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DOI | 10.1029/2019GL083833 |
Nonlinear Electron Interaction With Intense Chorus Waves: Statistics of Occurrence Rates | |
Zhang, X. -J.1,2; Mourenas, D.3; Artemyev, A. V.1,4; Angelopoulos, V.1; Bortnik, J.2; Thorne, R. M.2; Kurth, W. S.5; Kletzing, C. A.5; Hospodarsky, G. B.5 | |
2019-07-16 | |
发表期刊 | GEOPHYSICAL RESEARCH LETTERS
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ISSN | 0094-8276 |
EISSN | 1944-8007 |
出版年 | 2019 |
卷号 | 46期号:13页码:7182-7190 |
文章类型 | Article |
语种 | 英语 |
国家 | USA; France; Russia |
英文摘要 | A comprehensive statistical analysis on 8 years of lower-band chorus wave packets measured by the Van Allen Probes and THEMIS spacecraft is performed to examine whether, when, and where these waves are above the theoretical threshold for nonlinear resonant wave-particle interaction. We find that similar to 5-30% of all chorus waves interact nonlinearly with similar to 30-to 300-keV electrons possessing equatorial pitch angles of > 40 degrees in the outer radiation belt, especially during disturbed (AE > 500 nT) periods with energetic particles associated with injections from the plasma sheet. Such considerable occurrence rates of nonlinear interactions imply that the evolution of energetic electron fluxes should be dominated by nonlinear effects, rather than by quasi-linear diffusion as commonly assumed. We discuss the possible consequences of such a large amount of high-amplitude chorus waves and examine their characteristics that can influence the efficiency of nonlinear wave-particle interactions. |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000476960100014 |
WOS关键词 | WHISTLER-MODE WAVES ; VAN ALLEN PROBES ; VLF WAVES ; LOCAL ACCELERATION ; MAGNETIC-FIELD ; MAGNETOSPHERE ; GENERATION ; EMISSIONS ; DYNAMICS ; ENERGY |
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/185033 |
专题 | 气候变化 |
作者单位 | 1.Univ Calif Los Angeles, Dept Earth Planetary & Space Sci, Los Angeles, CA 90095 USA; 2.Univ Calif Los Angeles, Dept Atmospher & Ocean Sci, Los Angeles, CA 90095 USA; 3.CEA, DAM, DIF, Arpajon, France; 4.Russian Acad Sci, Space Res Inst, Moscow, Russia; 5.Univ Iowa, Dept Phys & Astron, Iowa City, IA USA |
推荐引用方式 GB/T 7714 | Zhang, X. -J.,Mourenas, D.,Artemyev, A. V.,et al. Nonlinear Electron Interaction With Intense Chorus Waves: Statistics of Occurrence Rates[J]. GEOPHYSICAL RESEARCH LETTERS,2019,46(13):7182-7190. |
APA | Zhang, X. -J..,Mourenas, D..,Artemyev, A. V..,Angelopoulos, V..,Bortnik, J..,...&Hospodarsky, G. B..(2019).Nonlinear Electron Interaction With Intense Chorus Waves: Statistics of Occurrence Rates.GEOPHYSICAL RESEARCH LETTERS,46(13),7182-7190. |
MLA | Zhang, X. -J.,et al."Nonlinear Electron Interaction With Intense Chorus Waves: Statistics of Occurrence Rates".GEOPHYSICAL RESEARCH LETTERS 46.13(2019):7182-7190. |
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