Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.5194/acp-17-14105-2017 |
Partitioning the primary ice formation modes in large eddy simulations of mixed-phase clouds | |
Hande, Luke B.; Hoose, Corinna | |
2017-11-27 | |
发表期刊 | ATMOSPHERIC CHEMISTRY AND PHYSICS |
ISSN | 1680-7316 |
EISSN | 1680-7324 |
出版年 | 2017 |
卷号 | 17期号:22 |
文章类型 | Article |
语种 | 英语 |
国家 | Germany |
英文摘要 | State-of-the-art aerosol-dependent parameterisations describing each heterogeneous ice nucleation mode (contact, immersion, and deposition ice nucleation), as well as homogeneous nucleation, were incorporated into a large eddy simulation model. Several cases representing commonly occurring cloud types were simulated in an effort to understand which ice nucleation modes contribute the most to total concentrations of ice crystals. The cases include a completely idealised warm bubble, semi-idealised deep convection, an orographic cloud, and a stratiform case. Despite clear differences in thermodynamic conditions between the cases, the results are remarkably consistent between the different cloud types. In all the investigated cloud types and under normal aerosol conditions, immersion freezing dominates and contact freezing also contributes significantly. At colder temperatures, deposition nucleation plays only a small role, and homogeneous freezing is important. To some extent, the temporal evolution of the cloud determines the dominant freezing mechanism and hence the subsequent microphysical processes. Precipitation is not correlated with any one ice nucleation mode, instead occurring simultaneously when several nucleation modes are active. Furthermore, large variations in the aerosol concentration do affect the dominant ice nucleation mode; however, they have only a minor influence on the precipitation amount. |
领域 | 地球科学 |
收录类别 | SCI-E |
WOS记录号 | WOS:000416260700003 |
WOS关键词 | NUCLEATING PARTICLES ; CONDENSATION NUCLEI ; AEROSOL-PARTICLES ; MINERAL DUST ; DESERT DUST ; PART 1 ; PARAMETERIZATION ; CONTACT ; MICROPHYSICS ; PRECIPITATION |
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/20537 |
专题 | 地球科学 |
作者单位 | Karlsruhe Inst Technol, Inst Meteorol & Climate Res, Karlsruhe, Germany |
推荐引用方式 GB/T 7714 | Hande, Luke B.,Hoose, Corinna. Partitioning the primary ice formation modes in large eddy simulations of mixed-phase clouds[J]. ATMOSPHERIC CHEMISTRY AND PHYSICS,2017,17(22). |
APA | Hande, Luke B.,&Hoose, Corinna.(2017).Partitioning the primary ice formation modes in large eddy simulations of mixed-phase clouds.ATMOSPHERIC CHEMISTRY AND PHYSICS,17(22). |
MLA | Hande, Luke B.,et al."Partitioning the primary ice formation modes in large eddy simulations of mixed-phase clouds".ATMOSPHERIC CHEMISTRY AND PHYSICS 17.22(2017). |
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