The diurnal and seasonal variability of ice-nucleating particles at the High Altitude Station Jungfraujoch (3580&thinsp;m&thinsp;a.s.l.), Switzerland

Brunner, Cyril; Brem, Benjamin T.; Collaud Coen, Martine; Conen, Franz; Steinbacher, Martin; Gysel-Beer, Martin; Kanji, Zamin A.

doi:https://doi.org/10.5194/acp-22-7557-2022

Articles | Volume 22, issue 11

https://doi.org/10.5194/acp-22-7557-2022

© Author(s) 2022. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/acp-22-7557-2022

© Author(s) 2022. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 22, issue 11

Research article

|

10 Jun 2022

Research article |

| 10 Jun 2022

The diurnal and seasonal variability of ice-nucleating particles at the High Altitude Station Jungfraujoch (3580 m a.s.l.), Switzerland

Cyril Brunner, Benjamin T. Brem, Martine Collaud Coen, Franz Conen, Martin Steinbacher, Martin Gysel-Beer, and Zamin A. Kanji

Data sets

The diurnal and seasonal variability of ice nucleating particles at the High Altitude Station Jungfraujoch (3580 m a.s.l.), Switzerland Cyril Brunner, Benjamin T. Brem, Martine Collaud Coen, Franz Conen, Martin Steinbacher, Martin Gysel-Beer, and Zamin A. Kanji https://doi.org/10.3929/ethz-b-000548529

Short summary

Microscopic particles called ice-nucleating particles (INPs) are essential for ice crystals to form in clouds. INPs are a tiny proportion of atmospheric aerosol, and their abundance is poorly constrained. We study how the concentration of INPs changes diurnally and seasonally at a mountaintop station in central Europe. Unsurprisingly, a diurnal cycle is only found when considering air masses that have had lower-altitude ground contact. The highest INP concentrations occur in spring.