| 用超长基线解算分析汶川地震动态形变特征 |
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| 引用本文： | 刘刚,谭凯,彭懋磊,聂兆生.用超长基线解算分析汶川地震动态形变特征[J].大地测量与地球动力学,2011,31(5):14-19. |
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| 作者姓名： | 刘刚 谭凯 彭懋磊 聂兆生 |
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| 作者单位： | 中国地震局地震研究所,武汉,430071 |
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| 基金项目： | 国家自然科学基金(40974012); 中国地震局地震研究所科技发展基金(IS200726005) |
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| 摘 要： | 以远距离的IGS武汉GPS站为参考站,用超长基线双差瞬时精密定位技术,获取汶川Ms8.0地震震时震区连续GPS站1 Hz动态形变序列.同时以较近距离的雅安站为参考站解算动态形变序列,结果显示,两者的形变结果具有很好的一致性.距离断层较近的郫县、成都、绵阳、中江等站形变较大(形变最大的郫县站最大振幅达1.034 m);位...
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| 关 键 词： | 超长基线 双差定位 汶川地震 高采样率GPS 动态形变特征 |
USING ULTRA LONG BASELINE TO MEASURE CO-SEISMIC KINEMATIC DEFORMATIONS OF WENCHUAN EARTHQUAKE |
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| Liu Gang,Tan Kai,Peng Maolei,Nie Zhaosheng.USING ULTRA LONG BASELINE TO MEASURE CO-SEISMIC KINEMATIC DEFORMATIONS OF WENCHUAN EARTHQUAKE[J].Journal of Geodesy and Geodynamics,2011,31(5):14-19. |
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| Authors: | Liu Gang Tan Kai Peng Maolei Nie Zhaosheng |
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| Institution: | Liu Gang,Tan Kai,Peng Maolei and Nie Zhaosheng (Institute of Seismology,CEA,Wuhan 430071) |
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| Abstract: | We used Wuhan,one of IGS stations,as a reference to form ultra long baseline and solve instantaneous 1-Hz-GPS positions and measure the co-seismic kinematic deformations caused by Wenchuan earthquake.Compared with the results from using Yaan as the reference which is nearby 1-Hz-GPS stations,the deformation solutions show good consistence with different reference stations.The maximum deformation amplitude is found for station Pixian,which had the largest deformation about 1.034 meter.The deformations of sta... |
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| Keywords: | ultra long baseline double-difference positioning Wenchuan earthquake high-rate GPS kinematic deformation feature |
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