Decomposition of daily geomagnetic variations by using method of natural orthogonal component
文献类型：期刊论文
| 作者 | Xu, WY; Kamide, Y |
| 刊名 | JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS
 |
| 出版日期 | 2004-05-25 |
| 卷号 | 109期号:A5 |
| 关键词 | daily magnetic variation S-q day-to-day (DTD) variation natural orthogonal components (NOC) current system |
| ISSN号 | 0148-0227 |
| DOI | 10.1029/2003JA010216 |
| 文献子类 | Article |
| 英文摘要 | In this paper the method of natural orthogonal components (NOC) is utilized to decompose the daily magnetic variation, expressing the variation as a summation of the eigenmodes. The results show that the first and second NOC eigenmodes represent the solar quiet daily variation, S-q, and the disturbance-daily variation, S-D, respectively. The third and fourth eigenmodes may be related to specific currents in the magnetosphere. Remarkable day-to-day (DTD) variations exist in the amplitudes of the eigenmodes. The combination of the eigenmodes reproduces the complicated characteristics in the DTD variation of the daily magnetic variation. The decomposition of the daily magnetic variation presented in this paper is helpful for understanding the mechanism of the daily variation and its DTD variation. In addition, this decomposition method provides a ground-based monitoring of the current systems in several important regions of the near-Earth space. |
| WOS关键词 | SOLAR DAILY VARIATIONS ; TO-DAY VARIABILITY ; CURRENT SYSTEMS ; DISTURBANCE FIELD ; HIGH-LATITUDES ; SUBSTORMS ; CURRENTS ; LUNAR ; TIDES ; SQ |
| WOS研究方向 | Astronomy & Astrophysics |
| 语种 | 英语 |
| WOS记录号 | WOS:000221912200001 |
| 出版者 | AMER GEOPHYSICAL UNION |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/79421]  |
| 专题 | 中国科学院地质与地球物理研究所 |
| 通讯作者 | Xu, WY |
| 作者单位 | 1.Chinese Acad Sci, Inst Geol & Geophys, Beijing 100029, Peoples R China 2.Nagoya Univ, Solar Terr Environm Lab, Toyokawa 4428507, Japan |
| 推荐引用方式 GB/T 7714 | Xu, WY,Kamide, Y. Decomposition of daily geomagnetic variations by using method of natural orthogonal component[J]. JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS,2004,109(A5). |
| APA | Xu, WY,&Kamide, Y.(2004).Decomposition of daily geomagnetic variations by using method of natural orthogonal component.JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS,109(A5). |
| MLA | Xu, WY,et al."Decomposition of daily geomagnetic variations by using method of natural orthogonal component".JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS 109.A5(2004). |
入库方式： OAI收割
来源：地质与地球物理研究所
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