山西临汾台大地电场典型干扰与地震异常信号识别  

Typical Interference and Earthquake Abnormal Signal Identification of the Geoelectric Field at Linfen Seismic Station

作　　者：李艳[1,2] LI Yan(Earthquake Administration of Shanxi Province, Shanxi Taiyuan 030021,China;National Continental Rift Valley Dynamics Observatory of Taiyuan, Shanxi Taiyuan 030025,China)

机构地区：[1]山西省地震局 [2]太原大陆裂谷动力学国家野外科学观测研究站

出　　处：《四川地震》2019年第3期32-37,共6页Earthquake Research in Sichuan

基　　金：临汾台前兆典型干扰识别及异常震例分析(SBK-1510)

摘　　要：本文通过对山西临汾中心地震台大地电场资料分析,给出了农田灌溉、雷电、高压直流输电、铁丝网接地等几种常见自然因素引起的典型干扰曲线形态,以及河津、洪洞2次地震前的异常电信号图像特征,为今后观测数据处理、日常会商及异常跟踪分析等工作提供参考。Based on the analysis of the geoelectric field data of the Linfen Seismic Station in Shanxi Province, this paper presents the typical interference curve patterns caused by several common natural factors such as farmland irrigation, lightning, HVDC transmission and barbed wire grounding,as well as the characteristics of abnormal electrical signals before the Hejin and Hongtong earthquake. These results have positive reference significance for workers engaged in observation data processing, daily meeting and abnormal tracking analysis.

关 键 词：临汾台 大地电场 典型干扰 异常电信号 

分 类 号：P315.722[天文地球—地震学]