The effect of marine ice-nucleating particles on mixed-phase clouds

Raatikainen, Tomi; Prank, Marje; Ahola, Jaakko; Kokkola, Harri; Tonttila, Juha; Romakkaniemi, Sami

doi:https://doi.org/10.5194/acp-22-3763-2022

Articles | Volume 22, issue 6

https://doi.org/10.5194/acp-22-3763-2022

© Author(s) 2022. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/acp-22-3763-2022

© Author(s) 2022. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 22, issue 6

Research article

|

21 Mar 2022

Research article |

| 21 Mar 2022

The effect of marine ice-nucleating particles on mixed-phase clouds

Tomi Raatikainen, Marje Prank, Jaakko Ahola, Harri Kokkola, Juha Tonttila, and Sami Romakkaniemi

Data sets

Brief description of the simulations and the data used in Raatikainen et al., ACPD, 2021 T. Raatikainen https://doi.org/10.23728/fmi-b2share.752699d19f34489bbdaead7e7c591e27

Model code and software

UCLALES-SALSA/UCLALES-SALSA: Raatikainen et al. 2022 (MarineINPs) J. Tonttila, T. Raatikainen, H. Kokkola, and A. Ruuskanen https://doi.org/10.5281/zenodo.6361395

Short summary

Mineral dust or similar ice-nucleating particles (INPs) are needed to initiate cloud droplet freezing at temperatures common in shallow clouds. In this work we examine how INPs that are released from the sea surface impact marine clouds. Our high-resolution simulations show that turbulent updraughts carry these particles effectively up to the clouds, where they initiate cloud droplet freezing. Sea surface INP emissions become more important with decreasing background dust INP concentrations.