Abstract The aim of this study is to reveal the direct radiative effect of aerosols on global solar shortwave radiation in the region of peak Musala, which has specific climatic and environmental conditions. Correlations between the measured global solar shortwave radiation and the total aerosol content, Angstrom exponent in the visible spectrum, absorption of radiation by aerosols, scattering of radiation by aerosols, Single Scattering Albedo (SSA) of aerosols are calculated using statistical methods. The results show that the underlying surface through its albedo plays a significant role in terms of the radiative effect of aerosols. At low albedo values, the higher aerosol amounts exert, at surface level, a negative radiative effect and vice versa. However, at high albedo values, the higher aerosol amounts exert, at surface level, a positive radiative effect and vice versa. This is due to the fact that a higher albedo leads to larger amounts of reflected and scattered shortwave radiation, especially close to the earth's surface, which at higher aerosol amounts result in an increase in the amount of scattered shortwave radiation, which also increases the global solar shortwave radiation. The relationships between global solar shortwave radiation and aerosols are, in most cases, non-linear, which is due to the statistical distributions of the studied parameters, which are not normal. Disclosed dependencies should be taken into account when modeling the impact of aerosols on climate change.

中文翻译：

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保加利亚穆萨拉高山站气溶胶对全球太阳短波辐照度的直接影响

摘要 本研究旨在揭示具有特定气候和环境条件的穆萨拉峰地区气溶胶对全球太阳短波辐射的直接辐射效应。测量的全球太阳短波辐射与总气溶胶含量、可见光谱中的埃指数、气溶胶的辐射吸收、气溶胶的辐射散射、气溶胶的单散射反照率 (SSA) 之间的相关性使用统计方法计算。结果表明，下垫面通过其反照率对气溶胶的辐射效应起着重要作用。在低反照率值下，较高的气溶胶量会在地表产生负辐射效应，反之亦然。然而，在高反照率值下，较高的气溶胶量在地表产生 正辐射效应，反之亦然。这是因为较高的反照率会导致大量反射和散射的短波辐射，尤其是在靠近地球表面的地方，气溶胶量较高时会导致散射短波辐射量增加，这也增加了全球太阳短波辐射。全球太阳短波辐射与气溶胶之间的关系在大多数情况下是非线性的，这是由于研究参数的统计分布不正常。在模拟气溶胶对气候变化的影响时，应考虑公开的相关性。s 表面，在较高的气溶胶量下会导致散射短波辐射量增加，这也增加了全球太阳短波辐射量。全球太阳短波辐射与气溶胶之间的关系在大多数情况下是非线性的，这是由于研究参数的统计分布不正常。在模拟气溶胶对气候变化的影响时，应考虑公开的相关性。s 表面，在较高的气溶胶量下会导致散射短波辐射量增加，这也增加了全球太阳短波辐射量。全球太阳短波辐射与气溶胶之间的关系在大多数情况下是非线性的，这是由于研究参数的统计分布不正常。在模拟气溶胶对气候变化的影响时，应考虑公开的相关性。