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DOI | 10.1029/2018GL080635 |
Nonlinear Coupling Between Whistler-Mode Chorus and Electron Cyclotron Harmonic Waves in the Magnetosphere | |
Gao, Zhonglei1,2; Su, Zhenpeng3,4,5; Xiao, Fuliang2; Summers, Danny6; Liu, Nigang3,4,5; Zheng, Huinan3,4,5; Wang, Yuming3,4,5; Wei, Fengsi1; Wang, Shui3,4,5 | |
2018-12-16 | |
发表期刊 | GEOPHYSICAL RESEARCH LETTERS |
ISSN | 0094-8276 |
EISSN | 1944-8007 |
出版年 | 2018 |
卷号 | 45期号:23页码:12685-12693 |
文章类型 | Article |
语种 | 英语 |
国家 | Peoples R China; Canada |
英文摘要 | Electromagnetic whistler-mode chorus and electrostatic electron cyclotron harmonic (ECH) waves can contribute significantly to auroral electron precipitation and radiation belt electron acceleration. In the past, linear and nonlinear wave-particle interactions have been proposed to explain the occurrences of these magnetospheric waves. By analyzing Van Allen Probes data, we present here the first evidence for nonlinear coupling between chorus and ECH waves. The sum-frequency and difference-frequency interactions produced the ECH sidebands with discrete frequency sweeping structures exactly corresponding to the chorus rising tones. The newly generated weak sidebands did not satisfy the original electrostatic wave dispersion relation. After the generation of chorus and normal ECH waves by hot electron instabilities, the nonlinear wave-wave interactions could additionally redistribute energy among the resonant waves, potentially affecting to some extent the magnetospheric electron dynamics. |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000454296600005 |
WOS关键词 | SHEATH IMPEDANCE ; PLASMA-WAVE ; ACCELERATION ; GENERATION ; SCATTERING ; DIFFUSION ; EMISSIONS ; AMPLITUDE ; DYNAMICS ; PARTICLE |
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/25554 |
专题 | 气候变化 |
作者单位 | 1.Harbin Inst Technol, Inst Space Sci & Appl Technol, Shenzhen, Peoples R China; 2.Changsha Univ Sci & Technol, Sch Phys & Elect Sci, Changsha, Hunan, Peoples R China; 3.Univ Sci & Technol China, Dept Geophys & Planetary Sci, CAS Key Lab Geospace Environm, Hefei, Anhui, Peoples R China; 4.Univ Sci & Technol China, Collaborat Innovat Ctr Astronaut Sci & Technol, Hefei, Anhui, Peoples R China; 5.CAS Ctr Excellence Comparat Planetol, Hefei, Anhui, Peoples R China; 6.Mem Univ Newfoundland, Dept Math & Stat, St John, NF, Canada |
推荐引用方式 GB/T 7714 | Gao, Zhonglei,Su, Zhenpeng,Xiao, Fuliang,et al. Nonlinear Coupling Between Whistler-Mode Chorus and Electron Cyclotron Harmonic Waves in the Magnetosphere[J]. GEOPHYSICAL RESEARCH LETTERS,2018,45(23):12685-12693. |
APA | Gao, Zhonglei.,Su, Zhenpeng.,Xiao, Fuliang.,Summers, Danny.,Liu, Nigang.,...&Wang, Shui.(2018).Nonlinear Coupling Between Whistler-Mode Chorus and Electron Cyclotron Harmonic Waves in the Magnetosphere.GEOPHYSICAL RESEARCH LETTERS,45(23),12685-12693. |
MLA | Gao, Zhonglei,et al."Nonlinear Coupling Between Whistler-Mode Chorus and Electron Cyclotron Harmonic Waves in the Magnetosphere".GEOPHYSICAL RESEARCH LETTERS 45.23(2018):12685-12693. |
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