摘要
介绍平凉中心地震台地电场观测系统,对观测资料的连续率、完整率、观测精度(包括相关系数和差值)、变化形态、频谱特征、长短极距的相关性、矢量性等方面进行分析和讨论。结果表明:平凉地震台地电场观测数据质量符合相关技术规范要求,能较好地反应区域地电场的变化特征,并分析平凉台周围中强地震与地电场异常变化的关系。
Introduced the geo-electric field observation system in Pingliang center seismic station, analyzed and discussed the continuous rate, complete rate, observation accuracy （including correla- tion coefficient and difference） , the shape of normal daily variation, the frequency spectral character- istics, the correlation and vector properties of the geo-electric field observation data. Results showed that the geo-electric field observation data quality of Pingliang seismic station meet the regulatory re- quirements, and it can reflect the temporal and spatial variation of the geo-electric field. We analyzed the relationship between the moderate or strong earthquakes occurred near Pingliang station and a- nomalies characteristics of the geo-electric field.
作者
张远富
赵斐
李旭升
杨晓鹏
尹欣欣
ZHANG Yuan-fu1, ZHAO Fei1, LI Xu-sheng1 , YANG Xiao-peng1, YIN Xin-xin2(1. Pingliang Center Seismic Station of Gansu Earthquake Agency, Pingliang 744000, Gansu, China ; 2. Gansu Earthquake Agency,Lanzhou 730000,Gansu, Chin)
出处
《内陆地震》
2018年第1期24-32,共9页
Inland Earthquake
基金
中国地震局监测
预测
科研三结合课题(162805)
关键词
地电场
平凉地震台
频谱特征
地电异常
Geo-electric field
Pingliang station
Frequency spectral characteristics
Geo-electricfield Anomalies
