Articles | Volume 24, issue 2
https://doi.org/10.5194/acp-24-911-2024
https://doi.org/10.5194/acp-24-911-2024
Research article
 | 
22 Jan 2024
Research article |  | 22 Jan 2024

Low-temperature ice nucleation of sea spray and secondary marine aerosols under cirrus cloud conditions

Ryan J. Patnaude, Kathryn A. Moore, Russell J. Perkins, Thomas C. J. Hill, Paul J. DeMott, and Sonia M. Kreidenweis

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Short summary
In this study we examined the effect of atmospheric aging on sea spray aerosols (SSAs) to form ice and how newly formed secondary marine aerosols (SMAs) may freeze at cirrus temperatures (< −38 °C). Results show that SSAs freeze at different relative humidities (RHs) depending on the temperature and that the ice-nucleating ability of SSA was not hindered by atmospheric aging. SMAs are shown to freeze at high RHs and are likely inefficient at forming ice at cirrus temperatures.
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