Analysis of rapid motions of an auroral radiant on the basis of TV observations in Tiksi Bay

Details Analysis of rapid motions of an auroral radiant on the basis of TV observations in Tiksi Bay Analysis of rapid motions of an auroral radiant on the basis of TV observations in Tiksi Bay

Apr 1990

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990ge%26ae..30..240n&link_type=abstract

Geomagnetizm i Aeronomiia (ISSN 0016-7940), vol. 30, Mar.-Apr. 1990, p. 240-244. In Russian.

Physics

Auroras, Field Aligned Currents, Ionospheric Currents, Television Systems, Geomagnetism, Radiant Flux Density

Scientific paper

The motion of an auroral radiant was investigated on the basis of TV photography with a time resolution of 0.125 sec. It is shown that the average radiant that was observed in Tiksi Bay was shifted toward the southeast from the magnetic zenith, corresponding to a height of 150 km. The transverse current in the ionosphere pulsated with a characteristic period of about 0.5 sec. In addition, helicoidal oscillations of the lines of force occurred which corresponded to sign-varying pulsations of the field-aligned current in the radiant-band region.

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