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)
,
Frederic 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 Department of Chemistry [Dunedin]
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 Department of Chemistry [Dunedin]
19 LATMOS - Laboratoire Atmosphères, Milieux, Observations Spatiales
Karine Sellegri
- Fonction : Auteur
- PersonId : 1233993
- ORCID : 0000-0002-5226-2403
- IdRef : 069669260
Maija Peltola
- Fonction : Auteur
- PersonId : 1162089
- ORCID : 0000-0002-7046-3057
- IdRef : 264188381
Manon Rocco
- Fonction : Auteur
- PersonId : 797516
- ORCID : 0000-0002-4575-0185
Evelyn Freney
- Fonction : Auteur
- PersonId : 741823
- IdHAL : efreney
- ORCID : 0000-0002-9363-9115
- IdRef : 23453477X
Clémence Rose
- Fonction : Auteur
- PersonId : 21762
- IdHAL : clemence-rose
- ORCID : 0000-0002-4524-221X
- IdRef : 185893791
Céline Planche
- Fonction : Auteur
- PersonId : 20148
- IdHAL : celine-planche
- ORCID : 0000-0001-8007-623X
- IdRef : 158550544
Guillaume Mioche
- Fonction : Auteur
- PersonId : 1331440
- ORCID : 0000-0002-1462-5277
Aurélie Colomb
- Fonction : Auteur
- PersonId : 1220117
- IdHAL : aucolomb
- ORCID : 0000-0002-2595-3911
- IdRef : 072299959
Jacques Pelon
- Fonction : Auteur
- PersonId : 177159
- IdHAL : jacques-pelon
- ORCID : 0000-0003-2348-2383
- IdRef : 070466890
Jean-Luc Baray
- Fonction : Auteur
- PersonId : 21774
- IdHAL : jean-luc-baray
- ORCID : 0000-0003-4711-6310
- IdRef : 146249143
Frederic Tridon
- Fonction : Auteur
- PersonId : 1345680
- IdHAL : frederic-tridon
- ORCID : 0000-0002-0436-283X
- IdRef : 166769479
Franck Donnadieu
- Fonction : Auteur
- PersonId : 21644
- IdHAL : franck-donnadieu
- ORCID : 0000-0001-8293-1340
Frédéric Szczap
- Fonction : Auteur
- PersonId : 21760
- IdHAL : frederic-szczap
- IdRef : 178075272
Résumé
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
Domaines
Météorologie| Origine | Fichiers produits par l'(les) auteur(s) |
|---|