泰安台固体潮平行观测一致性分析及对异常判定的意义  

Correlation analysis of the parallel tidal observation at Tai'an station and its significance for anomaly judgments

作　　者：王梅[1] 牛安福[2] 季爱东[3] 毛玉华[3] 

机构地区：[1]中国科技大学,安徽合肥230029 [2]中国地震台网中心,北京100036 [3]山东省地震局,山东济南250014

出　　处：《地震》2007年第4期43-50,共8页Earthquake

基　　金：十五国家科技攻关项目(2004BA601B-03-02);山东省地震局合同制项目(2006)

摘　　要：对山东省泰安基准台固体潮形变观测各分量的曲线形态、潮汐参数等进行了对比分析,认为各分量观测中不同类型仪器之间有较好的同比性,相关性较高。结合仪器频响特征,对几次突出变化的异常性质进行了综合分析,认为均与仪器或局部环境变化有关,不是地震异常。表明在台基良好的条件下,平行观测在异常识别中有重要意义。The curve shape and tidal parameter （mainly phase lag） of parallel observation of different components, observed at Tai＇an station, have been compared with each other in this paper. The results show a great correlation between parallel observations of different instruments. Considering the frequency response traits of each kind of instruments, several remarkable deformation changes recorded by different instruments have been analyzed synthetically. Instead of earthquake anomalies, the characteristics of these changes all indicate that they were caused by the instabilities of instruments or partly change of observational condition. The study manifested the significance for the judgments of earthquake anomaly by parallel observation.

关 键 词：固体潮 相关性 异常判定 

分 类 号：P315.7[天文地球—地震学]