Generation of zonal flow and magnetic field by coupled Rossby- Alfvén-Khantadze waves in the Earth's ionospheric E-layer

摘要: It is shown that in the Earth's weakly ionized ionospheric E-layer with dominant Hall conductivity, a new type of coupled Rossby–Alfven–Khantadze (CRAK) electromagnetic (EM) planetary waves, attributable by latitudinal inhomogeneity both Coriolis parameter and geomagnetic field, can exist. Under such coupling, dispersive Alfven waves revealed. The generation sheared zonal flow magnetic field CRAK EM investigated. nonlinear mechanism instability based on parametric excitation interacting four leading to inverse energy cascade direction longer wavelength. A three-dimensional (3D) set equations describing interaction pumping derived. growth rate corresponding conditions for driving them are determined. found mainly stipulated Rossby but intense mean caused waves.