The evolution characteristics of geomagnetic disturbances during geomagnetic storms
文献类型：期刊论文
| 作者 | Wu Ying-Yan; Xu Wen-Yao; Chen Geng-Xiong; Chen Bo; Liu Xiao-Can |
| 刊名 | CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION
 |
| 出版日期 | 2007 |
| 卷号 | 50期号:1页码:1-9 |
| 关键词 | storm-time variation Dst index S(q) S(D) main phase S(q) focus |
| ISSN号 | 0001-5733 |
| 文献子类 | Article |
| 英文摘要 | With the data of the geomagnetic meridian observatories in China, 25 geomagnetic storms in the period of 1997 to 1999 have been analyzed by using three kinds of methods which are Natural Orthogonal Components (NOC), Correlation Analysis and Fourier Analysis. Three steps have been done to decompose the storm-time variation (Dst) correlating with the universal time (UT), the solar daily variation (S(q)) and the disturbance daily variation (S(D)) depending on the local solar time (LT). The results show that the spacial distribution and the temporal evolution characteristic of equatorial symmetric ning current are reflected clearly by Dst variation. The amplitude of S,, reached maximum or minimum during most main phases in MZL, BMT and QGZ observatories. It reflects the variation of the geomagnetic field from the motion of the S. focus with latitude. During main phases, the amplitude of SD was the largest. It decreased slowly during the recovery phase. Correlation Analysis and Fourier Analyses offer a useful way to extract the S(q) and S(D) variations. |
| WOS关键词 | MAGNETOSPHERIC CURRENTS ; CURRENT SYSTEM ; LOW LATITUDES ; FIELD ; DYNAMO ; SOLAR |
| WOS研究方向 | Geochemistry & Geophysics |
| 语种 | 英语 |
| WOS记录号 | WOS:000244338300001 |
| 出版者 | SCIENCE PRESS |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/68478]  |
| 专题 | 中国科学院地质与地球物理研究所 |
| 通讯作者 | Wu Ying-Yan |
| 作者单位 | 1.Chinese Acad Sci, Inst Geol & Geophys, Beijing 100029, Peoples R China 2.Chinese Acad Sci, Grad Sch, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wu Ying-Yan,Xu Wen-Yao,Chen Geng-Xiong,et al. The evolution characteristics of geomagnetic disturbances during geomagnetic storms[J]. CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION,2007,50(1):1-9. |
| APA | Wu Ying-Yan,Xu Wen-Yao,Chen Geng-Xiong,Chen Bo,&Liu Xiao-Can.(2007).The evolution characteristics of geomagnetic disturbances during geomagnetic storms.CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION,50(1),1-9. |
| MLA | Wu Ying-Yan,et al."The evolution characteristics of geomagnetic disturbances during geomagnetic storms".CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION 50.1(2007):1-9. |
入库方式： OAI收割
来源：地质与地球物理研究所
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