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DOI | 10.1029/2021GL094621 |
Hygroscopic seeding effects of giant aerosol particles simulated by the Lagrangian-particle-based direct numerical simulation | |
Sisi Chen; Lulin Xue; M.K. Yau | |
2021-10-07 | |
发表期刊 | Geophysical Research Letters |
出版年 | 2021 |
英文摘要 | This study investigated the microphysical responses to seeding giant aerosol particles and supersaturation fluctuations. A Lagrangian-particle-based DNS is used to resolve the interactions among individual aerosols, droplets, and the fluctuating supersaturation field within a turbulent, adiabatic air parcel. It is shown that the giant seeding particles exert strong solute effects throughout the entire simulation to alter the subsequent collision-coalescence process, implying the importance of including the solute term in droplet growth. Small-scale supersaturation fluctuations in adiabatic cloud regions have a negligible influence on aerosol activation and droplet condensation. This is because in regions free of entrainment and/or large-scale mixing, the weak supersaturation fluctuations can be quickly smoothed out via diffusion and remain relatively small in magnitude (with a standard deviation ). In contrast, the activation in our simulations is determined by the seeding modulation of the parcel-mean supersaturation. |
领域 | 气候变化 |
URL | 查看原文 |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/339942 |
专题 | 气候变化 |
推荐引用方式 GB/T 7714 | Sisi Chen,Lulin Xue,M.K. Yau. Hygroscopic seeding effects of giant aerosol particles simulated by the Lagrangian-particle-based direct numerical simulation[J]. Geophysical Research Letters,2021. |
APA | Sisi Chen,Lulin Xue,&M.K. Yau.(2021).Hygroscopic seeding effects of giant aerosol particles simulated by the Lagrangian-particle-based direct numerical simulation.Geophysical Research Letters. |
MLA | Sisi Chen,et al."Hygroscopic seeding effects of giant aerosol particles simulated by the Lagrangian-particle-based direct numerical simulation".Geophysical Research Letters (2021). |
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