Articles | Volume 22, issue 11
Research article
02 Jun 2022
Research article |  | 02 Jun 2022

In situ observation of riming in mixed-phase clouds using the PHIPS probe

Fritz Waitz, Martin Schnaiter, Thomas Leisner, and Emma Järvinen

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Subject: Clouds and Precipitation | Research Activity: Field Measurements | Altitude Range: Troposphere | Science Focus: Physics (physical properties and processes)
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Cited articles

Abdelmonem, A., Järvinen, E., Duft, D., Hirst, E., Vogt, S., Leisner, T., and Schnaiter, M.: PHIPS–HALO: the airborne Particle Habit Imaging and Polar Scattering probe – Part 1: Design and operation, Atmos. Meas. Tech., 9, 3131–3144,, 2016. a
Ávila, E. E., Castellano, N. E., Saunders, C. P. R., Bürgesser, R. E., and Aguirre Varela, G. G.: Initial stages of the riming process on ice crystals, Geophys. Res. Lett., 36, L09808,, 2009. a, b, c
Baltensperger, U., Schwikowski, M., Jost, D., Nyeki, S., Gäggeler, H., and Poulida, O.: Scavenging of atmospheric constituents in mixed phase clouds at the high-alpine site jungfraujoch part I: Basic concept and aerosol scavenging by clouds, Atmos. Environ., 32, 3975–3983,, 1998. a
Blahak, U. and Seifert, A.: COSMO/CLM/ART Training Course, Langen, March 2015, (last access: 8 April 2022), 2015. a
Bruintjes, R. T., Heymsfield, A. J., and Krauss, T. W.: An Examination of Double-Plate Ice Crystals and the Initiation of Precipitation in Continental Cumulus Clouds, J. Atmos. Sci., 44, 1331–1350,<1331:AEODPI>2.0.CO;2, 1987. a
Short summary
Riming, i.e., the accretion of small droplets on the surface of ice particles via collision, is one of the major uncertainties in model prediction of mixed-phase clouds. We discuss the occurrence (up to 50% of particles) and aging of rimed ice particles and show correlations of the occurrence and the degree of riming with ambient meteorological parameters using data gathered by the Particle Habit Imaging and Polar Scattering (PHIPS) probe during three airborne in situ field campaigns.
Final-revised paper