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DOI | 10.1029/2019GL082681 |
On How High-Latitude Chorus Waves Tip the Balance Between Acceleration and Loss of Relativistic Electrons | |
Wang, Dedong1; Shprits, Yuri Y.1,2,3 | |
2019-07-28 | |
发表期刊 | GEOPHYSICAL RESEARCH LETTERS |
ISSN | 0094-8276 |
EISSN | 1944-8007 |
出版年 | 2019 |
卷号 | 46期号:14页码:7945-7954 |
文章类型 | Article |
语种 | 英语 |
国家 | Germany; USA |
英文摘要 | Modeling and observations have shown that energy diffusion by chorus waves is an important source of acceleration of electrons to relativistic energies. By performing long-term simulations using the three-dimensional Versatile Electron Radiation Belt code, in this study, we test how the latitudinal dependence of chorus waves can affect the dynamics of the radiation belt electrons. Results show that the variability of chorus waves at high latitudes is critical for modeling of megaelectron volt (MeV) electrons. We show that, depending on the latitudinal distribution of chorus waves under different geomagnetic conditions, they cannot only produce a net acceleration but also a net loss of MeV electrons. Decrease in high-latitude chorus waves can tip the balance between acceleration and loss toward acceleration, or alternatively, the increase in high-latitude waves can result in a net loss of MeV electrons. Variations in high-latitude chorus may account for some of the variability of MeV electrons. |
英文关键词 | radiation belts chorus waves high latitude acceleration loss modeling |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000481818900010 |
WOS关键词 | VAN ALLEN PROBES ; OUTER RADIATION BELT ; ULTRARELATIVISTIC ELECTRONS ; LOCAL ACCELERATION ; EMIC WAVES ; DIFFUSION ; MODEL ; SIMULATIONS ; SCATTERING ; DYNAMICS |
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/185273 |
专题 | 气候变化 |
作者单位 | 1.GFZ German Res Ctr Geosci, Sect Magnetospher Phys 2 8, Potsdam, Germany; 2.Univ Potsdam, Inst Phys & Astron, Potsdam, Germany; 3.Univ Calif Los Angeles, Dept Earth Planetary & Space Sci, Los Angeles, CA USA |
推荐引用方式 GB/T 7714 | Wang, Dedong,Shprits, Yuri Y.. On How High-Latitude Chorus Waves Tip the Balance Between Acceleration and Loss of Relativistic Electrons[J]. GEOPHYSICAL RESEARCH LETTERS,2019,46(14):7945-7954. |
APA | Wang, Dedong,&Shprits, Yuri Y..(2019).On How High-Latitude Chorus Waves Tip the Balance Between Acceleration and Loss of Relativistic Electrons.GEOPHYSICAL RESEARCH LETTERS,46(14),7945-7954. |
MLA | Wang, Dedong,et al."On How High-Latitude Chorus Waves Tip the Balance Between Acceleration and Loss of Relativistic Electrons".GEOPHYSICAL RESEARCH LETTERS 46.14(2019):7945-7954. |
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