The impact of secondary ice production on Arctic stratocumulus

Sotiropoulou, Georgia; Sullivan, Sylvia; Savre, Julien; Lloyd, Gary; Lachlan-Cope, Thomas; Ekman, Annica M. L.; Nenes, Athanasios

doi:https://doi.org/10.5194/acp-20-1301-2020

Articles | Volume 20, issue 3

https://doi.org/10.5194/acp-20-1301-2020

© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/acp-20-1301-2020

© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 20, issue 3

Research article

|

04 Feb 2020

Research article |

| 04 Feb 2020

The impact of secondary ice production on Arctic stratocumulus

Georgia Sotiropoulou, Sylvia Sullivan, Julien Savre, Gary Lloyd, Thomas Lachlan-Cope, Annica M. L. Ekman, and Athanasios Nenes

Supplement

https://doi.org/10.5194/acp-20-1301-2020-supplement

Data sets

Aerosol-Cloud Coupling And Climate Interactions in the Arctic (ACCACIA) Measurement Campaign British Antarctic Survey http://catalogue.ceda.ac.uk/uuid/c59f184de7a408212ee926a9ee6bf66e

Data from the ACCACIA - Aerosol-Cloud Coupling And Climate Interactions in the Arctic project British Antarctic Survey https://data.bas.ac.uk/metadata.php?id=GB/NERC/BAS/PDC/00821

Model code and software

LPM code S. C. Sullivan https://github.com/scs2229/SIM

Download

Article (2184 KB)
Full-text XML

Short summary

Arctic clouds constitute a large source of uncertainty in predictions of future climate. Observations indicate that the number concentration of cloud ice crystals exceeds the concentration of aerosols that can act as ice-nucleating particles (INPs). We show that ice multiplication due to mechanical break-up upon collisions between the few primary ice crystals (formed from INPs) can explain the discrepancy. Including a description of the process in climate models can improve cloud representation.