ИСТИНА

The magnetosphere and ionosphere response to the SSC event at 24 January 2012 was investigated using complex of spacecraft and ground-based instruments. The SSC produce strong increase of the energetic particles fluxes (40 keV – 2 MeV), density, temperature inside the magnetosphere as seen by the THEMIS, GOES spacecrafts. It is shown that the SSC impulse is not shock wave in the outer magnetosphere (Mf ≈ 0.4). SSC produce the substorm development on the nightside during prolonged (10 hours) positive Bz-component of IMF and generation of Pc4-5 pulsations on the morning side. We firstly show that SSC cause abrupt increase of the TEC, determined by the GPS receivers, in the morning (ΔTEC= 20–30 %) and evening (ΔTEC≤ 8–9 %) sectors of auroral zone. The increase of the TEC during SSC is not observed on the middle and low latitudes. So obviously the TEC response is caused the particle precipitation into the ionosphere. During the SSC the increase of the electron density at the altitudes 90–200 km registered by the VHF EISCAT radar in Tromso. So the main contribution to TEC increase has the lower part of the ionosphere. SSC produce strong increase of the CNA in Scandinavia and in Svalbard. The strong increase of the aurora intensity at different spectrum lines (450–700 nm) was registered by hyperspectral camera NARUSSCA II of the Polar Geophysical institute in Svalbard. The SSC produce strong increase of the GIC (geomagnetically induced currents) at electric power lines of the Kola Peninsula and Karelia (~30 A).