地磁场子夜均值逐日动态演化特征及与汶川大地震关系研究

英文篇名：Study on the Dynamic Characteristics of Daily Midnight Average Value of Geomagnetic Field and its Relationship with the Wenchuan Earthquake
中文刊名：国际地震动态
英文刊名：Recent Developments in World Seismology
作者：张建国 ; 陈化然 ; 刘晓灿
英文作者：Zhang Jianguo1) ; Chen Huaran2) and Liu Xiaocan2) 1) Handan Central Seismic Station of Hebei Province ; Handan 056006 ; China 2) Institute of Geophysics ; CEA ; Beijing 100081 ; China
中文关键词：汶川8.0级大地震 ; 地磁场动态模式 ; 异常场逐日演化特征
英文关键词：Wenchuan MS8.0 earthquake ; dynamic model of geomagnetic fieldl ; characters of diurnal-variation anomalies of geomagnetic field
出版日期：2009-07-25
机构：河北省地震局邯郸地震中心台;中国地震局地球物理研究所;
年：2009
期：07
出版单位：国际地震动态

摘要

利用我国地磁台网每天的"子夜均值"资料,应用高性能计算技术,建立中国地磁场动态演化模式,研究汶川5.12地震前后中国地磁异常场逐日演化特征。结果表明:地震前后地磁异常场变化特性较明显,在时间上有显著的阶段性特征,这可能反映了地震不同孕育阶段的特征。
Based on parallel computing technology,firstly to establish a dynamic model of the variation of geomagnetic field in China,the characters of diurnal-variation anomalies of geomagnetic field before and after Wenchuan MS8.0 earthquake are studied.The results show abnormal changes in geomagnetic field are taken place obviously before and after Wenchuan earthquake.It may reflect the different stages of earthquake preparation process.

引文

[1]陈化然,杨冬梅,李琪,等.1980年以来我国电磁辐射地震前兆信息的观测与研究.中国地震,2008,24(2):180-187
[2]包德修,仁道,马伟林,等.地震电磁信息的偶电体模型.中国地震,1991,7(4):83-86
[3]Lucas B D,Kanade T.An iterative image registratiotechnique with an application to stereo vision.Proceedingsothe 1981 DARPA Image Understanding Workshop,April 1981:121-130