Australian Journal of Physics Australian Journal of Physics Society
A journal for the publication of original research in all branches of physics

Travelling Ionospheric Disturbances in the F Region

GH Munro

Australian Journal of Physics 11(1) 91 - 112
Published: 1958


Observations of the horizontal movements of travelling ionospheric disturbances recorded on a single radio frequency from April 1948 to March 1957 are analysed for seasonal and diurnal variations of occurrence and of direction and speed of travel. Recording was mainly in daylight hours but some limited night results are included. The average number of disturbances recorded was six per day over the period. Observing accuracy and significance of the deduced data are discussed. The frequency of occurrence has a diurnal variation with a marked midday maximum and a seasonal variation with minima at the equinoxes.

© CSIRO 1958

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