元谋水化站地电场观测质量及典型干扰分析

ANALYSIS ON OBSERVATION QUALITY AND TYPICAL INTERFERENCE OF GEOELECTRIC FIELD AT YUANMOU HYDRATION STATION

为进一步发挥好地电场观测在滇中、滇西地壳运动中的监测作用。以元谋水化站地电场观测资料为研究对象,对观测数据质量进行分析。利用常规变化干扰的识别方法,分析与介绍该地电场观测中出现的农户电机抽水造成的干扰特征及其排查过程。研究成果为台站工作人员正确识别干扰源,鉴别地电场震前异常变化提供依据。

In order to give full play to the monitoring function of geoelectric field observation in the crustal movement towards central and western Yunnan.Taking the observation data onto ground electric field in Yuanmou hydration station as the research object,the quality of the observation data is analyzed.Based on the identification method of conventional variation interference,the characteristics of interference caused by pumping of household motor in electric field observation and it’s troubleshooting process is analyzed and introduced.The research results to provide a basis of station staff to identify the interference sources correctly and identify the abnormal changes of ground electric field before earthquake.