Assessing the Dynamics of Organic Aerosols over the North Atlantic Ocean

Article Article scientifique Article Assessing the Dynamics of Organic Aerosols over the North Atlantic Ocean eng 2017 author Kasparian Jérôme 0000-0003-2398-3882 662563 author Hassler Christel 60416 author Ibelings Bastiaan Willem 781963 author Berti Nicolas 786174 author Bigorre Sébastien author Djambazova Violeta 685236 author Gascon-Diez Elena author Giuliani Gregory 0000-0002-1825-8865 94488 author Houlmann Raphaël 718710 author Kiselev Denis 593383 author de Laborie Pierric author Le Anh-Dao author Magouroux Thibaud 736395 author Neri Tristan 653005 author Palomino Daniel 507106 author Pfändler Stéfanie author Ray Nicolas 0000-0002-4696-5313 126189 author Sousa Gustavo author Staedler Davide 827614 author Tettamanti Federico author Wolf Jean-Pierre 0000-0003-3729-958X 631266 author Beniston Martin 644316 45476 10.1038/srep45476 2045-2322 http://www.nature.com/articles/srep45476 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. Dewey 333.7-333.9 Dewey 550 18 Institut des sciences de l'environnement 0DB 41 Département F.-A. Forel des sciences de l'environnement et de l'eau 153 false 673 Envirospace Lab 859 Global Resource Information Database (GRID) 942 ISE Biodiversité 943 ISE Climat 944 ISE Eau 941 ISE Pôle Informatique environnementale 938 ISE Pôle Sciences 758 Marine and Lake Biogeochemistry 757 Microbial Ecology 1057 TIGERS 970b71ee-b344-4440-bc52-c9af263975d0 Living Earth Lab Scientific reports 7 2d9c3369-dd4a-4d92-ae57-c1d6552e7cdf Article (Published version) Public srep45476.pdf 1306067 application/pdf 191a9ba7-b804-4fc0-9a48-7a3942b8dd61 Supplemental data Public srep45476-s1.pdf 9367119 application/pdf openAccess Centres et instituts / Institut des sciences de l'environnement Faculté des sciences / Section des sciences de la Terre et de l'Environnement / Département F.-A. Forel des sciences de l'environnement et de l'eau

Title	Published in	Access level	OA Policy	Year	Views	Downloads

Assessing the Dynamics of Organic Aerosols over the North Atlantic Ocean	Scientific reports			2017	1,092	385

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Djambazova, Violeta