Physics of auroral phenomena : proceedings of the 38th annual seminar, Apatity, 2-6 march, 2015 / [ed. board: A. G. Yahnin, N. V. Semenova]. - Апатиты : Издательство Кольского научного центра РАН, 2015. - 189 с. : ил., табл.

Substorms observations during geomagnetic active period at the beginning o fMarch 2012 10 March 2012 The substorm was observed during the second event of the period 7-17 March2012, the S2 storm. This substorm occurred in the late recovery phase of the storm. The substorm development is presented in Fig. 3, where chosen all­ sky images and all-sky and Guppy (GC) camera keograms are presented. The format o f Fig. 3 is the same as in Fig. 2. The substorm onset in Apatity was in 18:35:50 UT on 10 March 2012 to the North o f the station. It is seen that the auroras moved to South, reached zenith in 18:39 UT and moved further to South. Conclusions It is shown that: 1. Substorms, originated during the main storm phase or near the Dst minimum in the recovery phase, occurred to the South of Apatity, and substorm auroras expanded in North direction; 2. For substorms during the recovery phase or the late recovery phase, auroras were observed near the station zenith or to the North of the Apatity station, and their motion from North to South was registered. Acknowledgments. This study was supported by Program No 9 of the Presidium of RAS. The study is part o f a joint Russian - Bulgarian Project 1.2.10 “The influence of solar activity and solar wind streams on the magnetospheric disturbances, particle precipitations and auroral emissions” of PG1 RAS and IKIT-BAS under the Fundamental Space Research Program between RAS and BAS. We are grateful to J. N. King and N. Papitashvili at AdnetSystems, NASA GSFC and CDAweb for providing the OMNI data. References 1. Schrijver C.J. et al. (2015), Understanding space weather to shield society: A global road map for 2015-2025 commissioned by COSPAR and ILWS. Adv. Space Res., 55,2745-2807. 2. Gonzalez W.D., A.L.C. Gonzalez, B.T. Tsurutani (1990), Dual-peek solar cycle distribution of intense geomagnetic storms. Planet. Space Sci. 38, 181-187. 3. Tsurutani B.T., W.D. Gonzalez, A.L.C. Gonzalez, F.L. Guamieri, N. Gopalswamy, M. Grande, Y. Kamide, Y. Kasahara, G. Lu, I. Mann, R. McPherron, F. Soraas, V. Vasyliunas (2006), Corotating solar wind streams and recurrent geomagnetic activity: A review. J. Geophys. Res. 111, A07S01, doi: 10.1029/2005JA011273. 4. Balogh A., J.T. Gosling, J.R. Jokipii, R. Kallenbach, H. Kunow (1999), Corotating interaction region. Space Sci. Rev., 89, 141-411. 5. Webb D.F., R.A. Howard (1994), The solar cycle variation of coronal mass ejections and the solar wind mass flux. J. Geophys. Res. 99,4201-4220. 6. Burlaga L.F., L.F. Klein, L. Sheeley, N.R. Michels, D.J. Howard, R.A. Koomen, M.J. Schwenn, H. Rosenbauer (1982), A magnetic cloud and a coronal mass ejection. Geophys. Res. Lett. 9, 1317-1320. 7. Huttunen K.E.J., H.E.J. Koskinen, A. Karinen, K. Mursula (2006) Asymmetric development o f magnetospheric storms during magnetic clouds and sheath regions. Geophys. Res. Lett. 33, L06107, doi:10.1029/2005GL024894. 8. Pulkkinen T.I., N.Y. Ganushkina, E.I. Tanskanen, M. Kubyshkina, G.D. Reeves, M.F. Thomsen, C.T. Russel, H.J. Singer, J.A. Slavin, J. Gjerloev (2006), Magnetospheric current systems during stormtime sawtooth events, J. Geophys. Res. 111, A 11S17, doi:10.1029/2006JA011627. 9. Yermolaev Yu.I., M.Yu. Yermolaev (2006), Statistic study on the geomagnetic storm effectiveness of solar and interplanetary events. Adv. Space Res. 37, 1175-1181. 10.Tsurutani B.T., E. Echer, K.Shibata, O.P. Verkhoglyadova, A.J. Mannucci, W.D. Gonzalez, J.U. Kozyra, M. Patzold (2014), The interplanetary causes of geomagnetic activity during the 7-17 March 2012 interval: a CAWSES II overview. J. Space Weather Space Clim., 4, A02, DOI: 10.1051/swsc/2013056. 11. Valchuk T.E. (2013), Solar wind and magnetic storms in the 24Ih solar activity cycle, Astron. Tsirkulyar N1585 ISSN 0236-2457 12. Maris M.G., D. Besliu-Ionescu, K. Georgieva, B. Kirov (2014), Analysis o f the geomagnetic activity during the SC 24 maximum phase, 6* Workshop “Solar influences on the magnetosphere, ionosphere and atmosphere”, 26- 30 May 2014, Sunny Beach, Bulgaria, http://ws-sozopol.stil.bas.bg/. 13. Kozelov, B.V., S.V. Pilgaev, L.P. Borovkov, V.E. Yurov (2012), Multi-scale auroral observations in Apatity: winter 2010-2011 Geosci. Insrum.Method. Data Syst., 1, 1-6. 10