Solar Cycle variations of ƒ<i>o</i>F2 from IGY to 1990

Noontime monthly median values of F2-layer critical frequency <i>f</i>oF2 (m) for some ionospheric stations representing low- and mid-latitudes are examined for their dependence on solar activity for the years 1957 (IGY) to 1990. This is the period for which ionospheric data in d...

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Bibliographic Details
Main Authors: N. K. Sethi, M. K. Goel, K. K. Mahajan
Format: Article
Language:English
Published: Copernicus Publications 2002-10-01
Series:Annales Geophysicae
Online Access:https://www.ann-geophys.net/20/1677/2002/angeo-20-1677-2002.pdf