Sea2Cloud: From Biogenic Emission Fluxes to Cloud Properties in the Southwest Pacific
Karine Sellegri
(1)
,
Mike Harvey
(2)
,
Maija Peltola
(1)
,
Alexia Saint-Macary
(2, 3)
,
Theresa Barthelmeß
(4)
,
Manon Rocco
(1)
,
Kathryn A. Moore
(5)
,
Antonia Cristi
(2, 3)
,
Frederic Peyrin
(6)
,
Neill Barr
(2)
,
Laurent Labonnote
(7)
,
Andrew Marriner
(2)
,
John Mcgregor
(2)
,
Karl Safi
(2, 8)
,
Stacy Deppeler
(2)
,
Stephen Archer
(9)
,
Erin Dunne
(10)
,
James Harnwell
(10)
,
Julien Delanoë
(11)
,
Evelyn Freney
(1)
,
Clémence Rose
(1)
,
Clément Bazantay
(1)
,
Céline Planche
(1)
,
Alfonso Saiz-Lopez
(12)
,
Jesús E Quintanilla-López
(12)
,
Rosa Lebrón-Aguilar
(12)
,
Matteo Rinaldi
(13)
,
Sandra Banson
(1)
,
Romain Joseph
(1)
,
Aurelia Lupascu
(14)
,
Olivier Jourdan
(1)
,
Guillaume Mioche
(1)
,
Aurélie Colomb
(1)
,
Gus Olivares
(15)
,
Richard Querel
(16)
,
Adrian Mcdonald
(17)
,
Graeme Plank
(17)
,
Beata Bukosa
(2)
,
Wayne Dillon
(18)
,
Jacques Pelon
(19)
,
Jean-Luc Baray
(1)
,
Frédéric Tridon
(1)
,
Franck Donnadieu
(6)
,
Frédéric Szczap
(1)
,
Anja Engel
(4)
,
Paul J Demott
(5)
,
Cliff S. Law
(2)
1
LaMP -
Laboratoire de Météorologie Physique
2 NIWA - National Institute of Water and Atmospheric Research [Wellington]
3 Department of Marine Sciences [Dunedin]
4 GEOMAR - Helmholtz Centre for Ocean Research [Kiel]
5 Department of Atmospheric Science [Fort Collins]
6 OPGC - Observatoire de Physique du Globe de Clermont-Ferrand
7 LOA - Laboratoire d’Optique Atmosphérique - UMR 8518
8 NIWA - National Institute of Water and Atmosphere [Hamilton]
9 University of Auckland [Auckland]
10 CSIRO Marine and Atmospheric Research [Aspendale]
11 SPACE - LATMOS
12 IQFR - Instituto de Química Física Rocasolano
13 ISAC - Istituto di Scienze dell'Atmosfera e del Clima [Bologna]
14 IASS - Institute for Advanced Sustainability Studies [Potsdam]
15 NIWA - National Institute of Water and Atmospheric Research [Auckland]
16 NIWA - National Institute of Water and Atmospheric Research [Lauder]
17 University of Canterbury [Christchurch]
18 University of Otago [Dunedin, Nouvelle-Zélande]
19 LATMOS - Laboratoire Atmosphères, Milieux, Observations Spatiales
2 NIWA - National Institute of Water and Atmospheric Research [Wellington]
3 Department of Marine Sciences [Dunedin]
4 GEOMAR - Helmholtz Centre for Ocean Research [Kiel]
5 Department of Atmospheric Science [Fort Collins]
6 OPGC - Observatoire de Physique du Globe de Clermont-Ferrand
7 LOA - Laboratoire d’Optique Atmosphérique - UMR 8518
8 NIWA - National Institute of Water and Atmosphere [Hamilton]
9 University of Auckland [Auckland]
10 CSIRO Marine and Atmospheric Research [Aspendale]
11 SPACE - LATMOS
12 IQFR - Instituto de Química Física Rocasolano
13 ISAC - Istituto di Scienze dell'Atmosfera e del Clima [Bologna]
14 IASS - Institute for Advanced Sustainability Studies [Potsdam]
15 NIWA - National Institute of Water and Atmospheric Research [Auckland]
16 NIWA - National Institute of Water and Atmospheric Research [Lauder]
17 University of Canterbury [Christchurch]
18 University of Otago [Dunedin, Nouvelle-Zélande]
19 LATMOS - Laboratoire Atmosphères, Milieux, Observations Spatiales
Karine Sellegri
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- ORCID : 0000-0002-5226-2403
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Maija Peltola
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Manon Rocco
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- ORCID : 0000-0002-4575-0185
Evelyn Freney
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Clémence Rose
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Clément Bazantay
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- ORCID : 0000-0002-9951-5535
Céline Planche
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Olivier Jourdan
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Guillaume Mioche
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Aurélie Colomb
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Jacques Pelon
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Jean-Luc Baray
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Frédéric Tridon
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- IdHAL : frederic-tridon
- ORCID : 0000-0002-0436-283X
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Frédéric Szczap
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- IdHAL : frederic-szczap
- IdRef : 178075272
Résumé
The goal of the Sea2Cloud project is to study the interplay between surface oceanbiogeochemical and physical properties, fluxes to the atmosphere and ultimately their impacton cloud formation under minimal direct anthropogenic influence. Here we present aninterdisciplinary approach, combining atmospheric physics and chemistry with marinebiogeochemistry, during a voyage between 41 and 47°S in March 2020. In parallel to ambientmeasurements of atmospheric composition and seawater biogeochemical properties, wedescribe semi-controlled experiments to characterize nascent sea spray properties andnucleation from gas-phase biogenic emissions. The experimental framework for studying theimpact of the predicted evolution of ozone concentration in the Southern Hemisphere is alsodetailed. After describing the experimental strategy, we present the oceanic and meteorologicalcontext including provisional results on atmospheric thermodynamics, composition, and fluxmeasurements. In situ measurements and flux studies were carried out on different biologicalcommunities by sampling surface seawater from subantarctic, subtropical and frontal watermasses. Air-Sea-Tanks (ASIT) were used to quantify biogenic emissions of trace gases underrealistic environmental conditions, with nucleation observed in association with biogenicseawater emissions. Sea spray continuously generated produced sea spray fluxes of 34% oforganic matter by mass, of which 4% particles had fluorescent properties, and which sizedistribution ressembled the one found in clean sectors of the Southern Ocean. The goal ofSea2Cloud is to generate realistic parameterizations of emission flux dependences of tracegases and nucleation precursors, sea spray, cloud condensation nuclei and ice nuclei usingseawater biogeochemistry, for implementation in regional atmospheric models
Domaines
Météorologie| Origine | Fichiers éditeurs autorisés sur une archive ouverte |
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