Atmospheric tides in the ionosphere. III. Lunar tidal variations at Canberra
- 9 November 1948
- journal article
- Published by The Royal Society in Proceedings of the Royal Society of London. Series A. Mathematical and Physical Sciences
- Vol. 194 (1039) , 429-444
- https://doi.org/10.1098/rspa.1948.0090
Abstract
A study has been made of the lunar variations in heights and critical frequencies of the E, F 1 and F 2 regions above Canberra, Australia. Semi-diurnal lunar variations have been found in all these quantities, and the harmonic coefficients determined. From the study of these it is concluded: ( a ) that ionospheric lunar variations are caused by ionic drift under the action of the ‘dynamo’ electric forces, and not by simple tidal rise and fall of isobaric surfaces; ( b ) that the lunar magnetic variations are not produced in the E, F 1 or F 2 regions.This publication has 0 references indexed in Scilit: