James, RL orcid.org/0000-0002-5587-6590, Phillips, VTJ and Connolly, PJ (2021) Secondary ice production during the break-up of freezing water drops on impact with ice particles. Atmospheric Chemistry and Physics, 21 (24). pp. 18519-18530. ISSN 1680-7316
Abstract
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.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | © Author(s) 2021. This is an open access article under the terms of the Creative Commons Attribution License (CC-BY 4.0), which permits unrestricted use, distribution and reproduction in any medium, provided the original work is properly cited. |
Dates: |
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Institution: | The University of Leeds |
Academic Units: | The University of Leeds > Faculty of Engineering & Physical Sciences (Leeds) > School of Chemistry (Leeds) > Physical Chemistry (Leeds) |
Depositing User: | Symplectic Publications |
Date Deposited: | 08 Mar 2023 12:03 |
Last Modified: | 08 Mar 2023 12:03 |
Status: | Published |
Publisher: | Copernicus Publications |
Identification Number: | 10.5194/acp-21-18519-2021 |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:197100 |