Abstract A microphysical model has been proposed to assess the scavenging of artificial aerosol particles from the atmosphere by raindrops, where the raindrops are regarded as a highly rarefied filtering medium. The effect of aerodynamic parameters of aerosol particles on the efficiency of their capture by raindrops E and on the scavenging coefficient Λ has been numerically investigated for different precipitation rates I . A new formula has been proposed to evaluate the efficiency of aerosol capture by the raindrops. This model has been compared with other well-known models. The proposed model has been found to describe the interaction between aerosol particles and raindrops more strictly than the microphysical models considered in this study.

中文翻译：

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气溶胶粒子参数对其从大气中被雨滴清除的影响

摘要 已经提出了一种微物理模型来评估雨滴从大气中清除人工气溶胶颗粒，其中雨滴被认为是一种高度稀薄的过滤介质。气溶胶粒子的空气动力学参数对其被雨滴 E 捕获的效率和清除系数 Λ 的影响已针对不同的降水率 I 进行了数值研究。已经提出了一个新公式来评估雨滴捕获气溶胶的效率。该模型已与其他知名模型进行了比较。已发现所提出的模型比本研究中考虑的微物理模型更严格地描述了气溶胶颗粒和雨滴之间的相互作用。