经验模态分解法在安徽省南部地下流体分析中的应用  

APPLICATION OF EMPIRICAL MODE DECOMPOSITION METHOD TO GROUNDWATER DATA IN SOUTH OF ANHUI PROVINCE

作　　者：孙盼盼[1] 张军[1] 方震[1] 陶月潮[1] 王俊[1] 

机构地区：[1]安徽省地震局,安徽合肥230031

出　　处：《高原地震》2014年第3期33-37,共5页Plateau Earthquake Research

基　　金：安徽省地震局合同制课题(201314)

摘　　要：首次引进经验模态分解法(EMD)对安徽省南部地下流体进行分析。通过对地下流体数据的分解与重构,发现该方法能提取不同尺度的水位动态,效果较好。通过对震例的总结发现:显著地震前、后安徽省南部地下流体EMD重构结果均出现异常,且存在某些地震前兆敏感点。同时,还对地震前地下流体的变化原因进行了初步分析。The empirical mode decomposition（ EMD） was firstly introduced to groundwater analysis in south of Anhui province in the paper. Through decomposing and reconstructing of the groundwater data,it is found that this method can extract different frequency of water well. Based on the application of earthquake examples： before or after some remarkable earthquakes,the reconstruction results appeared anomalies mostly,there are some sensitive points of earthquake precursors. And the reasons of the groundwater anomaly are also analyzed in the paper.

关 键 词：经验模态分解法 安徽省南部 地下流体 应用 

分 类 号：P315.72[天文地球—地震学]