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Numerical study of the dynamics of ionospheric plasma in quiet and disturbed conditions

Ishanov S. A.  (Doctor of Physical and Mathematical Sciences, Professor, Immanuel Kant Baltic Federal University)

Kashchenko N. M.  (Doctor of Physical and Mathematical Sciences, Professor, Immanuel Kant Baltic Federal University)

Zubkov E. V.  (Senior lecturer, Immanuel Kant Baltic Federal University)

Savkin D. A.  (Docent, Immanuel Kant Baltic Federal University)

Khudenko V. N.  (Candidate of Physical and Mathematical Sciences, Professor, Immanuel Kant Baltic Federal University)

A method for numerical simulation of non-stationary equations of the dynamics of the ionosphere-plasmasphere system in geomagnetic plasma tubes of arbitrary size is presented. The mathematical model is based on the quasi-hydrodynamic description of plasma and considers the dynamics of the ionospheric-plasmospheric exchange, the processes of chemical kinetics, considering impact ionization by energetic magnetospheric ions, heat transfer in the ionospheric plasma, the diffusion of electron-ionic gas, considering the neutral wind, the transfer and thermalization of superthermal electrons. Based on the results of numerical modeling of processes in the near-Earth space plasma under various heliogeophysical conditions, the spatiotemporal distributions of the key macroscopic parameters (density, velocities, and temperatures) of the ionospheric-magnetospheric plasma have been obtained and analyzed.

Keywords:hydrodynamics, numerical simulation, computational experiment, ionosphere, plasmasphere, numerical methods, evolution of disturbances.
 

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Citation link:
Ishanov S. A., Kashchenko N. M., Zubkov E. V., Savkin D. A., Khudenko V. N. Numerical study of the dynamics of ionospheric plasma in quiet and disturbed conditions // Современная наука: актуальные проблемы теории и практики. Серия: Естественные и Технические Науки. -2022. -№06/2. -С. 87-94 DOI 10.37882/2223-2966.2022.06-2.14
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