Tables of IGY Monthly Median Ionospheric Data

Annals of the International Geophysical Year, Volume 17: Tables of IGY Monthly Median Ionospheric Data: Part IV is the fourth of six volumes of l.G.Y. data containing tables of monthly median values of ionospheric characteristics for the period July 1957-January 1959 inclusive. The data are extracted from booklets, bulletins and data summaries of many kinds which have been prepared at ionospheric ...