Intercomparison of ice nucleating particle instruments at the High Altitude Research Station Jungfraujoch

news_PINE_JFJKIT/ Larissa Lacher

Since July 2023, the Portable Ice Nucleation Chamber (PINE; Möhler et al., 2021) measures INP concentrations at the High Altitude Research Station Jungfraujoch in the Swiss Alps (3580 m a.s.l.). The station is part of the ACTRIS network, and will become a National Facility of the ACTRIS Topical Center for Cloud In Situ measurements.

 PINE is installed next to the automated Horizontal Ice Nucleation Chamber (HINC-auto; Brunner and Kanji, 2021), that is in continuous operation at Jungfraujoch. The INP concentrations measured with the two cloud chambers are compared over a time period of ~ 6 weeks, in order to investigate their comparability when sampling ambient air. In addition, validation experiments using well-known aerosol particles were conducted to test the thermodynamic conditions in PINE and HINC-auto.


Brunner, C. and Kanji, Z. A.(2021): Continuous online monitoring of icenucleating particles: development of the automated Horizontal Ice Nucleation Chamber (HINC-Auto), Atmos. Meas. Tech., 14, 269–293,

Möhler, O., Adams, M., Lacher, L., Vogel, F., Nadolny, J., Ullrich, R., Boffo, C., Pfeuffer, T., Hobl, A., Weiß, M., Vepuri, H. S. K., Hiranuma, N., and Murray, B. J. (2021): The Portable Ice Nucleation Experiment (PINE): a new online instrument for laboratory studies and automated long-term field observations of ice-nucleating particles, Atmos. Meas. Tech., 14, 1143-1166, 10.5194/amt-14-1143-2021.


Dr. Larissa Lacher