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Modeling the electron temperature distribution in F2 region of high-latitude ionosphere for winter solstice conditions

机译：冬至条件下高纬度电离层F2区电子温度分布的模拟

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Using the three-dimensional model of the high-latitude ionosphere in Euler variables, which takes into account the mismatch between geographic and geomagnetic poles, we study the behavior of the electron temperature Te in the F2 region as a function of universal time. We present results of the numerical modeling of spatial-temporal distribution of electron temperature in the F2 region for winter solstice, minimum solar activity, and moderate geomagnetic activity. The electron temperature distribution in the F2 region of the high-latitude ionosphere in winter is shown to be characterized by a Te increase in dawn and dusk sectors. Further, the mismatch between the poles leads to regular longitudinal features in Te distribution during Earth’s daily rotation. Thus, at 05 UT, when the Eastern Hemisphere is illuminated, the elevated Te zone is formed only in the dawn sector, and at 17 UT, when the Western Hemisphere is illuminated such zones are observed in both the sectors. We discuss reasons for the formation of the regions with elevated electron temperature depending on the universal time. Results of numerical experiments are compared with similar results obtained with other models.
机译：使用欧拉变量中的高纬度电离层的三维模型，该模型考虑了地理和地磁极之间的不匹配，我们研究了F2区域中电子温度Te随世界时间变化的行为。我们提出了冬至，最低太阳活动和中等地磁活动的F2区电子温度时空分布数值模型的结果。冬季高纬度电离层F2区域的电子温度分布表现为黎明和黄昏时段Te升高。此外，两极之间的不匹配会导致地球日常旋转时Te分布中的规则纵向特征。因此，在05 UT，当东半球被照亮时，升高的Te区仅在黎明区形成，而在17 UT，当西半球被照亮时，在两个区中都观察到了这些区。我们讨论了取决于普遍时间而形成具有升高的电子温度的区域的原因。将数值实验的结果与其他模型获得的类似结果进行比较。

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