Characteristics of Wave Processes in the Ionosphere Over Kharkiv During Solar Eclipse of 20 March 2015

Abstract

We present the results of detection and parameter estimation of ultrawideband signals in the incoherent scatter power, electron density and plasma temperatures occurred over Kharkiv during the solar eclipse of 20 March 2015. The prevailing periods are detected to be of 50 - 60 min in all observed parameters. The durations of wave disturbances were of 70 - 120 min. We detected the increase in Hurst exponent values during solar eclipse period for all analyzed dependences. The whole signal values of fractional bandwidth were close between the incoherent scatter power and the electron density on the one hand, and between the ion and electron temperatures on the other hand. Improved methods for ultrawideband signal detection in a number of observed dependences ensure the reliability of retrieval of wave response on different natural and artificial high energy events, including solar eclipses.