Articles | Volume 20, issue 3
https://doi.org/10.5194/acp-20-1301-2020
https://doi.org/10.5194/acp-20-1301-2020
Research article
 | 
04 Feb 2020
Research article |  | 04 Feb 2020

The impact of secondary ice production on Arctic stratocumulus

Georgia Sotiropoulou, Sylvia Sullivan, Julien Savre, Gary Lloyd, Thomas Lachlan-Cope, Annica M. L. Ekman, and Athanasios Nenes

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Short summary
Arctic clouds constitute a large source of uncertainty in predictions of future climate. Observations indicate that the number concentration of cloud ice crystals exceeds the concentration of aerosols that can act as ice-nucleating particles (INPs). We show that ice multiplication due to mechanical break-up upon collisions between the few primary ice crystals (formed from INPs) can explain the discrepancy. Including a description of the process in climate models can improve cloud representation.
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