Articles | Volume 16, issue 4
Atmos. Chem. Phys., 16, 2025–2042, 2016
https://doi.org/10.5194/acp-16-2025-2016

Special issue: Results from the ice nucleation research unit (INUIT) (ACP/AMT...

Atmos. Chem. Phys., 16, 2025–2042, 2016
https://doi.org/10.5194/acp-16-2025-2016

Research article 23 Feb 2016

Research article | 23 Feb 2016

Pre-activation of ice-nucleating particles by the pore condensation and freezing mechanism

Robert Wagner et al.

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Short summary
We have investigated the enhancement of the ice nucleation ability of well-known and abundant ice nucleating particles like dust grains due to pre-activation. Temporary exposure to a low temperature (228 K) provokes that pores and surface cracks of the particles are filled with ice, which makes them better nuclei for the growth of macroscopic ice crystals at high temperatures (245–260 K).
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