地震地磁观测与研究2024，Vol.45Issue(2)：90-100,11.DOI:10.3969/j.issn.1003-3246.2024.02.012
昌平地震台钻孔应变观测数据质量分析
Quality analysis of borehole strain observation data at Changping Seismic Station
摘要
Abstract
A large amount of observation data has been accumulated over the years in the borehole strain measurement program of the Changping Seismic Station.The quality of the observed data was assessed in terms of continuity and stability by reconciliation analysis and relative calibration,and the earthquake-reflecting capability of different borehole strain instruments was analyzed.The results show that the operational measurements are stable and reliable,and the overall quality of the observation data is good within a certain time.The analysis of typical historical earthquakes within 300 km from the station shows that the strain of the station has obvious trend anomalies before many earthquakes of magnitude 5 or above in North China,and the component strain instrument has recorded critical anomalies many times.The analyses show that the borehole strain observation data of the Changping Seismic Station can reflect the tectonic activity and strain state of the region where it is located,and can provide reliable basic data for earthquake monitoring and research.关键词
昌平地震台/钻孔应变/观测数据/质量评估/映震能力Key words
Changping Seismic Station/borehole strain/observation data/quality assessment/earthquake-reflecting capability引用本文复制引用
周启超,郭贵娟,蒋雨函,高小其,汪倩,彭莱..昌平地震台钻孔应变观测数据质量分析[J].地震地磁观测与研究,2024,45(2):90-100,11.基金项目
中央级公益性科研院所基本科研业务专项(项目编号:ZDJ2021-11) （项目编号:ZDJ2021-11）
中国地震局地质研究所国家野外科学观测研究站研究项目(项目编号:NORSCBS21-02) （项目编号:NORSCBS21-02）
