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

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

doi:https://doi.org/10.5194/acp-22-12857-2022

Articles | Volume 22, issue 19

https://doi.org/10.5194/acp-22-12857-2022

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

https://doi.org/10.5194/acp-22-12857-2022

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

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

Data sets

Baseline Surface Radiation Network (BSRN): structure and data description (1992–2017) A. Driemel, J. Augustine, K. Behrens, S. Colle, C. Cox, E. Cuevas-Agulló, F. M. Denn, T. Duprat, M. Fukuda, H. Grobe, M. Haeffelin, G. Hodges, N. Hyett, O. Ijima, A. Kallis, W. Knap, V. Kustov, C. N. Long, D. Longenecker, A. Lupi, M. Maturilli, M. Mimouni, L. Ntsangwane, H. Ogihara, X. Olano, M. Olefs, M. Omori, L. Passamani, E. B. Pereira, H. Schmithüsen, S. Schumacher, R. Sieger, J. Tamlyn, R. Vogt, L. Vuilleumier, X. Xia, A. Ohmura, and G. König-Langlo https://doi.org/10.1594/PANGAEA.880000

Ten years of wind speed observation on a 45-m tower at Dome C, East Antarctic plateau C. Genthon, D. Veron, E. Vignon, D. Six, J. L. Dufresne, J.-B. Madeleine, E. Sultan, and F. Forget https://doi.org/10.1594/PANGAEA.932513

Water vapor observation in the lower atmospheric boundary layer at Dome C, East Antarctic plateau C. Genthon, D. Veron, E. Vignon, J.-B. Madeleine, and L. Piard https://doi.org/10.1594/PANGAEA.939425

Ten years of shielded ventilated atmospheric temperature observation on a 45-m tower at Dome C, East Antarctic plateau C. Genthon, D. Veron, E. Vignon, D. Six, J. L. Dufresne, J.-B. Madeleine, E. Sultan, and F. Forget https://doi.org/10.1594/PANGAEA.932512

INO LIDAR in Antarctica M. Del Guasta http://lidarmax. altervista.org/englidar/_AntarcticLIDAR.php

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.