Ground magnetic characteristics of the storm-time ring current Asymmetry
文献类型:期刊论文
作者 | Wu YingYan1; Xu WenYao1; Chen GengXiong1; Chen Bo1,2; Liu XiaoCan1,2 |
刊名 | SCIENCE IN CHINA SERIES D-EARTH SCIENCES
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出版日期 | 2008-05-01 |
卷号 | 51期号:5页码:686-693 |
关键词 | geomagnetic storm ring current dawn-dusk asymmetry latitudinal variation |
ISSN号 | 1006-9313 |
DOI | 10.1007/s11430-008-0045-0 |
文献子类 | Article |
英文摘要 | Using the minute data of the H component of geomagnetic field from the 20 degrees E magnetic meridian chain and the 30 degrees N magnetic latitudinal chain, the temporal evolution characteristics of the equatorial ring current during the storm on November 7-10, 2004 are studied. It is indicated that the UT-MLT and UT-MLAT graphics extremely exhibit the local time distribution, latitudinal variation and temporal evolution of the H component. The results show: (1) The UT-MLT contour clearly shows the increasing of the H component mostly around noon during the initial phase, representing the geomagnetic effect from the magnetopause current system. During the main phase, most negative values of the H component appear around the dusk-side, indicating the dawn-dusk asymmetric distribution of the ring current. (2) The contour of UT-MLAT suggests the latitudinal variation of the H component decreasing with the enhancement of the latitudes during geomagnetic storm, which is in good agreement with the D(st) index. The latitudinal variations provide a new sight for describing the temporal characteristics of the intensity of the storm-time ring current. (3) Both the contours of UT-MLT and UT-MLAT are useful to monitor the space-time distribution of the equatorial ring current. |
WOS关键词 | MAGNETOSPHERIC CURRENTS ; GEOMAGNETIC STORM ; FIELD |
WOS研究方向 | Geology |
语种 | 英语 |
WOS记录号 | WOS:000255115600006 |
出版者 | SCIENCE PRESS |
源URL | [http://ir.iggcas.ac.cn/handle/132A11/70010] ![]() |
专题 | 中国科学院地质与地球物理研究所 |
通讯作者 | Wu YingYan |
作者单位 | 1.Chinese Acad Sci, Inst Geol & Geophys, Beijing 100029, Peoples R China 2.Grad Univ, Chinese Acad Sci, Beijing 100049, Peoples R China |
推荐引用方式 GB/T 7714 | Wu YingYan,Xu WenYao,Chen GengXiong,et al. Ground magnetic characteristics of the storm-time ring current Asymmetry[J]. SCIENCE IN CHINA SERIES D-EARTH SCIENCES,2008,51(5):686-693. |
APA | Wu YingYan,Xu WenYao,Chen GengXiong,Chen Bo,&Liu XiaoCan.(2008).Ground magnetic characteristics of the storm-time ring current Asymmetry.SCIENCE IN CHINA SERIES D-EARTH SCIENCES,51(5),686-693. |
MLA | Wu YingYan,et al."Ground magnetic characteristics of the storm-time ring current Asymmetry".SCIENCE IN CHINA SERIES D-EARTH SCIENCES 51.5(2008):686-693. |
入库方式: OAI收割
来源:地质与地球物理研究所
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