Mid-latitude spread-F occurrence during daylight hours

Bowman G.G., Dunne G.S. and Hainsworth D.W. (1987) Mid-latitude spread-F occurrence during daylight hours. Journal of Atmospheric and Terrestrial Physics, 49 2: 165-176. doi:10.1016/0021-9169(87)90051-1


Author Bowman G.G.
Dunne G.S.
Hainsworth D.W.
Title Mid-latitude spread-F occurrence during daylight hours
Journal name Journal of Atmospheric and Terrestrial Physics
ISSN 0021-9169
Publication date 1987-01-01
Sub-type Article (original research)
DOI 10.1016/0021-9169(87)90051-1
Volume 49
Issue 2
Start page 165
End page 176
Total pages 12
Subject 1902 Film, Television and Digital Media
1908 Geophysics
Abstract Statistical analyses using superposed-epoch methods indicate, at a high level of significance, a probable association (at mid-latitudes) between night-time spread-F and day-time TIDs, as judged by (a) diffuse spreading on the second-hop day-time ionogram and (b) a distortion of any kind of the first-hop day-time ionogram. Further evidence for this association is presented by using ionograms from a new (research oriented) ionosonde which can be programmed to record over small frequency ranges and small height ranges, in addition to providing direction-of-arrival, phase-path and amplitude information on the signals recorded. Day-time wave trains of up to 4 cycles are discussed in terms of frequency-spread and range-spread traces which appear on the ionograms at these times. This detail is made possible by the recording of 360 ionograms over a period of approximately 3 h. Other examples of what can be classed as day-time spread-F ionograms are discussed in terms of additional traces recorded both near f{hook}0F2 and f{hook}0F1 positions on ionograms.
Q-Index Code C1
Institutional Status Unknown

Document type: Journal Article
Sub-type: Article (original research)
Collection: Scopus Import - Archived
 
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