Abstract
Relations between the position and intensity of aurora and the corresponding auroral electrojets in central Canada have been examined for eight moderate polar magnetic storms during 1957–1958 using the I.G.Y. network of all-sky cameras, auroral intensity recorders and magnetic variation stations. The estimated auroral brightness and auroral electrojets intensity were plotted on maps and transferred to give a time-sequence of a meridian section. The intensity, direction, geographic distribution, and motion relations of the aurora and the auroral electrojet were observed to be generally coincident. Oppositely directed electrojets were found to exist close to each other in the ionosphere near local midnight indicating that an appreciable part of the electric field could be magnetospheric in origin.
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