气候变化领域集成服务门户(CCPortal): Modeling of Bouncing Electron Microbursts Induced by Ducted Chorus Waves

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DOI	10.1029/2020GL089400
	Modeling of Bouncing Electron Microbursts Induced by Ducted Chorus Waves
	Chen L.; Breneman A.W.; Xia Z.; Zhang X.-J.
发表日期	2020
ISSN	0094-8276
卷号	47 期号:17
英文摘要	Short-lived (<1 s) but intense electron precipitation, known as “microbursts,” may contribute significantly to electron losses in the outer radiation belt. Their origin has been suggested to correlate with resonant scattering by whistler-mode chorus waves, but existing models cannot fully explain the properties of microbursts, in particular, the bouncing electron packets in the form of a microburst that have been recently observed. A numerical model is presented that reproduces a series of electron bounce packets in response to individual chorus elements. Results indicate that the actual precipitation only occurs in the leading electron packet whereas subsequent packets form because of the following bounce motions of remaining fluxes. An analysis based on wave propagation and resonance condition yields an approximate time-energy regime of electron microbursts. Such a model is valuable for interpreting and modeling low Earth-orbiting satellite observations of electron flux variation in response to the interaction with magnetospheric chorus waves. ©2020. American Geophysical Union. All Rights Reserved.
英文关键词	Electromagnetic waves; Electrons; Orbits; Radiation belts; Wave propagation; Electron loss; Electron microbursts; Electron precipitation; Low earth orbiting satellites; Outer radiation belt; Resonance condition; Resonant scattering; Whistler-mode chorus; Atmospherics; correlation; electron; flux measurement; numerical model; radiation budget; satellite altimetry; wave propagation
语种	英语
来源期刊	Geophysical Research Letters
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/169799
作者单位	Department of Physics, University of Texas at Dallas, Richardson, TX, United States; School of Physics and Astronomy, University of Minnesota, Twin Cities, Minneapolis, MN, United States; Institute of Geophysics and Planetary Physics, University of California, Los Angeles, CA, United States
推荐引用方式 GB/T 7714	Chen L.,Breneman A.W.,Xia Z.,et al. Modeling of Bouncing Electron Microbursts Induced by Ducted Chorus Waves[J],2020,47(17).
APA	Chen L.,Breneman A.W.,Xia Z.,&Zhang X.-J..(2020).Modeling of Bouncing Electron Microbursts Induced by Ducted Chorus Waves.Geophysical Research Letters,47(17).
MLA	Chen L.,et al."Modeling of Bouncing Electron Microbursts Induced by Ducted Chorus Waves".Geophysical Research Letters 47.17(2020).