Atmos. Chem. Phys. Discuss., 13, 22795-22846, 2013
www.atmos-chem-phys-discuss.net/13/22795/2013/
doi:10.5194/acpd-13-22795-2013
© Author(s) 2013. This work is distributed
under the Creative Commons Attribution 3.0 License.
Review Status
This discussion paper has been under review for the journal Atmospheric Chemistry and Physics (ACP). Please refer to the corresponding final paper in ACP.
Classification of clouds sampled at the puy de Dôme (France) from 10 yr monitoring: mean features of their physico-chemical properties
L. Deguillaume1,2, T. Charbouillot1,2,3,4, M. Joly1,2,3,4, M. Vaïtilingom1,2,3,4, M. Parazols1,2,3,4, A. Marinoni1,2,*, P. Amato3,4, A.-M. Delort3,4, V. Vinatier3,4, A. Flossmann1,2, N. Chaumerliac1,2, J. M. Pichon1,2, S. Houdier5,6, P. Laj1,2,**, K. Sellegri1,2, A. Colomb1,2, M. Brigante3,4, and G. Mailhot3,4
1Clermont Université, Université Blaise Pascal, OPGC, Laboratoire de Météorologie Physique, BP 10448, 63000 Clermont-Ferrand, France
2CNRS, UMR6016, LaMP/OPGC, BP80026, 63177 Aubière, France
3Clermont Université, Université Blaise Pascal, Institut de Chimie de Clermont-Ferrand, BP 10448, 63000 Clermont-Ferrand, France
4CNRS, UMR 6296, ICCF, BP 80026, 63177 Aubière, France
5Université Joseph Fourier-Grenoble 1, Laboratoire de Glaciologie et Géophysique de l'Environnement, 38041 Grenoble, France
6CNRS, UMR 5183, 38041 Grenoble, France
*now at: the Institute for Atmospheric Science and Climate (ISAC), CNR, Bologna, Italy
**now at: Laboratoire de Glaciologie et Géophysique de l'Environnement (LGGE), CNRS/University of Grenoble, Grenoble, France

Abstract. Long-term monitoring of the chemical composition of clouds (73 cloud events representing 199 individual samples) sampled at the puy de Dôme (pdD) station (France) was performed between 2001 and 2011. Physico-chemical parameters, as well as the concentrations of the major organic and inorganic constituents, were measured and analyzed by multi-component statistical analysis. Along with the corresponding back-trajectory plots, this allowed distinguishing four different categories of air masses reaching the summit of the pdD: polluted, continental, marine and highly marine. This statistical tool leads to the determination of criteria (concentration of inorganic compounds, pH) that differentiate each categories of air masses. Highly marine clouds exhibited high concentrations of Na+ and Cl; the marine category presented lower concentration of ions but more elevated pH. Finally, the two remaining clusters were classified as "continental" and "polluted" with increasing concentrations of NH4+, NO3, SO42−. This unique dataset of cloud chemical composition is then discussed as a function of this classification; this will allow the creation of "standard chemical scenarios" that can serve for modeling purposes on multiphase cloud chemistry.

Citation: Deguillaume, L., Charbouillot, T., Joly, M., Vaïtilingom, M., Parazols, M., Marinoni, A., Amato, P., Delort, A.-M., Vinatier, V., Flossmann, A., Chaumerliac, N., Pichon, J. M., Houdier, S., Laj, P., Sellegri, K., Colomb, A., Brigante, M., and Mailhot, G.: Classification of clouds sampled at the puy de Dôme (France) from 10 yr monitoring: mean features of their physico-chemical properties, Atmos. Chem. Phys. Discuss., 13, 22795-22846, doi:10.5194/acpd-13-22795-2013, 2013.
 
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