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DOI | 10.1029/2019GL082152 |
EMIC Waves in the Outer Magnetosphere: Observations of an Off-Equator Source Region | |
Vines, S. K.1; Allen, R. C.1; Anderson, B. J.1; Engebretson, M. J.2; Fuselier, S. A.3,4; Russell, C. T.5,6; Strangeway, R. J.5,6; Ergun, R. E.7; Lindqvist, P. A.8; Torbert, R. B.3,9; Burch, J. L.3 | |
2019-06-16 | |
发表期刊 | GEOPHYSICAL RESEARCH LETTERS |
ISSN | 0094-8276 |
EISSN | 1944-8007 |
出版年 | 2019 |
卷号 | 46期号:11页码:5707-5716 |
文章类型 | Article |
语种 | 英语 |
国家 | USA; Sweden |
英文摘要 | Electromagnetic ion cyclotron (EMIC) waves at large L shells were observed away from the magnetic equator by the Magnetospheric MultiScale (MMS) mission nearly continuously for over four hours on 28 October 2015. During this event, the wave Poynting vector direction systematically changed from parallel to the magnetic field (toward the equator), to bidirectional, to antiparallel (away from the equator). These changes coincide with the shift in the location of the minimum in the magnetic field in the southern hemisphere from poleward to equatorward of MMS. The local plasma conditions measured with the EMIC waves also suggest that the outer magnetospheric region sampled during this event was generally unstable to EMIC wave growth. Together, these observations indicate that the bidirectionally propagating wave packets were not a result of reflection at high latitudes but that MMS passed through an off-equator EMIC wave source region associated with the local minimum in the magnetic field. |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000477616200009 |
WOS关键词 | ION-CYCLOTRON WAVES ; 1-2 MAGNETIC PULSATIONS ; DAWN-DUSK ASYMMETRY ; PROTON PRECIPITATION ; CLUSTER ; PLASMA ; FREQUENCY ; STORMS ; MODEL ; HE+ |
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/184073 |
专题 | 气候变化 |
作者单位 | 1.Johns Hopkins Univ, Appl Phys Lab, Laurel, MD 20723 USA; 2.Augsburg Univ, Dept Phys, Minneapolis, MN USA; 3.Southwest Res Inst, San Antonio, TX USA; 4.Univ Texas San Antonio, Dept Phys & Astron, San Antonio, TX USA; 5.Univ Calif Los Angeles, Dept Earth Planetary & Space Sci, Los Angeles, CA USA; 6.Univ Calif Los Angeles, Inst Geophys & Planetary Phys, Los Angeles, CA 90024 USA; 7.Univ Colorado, Lab Atmospher & Space Phys, Boulder, CO 80309 USA; 8.Royal Inst Technol, Dept Space & Plasma Phys, Stockholm, Sweden; 9.Univ New Hampshire, Space Sci Ctr, Durham, NH 03824 USA |
推荐引用方式 GB/T 7714 | Vines, S. K.,Allen, R. C.,Anderson, B. J.,et al. EMIC Waves in the Outer Magnetosphere: Observations of an Off-Equator Source Region[J]. GEOPHYSICAL RESEARCH LETTERS,2019,46(11):5707-5716. |
APA | Vines, S. K..,Allen, R. C..,Anderson, B. J..,Engebretson, M. J..,Fuselier, S. A..,...&Burch, J. L..(2019).EMIC Waves in the Outer Magnetosphere: Observations of an Off-Equator Source Region.GEOPHYSICAL RESEARCH LETTERS,46(11),5707-5716. |
MLA | Vines, S. K.,et al."EMIC Waves in the Outer Magnetosphere: Observations of an Off-Equator Source Region".GEOPHYSICAL RESEARCH LETTERS 46.11(2019):5707-5716. |
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