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DOI | 10.1029/2018GL078604 |
Understanding the Driver of Energetic Electron Precipitation Using Coordinated Multisatellite Measurements | |
Capannolo, L.1; Li, W.1; Ma, Q.1,2; Zhang, X. -J.2,3; Redmon, R. J.4; Rodriguez, J. V.4; Kletzing, C. A.5; Kurth, W. S.5; Hospodarsky, G. B.5; Engebretson, M. J.6; Spence, H. E.7; Reeves, G. D.8 | |
2018-07-28 | |
发表期刊 | GEOPHYSICAL RESEARCH LETTERS
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ISSN | 0094-8276 |
EISSN | 1944-8007 |
出版年 | 2018 |
卷号 | 45期号:14页码:6755-6765 |
文章类型 | Article |
语种 | 英语 |
国家 | USA |
英文摘要 | Magnetospheric plasma waves play a significant role in ring current and radiation belt dynamics, leading to pitch angle scattering loss and/or stochastic acceleration of the particles. During a non-storm time dropout event on 24 September 2013, intense electromagnetic ion cyclotron (EMIC) waves were detected by Van Allen Probe A (Radiation Belt Storm Probes-A). We quantitatively analyze a conjunction event when Van Allen Probe A was located approximately along the same magnetic field line as MetOp-01, which detected simultaneous precipitation of >30 keV protons and energetic electrons over an unexpectedly broad energy range (>similar to 30keV). Multipoint observations together with quasi-linear theory provide direct evidence that the observed electron precipitation at higher energy (>similar to 700keV) is primarily driven by EMIC waves. However, the newly observed feature of the simultaneous electron precipitation extending down to similar to 30keV is not supported by existing theories and raises an interesting question on whether EMIC waves can scatter such low-energy electrons. |
英文关键词 | radiation belts energetic particle precipitation EMIC waves wave particle interactions pitch angle scattering |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000442582100001 |
WOS关键词 | VAN ALLEN PROBES ; ION-CYCLOTRON WAVES ; PITCH-ANGLE SCATTERING ; MULTIBAND EMIC WAVES ; RELATIVISTIC ELECTRONS ; GEOMAGNETIC STORMS ; RESONANT SCATTERING ; EQUATORIAL MAGNETOSPHERE ; INNER MAGNETOSPHERE ; RADIATION BELTS |
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/27737 |
专题 | 气候变化 |
作者单位 | 1.Boston Univ, Ctr Space Phys, Boston, MA 02215 USA; 2.Univ Calif Los Angeles, Dept Atmospher & Ocean Sci, Los Angeles, CA USA; 3.Univ Calif Los Angeles, Dept Earth Planetary & Space Sci, Los Angeles, CA USA; 4.NOAA, Natl Ctr Environm Informat, Boulder, CO USA; 5.Univ Iowa, Dept Phys & Astron, Iowa City, IA 52242 USA; 6.Univ Augsburg, Dept Phys, Minneapolis, MN USA; 7.Univ New Hampshire, Inst Study Earth Oceans & Space, Durham, NH 03824 USA; 8.Los Alamos Natl Lab, Space Sci & Applicat Grp, Los Alamos, NM USA |
推荐引用方式 GB/T 7714 | Capannolo, L.,Li, W.,Ma, Q.,et al. Understanding the Driver of Energetic Electron Precipitation Using Coordinated Multisatellite Measurements[J]. GEOPHYSICAL RESEARCH LETTERS,2018,45(14):6755-6765. |
APA | Capannolo, L..,Li, W..,Ma, Q..,Zhang, X. -J..,Redmon, R. J..,...&Reeves, G. D..(2018).Understanding the Driver of Energetic Electron Precipitation Using Coordinated Multisatellite Measurements.GEOPHYSICAL RESEARCH LETTERS,45(14),6755-6765. |
MLA | Capannolo, L.,et al."Understanding the Driver of Energetic Electron Precipitation Using Coordinated Multisatellite Measurements".GEOPHYSICAL RESEARCH LETTERS 45.14(2018):6755-6765. |
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