Showing papers on "TEC published in 1973"

TL;DR: In this article, a 2:1 ratio is observed in the frequency shifts of the 10 Mhz and 5 Mhz WWVH signals associated with the large magnetic storm of 25 May 1967, which indicates that the cause of the shift is vertical movement of the layer rather than changes in the ionization profile below the reflection height.

TL;DR: The columnar total electron content of the ionosphere has been monitored continuously from Macquarie Island in the southern auroral zone during 1970 using the Faraday rotation technique.