
%0 Journal Article
%A Cole, DG 
%A McNamara, LF 
%T Variations of Spread-F Occurrence Rates at Near-equatorial Stations in the Australasian Zone
%J Australian Journal of Physics
%D 1974/04/01
%V 27
%N 2
%P 249-258
%K 
%R https://doi.org/10.1071/PH740249
%U https://www.publish.csiro.au/paper/PH740249 
%X The occurrence rates of spreadF for selected years between 1964 and 1972 are presented for three Australian stations lying between 10° and 25° magnetic latitude. Spreading is mainly of the rangespreading type. Two types of spread F are observed: one occurs during the solstices and correlates negatively with sunspot number; the other occurs during the equinoxes and correlates positively with sunspot number and negatively with magnetic activity. The relative importance of the two types is found to vary with latitude. 
