DOI: 10.1029/2018JA025637
Scopus记录号: 2-s2.0-85050810024
论文题名: Observed Propagation Route of VLF Transmitter Signals in the Magnetosphere
作者: Zhang Z. ; Chen L. ; Li X. ; Xia Z. ; Heelis R.A. ; Horne R.B.
刊名: Journal of Geophysical Research: Space Physics
ISSN: 21699380
出版年: 2018
卷: 123, 期: 7 起始页码: 5528
结束页码: 5537
语种: 英语
英文关键词: ducted propagation
; in magnetosphere
; nonducted propagation
; VLF transmitter
英文摘要: Signals of powerful ground transmitters at various places have been detected by satellites in near-Earth space. The study on propagation mode, ducted or nonducted, has attracted much attentions for several decades. Based on the statistical results from Van Allen Probes (data from October 2012 to March 2017) and DEMETER satellite (from January 2006 to December 2007), we present the ground transmitter signals distributed clearly in ionosphere and magnetosphere. The observed propagation route in the meridian plane in the magnetosphere for each of various transmitters from the combination of DEMETER and Van Allen Probes data in nighttime is revealed for the first time. We use realistic ray tracing simulation and compare simulation results against Van Allen Probes and DEMETER observation. By comparison we demonstrate that the observed propagation route, with partial deviation from the field lines corresponding to ground stations, provides direct and clear statistical evidence that the nonducted propagation mode plays a main role, although with partial contribution from ducted propagation. The propagation characteristics of VLF transmitter signals in the magnetosphere are critical for quantitatively assessing their contribution to energetic electron loss in radiation belts. ©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/113600
Appears in Collections: 气候减缓与适应
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作者单位: Development Research Center of China Earthquake Administration, Beijing, China; Department of Physics, University of Texas at Dallas, Richardson, TX, United States; Institute of High Energy Physics, Chinese Academy of Sciences, Beijing, China; British Antarctic Survey, Cambridge, United Kingdom
Recommended Citation:
Zhang Z.,Chen L.,Li X.,et al. Observed Propagation Route of VLF Transmitter Signals in the Magnetosphere[J]. Journal of Geophysical Research: Space Physics,2018-01-01,123(7)