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The Characteristics of Atmospheric Turbidity and Sand and Dust over Heihe Basin Desert and Gobi Area
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摘要: 通过对甘肃省河西黑河流域沙漠、戈壁地区1990年夏季?ngstr?n大气浑浊度系数的计算分析，总结出了该种特殊下垫面条件下大气浊度特征。并由大气浑浊度系数及波长指数的变化，定性讨论了这一地区大气中沙尘的消光特性及其生成、消散过程。进一步应用Volz方法和Arao方法粗略地估计了这一地区大气在不同条件下的沙尘含量。Abstract: The characteristics of atmospheric turbidity over Desert and Gobi area where there is special boundary layer are summarized by calculating and analysising atmospheric turbidity in summer 1990. In terms of the variations of the coefficient of atmospheric turbidity β and wave-length index α, the optical thickness, the genesis and dissipation of the atmospheric sand and dust are discussed. Furthermore, using the methods from Volz. and Arao. the contents of sand and dust in the local atmosphere under the conditions of different weather are roughly estimated
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