DOI: 10.1002/2013GL059175
论文题名: Quiet time observations of He ions in the inner magnetosphere as observed from the RBSPICE instrument aboard the Van Allen Probes mission
作者: Gerrard A. ; Lanzerotti L. ; Gkioulidou M. ; Mitchell D. ; Manweiler J. ; Bortnik J.
刊名: Geophysical Research Letters
ISSN: 0094-10366
EISSN: 1944-10097
出版年: 2014
卷: 41, 期: 4 起始页码: 1100
结束页码: 1105
语种: 英语
英文关键词: He-ions
; inner magnetosphere
; radiation belts
; ring current
; Van Allen Probes
Scopus关键词: Charge transfer
; Geomagnetism
; Ions
; Population statistics
; Probes
; Radiation belts
; Storms
; Charge exchange process
; Geomagnetic storm
; He-ions
; Inner magnetosphere
; Ion composition
; Population densities
; Ring currents
; Temporal evolution
; Trapped ions
; belt
; energy efficiency
; geomagnetic storm
; geomorphology
; helium
; instrumentation
; magnetosphere
; measurement method
; observational method
; temporal analysis
英文摘要: He ions contribute to Earth's ring current energy and species population density and are important in understanding ion transport and charge exchange processes in the inner magnetosphere. He ion flux measurements made by the Van Allen Probes Radiation Belt Storm Probes Ion Composition Experiment (RBSPICE) instrument are presented in this paper. Particular focus is centered on geomagnetically quiet intervals in late 2012 and 2013 that show the flux, L-shell, and energy (65 keV to 518 keV) morphology of ring current He ions between geomagnetic storm injection events. The overall He ion abundance during the first nine months of RBSPICE observations, the appearance of a persistent high energy, low L-shell He ion population, and the temporal evolution of this population all provide new insights into trapped ring current energy He ions. These data provide a unique resource that will be used to provide verifications of, and improvements to, models of He ion transport and loss in Earth's ring current region. Key Points An overview of the He-ion abundance during the first 9 months of observations The appearance of a high energy, low L-shell He ion population How the injected He ions respond on daily timescales ©2014. The Authors. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84894265070&doi=10.1002%2f2013GL059175&partnerID=40&md5=272d531c7c1c439b5f7b594e6fbf0917
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/7630
Appears in Collections: 气候减缓与适应
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作者单位: Center for Solar-Terrestrial Research, New Jersey Institute of Technology, Newark NJ, United States
Recommended Citation:
Gerrard A.,Lanzerotti L.,Gkioulidou M.,et al. Quiet time observations of He ions in the inner magnetosphere as observed from the RBSPICE instrument aboard the Van Allen Probes mission[J]. Geophysical Research Letters,2014-01-01,41(4).