运用小波分析方法研究盐湖Ms4.4和河津Ms4.8地震前山西地区井水位变化特征  

Variation Characteristics of Well Water Level in Shanxi Area before the Ms 4.4 and Ms 4.8 Earthquakes in Salt Lake and Hejin by Wavelet Analysis

作　　者：窦立婷 李云[1,2] 成诚 耿伟[1,2] 平旗[1,2] DOU Li-ting;LI Yun;CHENG Cheng;GENG Wei;PING Qi(Changzhi Central Seismological Station of Earthquake Administration of Shanxi Province,Changzhi,Shanxi 046000,China;National Continental Rift Valley Dynamics Observatory of Taiyuan,Taiyuan,Shanxi 030025,China)

机构地区：[1]山西省地震局长治中心地震台,山西长治046000 [2]太原大陆裂谷动力学国家野外科学观测研究站,山西太原030025

出　　处：《山西地震》2018年第4期18-21,共4页Earthquake Research in Shanxi

基　　金：山西省地震局科研项目(SBK-1720)

摘　　要：运用小波变换及多尺度分析原理,对山西水位观测井在盐湖Ms4.4和河津Ms4.8地震前一年内整点值数据序列进行分析,将东郭井、介休井井水位资料中不同周期成分进行有效分离,小波变换分解后能够更直观地反映地震前兆异常现象,说明运用小波分析法处理水位资料是一种较有效的方法。Based on wavelet transform and multi-scale analysis principle,this paper analyzed the data series of integral hour values of Shanxi water level observation well in the year before the Salt Lake M s 4.4 and Hejin M s 4.8 earthquakes,and effectively separated the different periodic components from the water level data of Dongguo well and Jiexiu well.Wavelet transform decomposition can reflect earthquake precursory anomaly more intuitively and obviously.It shows that wavelet analysis is an effective method to deal with water level data.

关 键 词：井水水位 震前异常 小波分析 

分 类 号：P315.723[天文地球—地震学]