DOI: 10.1002/2015GL065245
论文题名: Observations of coincident EMIC wave activity and duskside energetic electron precipitation on 18-19 January 2013
作者: Blum L.W. ; Halford A. ; Millan R. ; Bonnell J.W. ; Goldstein J. ; Usanova M. ; Engebretson M. ; Ohnsted M. ; Reeves G. ; Singer H. ; Clilverd M. ; Li X.
刊名: Geophysical Research Letters
ISSN: 0094-9555
EISSN: 1944-9286
出版年: 2015
卷: 42, 期: 14 起始页码: 5727
结束页码: 5735
语种: 英语
英文关键词: electron precipitation
; EMIC waves
; radiation belts
Scopus关键词: Balloons
; Electron scattering
; Electrons
; Magnetosphere
; Electron precipitation
; Energetic electron precipitation
; Geosynchronous orbits
; Magnetospheric convection
; Particle injection
; Radiation belt electrons
; Relativistic electron
; Substorm activity
; Radiation belts
; balloon observation
; electron
; magnetosphere
; precipitation (climatology)
; radiation budget
; wave action
英文摘要: Electromagnetic ion cyclotron (EMIC) waves have been suggested to be a cause of radiation belt electron loss to the atmosphere. Here simultaneous, magnetically conjugate measurements are presented of EMIC wave activity, measured at geosynchronous orbit and on the ground, and energetic electron precipitation, seen by the Balloon Array for Radiation belt Relativistic Electron Losses (BARREL) campaign, on two consecutive days in January 2013. Multiple bursts of precipitation were observed on the duskside of the magnetosphere at the end of 18 January and again late on 19 January, concurrent with particle injections, substorm activity, and enhanced magnetospheric convection. The structure, timing, and spatial extent of the waves are compared to those of the precipitation during both days to determine when and where EMIC waves cause radiation belt electron precipitation. The conjugate measurements presented here provide observational support of the theoretical picture of duskside interaction of EMIC waves and MeV electrons leading to radiation belt loss. © 2015. American Geophysical Union. All Rights Reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84938983445&doi=10.1002%2f2015GL065245&partnerID=40&md5=7c42e89cf2fd54d659a96206b29bd28c
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/9170
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: Space Sciences Laboratory, University of California, Berkeley, CA, United States
Recommended Citation:
Blum L.W.,Halford A.,Millan R.,et al. Observations of coincident EMIC wave activity and duskside energetic electron precipitation on 18-19 January 2013[J]. Geophysical Research Letters,2015-01-01,42(14).