DOI: 10.1029/2017JA024782
Scopus记录号: 2-s2.0-85047601431
论文题名: Generation Process of Large-Amplitude Upper-Band Chorus Emissions Observed by Van Allen Probes
作者: Kubota Y. ; Omura Y. ; Kletzing C. ; Reeves G.
刊名: Journal of Geophysical Research: Space Physics
ISSN: 21699380
出版年: 2018
卷: 123, 期: 5 起始页码: 3704
结束页码: 3713
语种: 英语
英文关键词: chorus
; energetic electrons
; nonlinear wave-particle interaction
; observation
; radiation belt
; Van Allen Probes
英文摘要: We analyze large-amplitude upper-band chorus emissions measured near the magnetic equator by the Electric and Magnetic Field Instrument Suite and Integrated Science instrument package on board the Van Allen Probes. In setting up the parameters of source electrons exciting the emissions based on theoretical analyses and observational results measured by the Helium Oxygen Proton Electron instrument, we calculate threshold and optimum amplitudes with the nonlinear wave growth theory. We find that the optimum amplitude is larger than the threshold amplitude obtained in the frequency range of the chorus emissions and that the wave amplitudes grow between the threshold and optimum amplitudes. In the frame of the wave growth process, the nonlinear growth rates are much greater than the linear growth rates. ©2018. American Geophysical Union. All Rights Reserved. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/113940
Appears in Collections: 气候减缓与适应
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作者单位: Research Institute for Sustainable Humanosphere, Kyoto University, Kyoto, Japan; Department of Physics and Astronomy, University of Iowa, Iowa City, IA, United States; Space Science and Applications Group, Los Alamos National Laboratory, Los Alamos, NM, United States
Recommended Citation:
Kubota Y.,Omura Y.,Kletzing C.,et al. Generation Process of Large-Amplitude Upper-Band Chorus Emissions Observed by Van Allen Probes[J]. Journal of Geophysical Research: Space Physics,2018-01-01,123(5)