Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1029/2018JD029893 |
Effects of Sea Spray on Microphysics and Intensity of Deep Convective Clouds Under Strong Winds | |
Shpund, J.; Khain, A.; Rosenfeld, D. | |
2019-08-27 | |
发表期刊 | JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES |
ISSN | 2169-897X |
EISSN | 2169-8996 |
出版年 | 2019 |
卷号 | 124期号:16页码:9484-9509 |
文章类型 | Article |
语种 | 英语 |
国家 | Israel |
英文摘要 | Deep convective clouds similar to those arising in the tropical cyclone eyewall are simulated using a parcel model and 2-D slab symmetric cloud model with spectral bin microphysics (the Hebrew University Cloud Model). The size distribution of sea spray particles (SSPs) at cloud base is calculated using the Lagrangian-Eulerian bin microphysics model. The model describes the SSP production, advection, and formation of the size distribution of SSP in the hurricane atmospheric boundary layer at different strong wind speeds. The SSP distributions calculated by the Lagrangian-Eulerian bin microphysics model are used in the parcel model and the Hebrew University Cloud Model to investigate the microphysical and dynamical effects of SSP on clouds. The SSPs ascending in cloud updrafts dramatically increase the number concentration of cloud drops within a wide range of drop sizes. As a result, sea spray creates clouds with unique property combinations of both maritime and continental types. These clouds have droplet size distributions characterized by a high drop concentration and a low effective radius, as in continental clouds. At the same time, the presence of SSP of a few hundred microns in radii triggers intense rain just above the cloud base, which is typical of extreme maritime clouds. In the presence of large sea spray drops, the smallest cloud condensational nuclei, including the smallest SSP, are activated, giving rise to the permanent in-cloud nucleation of small droplets, which produce a high concentration of small ice crystals above the level of homogeneous freezing. We showed that the SSP substantially increased the maximum vertical velocity, cloud water content, and mass contents of ice particles. The results are compared with available observed data. |
英文关键词 | deep convection in hurricanes sea spray effects cloud microphysics numerical modeling |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000490762800033 |
WOS关键词 | MARINE BOUNDARY-LAYER ; ENVIRONMENT INTERFACE INSTABILITY ; HETEROGENEOUS ICE NUCLEATION ; ROLL VORTICES ; PART I ; RESOLVING MODEL ; EMPIRICAL PARAMETERIZATION ; PRECIPITATION FORMATION ; HURRICANE IRENE ; FREEZING DROPS |
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/186169 |
专题 | 气候变化 |
作者单位 | Hebrew Univ Jerusalem, Dept Atmospher Sci, Jerusalem, Israel |
推荐引用方式 GB/T 7714 | Shpund, J.,Khain, A.,Rosenfeld, D.. Effects of Sea Spray on Microphysics and Intensity of Deep Convective Clouds Under Strong Winds[J]. JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,2019,124(16):9484-9509. |
APA | Shpund, J.,Khain, A.,&Rosenfeld, D..(2019).Effects of Sea Spray on Microphysics and Intensity of Deep Convective Clouds Under Strong Winds.JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,124(16),9484-9509. |
MLA | Shpund, J.,et al."Effects of Sea Spray on Microphysics and Intensity of Deep Convective Clouds Under Strong Winds".JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES 124.16(2019):9484-9509. |
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