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.

I. Shagimuratov et al Conclusions Analyses shoved that fluctuation activity of GPS signals in the high latitude ionosphere is depended on geomagnetic conditions. Intensity of fluctuations essentially increases during geomagnetic storm. Similarly to the auroral oval the spatial distribution of the fluctuations demonstrate the irregularity oval images. The occurrence of GPS- TEC fluctuation is very sensetive to solar —geomagnetic changes and can use to evaluate space weather conditions. The study showed that the operating high-latitudes GPS stations can provide to monitor in near real-time of the space weather. Acknow legem en ts. Authors thank RFBR grants # 14-05-98820-sever and # 14-07-00512 and Prezidium of RAS Programme #22 for support. References Aarons J., GPS system phase fluctuations at auroral latitudes, Journal of Geophysical Research, 102, A8, pp. 17219- 17231,(1997). Pi X., A.J. Manucci, U.J. Lindqwister, C.M. Ho, Monitoring of global ionosheric irregularities using the worldwide GPS network, Geophysical Research Letters, 24, pp. 2283-2286, (1997). Shagimuratov I.I., A. Krankowski, I. Ephishov, Yu. Cherniak, P. Wielgosz, and I. Zakharenkova, High latitude TEC fluctuations and irregularity oval during geomagnetic storms Earth Planets Space, Vol. 64 (No. 6), pp. 521-529, 2012 . 93