DOI: 10.1002/2015GL064564
论文题名: Relativistic electron precipitations in association with diffuse aurora: Conjugate observation of SAMPEX and the all-sky TV camera at Syowa Station
作者: Kurita S. ; Kadokura A. ; Miyoshi Y. ; Morioka A. ; Sato Y. ; Misawa H.
刊名: Geophysical Research Letters
ISSN: 0094-8693
EISSN: 1944-8424
出版年: 2015
卷: 42, 期: 12 起始页码: 4702
结束页码: 4708
语种: 英语
英文关键词: diffuse aurora
; radiation belts
; SAMPEX
; Syowa Station
; whistler mode wave
Scopus关键词: Atmospherics
; Cameras
; Magnetoplasma
; Magnetosphere
; Radiation belts
; Diffuse aurora
; Energy ranges
; Pitch-angle scattering
; Relativistic electron precipitation
; SAMPEX
; Syowa Station
; TV camera
; Whistler-mode waves
; Electrons
; aurora
; diffusion
; electron
; new record
; precipitation (chemistry)
; radiation budget
; radio wave
; spacecraft
; television
; videography
; Antarctica
; East Antarctica
; Syowa Station
英文摘要: It has been believed that whistler mode waves can cause relativistic electron precipitations. It has been also pointed out that pitch angle scattering of ∼keV electrons by whistler mode waves results in diffuse auroras. Thus, it is natural to expect relativistic electron precipitations associated with diffuse auroras. Based on a conjugate observation between the SAMPEX spacecraft and the all-sky TV camera at Syowa Station, we report, for the first time, a case in which relativistic electron precipitations are associated with diffuse aurora. The SAMPEX observation shows that the precipitations of > 1 MeV electrons are well accompanied with those of > 150 and > 400 keV electrons. This indicates that electrons in the energy range from several keV to > 1 MeV precipitate into the atmosphere simultaneously. Our result supports the idea that whistler mode waves contribute to both generation of diffuse auroras and relativistic electron precipitations. © 2015. American Geophysical Union. All Rights Reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84948711859&doi=10.1002%2f2015GL064564&partnerID=40&md5=1aee27812d26f9b1a402427291f97e5e
Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/8309
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: Solar-Terrestrial Environment Laboratory, Nagoya University, Nagoya, Japan
Recommended Citation:
Kurita S.,Kadokura A.,Miyoshi Y.,et al. Relativistic electron precipitations in association with diffuse aurora: Conjugate observation of SAMPEX and the all-sky TV camera at Syowa Station[J]. Geophysical Research Letters,2015-01-01,42(12).