Characteristics of geomagnetic regular diurnal variation before Wenchuan earthquake

doi:10.6038/cjg20160317

CORC > 地质与地球物理研究所 > 中国科学院地质与地球物理研究所 > 中国科学院地球与行星物理重点实验室

	Characteristics of geomagnetic regular diurnal variation before Wenchuan earthquake
	Zhang Ling 1; Du Ai-Min 2; Lang Xue 2,3; Zhang Tie-Long 4; Yang Dong-Mei 5; Zhao Xu-Dong 5
刊名	CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION
	2016-03-01
卷号	59 期号:3 页码:952-958
关键词	Wenchuan earthquake Geomagnetic diurnal variation Conductivity inner the Earth
DOI	10.6038/cjg20160317
文献子类	Article
英文摘要	The characteristics of the geomagnetic daily variation before the Wenchuan earthquake (M-L= 8) occurring on 2008 May 12 are analyzed by using of the data from ground-based geomagnetic array. The variation of the electromagnetic induced field associated with the geomagnetic daily variation is also discussed. The conclusions are: 1) The morphological characteristics of the geomagnetic diurnal variations observed by Chengdu station (CDP) are similar to that observed by other stations; 2) The ratio of Z/H at CDP is greater than that observed by other neighbor stations, with a maximum of Z/H (>2.5)on April 20; 3) The ratio of Z/H at CDP and Z/H at ENS, RCDP/ENS, increases from April 6, reaches a maximum on April 20, then decreases till May 12. The tendency of variations of RCDP/ENS is more apparent for geomagnetic variations with period of 2-4 h. These results indicate that the geomagnetic variation at CDP is partly associated with the conductivity inner the Earth.
WOS研究方向	Geochemistry & Geophysics
语种	英语
WOS记录号	WOS:000371754700017
内容类型	期刊论文
源URL	[http://ir.iggcas.ac.cn/handle/132A11/62016]
专题	地质与地球物理研究所_中国科学院地球与行星物理重点实验室
作者单位	1.Natl Earthquake Response Support Serv, Beijing 100049, Peoples R China 2.Chinese Acad Sci, Inst Geol & Geophys, Beijing 100029, Peoples R China 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 4.Austrian Acad Sci, Space Res Inst, A-8010 Graz, Austria 5.China Earthquake Adm, Inst Geophys, Beijing 100081, Peoples R China
推荐引用方式 GB/T 7714	Zhang Ling,Du Ai-Min,Lang Xue,et al. Characteristics of geomagnetic regular diurnal variation before Wenchuan earthquake[J]. CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION,2016,59(3):952-958.
APA	Zhang Ling,Du Ai-Min,Lang Xue,Zhang Tie-Long,Yang Dong-Mei,&Zhao Xu-Dong.(2016).Characteristics of geomagnetic regular diurnal variation before Wenchuan earthquake.CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION,59(3),952-958.
MLA	Zhang Ling,et al."Characteristics of geomagnetic regular diurnal variation before Wenchuan earthquake".CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION 59.3(2016):952-958.