地电场多极距观测的异常识别和分析  

Abnormal signal recognition by multi-dipole observation of geoelectric field

作　　者：李伟[1] 马钦忠[1] 王冠玥[2] 

机构地区：[1]上海市地震局,上海市兰溪路87号200062 [2]上海第二工业大学,上海201209

出　　处：《中国地震》2014年第1期91-101,共11页Earthquake Research in China

基　　金：地震科技星火计划(XH12016);上海市科研计划项目(12231202700)共同资助

摘　　要：以上海地区的3个地电场观测台站的资料为例,结合地电场多极距观测原理对地电场信号异常进行识别分析。结果表明,利用地电场多极距观测装置系统和分析方法可以有效识别并区分地电场观测中的电极极化干扰、雷击干扰、高压直流输电干扰、电离层扰动干扰和自然电场异常等信号。In this paper,the abnormal variations of geoelectric field observed at three stations in the Shanghai area are studied by the principle of multi-dipole observation system of geoelectric field,and the different types of interference of geoelectric field are distinguished.The results show that the multi-dipole observation system of geoelectric field and the analysis method can effectively recognize the abnormal signal of Electrode polarization interference,Lightning interference,HVDC transmission interference,ionospheric disturbances,and abnormities of spontaneous electric field.

关 键 词：地电场 干扰 自然电场 电离层扰动 

分 类 号：P315[天文地球—地震学]