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Information × Registration Number 0201U005453, 0197U016369 , R & D reports Title Study of Lower Ionosphere Disturbances using Low Frequency Electromagnetic Waves of man-made or natural origin popup.stage_title Head Rafal's'kyj V’yacheslav Al'binovych, Registration Date 10-07-2001 Organization Institute of Radiophisics and Electronics NASU popup.description2 Direct and inverse problems are solved of excitation and propagation of the extremely low frequency (ELF) and very low frequency (VLF) electromagnetic waves, in particular: - ELF/VLF spectral structure is explained in the sea water. The character of the spectra is conditioned by polarization and limited experimental techniques of measurements - On the natural radiation in a seismo-active region (Middle Asia) the alterations were examined which could be connected with the preparatory processes of earthquakes - a monitoring technique for global thunderstorm activity was elaborated based on the Poynting vector measurements. The dynamics of global thunderstorm centers was analyzed - a model was constructed of radiation from the lightning discharge that global change of the atmosphere temperature accounts for spatial and temporal configuration of the lightning channel Product Description popup.authors popup.nrat_date 2020-04-02 Close