Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1029/2021GL095194 |
Simultaneous Observations of EMIC-induced drifting electron holes (EDEHs) in the Earth’s Radiation Belt by the Arase satellite, Van Allen Probes, and THEMIS | |
S. Nakamura; Y. Miyoshi; K. Shiokawa; Y. Omura; T. Mitani; T. Takashima; N. Higashio; I. Shinohara; T. Hori; S. Imajo; A. Matsuoka; F. Tsuchiya; A. Kumamoto; Y. Kasahara; M. Shoji; H. Spence; V. Angelopoulos | |
2022-02-16 | |
发表期刊 | Geophysical Research Letters |
出版年 | 2022 |
英文摘要 | We present an observation of rapid flux depressions in relativistic electrons, which is referred to as “EMIC-induced drifting electron holes (EDEHs)”. The Arase, Van Allen Probes, and THEMIS detected simultaneously electron flux fluctuations. The time variation of flux shows depressions of 1-min scale with energy dispersion, which appear only in the relativistic energy range and small pitch angles. These characteristics of the flux depression indicate that electromagnetic ion cyclotron waves caused pitch-angle scattering on a short time scale in a longitudinally limited region. The Arase satellite detected the local depression of the phase space density of 1000 MeV/G electron, indicating that EMIC waves cause the true loss of electrons. Tracing the energy dispersion profile of EDEHs, we show that EDEHs are formed at localized region in the dusk side. Multi-satellite observations demonstrate that a series of EDEHs eventually cause a substantial depression of the radiation belt on 1 hour timescale. |
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/346643 |
专题 | 气候变化 |
推荐引用方式 GB/T 7714 | S. Nakamura,Y. Miyoshi,K. Shiokawa,等. Simultaneous Observations of EMIC-induced drifting electron holes (EDEHs) in the Earth’s Radiation Belt by the Arase satellite, Van Allen Probes, and THEMIS[J]. Geophysical Research Letters,2022. |
APA | S. Nakamura.,Y. Miyoshi.,K. Shiokawa.,Y. Omura.,T. Mitani.,...&V. Angelopoulos.(2022).Simultaneous Observations of EMIC-induced drifting electron holes (EDEHs) in the Earth’s Radiation Belt by the Arase satellite, Van Allen Probes, and THEMIS.Geophysical Research Letters. |
MLA | S. Nakamura,et al."Simultaneous Observations of EMIC-induced drifting electron holes (EDEHs) in the Earth’s Radiation Belt by the Arase satellite, Van Allen Probes, and THEMIS".Geophysical Research Letters (2022). |
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