北京地电台网典型干扰及影响因素浅析

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本文基于数据跟踪分析工作,通过对北京地电台网2015年1月—2020年12月的非正常变化事件记录进行系统整理和汇总分析,研究得出北京地电台网的典型干扰有观测系统故障、自然环境影响、场地环境影响、人为干扰、地球物理事件和不明原因干扰6类.其中,场地环境干扰对地电台网的影响最为严重,占地电台网干扰的75%.场地环境干扰主要影响因素为城市轨道交通、抽水灌溉、设备漏电、工程影响和高压直流输电.开展井下地电观测是减小场地环境干扰的有效办法.研究成果为提高北京地电台网数据观测质量,更好地应用于地震预测研究提供了科学依据和技术参考.
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