Reaction of the high-latitude lower ionosphere on the 20 March 2015 solar eclipse
Results of ionospheric effects observations of the 20 March 2015 total solar eclipse in the high-latitude lower ionosphere are presented. Measurements were implemented by the partial reflections radar and the riometer located at the radiophysical observatory “Tumanny” of the Polar Geophysical Institute (69N, 35.7E, Murmansk region). The effect of variations of the electron concentration with variations of solar ionization and also electron concentration changes under the influence of wave processes were observed. Compliance between the periods of change of the total electron content and the space noise level fixed by the riometer was obtained. Presence of three maxima of the total electron content, bifurcation of waves and suppression of waves of the smaller periods at the maximum of the eclipse were noted.