Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1029/2021GL094740 |
Cloud top radiative cooling rate drives non-precipitating stratiform cloud responses to aerosol concentration | |
Abigail S. Williams; Adele L. Igel | |
2021-09-13 | |
发表期刊 | Geophysical Research Letters |
出版年 | 2021 |
英文摘要 | Increases in aerosol concentration are well known to influence the microphysical processes and radiative properties of clouds. By reducing droplet size, an increase in aerosol can lessen collision efficiency and increase liquid water path (LWP) in precipitating clouds or enhance evaporation rate and decrease LWP in non-precipitating clouds. We utilize large eddy simulations to further investigate these aerosol indirect effects in Arctic mixed-phase clouds and find, in agreement with previous studies, precipitating clouds to experience an increase in LWP and non-precipitating clouds a decrease in LWP. Most importantly however, our results reveal a different explanation for why such an LWP decrease occurs in decoupled, non-precipitating clouds. We find enhanced evaporation near cloud top to be driven primarily by a strengthening of maximum radiative cooling rate with aerosol concentration which drives stronger entrainment, an effect that holds true even in clouds that are optically thick. |
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/338741 |
专题 | 气候变化 |
推荐引用方式 GB/T 7714 | Abigail S. Williams,Adele L. Igel. Cloud top radiative cooling rate drives non-precipitating stratiform cloud responses to aerosol concentration[J]. Geophysical Research Letters,2021. |
APA | Abigail S. Williams,&Adele L. Igel.(2021).Cloud top radiative cooling rate drives non-precipitating stratiform cloud responses to aerosol concentration.Geophysical Research Letters. |
MLA | Abigail S. Williams,et al."Cloud top radiative cooling rate drives non-precipitating stratiform cloud responses to aerosol concentration".Geophysical Research Letters (2021). |
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