An electrostatic model for nonlinear waves in the upper ionosphere
文献类型：会议论文
| 作者 | Shi, J. K. ; Xu, B. Y. ; Torkar, K. ; Zhang, T. L. ; Liu, Z. X. |
| 出版日期 | 2003 |
| 会议名称 | Conference on Future Trends and Needs in Science and Engineering for Plasma Physics in Space held at the 34th COSPAR Scientific Assembly |
| 会议日期 | 2003 |
| 会议地点 | Houston, Texas |
| 页码 | 303-308 |
| 通讯作者 | 北京8701信箱 |
| 英文摘要 | According to observations by the Freja satellite in the upper ionosphere, amplitudes of magnetic disturbances associated with observed density solitons are, only several 10(-2) nT or less. These very weak magnetic disturbances can be neglected against the ambient magnetic field of 0.2 Gauss in Freja's orbit region. In this paper we establish an electrostatic model for the nonlinear waves observed on board of Freja. The fluid equations are used and the "Sagdeev potential" is derived to study the nonlinear waves. The results show the existence not only of solitons with a density hump and solitons with a density dip, but also of periodic density waves and-density shock waves. The theoretic amplitudes of the solitons may vary between 20% and a factor of 2, which is consistent with the observations on board of Freja. Some waveforms of the solitons with a density dip are very similar to the observed ones. (C) 2003 COSPAR. Published by Elsevier Ltd. All rights reserved. |
| 收录类别 | CPCI |
| 会议网址 | |
| 会议录 | Advances in Space Research
 |
| 会议录出版者 | Pergamon-Elsevier Science Ltd |
| 学科主题 | 空间物理 |
| 会议录出版地 | KIDLINGTON |
| 语种 | 英语 |
| ISSN号 | 0273-1177 |
| 源URL | [http://ir.cssar.ac.cn/handle/122/944]  |
| 专题 | 国家空间科学中心_空间科学部 |
| 推荐引用方式 GB/T 7714 |
Shi, J. K.,Xu, B. Y.,Torkar, K.,et al. An electrostatic model for nonlinear waves in the upper ionosphere[C]. 见:Conference on Future Trends and Needs in Science and Engineering for Plasma Physics in Space held at the 34th COSPAR Scientific Assembly. Houston, Texas. 2003. |
入库方式： OAI收割
来源：国家空间科学中心
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