| 垂直电场观测试验及数据初步分析 |
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| 引用本文： | 王兰炜,张世中,康云生,安海静.垂直电场观测试验及数据初步分析[J].地震学报,2011,33(4):461-470. |
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| 作者姓名： | 王兰炜 张世中 康云生 安海静 |
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| 作者单位： | 中国北京100085中国地震局地壳应力研究所 2) 中国兰州730000甘肃省地震局 |
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| 基金项目： | “十一五”国家科技支撑项目子专题(2008BAC35B05)资助 |
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| 摘 要： | 地震发生前的电磁异常现象已被地面、卫星等多种观测手段观测到．目前，我国已经建成了100多个水平地电场观测台站，然而对于垂直电场的观测仍是一个空白．自2009年4月开始，在甘肃天祝地震前兆科学台阵的红沙湾、黄羊川、松山建立了3个垂直电场观测试验站，进行垂直地电场的试验观测，在我国专门的垂直地电场观测试验研究尚属首次．通过近1年的观测试验，取得了有价值的观测资料．从数据的初步结果来看，垂直电场的日变化形态清晰，黄羊川和松山观测数据的日变幅度在16 mV/km左右，红沙湾观测数据的日变幅度在8 mV/km左右；垂直电场日变化周期的主要成分是24小时的全日波，其次是12小时周期的半日波．
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| 关 键 词： | 垂直地电场 水平地电场 电极 周期 日变化 |
Experimental observation and preliminary data analysis of vertical geo-electric field |
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| Wang Lanwei,Zhang Shizhong,Kang Yunsheng,An Haijing.Experimental observation and preliminary data analysis of vertical geo-electric field[J].Acta Seismologica Sinica,2011,33(4):461-470. |
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| Authors: | Wang Lanwei Zhang Shizhong Kang Yunsheng An Haijing |
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| Institution: | 1) Institute of Crustal Dynamics, China Earthquake Administration, Beijing 100085, China2) Earthquake Administration of Gansu Province, Lanzhou 730000, China |
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| Abstract: | Electromagnetic anomalies before earthquakes have been observed many times on ground and by satellite.At present,there are more than one hundred stations for horizontal geo-electric field observation in China.However,there had been none for vertical geo-electric observation before this study.Since April 2009 we have set up three vertical geo-electric field observation sites at Songshan,Huangyangchuan and Hongshawan in Tianzhu region,Gansu province.It is the first time to do this kind of study in China.For o... |
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| Keywords: | vertical geo-electric field horizontal geo-electric field electrode period diurnal variation |
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