Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1029/2020GL091494 |
Effects of ion slippage in Earth’s ionosphere and the plasma sheet | |
Wenrui Wang; Jian Yang; Yukitoshi Nishimura; Richard A. Wolf; Frank R. Toffoletto; Vassilis Angelopoulos; David Knudsen; Eric Donovan; Jun Cui | |
2021-01-19 | |
发表期刊 | Geophysical Research Letters |
出版年 | 2021 |
英文摘要 | Although triggering mechanisms for substorm onsets remain highly controversial, consensus has reached that violation of frozen‐in flux condition in the central plasma sheet is required. In this study, we carry out a numerical gedanken experiment to investigate the effects of the violation by assuming ions slip with respect to the magnetic field lines in the late substorm growth phase while electrons remain magnetized, without specifying the microphysics. The simulation results predict (1) a thin arc and a strong westward electrojet associated with downward‐upward‐downward field‐aligned currents and westward‐eastward‐westward horizontal flows in the ionosphere, which are found to be consistent with a pre‐onset arc observed by the Swarm and the all‐sky imager; (2) a rapid creation of a bubble‐blob pair in the plasma sheet with a tailward hump of Bz that may lead to tearing instability. |
领域 | 气候变化 |
URL | 查看原文 |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/313692 |
专题 | 气候变化 |
推荐引用方式 GB/T 7714 | Wenrui Wang,Jian Yang,Yukitoshi Nishimura,等. Effects of ion slippage in Earth’s ionosphere and the plasma sheet[J]. Geophysical Research Letters,2021. |
APA | Wenrui Wang.,Jian Yang.,Yukitoshi Nishimura.,Richard A. Wolf.,Frank R. Toffoletto.,...&Jun Cui.(2021).Effects of ion slippage in Earth’s ionosphere and the plasma sheet.Geophysical Research Letters. |
MLA | Wenrui Wang,et al."Effects of ion slippage in Earth’s ionosphere and the plasma sheet".Geophysical Research Letters (2021). |
条目包含的文件 | 条目无相关文件。 |
除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。
修改评论