Variations of inner magnetospheric currents during the magnetic storm of May 1998
文献类型：期刊论文
| 作者 | Chen, HF; Xu, WY |
| 刊名 | CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION
 |
| 出版日期 | 2001-07-01 |
| 卷号 | 44期号:4页码:490-499 |
| 关键词 | magnetosphere-ionospheric current systems magnetic storm substorm inner magnetosphere |
| ISSN号 | 0001-5733 |
| 文献子类 | Article |
| 英文摘要 | Transient variations of the geomagnetic field at low latitudes are mainly caused by the current system such as ionospheric dynamo current (IDC), symmetric ring current (SRC), partial ring current-region II field aligned current-ionospheric current system (PRFI). On the other hand, the region I field aligned current ionospheric current system (FACI) cannot be ignored. In this paper, we analyze the variations of the current systems during the large storm on May 1-6, 1998. Firstly, the S-q - field caused by IDC is calculated by using several station pairs, and removed. Then, the fields of other sources are separated by fitting data to their field models. Results show that (1) The storm has two steps, during May1-3, PRFI and FACI were not developed significantly, they became strong during the substorms of May 4-5. (2) The variation of SRC is similar to D-st variation during the first step and delays to D-st in the second step. (3) In the second step, PRFI is developed before SRC, and SRC depresses associated with the PRFI and FACI recovery. It gives a clue to understand the formation of the ring current and field-aligned currents and their relationship. |
| WOS关键词 | RING CURRENT ; FIELD |
| WOS研究方向 | Geochemistry & Geophysics |
| 语种 | 英语 |
| WOS记录号 | WOS:000170181000007 |
| 出版者 | SCIENCE PRESS |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/77059]  |
| 专题 | 中国科学院地质与地球物理研究所 |
| 通讯作者 | Chen, HF |
| 作者单位 | Chinese Acad Sci, Inst Geol & Geophys, Beijing 100101, Peoples R China |
| 推荐引用方式 GB/T 7714 | Chen, HF,Xu, WY. Variations of inner magnetospheric currents during the magnetic storm of May 1998[J]. CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION,2001,44(4):490-499. |
| APA | Chen, HF,&Xu, WY.(2001).Variations of inner magnetospheric currents during the magnetic storm of May 1998.CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION,44(4),490-499. |
| MLA | Chen, HF,et al."Variations of inner magnetospheric currents during the magnetic storm of May 1998".CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION 44.4(2001):490-499. |
入库方式： OAI收割
来源：地质与地球物理研究所
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