Abstract

The calculation results and experimental data on the formation and development of a polarization jet in subauroral latitudes are compared. It is shown that the alternation of vertical and horizontal components of the ionospheric plasma–drift velocity leads to different variations in the main parameters of the F2 layer. An increase in the critical frequency of the F2 layer is revealed in certain cases before the formation of a polarization jet. This behavior of the F2 layer may be caused by a decrease in the rate of the recombination of charged particles due to an increase in the altitude of the layer maximum, which results in particle accumulation at these altitudes. An increase in the critical frequency of the F2 layer can be an additional indicator of the development of a polarization jet over an observation station.

中文翻译：

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极化射流形成过程中电离层参数的变化

摘要

比较了极光下纬向极化射流形成和发展的计算结果和实验数据。结果表明，电离层等离子体漂移速度的垂直分量和水平分量的交替导致F 2层主要参数的不同变化。在某些情况下，在形成偏振射流之前，F 2层的临界频率会增加。F 2层的这种行为可能是由于层最大高度的增加而导致带电粒子的复合速率降低而导致的，这导致在这些高度上的粒子积聚。F的临界频率增加2层可能是观测站上偏振射流发展的附加指标。