【摘要】 利用通州地震台、延庆地震台和昌平地震台2004年以来使用铅板电极观测的地电场资料,对观测中常见干扰及观测问题进行了详细的识别与归类。资料变化主要有环境改变干扰、流散电流变化干扰、外空磁场环境变化干扰、观测系统本身变化(包括更换电极、更换避雷器等)。找出了典型干扰情况进行分析,结果表明:地电场观测对区域的观测环境变化以及细微电磁环境和观测系统的变化都有非常灵敏的反应。在使用地电场资料进行地震预测时,必须对各种干扰的因素进行仔细的排除。更多还原

【Abstract】 The typical interferences in the geoelectric data observed by Tongzhou,Yanqing and Changping seismostation since 2004 are identified and classified.They are mainly environmental interference,electrical current disturbance,spatial magnetic field interference,observation system itself interference(replacing electrode or arrester).The results indicated that geoelectric field observation is very sensitive to the local environment change,electrical and magnetic environment change and observation system change,so we must eliminate all interferences when using geoelectric field data.更多还原