| 石柱地震台地磁观测干扰分析 |
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| 引用本文： | 杨亚运,张巡,宋沅曦,汪建.石柱地震台地磁观测干扰分析[J].地震地磁观测与研究,2020,41(2):138-145. |
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| 作者姓名： | 杨亚运 张巡 宋沅曦 汪建 |
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| 作者单位： | 中国重庆 401120 重庆市地震局 |
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| 基金项目： | 重庆市地震局2019年科研课题 |
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| 摘 要： | 2016年以来石柱地震台地磁观测数据明显受到环境干扰,与相邻地震台日均值数据进行相关性分析,确定在干扰时段内,地磁观测数据主要受台站环境改造及周边建筑施工影响。据干扰产生原理将干扰源分为铁磁性和电磁性干扰,分析干扰时段内地磁观测数据曲线典型特征,为今后地磁台站选址及干扰判别积累经验。
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| 关 键 词： | 地磁观测 相关性分析 铁磁性干扰 电磁性干扰 |
Analysis of geomagnetic observation interference at Shizhu Seismic Station |
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| YANG Yayun,ZHANG Xun,SONG Yuanxi,WANG Jian.Analysis of geomagnetic observation interference at Shizhu Seismic Station[J].Seismological and Geomagnetic Observation and Research,2020,41(2):138-145. |
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| Authors: | YANG Yayun ZHANG Xun SONG Yuanxi WANG Jian |
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| Institution: | Chongqing Earthquake Agency, Chongqing Municipality 401120, China |
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| Abstract: | The geomagnetic observation data at Shizhu Seismic Station are obviously affected by environmental impacts since 2016. Correlation analysis of the daily average data with an adjacent seismic station reveals that, in the interference period, the magnetic observation data were disturbed by the construction of surrounding buildings and reconstruction at the seismic station. The interference sources can be divided into ferromagnetic interference and electromagnetic interference according to the jamming principle. Analysis of the typical characteristics of the geomagnetic observation data curve during the interference period will accumulate experience for site selection and interference discrimination in the future. |
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| Keywords: | geomagnetic observation correlation analysis ferromagnetic interference electromagnetic interference |
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