Articles | Volume 23, issue 4
https://doi.org/10.5194/acp-23-2345-2023
https://doi.org/10.5194/acp-23-2345-2023
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

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Cited articles

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Baldauf, M., Seifert, A., Förstner, J., Majewski, D., Raschendorfer, M., and Reinhardt, T.: Operational Convective-Scale Numerical Weather Prediction with the COSMO Model: Description and Sensitivities, Mon. Weather Rev., 139, 3887–3905, https://doi.org/10.1175/MWR-D-10-05013.1, 2011. a, b
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Bechini, R., Baldini, L., and Chandrasekar, V.: Polarimetric Radar Observations in the Ice Region of Precipitating Clouds at C-Band and X-Band Radar Frequencies, J. Appl. Meteorol. Climatol., 52, 1147–1169, https://doi.org/10.1175/JAMC-D-12-055.1, 2013. a, b, c
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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.
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