| 单历元PPP分析日本Mw9.0地震引起的我国东部沿海同震地表形变 |
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| 引用本文： | 沈飞, 李建成, 郭斐. 单历元PPP分析日本Mw9.0地震引起的我国东部沿海同震地表形变[J]. 武汉大学学报 ( 信息科学版), 2012, 37(11): 1345-1347. |
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| 作者姓名： | 沈飞 李建成 郭斐 |
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| 作者单位： | 1武汉大学测绘学院,武汉市珞喻路129号430079;2江苏省测绘工程院,南京市北京西路75号210013 |
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| 基金项目： | 国家自然科学基金资助项目，江苏省“333工程”科研计划资助项目，江苏省测绘科研资助项目 |
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| 摘 要： | 通过对高频GPS观测数据的单历元PPP进行解算,并对定位结果进行恒星日滤波,详细分析了日本Mw9.0地震引起的我国东部沿海的同震地表形变过程。结果显示,震时我国东部沿海基准站发生了显著的水平方向和垂直方向的瞬时形变,幅度约为10cm,震后没有产生大于1cm的永久性位移,与国内外相关研究结果基本一致,验证了PPP技术用于同震地表形变分析的有效性。
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| 关 键 词： | 精密单点定位 单历元 日本Mw9.0地震 同震地表形变 恒星日滤波 |
| 收稿时间： | 2012-09-15 |
Analysis of the Coseismic Displacements Along Eastern Coast of China Caused by the 2011 Tohoku-Oki Earthquake Using Epoch-by-Epoch PPP |
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| SHEN Fei, LI Jiancheng, GUO Fei. Analysis of the Coseismic Displacements Along Eastern Coast of China Caused by the 2011 Tohoku-Oki Earthquake Using Epoch-by-Epoch PPP[J]. Geomatics and Information Science of Wuhan University, 2012, 37(11): 1345-1347. |
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| Authors: | SHEN Fei LI Jiancheng GUO Fei |
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| Affiliation: | 1 School of Geodesy and Geomatics,Wuhan University,129 Luoyu Road,Wuhan 430079,China;2 Jiangsu Province Engineering Institute of Surveying and Mapping,75 West Beijing Road,Nanjing 210013,China |
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| Abstract: | The coseismic displacements of Mw9.0 Tohoku-Oki earthquake was analyzed with some GPS fiducial stations located in China east coasts,which using epoch-by-epoch PPP and sidereal filtering technique.The result shows an apparent displacement along horizontal and vertical directions,whose amplitude is about 10 cm.However,after the earthquake,there is no obvious permanent displacements more than 1 cm,which agrees with the results of the domestic and foreign relevant groups,and proves the effectiveness of PPP technology used for coseismic displacements analysis. |
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| Keywords: | precise point positioning epoch-by-epoch Mw9.0 Tohoku-Oki earthquake coseismic displacements sidereal filtering |
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