Impacts of entrainment on secondary ice production in deep convective clouds

Portman, Bowen Z.; Connolly, Paul J.; Blyth, Alan M.; James, Rachel L.; Wu, Huihui

doi:10.5194/acp-26-8367-2026

Articles | Volume 26, issue 11

https://doi.org/10.5194/acp-26-8367-2026

© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/acp-26-8367-2026

© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 26, issue 11

Research article

|

16 Jun 2026

Research article |

| 16 Jun 2026

Impacts of entrainment on secondary ice production in deep convective clouds

Bowen Z. Portman, Paul J. Connolly, Alan M. Blyth, Rachel L. James, and Huihui Wu

Supplement

https://doi.org/10.5194/acp-26-8367-2026-supplement

Data sets

DCMEX: Collection of in-situ airborne observations, ground-based meteorological and aerosol measurements and cloud imagery for the Deep Convective Microphysics Experiment Facility for Airborne Atmospheric Measurements et al. https://doi.org/10.5285/B1211AD185E24B488D41DD98F957506C

Model code and software

Bin-microphysics model B. Z. Portman and P. J. Connolly https://doi.org/10.5281/zenodo.20646114

Download

Article (3948 KB)
Full-text XML

Short summary

Secondary ice production (SIP) is key to explaining the high ice particle concentrations observed in deep convective clouds. We investigate secondary ice production in summer convective clouds over New Mexico, and our results show that collisions between supercooled water droplets and more massive ice particles are the dominant SIP mechanism in these clouds. We also find that the entrainment of external aerosols leads to earlier ice enhancement under homogeneous mixing.