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Information × Registration Number 0224U000348, 0119U101286 , R & D reports Title Identification and modeling of collective processes in near space popup.stage_title Head Cheremnykh Oleg K., Доктор фізико-математичних наук Registration Date 05-01-2024 Organization Space Research Institute popup.description2 Theoretical models of acoustic-gravity waves in the upper atmosphere of the Earth, which take into account the peculiarities of the real atmosphere, have been developed. It has been proven that the presence of a shielding surface current leads to the stabilization of the helical instability of magnetic flux rope under the conditions of the solar corona. The possibility of the appearance of kinetic Alfvén waves and kinetic ion-acoustic waves in the pre-flare plasma of the active region is shown. A hydrodynamic model of the solar magnetic cycle using helioseismological data on the differential rotation of the Sun's convective zone and calculated hydrodynamic global plasma currents is presented. Increments of instability of acoustic-gravity waves in a quasi-isothermal atmosphere with a random vertical temperature profile were found. Three-dimensional vortex dipole solitons in self-gravitating systems are found and shown to be stable. According to the data of the European spacecraft "Cluster-II", a comprehensive analysis of turbulent and wave processes in the tail of the Earth's magnetosphere was carried out. The basics of non-stochastic identification and the procedure for finding the marginal dimension of the approximate model, consistent in accuracy with the errors in the data, have been developed. The peculiarities of the identification procedure of complex multi-connected systems, which can be described using models of cognitive maps, are considered. An analytical theory was built that describes the radiation of a power transmission line with a frequency of 50 or 60 Hz in the height range from the Earth's surface to the magnetosphere. Product Description popup.authors Vlasov Dmytro I. Voitsekhovska Anna D. Volosov Victor Victorovych Gubarev Viacheslav F. Zhul Ihor T. Klymenko Yu. O. Liudmyla V. Kozak Kryshtal Oleksandr N. Kryuchkov Yevhen I. Kuzmych Andrii A. Lizunov Georgii V. Lashkin Volodymyr Mykolaiovych Loginov Oleksii O. Maksymyuk Lyubov Volodymyrivna Melnychuk Serhii V. Pyankova Olena V. Parnovskii Oleksii S Rapoport Yuriy G. Reshetnik Volodymyr M. Salnikov Mykola Mykolaiovych Fedorenko Alla K. Tsaruk Nina P. Cheremnykh Sergii O. Shevchenko V. M. popup.nrat_date 2024-01-05 Close