DOI: 10.1002/2014GL062558
论文题名: Intermediate-scale plasma irregularities in the polar ionosphere inferred from GPS radio occultation
作者: Shume E.B. ; Komjathy A. ; Langley R.B. ; Verkhoglyadova O. ; Butala M.D. ; Mannucci A.J.
刊名: Geophysical Research Letters
ISSN: 0094-8976
EISSN: 1944-8707
出版年: 2015
卷: 42, 期: 3 起始页码: 688
结束页码: 696
语种: 英语
英文关键词: plasma irregularities
; polar ionosphere
; radio occultation
; scintillation
; spectral analysis
Scopus关键词: Ionosphere
; Ionospheric measurement
; Magnetosphere
; Phase measurement
; Radio
; Radio links
; Satellite communication systems
; Satellite links
; Satellites
; Scintillation
; Signal receivers
; Spectrum analysis
; Defense Meteorological Satellite Programs
; Environmental satellites
; Gps (global positioning system)
; GPS radio occultations
; Plasma irregularities
; Polar ionospheres
; Radio occultations
; Satellite radio links
; Global positioning system
; atmospheric electricity
; atmospheric forcing
; GPS
; ionosphere
; magnetosphere
; plasma
; satellite data
; solar wind
; spectral analysis
英文摘要: We report intermediate-scale plasma irregularities in the polar ionosphere inferred from high-resolution radio occultation (RO) measurements using GPS (Global Positioning System) to CASSIOPE (CAScade Smallsat and IOnospheric Polar Explorer) satellite radio links. The high inclination of CASSIOPE and the high rate of signal reception by the GPS Attitude, Positioning, and Profiling RO receiver on CASSIOPE enable a high-resolution investigation of the dynamics of the polar ionosphere with unprecedented detail. Intermediate-scale, scintillation-producing irregularities, which correspond to 1 to 40km scales, were inferred by applying multiscale spectral analysis on the RO phase measurements. Using our multiscale spectral analysis approach and satellite data (Polar Operational Environmental Satellites and Defense Meteorological Satellite Program), we discovered that the irregularity scales and phase scintillations have distinct features in the auroral oval and polar cap. We found that large length scales and more intense phase scintillations are prevalent in the auroral oval compared to the polar cap implying that the irregularity scales and phase scintillation characteristics are a function of the solar wind and magnetospheric forcings. © 2015 The Authors. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84925136524&doi=10.1002%2f2014GL062558&partnerID=40&md5=5373e0e1cad91c4e002309955209567e
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/8592
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: Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA, United States
Recommended Citation:
Shume E.B.,Komjathy A.,Langley R.B.,et al. Intermediate-scale plasma irregularities in the polar ionosphere inferred from GPS radio occultation[J]. Geophysical Research Letters,2015-01-01,42(3).