Движение на восток радиоавроры и петель свечения в утреннем секторе : [науч. докл. ПГИ-79-1] / Акад. наук СССР, Кол. фил. им. С. М. Кирова, Поляр. геофиз. ин-т ; М. В. Успенский, А. В. Кустов, Е. В. Пудовкина и др. – Препр. ПГИ-79-1. - Апатиты : [б. и.], 1979. - 39 с. : ил.
network of all-eky cameras and four radars in three frequency bands (140, 93, 46 MHz), The width of the longitudinal sector is approximately two hoars of local time. The observations were carried in the framework of International Magnetosphe— ric Study (IMS) and "Auroral Breakup Campaign 78" (ABC—78) during February and March, 1978. In the paper it is proved that the appearance and the brightening of erne of the auro ral loops was connected with the onset of a local morning microsubstorm. The microsubstorm beginning Immediately in the observation sector was accompanied with the prebreakup fading that was discussed by Heikkila and Pellinen, 1978. Here the data about filling of the loops by radioaurora for a high space resolution of radar are given. For two events it was demonstrated that the whole radioaurora is located Inside of the loop filling uniformly or non-unlformly of its. Internal part. Radioaurora Is not overlapped with the leading auroral surge boundary and the wake northern and southern arcs. The radar eastward "loop” Is moving to the east in agreement with the auroral loop. The location of such moving radioaurora does not depended on the frequency band of our radar observations. The movement of the auroral loops and their’radar images accompanied by the eastward motion of a region of the electric field "discontlnuty". The line of the discontinuity is directed approximately along the meridian and is moving in concord with the loops and radioaurora. It Is suggested that the electric field discontinuity has a magnetospheric origin and its ionospheric effects are results of observed auroral loops and accompanied phenomena. Experimental description. In this paper we present the data obtained by a number of Scandinavian and Soviet stations in the Intervals of 67—72°N latitude and 15—4-1 longitude. The location of the installations Is shown in Flg.11. Aurora was registred by all-eky cameras at Laparskaya(l), Apatity (A), the USSR, and Kilplsjarvi(K), Muonia(M), Finland. The 4 Qj circles give the field of view of cameras for 75 zenith angle. The letter T shows Tromso observatory. The STARE radars (Greenwald et al.,1977) measured the field of the irregularity drift velocities in the rectangu— 18
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