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  Sea2Cloud: from biogenic emission fluxes to cloud properties in the South West Pacific

Sellegri, K., Harvey, M., Peltola, M., Saint-Macary, A., Barthelmeß, T., Rocco, M., Moore, K. A., Cristi, A., Peyrin, F., Barr, N., Labonnote, L., Marriner, A., McGregor, J., Safi, K., Deppeler, S., Archer, S., Dunne, E., Harnwell, J., Delanoe, J., Freney, E., Rose, C., Bazantay, C., Planche, C., Saiz-Lopez, A., Quintanilla-López, J. E., Lebrón-Aguilar, R., Rinaldi, M., Banson, S., Joseph, R., Lupascu, A., Jourdan, O., Mioche, G., Colomb, A., Olivares, G., Querel, R., McDonald, A., Plank, G., Bukosa, B., Dillon, W., Pelon, J., Picard, D., Baray, J.-L., Tridon, F., Donnadieu, F., Szczap, F., Engel, A., DeMott, P. J., Law, C. S. (2023 online): Sea2Cloud: from biogenic emission fluxes to cloud properties in the South West Pacific. - Bulletin of the American Meteorological Society.

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Sellegri, Karine1, Author
Harvey, Mike1, Author
Peltola, Maija1, Author
Saint-Macary, Alexia1, Author
Barthelmeß, Theresa1, Author
Rocco, Manon1, Author
Moore, Kathryn A.1, Author
Cristi, Antonia1, Author
Peyrin, Frederic1, Author
Barr, Neill1, Author
Labonnote, Laurent1, Author
Marriner, Andrew1, Author
McGregor, John1, Author
Safi, Karl1, Author
Deppeler, Stacy1, Author
Archer, Stephen1, Author
Dunne, Erin1, Author
Harnwell, James1, Author
Delanoe, Julien1, Author
Freney, Evelyn1, Author
Rose, Clémence1, AuthorBazantay, Clément1, AuthorPlanche, Céline1, AuthorSaiz-Lopez, Alfonso1, AuthorQuintanilla-López, Jesús E.1, AuthorLebrón-Aguilar, Rosa1, AuthorRinaldi, Matteo1, AuthorBanson, Sandra1, AuthorJoseph, Romain1, AuthorLupascu, Aurelia2, Author              Jourdan, Olivier1, AuthorMioche, Guillaume1, AuthorColomb, Aurélie1, AuthorOlivares, Gus1, AuthorQuerel, Richard1, AuthorMcDonald, Adrian1, AuthorPlank, Graeme1, AuthorBukosa, Beata1, AuthorDillon, Wayne1, AuthorPelon, Jacques1, AuthorPicard, David1, AuthorBaray, Jean-Luc1, AuthorTridon, Frederic1, AuthorDonnadieu, Franck1, AuthorSzczap, Frédéric1, AuthorEngel, Anja1, AuthorDeMott, Paul J.1, AuthorLaw, Cliff S.1, Author more..
1External Organizations, ou_persistent22              
2IASS Institute for Advanced Sustainability Studies Potsdam, ou_96022              


Free keywords: -
 Abstract: The goal of the Sea2Cloud project is to study the interplay between surface ocean biogeochemical and physical properties, fluxes to the atmosphere and ultimately their impact on cloud formation under minimal direct anthropogenic influence. Here we present an interdisciplinary approach, combining atmospheric physics and chemistry with marine biogeochemistry, during a voyage between 41 and 47°S in March 2020. In parallel to ambient measurements of atmospheric composition and seawater biogeochemical properties, we describe semi-controlled experiments to characterize nascent sea spray properties and nucleation from gas-phase biogenic emissions. The experimental framework for studying the impact of the predicted evolution of ozone concentration in the Southern Hemisphere is also detailed. After describing the experimental strategy, we present the oceanic and meteorological context including provisional results on atmospheric thermodynamics, composition, and flux measurements. In situ measurements and flux studies were carried out on different biological communities by sampling surface seawater from subantarctic, subtropical and frontal water masses. Air-Sea-Tanks (ASIT) were used to quantify biogenic emissions of trace gases under realistic environmental conditions, with nucleation observed in association with biogenic seawater emissions. Sea spray continuously generated produced sea spray fluxes of 34% of organic matter by mass, of which 4% particles had fluorescent properties, and which size distribution ressembled the one found in clean sectors of the Southern Ocean. The goal of Sea2Cloud is to generate realistic parameterizations of emission flux dependences of trace gases and nucleation precursors, sea spray, cloud condensation nuclei and ice nuclei using seawater biogeochemistry, for implementation in regional atmospheric models.


Language(s): eng - English
 Dates: 2023-032023-02-24
 Publication Status: Published online
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Type: -
 Identifiers: DOI: 10.1175/BAMS-D-21-0063.1
 Degree: -



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Title: Bulletin of the American Meteorological Society
Source Genre: Journal, E14, SCI, Scopus
Publ. Info: Boston, Mass. : American Meteorological Soc.
Pages: - Volume / Issue: - Sequence Number: - Start / End Page: - Identifier: ISSN: 0003-0007
ISSN: 1520-0477
CoNE: https://publications.rifs-potsdam.de/cone/journals/resource/140113