| 使用ALOS DInSAR提取汶川地震同震地表形变场 |
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| 引用本文： | 张慧鑫,刘国祥,张瑞,贾洪果.使用ALOS DInSAR提取汶川地震同震地表形变场[J].大地测量与地球动力学,2011,31(2):32-37. |
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| 作者姓名： | 张慧鑫 刘国祥 张瑞 贾洪果 |
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| 作者单位： | 1)四川教育学院土木与交通工程学院，成都 611130;2)西南交通大学地球科学与环境工程学院，成都 610031 |
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| 基金项目： | 国家自然科学基金(4774004); 新世纪优秀人才支持计划(NCET-08-0822) |
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| 摘 要： | 为探测汶川Ms8.0地震引起的地表形变,用ALOS卫星PALSAR L波段SAR数据与GPS观测数据,采用两轨雷达差分干涉方法,计算出了地震影响区约83 194km2范围内的同震干涉图与形变场.此外,以16个GPS点的形变数据为参考,对干涉形变的精度进行分析,结果表明:除近断层区域两类数据存在较大差异外,整体吻合程度较...
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| 关 键 词： | 汶川地震 PALSAR 同震形变 合成孔径雷达差分干涉 GPS |
EXTRACTING COSEISMIC DEFORMATION FIELD RELATED TO WENCHUAN Ms8.0 EARTHQUAKE BY USE OF ALOS DInSAR |
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| Zhang Huixin,Liu Guoxiang,Zhang Rui,Jia Hongguo.EXTRACTING COSEISMIC DEFORMATION FIELD RELATED TO WENCHUAN Ms8.0 EARTHQUAKE BY USE OF ALOS DInSAR[J].Journal of Geodesy and Geodynamics,2011,31(2):32-37. |
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| Authors: | Zhang Huixin Liu Guoxiang Zhang Rui Jia Hongguo |
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| Institution: | Zhang Huixin 1),Liu Guoxiang 2),Zhang Rui 2) and Jia Hongguo 2) 1)School of Civil and Transportation Engineering,Sichuan College of Education,Chengdu 611130 2)Dept.of Surveying Engineering,School of Civil Engineering,Southwest Jiaotong University,Chengdu 610031 |
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| Abstract: | In order to detect surface deformation caused by the Wenchuan Ms8.0 earthquake,the two-pass differential interferometric synthetic aperture radar(DInSAR) method is employed for analyzing the ground displacement due to the main shock by using both the ALOS satellite PALSAR L-band SAR data and GPS data.We computed the coseismic interferogram and the deformation field with spatial resolution of 15 m in an area of about 83 194 km 2.Moreover,the accuracy of deformation values derived interferometrically is evalu... |
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| Keywords: | Wenchuan earthquake PALSAR coseismic deformation DInSAR GPS |
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