DOI: 10.1002/2016GL069875
论文题名: Van Allen Probe measurements of the electric drift E × B/B2 at Arecibo’s L = 1.4 field line coordinate
作者: Lejosne S. ; Mozer F.S.
刊名: Geophysical Research Letters
ISSN: 0094-8904
EISSN: 1944-8635
出版年: 2016
卷: 43, 期: 13 起始页码: 6768
结束页码: 6774
语种: 英语
英文关键词: corotation
; electric field
; inner radiation belt
; ionosphere
; plasmasphere
Scopus关键词: Electric fields
; Electric variables measurement
; Interactive devices
; Ionosphere
; Ionospheric measurement
; Magnetism
; Magnetosphere
; Probes
; Radar
; Radiation belts
; Co-rotation
; Incoherent scatter radar
; Inner radiation belts
; Magnetic field line
; Magnetic local time
; Plasmasphere
; Probe measurements
; Structure and dynamics
; Electric lines
; angular momentum
; coordinate
; Earth
; Earth rotation
; electric field
; ionosphere
; magnetic field
; measurement method
; particle motion
; probe
英文摘要: We have used electric and magnetic measurements by Van Allen Probe B from 2013 to 2014 to examine the equatorial electric drift E × B/B2 at one field line coordinate set to Arecibo’s incoherent scatter radar location (L = 1.43). We report on departures from the traditional picture of corotational motion with the Earth in two ways: (1) the rotational angular speed is found to be 10% smaller than the rotational angular speed of the Earth, in agreement with previous works on plasmaspheric notches, and (2) the equatorial electric drift displays a dependence in magnetic local time, with a pattern consistent with the mapping of the Arecibo ionosphere dynamo electric fields along equipotential magnetic field lines. The electric fields due to the ionosphere dynamo are therefore expected to play a significant role when discussing, for instance, the structure and dynamics of the plasmasphere or the transport of trapped particles in the inner belt. ©2016. American Geophysical Union. All Rights Reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84978492425&doi=10.1002%2f2016GL069875&partnerID=40&md5=6100823533ece40ada13e5bf8434a1d3
Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/9867
Appears in Collections: 科学计划与规划 气候变化与战略
There are no files associated with this item.
作者单位: Space Sciences Laboratory, University of California, Berkeley, CA, United States
Recommended Citation:
Lejosne S.,Mozer F.S.. Van Allen Probe measurements of the electric drift E × B/B2 at Arecibo’s L = 1.4 field line coordinate[J]. Geophysical Research Letters,2016-01-01,43(13).