DOI: 10.1029/2018JA025648
Scopus记录号: 2-s2.0-85052685570
论文题名: Ionospheric Specification and Space Weather Forecasting With an HF Beacon Network in the Peruvian Sector
作者: Hysell D.L. ; Baumgarten Y. ; Milla M.A. ; Valdez A. ; Kuyeng K.
刊名: Journal of Geophysical Research: Space Physics
ISSN: 21699380
出版年: 2018
卷: 123, 期: 8 起始页码: 6851
结束页码: 6864
语种: 英语
英文关键词: beacon
; equatorial spread F
; ionosphere
; radio
; space weather
英文摘要: A network of high-frequency (HF) transmitters and receivers used for ionospheric specification is being installed in Peru. The HF transmitters employ multiple frequencies and binary phase coding with pseudorandom noise, and the observables provided by the receivers include group delay, Doppler shift, amplitude, bearing (from interferometry), and polarization. Statistical inverse methods are used to estimate F region density in a volume from the data regionally. The method incorporates raytracing based on the principles of Hamiltonian optics in the forward model and involves an ionospheric parametrization in terms of Chapman functions in the vertical and bicubic B-spline interpolation in the horizontal. Regularization is employed to minimize the global curvature of the reconstructions. HF beacon data for two nights in January 2018 are presented. We use the reconstructions to investigate why plasma irregularities associated with equatorial spread F formed on one occasion and not the other. The data indicate that the background ionospheric flow is not simply frozen in, that is, that longitude and local time variations cannot be equated, even at regional scales. This has ramifications for equatorial spread F forecasting strategies that assume equivalence. ©2018. American Geophysical Union. All Rights Reserved. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/113292
Appears in Collections: 气候减缓与适应
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作者单位: Earth and Atmospheric Sciences, Cornell University, Ithaca, NY, United States; Mechanical and Aerospace Engineering, Cornell University, Ithaca, NY, United States; Jicamarca Radio ObservatoryLima, Peru
Recommended Citation:
Hysell D.L.,Baumgarten Y.,Milla M.A.,et al. Ionospheric Specification and Space Weather Forecasting With an HF Beacon Network in the Peruvian Sector[J]. Journal of Geophysical Research: Space Physics,2018-01-01,123(8)