DOI: 10.1002/2016GL068260
论文题名: Relativistic electron microbursts and variations in trapped MeV electron fluxes during the 8-9 October 2012 storm: SAMPEX and Van Allen Probes observations
作者: Kurita S. ; Miyoshi Y. ; Blake J.B. ; Reeves G.D. ; Kletzing C.A.
刊名: Geophysical Research Letters
ISSN: 0094-9135
EISSN: 1944-8866
出版年: 2016
卷: 43, 期: 7 起始页码: 3017
结束页码: 3025
语种: 英语
英文关键词: radiation belts
; relativistic electron microbursts
; relativistic electrons
; SAMPEX
; Van Allen Probes
; whistler mode chorus
Scopus关键词: Atmospherics
; Electromagnetic waves
; Particle interactions
; Probes
; Radiation belts
; Storms
; Wave plasma interactions
; Flux variation
; Loss mechanisms
; MeV-Electrons
; Radiation belt electrons
; Relativistic electron
; Resonant waves
; SAMPEX
; Whistler-mode chorus
; Electrons
英文摘要: It has been suggested that whistler mode chorus is responsible for both acceleration of MeV electrons and relativistic electron microbursts through resonant wave-particle interactions. Relativistic electron microbursts have been considered as an important loss mechanism of radiation belt electrons. Here we report on the observations of relativistic electron microbursts and flux variations of trapped MeV electrons during the 8-9 October 2012 storm, using the SAMPEX and Van Allen Probes satellites. Observations by the satellites show that relativistic electron microbursts correlate well with the rapid enhancement of trapped MeV electron fluxes by chorus wave-particle interactions, indicating that acceleration by chorus is much more efficient than losses by microbursts during the storm. It is also revealed that the strong chorus wave activity without relativistic electron microbursts does not lead to significant flux variations of relativistic electrons. Thus, effective acceleration of relativistic electrons is caused by chorus that can cause relativistic electron microbursts. © 2016. American Geophysical Union. All Rights Reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84979468268&doi=10.1002%2f2016GL068260&partnerID=40&md5=ecf629872887652c7e0df88ac055a1a4
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/10098
Appears in Collections: 科学计划与规划 气候变化与战略
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作者单位: Institute for Space-Earth Environmental Research, Nagoya University, Nagoya, Japan
Recommended Citation:
Kurita S.,Miyoshi Y.,Blake J.B.,et al. Relativistic electron microbursts and variations in trapped MeV electron fluxes during the 8-9 October 2012 storm: SAMPEX and Van Allen Probes observations[J]. Geophysical Research Letters,2016-01-01,43(7).