气候变化领域集成服务门户(CCPortal): Secondary ice production during the break-up of freezing water drops on impact with ice particles

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DOI	10.5194/acp-21-18519-2021
	Secondary ice production during the break-up of freezing water drops on impact with ice particles
	James R.L.; Phillips V.T.J.; Connolly P.J.
发表日期	2021
ISSN	1680-7316
起始页码	18519
结束页码	18530
卷号	21 期号:24
英文摘要	We provide the first dedicated laboratory study of collisions of supercooled water drops with ice particles as a secondary ice production mechanism. We experimentally investigated collisions of supercooled water drops (∼5 mm in diameter) with ice particles of a similar size (∼6 mm in diameter) placed on a glass slide at temperatures >-12 °C. Our results showed that secondary drops were generated during both the spreading and retraction phase of the supercooled water drop impact. The secondary drops generated during the spreading phase were emitted too fast to quantify. However, quantification of the secondary drops generated during the retraction phase with diameters >0.1 mm showed that 5-10 secondary drops formed per collision, with approximately 30 % of the secondary drops freezing over a temperature range between-4 and-12 ° C. Our results suggest that this secondary ice production mechanism may be significant for ice formation in atmospheric clouds containing large supercooled drops and ice particles. © 2021 Rachel L. James et al.
语种	英语
scopus关键词	cloud droplet; formation mechanism; ice breakup; particle size; supercooling; temperature
来源期刊	ATMOSPHERIC CHEMISTRY AND PHYSICS
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/246352
作者单位	Department of Earth and Environmental Sciences, The University of Manchester, Manchester, United Kingdom; Department of Physical Geography and Ecosystem Science, Lund University, Lund, Sweden
推荐引用方式 GB/T 7714	James R.L.,Phillips V.T.J.,Connolly P.J.. Secondary ice production during the break-up of freezing water drops on impact with ice particles[J],2021,21(24).
APA	James R.L.,Phillips V.T.J.,&Connolly P.J..(2021).Secondary ice production during the break-up of freezing water drops on impact with ice particles.ATMOSPHERIC CHEMISTRY AND PHYSICS,21(24).
MLA	James R.L.,et al."Secondary ice production during the break-up of freezing water drops on impact with ice particles".ATMOSPHERIC CHEMISTRY AND PHYSICS 21.24(2021).