Assessing the Dynamics of Organic Aerosols over the North Atlantic Ocean

Kasparian, Jérôme; Hassler, Christel; Ibelings, Bastiaan Willem; Berti, Nicolas; Bigorre, Sébastien; Djambazova, Violeta; Gascon-Diez, Elena; Giuliani, Gregory; Houlmann, Raphaël; Kiselev, Denis; de Laborie, Pierric; Le, Anh-Dao; Magouroux, Thibaud; Neri, Tristan; Palomino, Daniel; Pfändler, Stéfanie; Ray, Nicolas; Sousa, Gustavo; Staedler, Davide; Tettamanti, Federico; Wolf, Jean-Pierre; Beniston, Martin

doi:10.1038/srep45476

Scientific article

English

Assessing the Dynamics of Organic Aerosols over the North Atlantic Ocean

Published in

Scientific reports, vol. 7, 45476

Publication date

2017

Abstract

The influence of aerosols on climate is highly dependent on the particle size distribution, concentration, and composition. In particular, the latter influences their ability to act as cloud condensation nuclei, whereby they impact cloud coverage and precipitation. Here, we simultaneously measured the concentration of aerosols from sea spray over the North Atlantic on board the exhaust-free solar-powered vessel “PlanetSolar”, and the sea surface physico-chemical parameters. We identified organic-bearing particles based on individual particle fluorescence spectra. Organic-bearing aerosols display specific spatio-temporal distributions as compared to total aerosols. We propose an empirical parameterization of the organic-bearing particle concentration, with a dependence on water salinity and sea-surface temperature only. We also show that a very rich mixture of organic aerosols is emitted from the sea surface. Such data will certainly contribute to providing further insight into the influence of aerosols on cloud formation, and be used as input for the improved modeling of aerosols and their role in global climate processes.

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UNIGE research groups

Citation (ISO format)

KASPARIAN, Jérôme et al. Assessing the Dynamics of Organic Aerosols over the North Atlantic Ocean. In: Scientific reports, 2017, vol. 7, p. 45476. doi: 10.1038/srep45476

Article (Published version)

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PID : unige:93008
DOI : 10.1038/srep45476

Additional URL for this publication

http://www.nature.com/articles/srep45476

Journal ISSN

2045-2322

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31/03/2017 15:47:00

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31/03/2017 15:47:00

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24/10/2025 13:33:15

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24/10/2025 13:33:15

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24/10/2025 13:37:39

Assessing the Dynamics of Organic Aerosols over the North Atlantic Ocean

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