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Information × Registration Number 0220U100538, 0117U004868 , R & D reports Title The development of the global semi-empirical model of the electron density of the ionosphere at the current time popup.stage_title Head Rozumenko Viktor T., Registration Date 21-01-2020 Organization V.N. Karazin Kharkiv National University popup.description2 The research objective: electron concentration in the ionosphere; ionospheric disturbances caused by various natural and anthropogenic sources; processes disturbing the ionosphere and geomagnetic field. The scientific research aim: simulation of ionospheric response to earthquakes, the fall of large meteorites, and the precipitation of energetic particles into the northern hemisphere magnetospheric casp; checking the empirical real time model Ukraine 2013 based on observation data; revealing common features concerning origination and propagation of travelling ionospheric disturbances (TID); development of an empiric model of disturbance sources. Complex studies of prediction errors concerning temporal quasi-periods of TIDs generated by energy and momentum local sources are carried out based on data obtained by ionozondes, positioned at range of about 1000 - 4000 km from the disturbance source. It was established that the prediction errors of temporal quasi-half-periods are about 6%. The errors do not depend on the explosion energy (in the range from 1 Mt TNT to 58 Mt TNT), the source longitude, time of day, and other helio-geophysical conditions. A new ground-based diagnostic method of temporal quasi-periods of acoustic gravitational waves (AGW) is develop. This method based on the registration of geomagnetic pulsations has allowed us to directly investigate the irregularities of the neutral atmosphere and to find out the relationship between the AGW and TID spatial and temporal periods, life time, delay the arrive times of TIDs relative to AGWs, and other parameters. Implementation of this method, allows geophysicist not to use the approximation concerning the identity of spatial-temporal parameters of AGW and TID. It was established based on results of ionosphere radiosounding from boards of low-orbital satellits obtained at V.N. Karazin Kharkiv National University during multiyear observation under different helio-geophysical conditions that the relative amplit Product Description popup.authors Gokov Olexander M. Dorohov Vasiliy L. Мartynenko Sergey I. Milovanov Yurii B. Naboka Anatoliy M. Rozumenko Victor T. Somov Vladimir H. Tyrnov Oleg F. Fedorenko Yurii P. popup.nrat_date 2020-04-02 Close