Abstract

The paper presents the results of a numerical simulation of ionospheric disturbances caused by a point thermospheric heat source, which mimic the dissipation effect of acoustic-gravity waves propagating from the region of a meteorological storm. It is shown that ionospheric effects have an extensive spatial structure and are more pronounced during the day than at night. The results of numerical simulations show decreases in the critical frequency of the F2 layer (foF2) and in the total concentration of electrons to the northwest from the heat source maximum, as well as increases in the values of these parameters to the south and southeast from the heat source maximum up to the equatorial region. A comparative analysis of the daytime and nighttime disturbances of atmospheric parameters is given, and a conclusion is drawn on the causes of weakly pronounced changes in the nighttime ionosphere.

中文翻译：

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气象风暴引起的电离层效应的模拟

摘要

本文介绍了由点热球热源引起的电离层扰动的数值模拟结果，其模拟了从气象风暴区域传播的重力波的耗散效应。结果表明，电离层效应具有广泛的空间结构，白天比晚上更明显。数值模拟的结果示出了在F2层的临界频率降低（FOF2）以及从热源最大值到西北的电子总浓度，以及从热源最大值到赤道区域到南和东南的这些参数的值的增加。给出了白天和夜间大气参数扰动的比较分析，并得出了夜间电离层变化不明显的原因的结论。