Articles | Volume 20, issue 2
Atmos. Chem. Phys., 20, 683–698, 2020
https://doi.org/10.5194/acp-20-683-2020
Atmos. Chem. Phys., 20, 683–698, 2020
https://doi.org/10.5194/acp-20-683-2020

Research article 21 Jan 2020

Research article | 21 Jan 2020

Modelling the effect of condensed-phase diffusion on the homogeneous nucleation of ice in ultra-viscous particles

Kathryn Fowler et al.

Model code and software

UoM-maul1609/bin-diffusion-model: Full working version P. J. Connolly and K. Fowler https://doi.org/10.5281/zenodo.3355545

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Short summary
Observations of low–temperature cirrus clouds have found unexpectedly low ice crystal numbers and high supersaturations, suggesting an incomplete understanding of the freezing mechanisms under these conditions. The existence of viscous organic aerosol has offered alternative ice nucleation pathways, which have been observed in laboratory studies. We have developed the first cloud parcel model to investigate the effect of viscosity on ice nucleation.
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