Abstract—

The conditions for the existence of spatially periodic flat nonlinear small-scale plasma and electric field structures with a characteristic size L on the order of several meters are found at altitudes of the D layer of the ionosphere. It is shown that for their description it is necessary to abandon the approximation of plasma quasineutrality, to take into account the presence of ions of both signs and electrons, the slow motion of these structures with respect to a neutral gas with the velocity \(U \ll {{V}_{ \pm }},\) significantly lower than the ion drift velocity V_±, and also take into account the difference in temperature of electrons and ions in the strong electric field. The structure of nonlinear waves in the plasma and its changes depending on the wave velocity U and other parameters of the plasma and geomagnetic field are calculated. The formation of such structures leads to the disruption of the radio communication and can be used as an ionospheric precursor of earthquakes.

中文翻译：

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电离层D层等离子体中的非线性小尺度波的结构

摘要-

在电离层D层的高度发现了存在特征尺寸L约为几米的空间周期性平面非线性小规模等离子体和电场结构的条件。结果表明，为描述起见，有必要放弃等离子体准中性的近似，以考虑符号和电子两者的离子的存在，这些结构相对于中性气体的速度为\（U \ ll {{V} _ {\ pm}}，\）明显低于离子漂移速度V _±，并且还要考虑到强电场中电子和离子的温度差异。计算了等离子体中非线性波的结构及其随波速U以及等离子体和地磁场其他参数的变化。这种结构的形成导致无线电通信的中断，并且可以用作地震的电离层前兆。