Irradiances from long‐lived stratus‐type clouds at Alert (Canada), Summit (Greenland), and South Pole, previously measured, show correlations with the day‐to‐day input to the global atmospheric electric circuit from the solar wind, as well as with the inputs of low‐ and mid‐latitude thunderstorms and shower clouds. We analyze the measured Alert cloud irradiances, and find differences in the responses to 2, 4, or more solar wind sectors per 27‐days solar rotation. We find seasonal variations in the correlations, with sign reversal in the summer. The correlation coefficients that were found previously for all‐year, all sector types show further increases for just winter months and in addition, for just 2‐sector intervals. At high magnetic latitudes, the ionospheric potential correlates strongly with the solar wind sector structure, and determines the flow of current density (J_Z) to the Earth's surface that passes through clouds and modifies space charge in them. Parameterizations of the potential distribution near the magnetic pole are used in the correlations. The daily average values depend mainly on the solar wind (interplanetary) magnetic field (IMF) B_Y component, with lesser influence of the solar wind speed and IMF B_Z. Mechanisms by which space charge in clouds can affect cloud microphysics and cloud opacity are described and are qualitatively consistent with the correlations, but need quantitative testing.

中文翻译：

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季节和太阳风持续时间对高纬度云与电离层势相关性的影响

先前测量的来自Alert（加拿大），Summit（格陵兰）和South Pole的长期层状云的辐照度也显示出与太阳风向全球大气电路的日常输入的相关性与低纬度和中纬度雷暴和阵雨的输入一样。我们分析了测得的预警云辐照度，发现每27天太阳旋转对2、4或更多个太阳风扇的响应差异。我们发现相关性存在季节性变化，夏季出现符号反转。以前针对全年，所有行业类型发现的相关系数显示仅在冬季月份内，并且仅在两个行业间隔内，相关系数进一步增加。在高纬度地区，电离层的电势与太阳风的扇区结构密切相关，J _Z）到穿过云层并改变其中的空间电荷的地球表面。相关中使用了磁极附近电势分布的参数化。日平均值主要取决于太阳风（行星际）磁场（IMF）B _Y分量，而对太阳风速和IMF B _Z的影响较小。描述了云中的空间电荷影响云微观物理和云不透明性的机制，并在质量上与相关性保持一致，但需要进行定量测试。