An improved method to deduce the unloading component for magnetospheric substorms
文献类型：期刊论文
| 作者 | Sun, W; Xu, WY; Akasofu, SI |
| 刊名 | JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS
 |
| 出版日期 | 2000-06-01 |
| 卷号 | 105期号:A6页码:13131-13140 |
| ISSN号 | 0148-0227 |
| 文献子类 | Article |
| 英文摘要 | Because our earlier analysis [Sun ed al., 1998] confirmed that the directly driven component prevails during the growth phase, an attempt has been made in this paper to deduce the unloading component as accurately as possible. First, the directly driven pattern is determined by taking the average of patterns of the equivalent current function during the growth phase of substorms, then the correlation method is applied to calculate time variations of the magnitude of the directly driven component. Next, the method of natural orthogonal components is used to analyze the residual Dart, which equals the difference between the total current and the directly driven component. In the present method, the pattern and the magnitude of the unloading component are much improved. The correction in the magnitude of two components is similar to 50%. Time variations of the magnitude of the unloading component thus obtained will be crucial in understanding the unloading process. The effect of the variable directly driven pattern, which is similar to 11%, of the magnitude of the directly driven component, also has been estimated quantitatively. This improved method has the advantage of allowing study of individual substorms over the earlier method. |
| WOS研究方向 | Astronomy & Astrophysics |
| 语种 | 英语 |
| WOS记录号 | WOS:000087351900049 |
| 出版者 | AMER GEOPHYSICAL UNION |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/75774]  |
| 专题 | 中国科学院地质与地球物理研究所 |
| 通讯作者 | Sun, W |
| 作者单位 | 1.Univ Alaska Fairbanks, Inst Geophys, Fairbanks, AK 99775 USA 2.Chinese Acad Sci, Inst Geophys, Beijing 100101, Peoples R China 3.Univ Alaska Fairbanks, Int Arctic Res Ctr, Fairbanks, AK 99775 USA |
| 推荐引用方式 GB/T 7714 | Sun, W,Xu, WY,Akasofu, SI. An improved method to deduce the unloading component for magnetospheric substorms[J]. JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS,2000,105(A6):13131-13140. |
| APA | Sun, W,Xu, WY,&Akasofu, SI.(2000).An improved method to deduce the unloading component for magnetospheric substorms.JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS,105(A6),13131-13140. |
| MLA | Sun, W,et al."An improved method to deduce the unloading component for magnetospheric substorms".JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS 105.A6(2000):13131-13140. |
入库方式： OAI收割
来源：地质与地球物理研究所
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