The f-region ionosphere response on the severe magnetic storm on September 25, 1998

1Taran, VI, 1Grigorenko, Ye.I, 1Klyashko, GA
1Institute of Ionosphere of the National Academy of Sciences of Ukraine and Ministry of Education and Science of Ukraine, Kharkiv, Ukraine
Kosm. nauka tehnol. 2001, 7 ;(Suppl. 2):042-046
Section: Space and Atmospheric Physics
Publication Language: English
This paper presents the results of observation of ionospheric response to severe magnetic storm on September 25, 1998 (Ap = 121). Storm caused the significant changes in the ionosphere behavior: the increase of the height of the electron density peak hmF2, the large fall of the peak electron density NmF2, increase of plasma temperature and significant infringement of plasma exchange processes between low and upper ionosphere.
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