DOI: 10.1002/2014GL059222
论文题名: Simulated magnetopause losses and Van Allen Probe flux dropouts
作者: Hudson M.K. ; Baker D.N. ; Goldstein J. ; Kress B.T. ; Paral J. ; Toffoletto F.R. ; Wiltberger M.
刊名: Geophysical Research Letters
ISSN: 0094-10368
EISSN: 1944-10099
出版年: 2014
卷: 41, 期: 4 起始页码: 1113
结束页码: 1118
语种: 英语
英文关键词: Radiation Belts
Scopus关键词: Electrons
; Magnetopause
; Probes
; Radiation belts
; Wave power
; Electron response
; Flux enhancement
; Interplanetary magnetic fields
; Radial transport
; Relativistic electron
; Rice convection models
; Ring formation
; Solar wind parameters
; Computer simulation
; compression
; electron
; energy efficiency
; magnetopause
; numerical model
; solar wind
英文摘要: Three radiation belt flux dropout events seen by the Relativistic Electron Proton Telescope soon after launch of the Van Allen Probes in 2012 (Baker et al., 2013a) have been simulated using the Lyon-Fedder-Mobarry MHD code coupled to the Rice Convection Model, driven by measured upstream solar wind parameters. MHD results show inward motion of the magnetopause for each event, along with enhanced ULF wave power affecting radial transport. Test particle simulations of electron response on 8 October, prior to the strong flux enhancement on 9 October, provide evidence for loss due to magnetopause shadowing, both in energy and pitch angle dependence. Severe plasmapause erosion occurred during ~ 14 h of strongly southward interplanetary magnetic field Bz beginning 8 October coincident with the inner boundary of outer zone depletion. Key Points Simulations of electron flux 8 Oct 2012 produce dropout into L~5.8 Magnetopause compression bounding the September storage ring formation modeled Model shows effects of magnetopause inward motion and ULF waves on electrons ©2014. American Geophysical Union. All Rights Reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84894279953&doi=10.1002%2f2014GL059222&partnerID=40&md5=fae19ce35347ea1e964dcfde0031967b
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/7632
Appears in Collections: 气候减缓与适应
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作者单位: Physics and Astronomy Department, Dartmouth College, Hanover NH, United States
Recommended Citation:
Hudson M.K.,Baker D.N.,Goldstein J.,et al. Simulated magnetopause losses and Van Allen Probe flux dropouts[J]. Geophysical Research Letters,2014-01-01,41(4).