Soot PCF: pore condensation and freezing framework for soot aggregates

Marcolli, Claudia; Mahrt, Fabian; Kärcher, Bernd

doi:https://doi.org/10.5194/acp-21-7791-2021

Articles | Volume 21, issue 10

https://doi.org/10.5194/acp-21-7791-2021

© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/acp-21-7791-2021

© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 21, issue 10

Research article

|

21 May 2021

Research article |

| 21 May 2021

Soot PCF: pore condensation and freezing framework for soot aggregates

Claudia Marcolli, Fabian Mahrt, and Bernd Kärcher

Data sets

Ice nucleation abilities of soot particles determined with the Horizontal Ice Nucleation Chamber F. Mahrt, C. Marcolli, R. O. David, P. Grönquist, E. J. Barthazy Meier, U. Lohmann, and Z. A. Kanji https://doi.org/10.3929/ethz-b-000286409

The Impact of Cloud Processing on the Ice Nucleation Abilities of Soot Particles at Cirrus Temperatures F. Mahrt, K. Kilchhofer, C. Marcolli, P. Grönquist, R. O. David, M. Rösch, U. Lohmann, and Z. A. Kanji https://doi.org/10.3929/ethz-b-000340269

Short summary

Pores are aerosol particle features that trigger ice nucleation, as they take up water by capillary condensation below water saturation that freezes at low temperatures. The pore ice can then grow into macroscopic ice crystals making up cirrus clouds. Here, we investigate the pores in soot aggregates responsible for pore condensation and freezing (PCF). Moreover, we present a framework to parameterize soot PCF that is able to predict the ice nucleation activity based on soot properties.