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Information × Registration Number 0302U001594, 0100U003336 , R & D reports Title Investigations of the Effects of Powerful Sources of Disturbances on Atmosphere -Ionosphere Electrodynamic Coupling popup.stage_title Проведення експериментальних досліджень електродинамічних процесів в іоносфері при наявності зовнішних потужних джерел збурень методами часткових відбиттів. Вдосконалення методик обробки експериментальних даних для збурених умов Head Rozumenko V.T., Registration Date 28-03-2002 Organization Kharkov National University named after V.N.Karazin popup.description2 The research project is concerned with ionospheric elecctrodynamics at middle latitudes during global - scale disturbances caused by discrete energy injections of sufficiently great power. The research project aims at developing models for revealing atmosphere -ionosphere electrodynamic coupling mechanisms in the presence of external high-power disturbances, and at upgrading radio techniques for their probing. The research project applies methods of aeronomy, cosmic electrodynamics, random signal processing, and the partial reflection (MF radar) technique, the high-frequency Doppler probing technique, satellite radio beacon observations, the ionosonde technique, as well as the corresponding radio facilities. It is theoretically proved that an increase in strong mesospheric electric field intensitis results in an increase in the differential absorption of the partially reflected magnetoionic components and in a simultaneous decrease in the local partial reflection coefficients. The achieved results are to be the necessary base for choosing the constitutive equation and for further investigations of processes of electrodynamic coupling of strong mesospheric fields with the ionospheric plasma and their effects on radio wave propagation conditions in the disturbed medium. The results of the project will find applications for the development of and refinement in methods for global-scale and regional-scale monitoring of near-earth space, for the design of new communications networks (including satellite) and the restoration of their performance during signal impairments, for the standard-frequency and time-signal services, radio-location, etc., as well as for developing models for atmosphere-ionosphere -magnetosphere coupling during disturbed conditions, and in education. Product Description popup.authors popup.nrat_date 2020-04-02 Close