气候变化领域集成服务门户(CCPortal): Suprathermal Electron Evolution Under the Competition Between Plasmaspheric Plume Hiss Wave Heating and Collisional Cooling

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DOI	10.1029/2020GL089649
	Suprathermal Electron Evolution Under the Competition Between Plasmaspheric Plume Hiss Wave Heating and Collisional Cooling
	Wang Z.; Su Z.; Liu N.; Dai G.; Zheng H.; Wang Y.; Wang S.
发表日期	2020
ISSN	0094-8276
卷号	47 期号:19
英文摘要	Suprathermal electrons are a major heat source of ionospheric plasma. How the suprathermal electrons evolve during their bounces inside the plasmasphere is a fundamental question for the magnetosphere-ionosphere coupling. On the basis of Van Allen Probes observations and quasi-linear simulations, we present here the first quantitative study on the evolution of suprathermal electrons under the competition between Landau heating by whistler mode hiss waves and Coulomb collisional cooling by background plasma inside a plasmaspheric plume. We show that the Landau heating can prevail over the collisional cooling for >50 eV electrons and cause the field-aligned suprathermal electron fluxes to increase by up to 1 order of magnitude within 1.5 hr. Our results imply that the plasmaspheric plume hiss waves could mediate energy from the ring current electrons to the ionospheric plasma. ©2020. American Geophysical Union. All Rights Reserved.
英文关键词	Collisional plasmas; Cooling; Electrons; Ionosphere; Magnetosphere; Collisional cooling; Heat sources; Ionospheric plasmas; Magnetosphere-ionosphere coupling; Quantitative study; Ring currents; Suprathermal electrons; Wave heating; Atmospherics; cooling; electron; heat source; heating; ionosphere; magnetosphere
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/169639
作者单位	Department of Geophysics and Planetary Sciences, University of Science and Technology of China, Hefei, China; CAS Center for Excellence in Comparative Planetology, University of Science and Technology of China, Hefei, China; Anhui Mengcheng Geophysics National Observation and Research Station, University of Science and Technology of China, Mengcheng, China
推荐引用方式 GB/T 7714	Wang Z.,Su Z.,Liu N.,et al. Suprathermal Electron Evolution Under the Competition Between Plasmaspheric Plume Hiss Wave Heating and Collisional Cooling[J],2020,47(19).
APA	Wang Z..,Su Z..,Liu N..,Dai G..,Zheng H..,...&Wang S..(2020).Suprathermal Electron Evolution Under the Competition Between Plasmaspheric Plume Hiss Wave Heating and Collisional Cooling.Geophysical Research Letters,47(19).
MLA	Wang Z.,et al."Suprathermal Electron Evolution Under the Competition Between Plasmaspheric Plume Hiss Wave Heating and Collisional Cooling".Geophysical Research Letters 47.19(2020).