利用地倾斜固体潮汐资料提取异常的新方法  

A NEW METHOD OF ABNORMALITY INFORMATION EXTRACTION WITH EARTH TILT SOLID TIDE DATA

作　　者：武安绪[1] 张永仙[2] 张晓东[2] 穆哙泳[1] 李平安[1] 张中武[1] 鲁亚军[1] 

机构地区：[1]北京市地震局,北京100080 [2]中国地震台网中心,北京100045

出　　处：《东北地震研究》2008年第2期24-28,共5页Seismological Research of Northeast China

基　　金：国家科技攻关项目(2006BAC01B03-04-04;03-02-03);地震科学联合基金项目(A07058);地震行业科研专项(200708006)资助

摘　　要：地倾斜固体潮分析中根据固体潮汐的畸变、趋势、上升、下降、转折等变化特征,提取地震前兆异常信息。本文基于地倾斜固体潮汐可计算的特点和时程变化特征,提出一种新的地倾斜异常提取定量方法和指标。经过对延庆地倾斜固体潮观测资料的初步分析表明,预测误差比特征参量在中强地震前存在明显的前兆变化,说明预测误差比特征参量的计算模型是合理的,结果是有意义的。The seismic precursor abnormal information extraction of tilt solid tide usually based on the distortion, tendency, elevation, fall, break and so on characteristics of solid tide. A new quantitative method and index have been bring forward based calculable characteristic and time variety character of tilt solid tide. According to the real processing and experiment analysis of the Yanqing station＇s earth tilt solid tide data, the result shows that the prediction error ratio parameter between solid tide observation and theoretical value objectively has obvious precursor variation before moderately strong earthquake, its model is reason and the results has significance.

关 键 词：地倾斜固体潮 预测误差比 地震前兆 

分 类 号：P315.7[天文地球—地震学]