.基于D-InSAR和GIS技术的煤矿区地面沉降监测研究[D].青岛:中国石油大学(华东),2011
[15]马志泉.基于D-InSAR提取汶川地震的地表形变研究[D].绵阳:西南科技大学,2012
[16]刘志敏,张景发,罗毅,等.InSAR相位解缠算法的实验对比研究[J].遥感信息,2012(2):71-75
[17]哈佛大学Global CMT网.201602051957A TAIWAN.www.globalcmt.org/CMTsearch.html,2016-03-05/2017-05-01