The solar wind magnetic cloud of October 18–20, 1995: effect on ionosphere of the Russian Asian region Original Research Article

Based on data from a chain of ionospheric stations we investigate the response of ionospheric parameters to the magnetic storm of October, 18–23, 1995. During this storm an abrupt decrease in critical frequencies to 35–45% in the F-region in the daytime hours and intense sporadic E-layers of the auroral type at night were recorded by the entire chain of stations. The analysis of experimental data suggests that the trough boundaries are displaced as far as 41° magnetic latitude.