Semiannual and annual variations in the height of the ionospheric F2-peak

Ionosonde data from sixteen stations are used to study the semiannual and annual variations in the height of the ionospheric F2-peak, <i>h</i>mF2. The semiannual variation, which peaks shortly after equinox, has an amplitude of about 8 km at an average level of solar activity (10.7 c...

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Bibliographic Details
Main Authors: H. Rishbeth, K. J. F. Sedgemore-Schulthess, T. Ulich
Format: Article
Language:English
Published: Copernicus Publications 2000-03-01
Series:Annales Geophysicae
Online Access:https://www.ann-geophys.net/18/285/2000/angeo-18-285-2000.pdf