Impact of cloud seeding on simulated hailstorms and its dependence on CAPE, wind shear, and tracking thresholds

Papaevangelou, Nikolaos; Villanueva, Diego; Lohmann, Ulrike

doi:10.5194/acp-26-9393-2026

Articles | Volume 26, issue 13

https://doi.org/10.5194/acp-26-9393-2026

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

https://doi.org/10.5194/acp-26-9393-2026

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

Articles | Volume 26, issue 13

Research article

|

03 Jul 2026

Research article |

| 03 Jul 2026

Impact of cloud seeding on simulated hailstorms and its dependence on CAPE, wind shear, and tracking thresholds

Nikolaos Papaevangelou, Diego Villanueva, and Ulrike Lohmann

Supplement

https://doi.org/10.5194/acp-26-9393-2026-supplement

Data sets

Impact of Cloud Seeding on Simulated Hailstorms and Its Dependence on CAPE, Wind Shear, and Tracking Thresholds Papaevangelou Nikolaos https://doi.org/10.5281/zenodo.17975220

Model code and software

Simulations of selective seeding of hailstorms — a summertime case study over Switzerland Papaevangelou Nikolaos https://doi.org/10.5281/zenodo.16495224

Download

Article (5207 KB)
Full-text XML

Short summary

In this study, we investigate the impact of silver iodide (AgI) perturbations on eight hailstorms over Switzerland and southern Germany using the Consortium for Small-scale Modeling (COSMO) model. Generally, the impact of AgI seeding on hail is highly case-dependent and sensitive to the choice of tracking thresholds. However, in most cases, the mean hail size increases after seeding, while the hail-affected area decreases.