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地电场多极距观测的异常识别和分析
李伟1, 马钦忠1, 王冠玥2
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
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。
关键词:  地电场  干扰  自然电场  电离层扰动
DOI:
分类号:
基金项目:地震科技星火计划( XH12016) 及上海市科研计划项目( 12231202700) 共同资助
Abnormal signal recognition by multi-dipole observation of geoelectric field
Li Wei1, Ma Qinzhong1, Wang Guanyue2
1.Earthquake Administration of Shanghai Municipality,Shanghai 200062,China;2.Shanghai Second Polytechnic University,Shanghai 201209,China
Abstract:
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.
Key words:  Geoelectric field  Interference  Spontaneous  Electric field ionospheric disturbances