GSTDTAP  > 地球科学
DOI10.5194/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
ISSN1680-7316
EISSN1680-7324
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
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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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