华北地区定点台站形变资料分析

英文篇名：ANALYSIS OF DEFORMATION DATA FROM FIXED-STATION IN NORTH CHINA
中文刊名：大地测量与地球动力学
英文刊名：Journal of Geodesy and Geodynamics
作者：孙东颖 ; 张风霜 ; 郭良迁
英文作者：Sun Dongying ; Zhang Fengshuang and Guo Liangqian(First Crust Monitoring and Application Center ; CEA ; Tianjin 300180)
中文关键词：华北地区 ; 形变 ; 台站 ; 跨断层 ; 地震异常
英文关键词：North China aera ; deformation ; station ; crossing-fault ; anomaly
出版日期：2012-08-15
机构：中国地震局第一监测中心;
年：2012
期：S1
出版单位：大地测量与地球动力学

摘要

对华北地区定点台站形变观测资料,采用傅立叶去年周期和线性拟合的方法进行处理。结果表明,华北地区现阶段的变化未形成主体异常时段,反映出断层未进入强烈活动阶段;首都圈地区跨断层资料异常数量不多,没有形成同步异常,异常变化幅值也不是很大,中短临地震异常不明显。
This paper analyzes deformation data from the fixed-stations in North China,and 61 mobile measuring lines in Capital Circle area(short leveling,short baseline),and the cut-off time for all the data is August,2011.The methods of Fourier Transform removing annual cycle and linear fitting are used for processing the data.The results suggest,at present stage,the changes in North China do not form the principal anomaly,which reflects that the faults do not come into the stage of strong activity.The anomaly quantity of the crossing fault data in Capital Circle area is a little,and not synchronous,also the amplitude of abnormal variation is not large,the variation morphology of several abnormal curves is not significant,so there probably does not exist the medium-short-impending anomaly to some extent.

引文

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