Ionospheric spread-F at Huancayo, sunspot activity and geomagnetic activity

Bowman G.G. (1975) Ionospheric spread-F at Huancayo, sunspot activity and geomagnetic activity. Planetary and Space Science, 23 5: 899-903. doi:10.1016/0032-0633(75)90028-8


Author Bowman G.G.
Title Ionospheric spread-F at Huancayo, sunspot activity and geomagnetic activity
Journal name Planetary and Space Science   Check publisher's open access policy
ISSN 0032-0633
Publication date 1975-01-01
Sub-type Article (original research)
DOI 10.1016/0032-0633(75)90028-8
Volume 23
Issue 5
Start page 899
End page 903
Total pages 5
Subject 1908 Geophysics
1912 Space and Planetary Science
3103 Astronomy and Astrophysics
Abstract A superposed-epoch method is used to investigate the occurrence of spread-F at Huancayo relative to days of high sunspot activity and also relative to days of high geomagnetic activity. A good correlation is found between days of high Ap, index and high spread-F occurrence for a pre-sunrise interval of a few hours. When 3-hourly Kp indices are used they show a peak value approximately 6 hr prior to an above-average occurrence of spread-F. It is suggested that this pre-sunrise spread-F is associated with ionospheric height rises which are produced by travelling disturbances, initiated in polar regions at times of high geomagnetic activity.
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status Unknown

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