摘要
通过分析2016年以来信阳地震台GM4型磁通门磁力仪观测数据受到干扰情况,将干扰类型分为内观测环境干扰和外观测环境干扰。分析表明:内观测环境干扰主要为观测室内温湿度变化和仪器本身背景噪声的影响;外观测环境干扰主要为高压直流输电和台站附近车辆干扰;内、外观测环境干扰都能通过及时有效的措施来降低其干扰影响,从而提高观测资料质量。
The interference conditions of GM4 fluxgate magnetometer observation data at Xinyang Seismic station since 2016 was analyzed,and the interference types were divided into internal observation environment interference and external observation environment interference.The analysis shows that:(1)the ambient interference with internal observation is mainly the influence of indoor temperature and humidity change and the background noise of the instrument itself.(2)External observation environment interference mainly consists of HVDC transmission and vehicle interference near the station.(3)Both internal and external observation environment interference can be reduced through timely and effective measures,so as to improve the quality of observation data.
作者
陈贤
成万里
黄恩贤
CHEN Xian;CHENG Wanli;HUANG Enxian(Henan Earthquake Agency,Zhengzhou 450016,China)
出处
《高原地震》
2021年第3期41-46,共6页
Plateau Earthquake Research
基金
中国地震局地壳应力研究所与河南省地震局合作项目—“Cosmic掩星数据加工整理”(项目编号:HNDZ-20190605-106)
河南省地震局科研基金联合资助
关键词
地磁观测数据
相关性分析
内环境干扰
外环境干扰
应对措施
Geomagnetic observation data
Correlation analysis
Internal environment interference
External environment interference
Response
作者简介
陈贤(1993-),男,湖北汉川人,主要从事地震地球物理分析预报工作。E-mail:471738979@qq.com。
