globalchange  > 科学计划与规划
DOI: 10.1002/2016GL069591
论文题名:
Ducted electromagnetic waves in the Martian ionosphere detected by the Mars Advanced Radar for Subsurface and Ionosphere Sounding radar
作者: Zhang Z.; Orosei R.; Huang Q.; Zhang J.
刊名: Geophysical Research Letters
ISSN: 0094-8834
EISSN: 1944-8565
出版年: 2016
卷: 43, 期:14
起始页码: 7381
结束页码: 7388
语种: 英语
英文关键词: ducted wave ; ionosphere ; Mars ; MARSIS
Scopus关键词: Acoustic devices ; Circular waveguides ; Cutoff frequency ; Electromagnetic waves ; F region ; Ionospheric measurement ; Plasma density ; Radar ; Waveguides ; Crustal magnetic fields ; European Space Agency ; Ionospheric plasmas ; Mars ; MARSIS ; Martian ionosphere ; Multiple reflections ; Pulse frequencies ; Ionosphere ; electromagnetic wave ; F region ; magnetic field ; Mars ; plasma ; radar altimetry ; radio
英文摘要: In the data of the Mars Advanced Radar for Subsurface and Ionosphere Sounding on board the European Space Agency (ESA) mission Mars Express (MEX), a distinctive type of signals (called the “epsilon signature”), which is similar to that previously detected during radio sounding of the terrestrial F region ionosphere, is found. The signature is interpreted to originate from multiple reflections of electromagnetic waves propagating along sounder pulse-created, crustal magnetic field-aligned plasma bubbles (waveguides). The signatures have a low (below 0.5%) occurrence rate and apparent cutoff frequencies 3–5 times higher than the theoretical one for an ordinary mode wave. These properties are explained by the influence of the perpendicular ionospheric plasma density gradient and the sounder pulse frequency on the formation of waveguides. ©2016. American Geophysical Union. All Rights Reserved.
URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84979735713&doi=10.1002%2f2016GL069591&partnerID=40&md5=c08b8dfa597404405e91b842b97b0f6d
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/9797
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: Institute of Mathematical Geology and Remote Sensing, China University of Geosciences, Wuhan, China

Recommended Citation:
Zhang Z.,Orosei R.,Huang Q.,et al. Ducted electromagnetic waves in the Martian ionosphere detected by the Mars Advanced Radar for Subsurface and Ionosphere Sounding radar[J]. Geophysical Research Letters,2016-01-01,43(14).
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