globalchange  > 气候减缓与适应
DOI: 10.1002/2014GL059389
论文题名:
Resonant scattering of energetic electrons by unusual low-frequency hiss
作者: Ni B.; Li W.; Thorne R.M.; Bortnik J.; Ma Q.; Chen L.; Kletzing C.A.; Kurth W.S.; Hospodarsky G.B.; Reeves G.D.; Spence H.E.; Bernard Blake J.; Fennell J.F.; Claudepierre S.G.
刊名: Geophysical Research Letters
ISSN: 0094-10272
EISSN: 1944-10003
出版年: 2014
卷: 41, 期:6
起始页码: 1854
结束页码: 1861
语种: 英语
英文关键词: electron decay and loss ; resonant scattering ; resonant wave-particle interactions ; unusual low-frequency hiss
Scopus关键词: Electron scattering ; Radiation belts ; Wave power ; Electron decay ; Electron lifetime ; Energetic electron ; Global modeling ; Low-frequency ; Radiation belt electrons ; Resonant scattering ; Wave-particle interactions ; Electrons ; electromagnetic field ; electron ; magnetosphere ; radiation budget ; resonance ; scattering
英文摘要: We quantify the resonant scattering effects of the unusual low-frequency dawnside plasmaspheric hiss observed on 30 September 2012 by the Van Allen Probes. In contrast to normal (∼100-2000 Hz) hiss emissions, this unusual hiss event contained most of its wave power at ∼20-200 Hz. Compared to the scattering by normal hiss, the unusual hiss scattering speeds up the loss of ∼50-200 keV electrons and produces more pronounced pancake distributions of ∼50-100 keV electrons. It is demonstrated that such unusual low-frequency hiss, even with a duration of a couple of hours, plays a particularly important role in the decay and loss process of energetic electrons, resulting in shorter electron lifetimes for ∼50-400 keV electrons than normal hiss, and should be carefully incorporated into global modeling of radiation belt electron dynamics during periods of intense injections. © 2014. American Geophysical Union. All Rights Reserved.
URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84896689483&doi=10.1002%2f2014GL059389&partnerID=40&md5=156964ab0f399214c81c365ff47c5672
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/7536
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作者单位: Department of Atmospheric and Oceanic Sciences, UCLA, Los Angeles, CA, United States

Recommended Citation:
Ni B.,Li W.,Thorne R.M.,et al. Resonant scattering of energetic electrons by unusual low-frequency hiss[J]. Geophysical Research Letters,2014-01-01,41(6).
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