Physics of auroral phenomena : proceedings of the 37th Annual seminar, Apatity, 25 - 28 February, 2014 / [ed. board: A. G. Yahnin, N. V. Semenova]. - Апатиты : Изд-во Кольского научного центра РАН, 2014. - 125 с. : ил., табл.

Substorm observations in Apatity during different solar wind conditions UT: 18:26:40 18:27:20 18:29:00 18:32:00 18:33:40 18:36:30 UT: 18:39:40 18:39:50 18:40:20 18:41:40 18:42:10 18:45:00 Figure 2. Chosen all-sky camera images presenting the substorm beginning and development as seen from Apatity on 17 March 2013, during the main phase of a geomagnetic storm generated by MC. Substorm beginning, polar edge movement to the North, surpassing station zenith, the second intensification in 18:39:40 UT and its motion to North, the bulge expanding in the whole field of view are seen. UT: 18:26:00 18:29:00 18:30:10 18:31:10 18:31:20 18:33:30 Figure 3. Selected images of the substorm onset and development during the main phase o f a geomagnetic storm caused by RS on 29 March 2013. The substorm onset to the South of the station, the bulge formation, the polar edge of the bulge motion in S-N direction and the bulge expansion over the whole field o f view are observed. UT: 19:11:20 19:12:30 19:15:30 19:16:50 19:18:10 19:18:30 Figure 4. Some images of the substorm development from 19:11:20 UT on 30.03.2013 during the recovery phase of the geomagnetic storm associated with RS. The substorm onset is to the North of Apatity and the motion of the South edge of the substorm bulge in N-S direction is observed from the station. Case 3: 10.04.2013. On 10 April 2013 a substorm occurred in non-storm, quiet conditions. The auroral oval lied at higher latitudes auroral activity was seen in the Nortem part of the field of view. The substorm onset was in 21:28 UT at the South border of the auroral oval, to the North from Apatity. The South edge of the auroral bulge was seen to travel to the South reaching Apatity zenith about 21:33:00 UT. This substorm development was presented by chosen images in Fig. 5. UT: 21:28:00 21:29:40 21:30:50 21:31:40 21:33:00 21-34-10 Figure 5. Images of a substorm development on 10.04.2013, under quiet conditions. The substorm onset was to the North of Apatity and the South edge of the bulge was seen to move in N-S direction in the field o f view 16