| 四川宜宾6.0级地震对北斗地基增强基准站稳定性的短期影响 |
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| 引用本文： | 贾逸君,成芳,沈鹏礼.四川宜宾6.0级地震对北斗地基增强基准站稳定性的短期影响[J].西北地震学报,2020,42(6):1473-1478. |
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| 作者姓名： | 贾逸君 成芳 沈鹏礼 |
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| 作者单位： | 中国科学院国家授时中心, 陕西 西安 710061;中国科学院 精密导航定位与定时技术重点实验室, 陕西 西安 710061;中国科学院大学, 北京 100049 |
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| 基金项目： | 中国科学院青年科学基金促进会资助项目（11880000CF） |
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| 摘 要： | 通过收集2019年6月17日宜宾长宁6.0级地震震源附近北斗地基增强系统基准站前后一个月的观测数据，研究探讨短时间内地震对北斗地基增强基准站坐标稳定性的影响。通过数据对比发现宜宾地震对基准站坐标影响与基准站和震源断裂带的相对方位有较大关联。震源周围基准站间基线的变化说明基准站稳定性在较短时间跨度内受到较为明显的地震影响，对北斗地基增强框架网整体稳定性具有一定的扰动，进一步论证了建立北斗地基增强框架网基准站稳定性监控系统的必要性。
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| 关 键 词： | 地震同震形变 北斗基准站 基准站稳定性 北斗地基增强系统 |
| 收稿时间： | 2019/12/23 0:00:00 |
Short-term Influence of M6.0 Earthquake in Yibin, Sichuan, on the Stability of Base Stations for BeiDou Ground-based Augmentation System |
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| JIA Yijun,CHENG Fang,SHEN Pengli.Short-term Influence of M6.0 Earthquake in Yibin, Sichuan, on the Stability of Base Stations for BeiDou Ground-based Augmentation System[J].Northwestern Seismological Journal,2020,42(6):1473-1478. |
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| Authors: | JIA Yijun CHENG Fang SHEN Pengli |
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| Institution: | National Time Service Center of Chinese Academy of Sciences, Xi''an 710061, Shaanxi, China;Key Laboratory of Precision Navigation and Timing Technology, Chinese Academy of Sciences, Xi''an 710061, Shaanxi, China;University of Chinese Academy of Sciences, Beijing 100049, China |
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| Abstract: | This paper studies the influence of earthquake on the coordinate stability of seven base stations in a short time by collecting the observation data from base stations for BeiDou ground-based augmentation system near the epicenter of the Changning M6.0 earthquake in Yibin County, Sichuan Province, on June 17, 2019. It is found through data comparison that the influence of Yibin earthquake on the coordinate of the base station is closely related to the relative orientation of the base station and the focal fault zone. The coseismic changes of the baseline between base stations indicate the obvious influence of the Changning M6.0 earthquake on the stability of base stations in a short time. The necessity of building the base station stability monitoring system of BeiDou ground-based augmentation frame network is further demonstrated. |
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| Keywords: | coseismic deformation BeiDou reference station reference station stability BeiDou ground-based augmentation system |
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