Using freezing spectra characteristics to identify ice-nucleating particle populations during the winter in the Alps

Creamean, Jessie M.; Mignani, Claudia; Bukowiecki, Nicolas; Conen, Franz

doi:https://doi.org/10.5194/acp-19-8123-2019

Articles | Volume 19, issue 12

https://doi.org/10.5194/acp-19-8123-2019

© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/acp-19-8123-2019

© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 19, issue 12

Research article

|

21 Jun 2019

Research article |

| 21 Jun 2019

Using freezing spectra characteristics to identify ice-nucleating particle populations during the winter in the Alps

Jessie M. Creamean, Claudia Mignani, Nicolas Bukowiecki, and Franz Conen

Data sets

HYSPLIT (HYbrid Single-Particle Lagrangian Integrated Trajectory) Model access via NOAA ARL READY website R. R. Draxler and G. Rolph https://www.ready.noaa.gov/HYSPLIT.php

Ice nucleating particle data from winter 2018 at Jungfraujoch J. M. Creamean https://doi.org/10.1594/PANGAEA.902793

Short summary

Aerosols that serve as seeds for cloud ice formation are important to study because they impact cloud radiative properties, lifetime, and precipitation formation. We present an investigation of ice-nucleating particles (INPs) from aerosol, rime, and snow samples collected in clear and cloudy conditions during winter storms in the Swiss Alsp. INPs were more abundant and effective when storms originated from the south. We use spectral characteristics to investigate warm versus cold mode INPs.