Simulating the influence of primary biological aerosol particles on clouds by heterogeneous ice nucleation

Hummel, Matthias; Hoose, Corinna; Pummer, Bernhard; Schaupp, Caroline; Fröhlich-Nowoisky, Janine; Möhler, Ottmar

doi:https://doi.org/10.5194/acp-18-15437-2018

Articles | Volume 18, issue 20

https://doi.org/10.5194/acp-18-15437-2018

© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/acp-18-15437-2018

© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 18, issue 20

Research article

|

26 Oct 2018

Research article |

| 26 Oct 2018

Simulating the influence of primary biological aerosol particles on clouds by heterogeneous ice nucleation

Matthias Hummel, Corinna Hoose, Bernhard Pummer, Caroline Schaupp, Janine Fröhlich-Nowoisky, and Ottmar Möhler

Data sets

Simulating the influence of primary biological aerosol particles on clouds by heterogeneous ice nucleation M. Hummel and C. Hoose https://doi.org/10.5445/IR/1000086437

Short summary

How important for clouds is the ability of biological particles to glaciate droplets at little supercooling? In a case study, the regional atmospheric model COSMO–ART is used. Perturbed and control runs are compared. The number of ice particles that are nucleated by biological particles is highest at around −10 °C. No significant influence on the average state of the cloud ice phase was found. However, the number of ice crystals is slightly enhanced in the absence of other ice nucleators.