安徽省地电场日变化特征初步分析  

Preliminary Analysis of the Characteristics of the Diurnal Variation of Geoelectric Field-Based on Anhui Province

作　　者：尹天杰 赵桂宝 孙亮亮[1] 张明明 YIN Tianjie;ZHAO Guibao;SUN Liangliang;ZHANG Mingming(Jiashan Seismological Station of Anhui Earthquake Agency,Mingguang Anhui 239400;Anhui Mengcheng National Geophysical Observatory,Mengcheng Anhui 233500)

机构地区：[1]安徽省地震局嘉山地震台,安徽明光239400 [2]安徽蒙城地球物理国家野外科学观测研究站,安徽蒙城233500

出　　处：《河南科技》2021年第16期138-140,共3页Henan Science and Technology

基　　金：安徽省地震局科研合同制项目(202013)。

摘　　要：通过对安徽省蒙城和嘉山两个地电场台站的大地电场分钟值资料进行分析,发现安徽省地电场的日变形态较为清晰,呈现出“双峰单谷”或者“单峰双谷”的变化形态;同一方向不同极距变化形态及相位一致,嘉山台日变形态较蒙城台更为平滑;地电场日变化形态特征与地磁场相似,但地磁场日变化形态较为平缓,且地电场相位对比地磁场而言较为滞后;磁暴发生时,地电场有较为灵敏的响应;高压直流输电线路故障是近年来影响地电场日变形态最主要的干扰之一。Based on the analysis of the minute value data of the geoelectric field at the Mengcheng and Jiashan geoelectric field stations in Anhui Province,it is found that the diurnal variation of the geoelectric field in Anhui is relatively clear,showing the change of double peaks and single valleys or single peaks and double valleys.Shape;the same direction and different pole distances change shape and phase are the same,the daily variation of Jiashan station is smoother than that of Mengcheng station;the characteristics of the diurnal variation of the geoelectric field are similar to the geomagnetic field,but the diurnal variation of the geomagnetic field is more gentle,and the phase compared with the geomagnetic field,it lags behind;when a magnetic storm occurs,the geoelectric field has a more sensitive response;the failure of high-voltage direct current transmission lines has become one of the most important disturbances affecting the daily change of geoelectric field in recent years.

关 键 词：地电场 日变化 地磁场 地电暴 高压直流输电 

分 类 号：P319.3[天文地球—固体地球物理学]