A modeling study of interplanetary-equatorial electric field penetration efficiency
文献类型：期刊论文
| 作者 | Wei Yong1,2,3; Hong Ming-Hua1; Wan Wei-Xing1; Du Ai-Min1 |
| 刊名 | CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION
 |
| 出版日期 | 2008-09-01 |
| 卷号 | 51期号:5页码:1279-1284 |
| 关键词 | solar wind-magnetosphere-ionosphere coupling interplanetary electric field electric field penetration |
| ISSN号 | 0001-5733 |
| 文献子类 | Article |
| 英文摘要 | As an important way of solar wind-magnetosphere-ionosphere coupling during strong geomagnetic activity period, electric field penetration has been an active topic in space physics for many years. In the past four decades, many researchers were interested in the observational evidence and theoretic modeling to search for the physical mechanism, however, the "electric field penetration efficiency", which is supposed to be an important quantitative index, has received less attention. Defining the penetration efficiency as the ratio of equatorial electric field increment to the corresponding interplanetary electric field increment, this paper alms to discuss the local time dependence of electric field penetration efficiency and its relation to neutral wind. Our result of numerical modeling suggests that: (1) Without considering transpolar potential saturation, equatorial electric field increment linearly responds to IEF increment, and neutral wind does not affect the penetration efficiency; (2) Assuming constant magnetic reconnection length L=2. 6 R-E, the local time dependence of penetration efficiency can be described as follows: it is about 10% between 9 and 23LT, however, increases rapidly from 2% up to 30% and decreases quickly to 2% between 0 and 7LT. All above characteristics are basically consistent with observations. |
| WOS关键词 | ALIGNED CURRENTS ; SYSTEM ; SCALE |
| WOS研究方向 | Geochemistry & Geophysics |
| 语种 | 英语 |
| WOS记录号 | WOS:000259591000001 |
| 出版者 | SCIENCE CHINA PRESS |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/68870]  |
| 专题 | 中国科学院地质与地球物理研究所 |
| 通讯作者 | Wei Yong |
| 作者单位 | 1.Chinese Acad Sci, Inst Geol & Geophys, Beijing Observ Space Environm, Beijing 100029, Peoples R China 2.Chinese Acad Sci, Wuhan Inst Phys & Math, Wuhan 430071, Peoples R China 3.Chinese Acad Sci, Grad Sch, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wei Yong,Hong Ming-Hua,Wan Wei-Xing,et al. A modeling study of interplanetary-equatorial electric field penetration efficiency[J]. CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION,2008,51(5):1279-1284. |
| APA | Wei Yong,Hong Ming-Hua,Wan Wei-Xing,&Du Ai-Min.(2008).A modeling study of interplanetary-equatorial electric field penetration efficiency.CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION,51(5),1279-1284. |
| MLA | Wei Yong,et al."A modeling study of interplanetary-equatorial electric field penetration efficiency".CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION 51.5(2008):1279-1284. |
入库方式： OAI收割
来源：地质与地球物理研究所
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