Mid-latitude range spread and travelling ionospheric disturbances

Bowman G.G. and Monro P.E. (1988) Mid-latitude range spread and travelling ionospheric disturbances. Journal of Atmospheric and Terrestrial Physics, 50 3: 215-223. doi:10.1016/0021-9169(88)90070-0

Author Bowman G.G.
Monro P.E.
Title Mid-latitude range spread and travelling ionospheric disturbances
Journal name Journal of Atmospheric and Terrestrial Physics
ISSN 0021-9169
Publication date 1988
Sub-type Article (original research)
DOI 10.1016/0021-9169(88)90070-0
Volume 50
Issue 3
Start page 215
End page 223
Total pages 9
Subject 1902 Film, Television and Digital Media
1908 Geophysics
Abstract This paper first discusses some early results (most hitherto unpublished) on off-vertical reflections which result from tilted isoionic contours associated with the passage of travelling ionospheric disturbances (TIDs). Azimuth of arrival and zenith angle information on these returning signals is discussed together with the role of these signals in producing both resolved and unresolved range spread on ionograms. Some ray tracing through a model ionosphere which incorporates wavelike structures is shown to predict fixed-frequency patterns (on recordings of virtual height vs. time) of converging and diverging satellite traces similar to those observed in practice. New experimental evidence is then presented to suggest (from the N(h) analyses performed) that TID wavetrains of several cycles are effective in producing spread traces on ionograms by specular reflections from the tilted surfaces of each cycle of these wavetrains. Ionograms from a modern ionosonde show that range spread consists primarily of discrete satellite traces even though at times these traces overlap and vary in intensity as a function of frequency thus creating a diffuse range spread ionogram.
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status Unknown

Document type: Journal Article
Sub-type: Article (original research)
Collection: Scopus Import
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Citation counts: Scopus Citation Count Cited 6 times in Scopus Article | Citations
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