Quasiperiodic Rising Structures in the E-F Valley Region Below the Equatorial Plasma Bubble: A Numerical Study
文献类型：期刊论文
| 作者 | Savio, S.; Sousasantos, J.; Pimenta, A. A.; Yang, G.; Kherani, E. A.; Wang, C.; Liu, Z. |
| 刊名 | JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS
 |
| 出版日期 | 2019 |
| 卷号 | 124期号:8页码:7247-7255 |
| 关键词 | Numerical simulation Equatorial plasma irregularities Equatorial QuasiPeriodic echoes |
| ISSN号 | 2169-9380 |
| DOI | 10.1029/2019JA026620 |
| 英文摘要 | This paper presents a numerical study aiming to understand the generating mechanism of poorly studied equatorial plasma irregularities known as equatorial quasiperiodic echoes. Employing a two-dimensional model of the collisional interchange instability, the simulations are able to reproduce the spatial periodic features of this kind of irregular structures. The usage of an instability seeding source considering an overlap of two gravity waves with different wavelengths was capable to produce such quasiperiodic structures. The results suggest that the penetration of the equatorial plasma bubble fringe fields in typical altitudes of the valley region may be the physical mechanism responsible for the structures. Additionally, the simulation results indicate that the lower wavelength gravity wave dominates over the quasiperiodic nature of the these irregularities. The simulations results present considerable agreement with radar and in situ measurements of these quasiperiodic structures. |
| 语种 | 英语 |
| 源URL | [http://ir.nssc.ac.cn/handle/122/7199]  |
| 专题 | 国家空间科学中心_空间科学部 |
| 推荐引用方式 GB/T 7714 | Savio, S.,Sousasantos, J.,Pimenta, A. A.,et al. Quasiperiodic Rising Structures in the E-F Valley Region Below the Equatorial Plasma Bubble: A Numerical Study[J]. JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS,2019,124(8):7247-7255. |
| APA | Savio, S..,Sousasantos, J..,Pimenta, A. A..,Yang, G..,Kherani, E. A..,...&Liu, Z..(2019).Quasiperiodic Rising Structures in the E-F Valley Region Below the Equatorial Plasma Bubble: A Numerical Study.JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS,124(8),7247-7255. |
| MLA | Savio, S.,et al."Quasiperiodic Rising Structures in the E-F Valley Region Below the Equatorial Plasma Bubble: A Numerical Study".JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS 124.8(2019):7247-7255. |
入库方式： OAI收割
来源：国家空间科学中心
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