Aspect-sensitive reflections from ionization irregularities in the F-region

Swenson E.M. (1972) Aspect-sensitive reflections from ionization irregularities in the F-region. Journal of Atmospheric and Terrestrial Physics, 34 9: 1469-1476. doi:10.1016/0021-9169(72)90078-5


Author Swenson E.M.
Title Aspect-sensitive reflections from ionization irregularities in the F-region
Journal name Journal of Atmospheric and Terrestrial Physics
ISSN 0021-9169
Publication date 1972
Sub-type Article (original research)
DOI 10.1016/0021-9169(72)90078-5
Volume 34
Issue 9
Start page 1469
End page 1476
Total pages 8
Subject 1902 Film, Television and Digital Media
1908 Geophysics
Abstract Regions of field-aligned ionization irregularities in F-region occurred at night, mainly during geomagnetic disturbance, and were observed by direct backscatter reflections (FAE). It is proposed that the irregularities were created at high latitudes and then drifted equatorwards; FAE also tended to occur most often when f{hook}0F2 was about 4 MHz. This hypothesis accounts for the observed temporal variations of FAE occurrence and an east-west shift of mean azimuth limits during the night. The irregularities possibly decreased in height as f{hook}0F2 or latitude decreased, and decreased in length with falling f{hook}0F2. A strong correlation with spread-F and radio-star scintillations indicates that these types of irregularity might behave similarly. The different FAE shapes observed were apparently caused by different types of echoing region.
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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