摘要
系统整理分析了2007年6月1日以来的陇南地电场观测资料,对一些影响地电场数据变化的干扰因素进行识别与分析,认为这些干扰主要为地电暴、地电阻率供电、降雨、农田灌溉和雷电干扰等。对观测数据的日变形态和特征进行总结,认为干扰的表现形式主要为台阶型、方波型和阶跃型以及高频脉冲和不规则大幅度突跳等。正确识别和排除各类干扰,并正确处理观测资料,对进一步提高观测资料质量及应用具有重要的意义。
In this paper,the observed data of geo-electric field since June 1,2007 recorded by Hanwang seismic station are analyzed,and the diurnal variation morphology and characteristics of these observed data are summarized. At the same time,some interference factors affecting the change of geo-electric field data are identified and analyzed. It is found that these disturbances are mainly caused by the operation of railway powered by geo-electric storm,irrigation by rainfall,lightning interference,and so on. The main manifestations of these disturbances are the step of step square wave,the irregular and large jump of high frequency pulse and so on. These knowledge have positive significance for correctly identifying and eliminating all kinds of interference signals and further improving the quality of observation.
作者
梅东林
MEI Donglin(Longnan Central Seismic Station,Gansu Earthquake Agency,Longnan 746000,China)
出处
《高原地震》
2019年第2期42-47,共6页
Plateau Earthquake Research
关键词
汉王地震台
地电场
干扰
前兆异常
Hanwang seismic station
Geo-electric Field
Interference factors
