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DOI | 10.1175/JAS-D-18-0052.1 |
Secondary Ice Formation during Freezing of Levitated Droplet | |
Lauber, Annika1,3; Kiselev, Alexei1; Pander, Thomas1,4; Handmann, Patricia1,5; Leisner, Thomas1,2 | |
2018-08-01 | |
发表期刊 | JOURNAL OF THE ATMOSPHERIC SCIENCES |
ISSN | 0022-4928 |
EISSN | 1520-0469 |
出版年 | 2018 |
卷号 | 75期号:8页码:2815-2826 |
文章类型 | Article |
语种 | 英语 |
国家 | Germany; Switzerland |
英文摘要 | The formation of secondary ice in clouds, that is, ice particles that are created at temperatures above the limit for homogeneous freezing without the direct involvement of a heterogeneous ice nucleus, is one of the longest-standing puzzles in cloud physics. Here, we present comprehensive laboratory investigations on the formation of small ice particles upon the freezing of drizzle-sized cloud droplets levitated in an electrodynamic balance. Four different categories of secondary ice formation (bubble bursting, jetting, cracking, and breakup) could be detected, and their respective frequencies of occurrence as a function of temperature and droplet size are given. We find that bubble bursting occurs more often than droplet splitting. While we do not observe the shattering of droplets into many large fragments, we find that the average number of small secondary ice particles released during freezing is strongly dependent on droplet size and may well exceed unity for droplets larger than 300 mu m in diameter. This leaves droplet fragmentation as an important secondary ice process effective at temperatures around -10 degrees C in clouds where large drizzle droplets are present. |
领域 | 地球科学 |
收录类别 | SCI-E |
WOS记录号 | WOS:000440281300003 |
WOS关键词 | MIXED-PHASE CLOUD ; PRECIPITATION DEVELOPMENT ; PARTICLE CONCENTRATIONS ; WATER DROPLETS ; MULTIPLICATION ; CUMULUS ; FRAGMENTATION ; MICROPHYSICS ; CRYSTALS ; ELECTRIFICATION |
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/29646 |
专题 | 地球科学 |
作者单位 | 1.Karlsruhe Inst Technol, Inst Meteorol & Climate Res, Atmospher Aerosol Res, Karlsruhe, Germany; 2.Heidelberg Univ, Inst Umweltphys, Heidelberg, Germany; 3.Swiss Fed Inst Technol, Inst Atmospher & Climate Sci, Zurich, Switzerland; 4.Eckelmann AG, Forsch Kaltetech, Mainz, Germany; 5.GEOMAR Helmholtz Ctr Ocean Res, Kiel, Germany |
推荐引用方式 GB/T 7714 | Lauber, Annika,Kiselev, Alexei,Pander, Thomas,et al. Secondary Ice Formation during Freezing of Levitated Droplet[J]. JOURNAL OF THE ATMOSPHERIC SCIENCES,2018,75(8):2815-2826. |
APA | Lauber, Annika,Kiselev, Alexei,Pander, Thomas,Handmann, Patricia,&Leisner, Thomas.(2018).Secondary Ice Formation during Freezing of Levitated Droplet.JOURNAL OF THE ATMOSPHERIC SCIENCES,75(8),2815-2826. |
MLA | Lauber, Annika,et al."Secondary Ice Formation during Freezing of Levitated Droplet".JOURNAL OF THE ATMOSPHERIC SCIENCES 75.8(2018):2815-2826. |
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