A statistical analysis of the electron number density fluctuations near the plasmapause based on Van Allen Probes observations
文献类型：期刊论文
| 作者 | Wang YuYouTing3,4; Zhang XiaoXin4; He Fei2; Lin RuiLin1; Lu JingTian4 |
| 刊名 | CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION
 |
| 出版日期 | 2020-06-01 |
| 卷号 | 63期号:6页码:2141-2148 |
| 关键词 | Plasmapause Density fluctuations Statistical analysis Average power spectrum Fast Fourier transform |
| ISSN号 | 0001-5733 |
| DOI | 10.6038/cjg2020O0096 |
| 英文摘要 | Based on observations (September 2012 to November 2015) from the Van Allen Probes (VAP), 584 plasmapause density fluctuation events are collected. The electron density deduced from the high frequency receiver is used to calculate the wave spectrum at different magnetic local time (MLT), L-shell, and geomagnetic activity. Statistical results show that the electron density fluctuation events at the plasmapause mainly occur in the twilight sectors and the spatial distribution varies with MLT and geomagnetic activity. The power spectral density of the plasmapause electron density fluctuations has a slope of 5/3 between 1 mHz and 100 mHz, indicating the presence of two-dimensional magnetohydrodynamic turbulence. The above results will shed light on further understanding of the specific role of density fluctuations on the energy transfer near the plasmapause, and will further promote researches on the excitation, enhancement and propagation of the plasmapause fluctuations. |
| WOS关键词 | MAGNETOHYDRODYNAMIC WAVES ; RADIATION BELT ; IRREGULARITIES ; PLASMASPHERE ; MORPHOLOGY ; GRADIENTS ; DYNAMICS |
| WOS研究方向 | Geochemistry & Geophysics |
| 语种 | 英语 |
| WOS记录号 | WOS:000537729300003 |
| 出版者 | SCIENCE PRESS |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/96639]  |
| 专题 | 地质与地球物理研究所_中国科学院地球与行星物理重点实验室 |
| 通讯作者 | He Fei |
| 作者单位 | 1.Chinese Acad Sci, Natl Space Sci Ctr, Beijing 100190, Peoples R China 2.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Earth & Planetary Phys, Beijing 100029, Peoples R China 3.Chinese Acad Meteorol Sci, Beijing 100081, Peoples R China 4.China Meteorol Adm, Natl Ctr Space Weather, Key Lab Space Weather, Beijing 100081, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wang YuYouTing,Zhang XiaoXin,He Fei,et al. A statistical analysis of the electron number density fluctuations near the plasmapause based on Van Allen Probes observations[J]. CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION,2020,63(6):2141-2148. |
| APA | Wang YuYouTing,Zhang XiaoXin,He Fei,Lin RuiLin,&Lu JingTian.(2020).A statistical analysis of the electron number density fluctuations near the plasmapause based on Van Allen Probes observations.CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION,63(6),2141-2148. |
| MLA | Wang YuYouTing,et al."A statistical analysis of the electron number density fluctuations near the plasmapause based on Van Allen Probes observations".CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION 63.6(2020):2141-2148. |
入库方式： OAI收割
来源：地质与地球物理研究所
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