Solar Extreme Events of 2003:
Fundamental Science and Applied Aspects

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Deformation of the ionosphere during the space weather events on October-November 2003
Stanislawska I., Gulyaeva T.,

DEFORMATION OF THE IONOSPHERE DURING THE SPACE WEATHER EVENTS ON OCTOBER-NOVEMBER 2003 Iwona Stanislawska(1) and Tamara Gulyaeva(2) (1) Space Research Center, Bartyska 18-A, 00-716 Warsaw, Poland (2) IZMIRAN, 142190 Troitsk, Moscow Region, Russia We present the spatial maps of the ionosphere-plasmasphere slab thickness (), generated as a ratio of the total electron content (TEC) to the F-regin peak electron density (NmF2) from the instantaneous maps of TEC and foF2 at latitudes 35N to 70N, and longitudes -10E to 40E. Kriging mapping technique is used with independent networks of GPS-TEC and ionosonde observations for the space weather events (SWE) on 28 October to 4 November 2003. Evolution of maps has shown deformation of the ionosphere during the period of SWE. According to extreme values of >1000 km one should admit that the upper boundary of the ionosphere is shifted upward during the storm forming something like the ionosphere-tail over the nighttime high latitude trough of ionization.

Skobeltsyn Institute of Nuclear Physics, Moscow State University, 2004