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DOI | 10.5194/acp-18-14939-2018 |
A thermodynamic description for the hygroscopic growth of atmospheric aerosol particles | |
Castarede, Dimitri1,2; Thomson, Erik S.1 | |
2018-10-17 | |
发表期刊 | ATMOSPHERIC CHEMISTRY AND PHYSICS
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ISSN | 1680-7316 |
EISSN | 1680-7324 |
出版年 | 2018 |
卷号 | 18期号:20页码:14939-14948 |
文章类型 | Article |
语种 | 英语 |
国家 | Sweden; France |
英文摘要 | The phase state of atmospheric particulate is important to atmospheric processes, and aerosol radiative forcing remains a large uncertainty in climate predictions. That said, precise atmospheric phase behavior is difficult to quantify and observations have shown that "precondensation" of water below predicted saturation values can occur. We propose a revised approach to understanding the transition from solid soluble particles to liquid droplets, typically described as cloud condensation nucleation - a process that is traditionally captured by Kohler theory, which describes a modified equilibrium saturation vapor pressure due to (i) mixing entropy (Raoult's law) and (ii) droplet geometry (Kelvin effect). Given that observations of precondensation are not predicted by Kohler theory, we devise a more complete model that includes interfacial forces giving rise to predeliquescence, i.e., the formation of a brine layer wetting a salt particle at relative humidities well below the deliquescence point. |
领域 | 地球科学 |
收录类别 | SCI-E |
WOS记录号 | WOS:000447633300005 |
WOS关键词 | CLOUD DROPLET FORMATION ; PHASE CLOUDS ; WATER-UPTAKE ; THIN-FILM ; DELIQUESCENCE ; SYSTEM ; NACL ; SALT ; REPRESENTATION ; ACTIVATION |
WOS类目 | Environmental Sciences ; Meteorology & Atmospheric Sciences |
WOS研究方向 | Environmental Sciences & Ecology ; 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/31081 |
专题 | 地球科学 |
作者单位 | 1.Univ Gothenburg, Dept Chem & Mol Biol, Atmospher Sci, Gothenburg, Sweden; 2.Univ Toulouse Paul Sabatier, Toulouse 3, Observ Midipyrenees, Toulouse, France |
推荐引用方式 GB/T 7714 | Castarede, Dimitri,Thomson, Erik S.. A thermodynamic description for the hygroscopic growth of atmospheric aerosol particles[J]. ATMOSPHERIC CHEMISTRY AND PHYSICS,2018,18(20):14939-14948. |
APA | Castarede, Dimitri,&Thomson, Erik S..(2018).A thermodynamic description for the hygroscopic growth of atmospheric aerosol particles.ATMOSPHERIC CHEMISTRY AND PHYSICS,18(20),14939-14948. |
MLA | Castarede, Dimitri,et al."A thermodynamic description for the hygroscopic growth of atmospheric aerosol particles".ATMOSPHERIC CHEMISTRY AND PHYSICS 18.20(2018):14939-14948. |
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