Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1002/2017JD026641 |
Influences of drizzle on stratocumulus cloudiness and organization | |
Zhou, Xiaoli1; Heus, Thijs2; Kollias, Pavlos3,4 | |
2017-07-16 | |
发表期刊 | JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES
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ISSN | 2169-897X |
EISSN | 2169-8996 |
出版年 | 2017 |
卷号 | 122期号:13 |
文章类型 | Article |
语种 | 英语 |
国家 | Canada; USA |
英文摘要 | Large-eddy simulations are used to study the influence of drizzle on stratocumulus organization, based on measurements made as part of the Second Dynamics and Chemistry of the Marine Stratocumulus field study-II. Cloud droplet number concentration (Nc) is prescribed and considered as the proxy for different aerosol loadings. Our study shows that the amount of cloudiness does not decrease linearly with precipitation rate. An Nc threshold is observed below which the removal of cloud water via precipitation efficiently reduces cloud depth, allowing evaporation to become efficient and quickly remove the remaining thin clouds, facilitating a fast transition from closed cells to open cells. Using Fourier analysis, stratocumulus length scales are found to increase with drizzle rates. Raindrop evaporation below 300 m lowers the cloud bases and amplifies moisture variances in the subcloud layer, while it does not alter the horizontal scales in the cloud layer, suggesting that moist cold pool dynamic forcings are not essential for mesoscale organization of stratocumulus. The cloud scales are greatly increased when the boundary layer is too deep to maintain well mixed. |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000407900300018 |
WOS关键词 | MARINE BOUNDARY-LAYER ; LARGE-EDDY SIMULATIONS ; MESOSCALE CELLULAR CONVECTION ; SOUTHEAST PACIFIC STRATOCUMULUS ; OPEN CELLS ; STRATIFORM CLOUDS ; VOCALS-REX ; PART 1 ; PRECIPITATION ; AEROSOL |
WOS类目 | Meteorology & Atmospheric Sciences |
WOS研究方向 | Meteorology & Atmospheric Sciences |
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/33318 |
专题 | 气候变化 |
作者单位 | 1.McGill Univ, Dept Atmospher & Ocean Sci, Montreal, PQ, Canada; 2.Cleveland State Univ, Dept Phys, Cleveland, OH 44115 USA; 3.SUNY Stony Brook, Sch Marine & Atmospher Sci, Stony Brook, NY 11794 USA; 4.Brookhaven Natl Lab, Dept Environm & Climate Sci, Upton, NY 11973 USA |
推荐引用方式 GB/T 7714 | Zhou, Xiaoli,Heus, Thijs,Kollias, Pavlos. Influences of drizzle on stratocumulus cloudiness and organization[J]. JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,2017,122(13). |
APA | Zhou, Xiaoli,Heus, Thijs,&Kollias, Pavlos.(2017).Influences of drizzle on stratocumulus cloudiness and organization.JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,122(13). |
MLA | Zhou, Xiaoli,et al."Influences of drizzle on stratocumulus cloudiness and organization".JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES 122.13(2017). |
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