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The impact of atmospheric aerosol particles on the brightness of the night sky
Journal of Quantitative Spectroscopy and Radiative Transfer ( IF 2.3 ) Pub Date : 2020-07-11 , DOI: 10.1016/j.jqsrt.2020.107168
Tomasz Ściężor , Anna Czaplicka

This paper analyses the impact of various types of aerosols, both of natural and anthropogenic origin, on the brightness of the night sky glow in southern Poland. The particles of particulate matter, related to the combustion of solid fuels in the winter, the volcanic or desert dust, as well as mists and haze, are considered as the artificial light scattering sources. Measurements of the brightness of the cloudless and moonless night sky were done in 2009–2016, both within the city of Krakow and in suburban areas, as well as in mountainous ones. The strong linear correlation between the brightness of such sky and the concentration of particulate matter is shown. The acoustic sounding of the atmosphere (SODAR) has indicated the possibility of a relationship between the brightness of the night sky and the amount of such particulates, which accumulate in atmospheric boundary layers. The usefulness of the theoretical model of horizontal transport of dust in the atmosphere (FAPPS) for forecasting the brightness of the night sky glow is also pointed out. A clear effect of the Saharan origin dust clouds on the brightness of the night sky glow is shown. This brightness, in the conditions of a low level of light pollution, is associated with the forecasted optical density of such clouds. It is also demonstrated, that with the thickening of mist, the impact of distant light sources on the brightness of the night sky decreases, but the one of a nearby sources becomes more significant. The conclusion states that anthropogenic particulate matter has the greatest impact on the brightness of the cloudless night sky glow in winter. In areas heavily polluted with light, fogs and mist are particularly important. In areas with low levels of light pollution, the clear impact of desert dust is visible.



中文翻译:

大气气溶胶颗粒对夜空亮度的影响

本文分析了自然和人为来源的各种气溶胶对波兰南部夜空辉光的影响。与冬季固体燃料燃烧,火山或沙漠尘埃以及雾气和霾有关的颗粒物颗粒被认为是人造光散射源。在2009年至2016年期间,对克拉科夫市和郊区以及山区的无云夜空的亮度进行了测量。显示了这种天空的亮度与颗粒物浓度之间的强线性关系。大气中的声音(SODAR)已表明夜空亮度与此类微粒数量之间存在关系的可能性,累积在大气边界层中。还指出了大气中尘埃水平传输理论模型(FAPPS)对于预测夜空辉光的有效性。显示了撒哈拉沙漠尘埃云对夜空辉光的明显影响。在光污染水平较低的情况下,这种亮度与此类云的预测光密度相关。还表明,随着雾的增厚,远处的光源对夜空亮度的影响减小,但是附近的光源之一变得更加明显。结论指出,人为颗粒物对冬季无云夜空辉光的亮度影响最大。在光污染严重的地区 雾和薄雾尤为重要。在光污染程度较低的地区,可以看到沙漠尘埃的明显影响。

更新日期:2020-07-11
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