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DOI | 10.1029/2019GL082401 |
Multi-instrument Observation of Nonlinear EMIC-Driven Electron Precipitation at sub-MeV Energies | |
Hendry, A. T.1; Santolik, O.1,2; Kletzing, C. A.3; Rodger, C. J.4; Shiokawa, K.5; Baishev, D.6 | |
2019-07-16 | |
发表期刊 | GEOPHYSICAL RESEARCH LETTERS |
ISSN | 0094-8276 |
EISSN | 1944-8007 |
出版年 | 2019 |
卷号 | 46期号:13页码:7248-7257 |
文章类型 | Article |
语种 | 英语 |
国家 | Czech Republic; USA; New Zealand; Japan; Russia |
英文摘要 | In recent years, experimental results have consistently shown evidence of electromagnetic ion cyclotron (EMIC) wave-driven electron precipitation down to energies as low as hundreds of keV. However, this is at odds with the limits expected from quasi-linear theory. Recent analysis using nonlinear theory has suggested energy limits as low as hundreds of keV, consistent with the experimental results, although to date this has not been experimentally verified. In this study, we present concurrent observations from Polar-orbiting Operational Environmental Satellite, Radiation Belt Storm Probes, Global Positioning System, and ground-based instruments, showing concurrent EMIC waves and sub-MeV electron precipitation, and a global dropout in electron flux. We show through test particle simulation that the observed waves are capable of scattering electrons as low as hundreds of keV into the loss cone through nonlinear trapping, consistent with the experimentally observed electron precipitation. |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000476960100022 |
WOS关键词 | WAVES ; EMISSIONS |
WOS类目 | Geosciences, Multidisciplinary |
WOS研究方向 | Geology |
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/185041 |
专题 | 气候变化 |
作者单位 | 1.Inst Atmospher Phys, Dept Space Phys, Prague, Czech Republic; 2.Charles Univ Prague, Fac Math & Phys, Prague, Czech Republic; 3.Univ Iowa, Dept Phys & Astron, Iowa City, IA 52242 USA; 4.Univ Otago, Dept Phys, Dunedin, New Zealand; 5.Nagoya Univ, Inst Space Earth Environm Res, Nagoya, Aichi, Japan; 6.Russian Acad Sci, Siberian Branch, Yakut Sci Ctr, Yu G Shafer Inst Cosmophys Res & Aeron, Yakutsk, Russia |
推荐引用方式 GB/T 7714 | Hendry, A. T.,Santolik, O.,Kletzing, C. A.,et al. Multi-instrument Observation of Nonlinear EMIC-Driven Electron Precipitation at sub-MeV Energies[J]. GEOPHYSICAL RESEARCH LETTERS,2019,46(13):7248-7257. |
APA | Hendry, A. T.,Santolik, O.,Kletzing, C. A.,Rodger, C. J.,Shiokawa, K.,&Baishev, D..(2019).Multi-instrument Observation of Nonlinear EMIC-Driven Electron Precipitation at sub-MeV Energies.GEOPHYSICAL RESEARCH LETTERS,46(13),7248-7257. |
MLA | Hendry, A. T.,et al."Multi-instrument Observation of Nonlinear EMIC-Driven Electron Precipitation at sub-MeV Energies".GEOPHYSICAL RESEARCH LETTERS 46.13(2019):7248-7257. |
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