A new nonlinear approach to the theory ofEregion irregularities

摘要: In the study of E region irregularities standard procedure is to Fourier analyze in both time and space, that is, describe them as a superposition plane waves. This introduces difficulties when amplitude waves becomes large, thereby adding nonlinear terms original equations forcing all become coupled one another. present work we stay away from analysis use fluid description instabilities limit perturbed electric fields are strictly perpendicular geomagnetic field. We obtain generalization results whereby diffusion-like operator found linear theory now function density itself. Therefore, structures grow, net field seen by ambient plasma inside changes time: it rotates its decreases. Consequently, possible saturation mechanism for reduction structures, which brings threshold velocity conditions. being stated, other mechanisms remain if they require smaller amplitudes than work. Either way, our consistent with intermittency implies largest medium should be rotated zero flow angle conditions measurable amount. Finally, show compared an irregularity-free situation, there average Hall current carried plasma, while Pederseri not affected.