Drift turbulence in plasma of lower hybrid solitary structures in the Earth’s ionosphere

Dmitry Chibisov Ukrainian State Academy of Railway Transport https://orcid.org/0000-0002-6154-9772

Keywords: lower-hybrid solitary structures, lower-hybrid cavities, ionosphere, the drift turbulence, turbulent diffusion

Abstract

The linear and nonlinear stages of the drift instability in plasma of lower hybrid solitary structures that are observed in the Earth's ionosphere are investigated. Because these structures have axial symmetry, the analysis is based on the theory, which considers as elementary small-scale perturbations the cylindrical waves. It is shown that the linear stage of drift instability with an increase of oscillations amplitude changes to the nonlinear stage in a broad spectrum of the wave numbers. A quasi-linear stage of instability is considered, the estimates of turbulent diffusion of ions, which leads to the destruction of these structures, are performed.

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