Articles | Volume 22, issue 19
Research article
06 Oct 2022
Research article |  | 06 Oct 2022

Ice fog observed at cirrus temperatures at Dome C, Antarctic Plateau

Étienne Vignon, Lea Raillard, Christophe Genthon, Massimo Del Guasta, Andrew J. Heymsfield, Jean-Baptiste Madeleine, and Alexis Berne

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Cited articles

Argentini, S., Pietroni, I., Mastrantonio, G., P., V. A., Dargaud, G., and Petenko, I.: Observations of near surface wind speed, temperature and radiative budget at Dome C, Antarctic Plateau during 2005, Antarct. Sci., 26, 104–112,, 2014. a
Baas, P., van de Wiel, B. J. H., van Meijgaard, E., Vignon, E., Genthon, C., van der Linden, S. J. A., and de Roode, S. R.: Transitions in the wintertime near-surface temperature inversion at Dome C, Antarctica, Q. J. Roy. Meteorol. Soc., 145, 930–946,, 2019. a
Baumgartner, M., Rolf, C., Grooß, J.-U., Schneider, J., Schorr, T., Möhler, O., Spichtinger, P., and Krämer, M.: New investigations on homogeneous ice nucleation: the effects of water activity and water saturation formulations, Atmos. Chem. Phys., 22, 65–91,, 2022. a, b, c, d
Belosi, F., Santachiara, G., and Prodi, F.: Ice-forming nuclei in Antarctica: New and past measurements, Atmos. Res., 145–146, 105–111,, 2014. a
Blanchet, J.-P. and Girard, E.: Water vapor-temperature feedback in the formation of continental Arctic air: its implication for climate, Sci. Total Environ., 160–161, 793–802,, 1995. a
Short summary
The near-surface atmosphere over the Antarctic Plateau is cold and pristine and resembles to a certain extent the high troposphere where cirrus clouds form. In this study, we use innovative humidity measurements at Concordia Station to study the formation of ice fogs at temperatures <−40°C. We provide observational evidence that ice fogs can form through the homogeneous freezing of solution aerosols, a common nucleation pathway for cirrus clouds.
Final-revised paper