Heavy snowfall event over the Swiss Alps: did wind shear impact secondary ice production?

Dedekind, Zane; Grazioli, Jacopo; Austin, Philip H.; Lohmann, Ulrike

doi:https://doi.org/10.5194/acp-23-2345-2023

Articles | Volume 23, issue 4

https://doi.org/10.5194/acp-23-2345-2023

© Author(s) 2023. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/acp-23-2345-2023

© Author(s) 2023. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 23, issue 4

Research article

|

20 Feb 2023

Research article |

| 20 Feb 2023

Heavy snowfall event over the Swiss Alps: did wind shear impact secondary ice production?

Zane Dedekind, Jacopo Grazioli, Philip H. Austin, and Ulrike Lohmann

Supplement

https://doi.org/10.5194/acp-23-2345-2023-supplement

Data sets

Dataset for Heavy snowfall event over the Swiss Alps: Did wind shear impact secondary ice production? (Version 1) Zane Dedekind, Jacopo Grazioli, Phil Austin, and Ulrike Lohmann https://doi.org/10.5281/zenodo.6609251

Model code and software

Software for Heavy snowfall event over the Swiss Alps: Did wind shear impact secondary ice production? (Version 1) Zane Dedekind, Jacopo Grazioli, Phil Austin, and Ulrike Lohmann https://doi.org/10.5281/zenodo.6612296

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Short summary

Simulations allowing ice particles to collide with one another producing more ice particles represented surface observations of ice particles accurately. An increase in ice particles formed through collisions was related to sharp changes in the wind direction and speed with height. Changes in wind speed and direction can therefore cause more enhanced collisions between ice particles and alter how fast and how much precipitation forms. Simulations were conducted with the atmospheric model COSMO.