BIOGEOCHEMICAL dataset collected during the TONGA cruise
| Date | 2022-09-05 | |||||||||||||||
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| Author(s) | Guieu Cécile 1, Bonnet Sophie2, Abadou Fatima2, Alliouane Samir1, Arnaud-Haond Sophie3, Arnone Veronica4, Baudoux Anne-Claire5, Baumas Chloe2, Beillard Lucie6, Benavides Mar2, Berman-Frank Ilana7, Bhairy Nagib2, Bigeard Estelle5, Boulart Cedric5, Bouruet-Aubertot Pascale8, Boyd Philip9, Bressac Matthieu1, Camps Mercedes2, Chaffron Samuel10, Chavagnac Valérie11, Chevaillier Servanne6, Collot Julien12, Cuypers Yannis8, de Liège Guillaume13, de Saint Léger Emmanuel14, de Vargas Colomban5, Desboeufs Karine6, Desgranges Marie-Maelle2, Destrigneville Christine11, Dimier Céline13, Diruit Wendy15, Dissard Delphine16, Doussin Jean-François6, Dufour Aurélie2, Dulaquais Gabriel17, Fernandez Jean-Michel18, Feron Anaïs6, Ferrieux Mathilde5, Filella Alba2, Forrer Heather19, Fourrier Pierre17, Gac Jean-Philippe5, Gachenot Martin5, Gaimoz Cécile6, Garczarek Laurence5, Gazeau Frédéric1, Gonzalez Aridane4, Gonzalez Santana David17, Gorgues Thomas20, Grima Nicolas20, Grisoni Jean-Michel13, Grosso Olivier2, Guigue Catherine2, Habasque Jeremie17, Heimbürger-Boavida Lars-Eric2, Jeandel Catherine21, Jeanthon Christian5, Journet Emilie6, Knapp Angela19, Lacan François21, Le Gall Florence5, Le Moal Pierre5, Le Moigne Frédéric2, Leblanc Karine2, Leblond Nathalie13, Lebourges-Dhaussy Anne17, Leconte Jade5, Lefèvre Dominique2, Lombard Fabien1, Lorrain Anne17, Lory Caroline2, Maes Christophe20, Mahieu Léo22, Marie Dominique5, Mazoyer Camille2, Menkes Christophe23, Michoud Vincent6, Montanes Maryline1, Not Fabrice5, Nunige Sandra2, Paparella Francesco24, Patriat Martin25, Pelletier Bernard26, Petrenko Anne2, Planquette Helene17, Point David11, Portlock Gemma22, Probert Ian5, Pulido-Villena Elvira2, Ratin Morgane5, Ratnarajah Lavenia22, Riso Ricardo17, Rizzo Andrea27, Salaun Pascal22, Sarthou Geraldine17, Schmechtig Catherine15, Sellegri Karine28, Simon Nathalie5, Tagliabue Alessandro22, Taillandier Vincent1, Tamburini Christian2, Tedetti Marc2, Thibon Fanny1, Tilliette Chloé1, Torres Rodriguez Natalia2, Triquet Sylvain6, Uitz Julia1, Van Wambeke France2, Vaulot Daniel5, Vigier Nathalie1, Vilain Marion1, Vorrath Maria Helena17, Weppe Lucas1, Whitby Hannah17 |
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| Affiliation(s) | 1 : Laboratoire d'Océanographie de Villefranche, LOV, CNRS, Sorbonne Université, Villefranche sur Mer, France 2 : Institut Méditerranéen d'Océanologie, M.I.O, CNRS, IRD, Aix-Marseille Université, Toulon Université, Marseille, France 3 : Ifremer, UMR Marbec, Sète, France 4 : QUIMA, IOCAG, Instituto de Oceanografía y Cambio Global, Las Palma de Gran Canaria, Spain 5 : AD2M Adaptation et diversité en Milieu marin UMR7144, CNRS, Sorbonne Université, Station Biologique de Roscoff, Roscoff, France 6 : Laboratoire Interuniversitaire des Systèmes Atmosphériques -LISA, CNRS, Université de Paris, UPEC, Paris, France 7 : Leon H. Charney School of Marine Sciences, Department of Marine Biology, University of Haifa, Israel 8 : Laboratoire d'Océanographie et du Climat, LOCEAN, Sorbonne Université, Paris, France 9 : IMAS University of Tasmania, Hobart, AUSTRALIA 10 : Laboratoire des Sciences du Numérique de Nantes (LS2N), CNRS, Université de Nantes, Nantes, France 11 : Laboratoire Géosciences Environnement Toulouse, GET, CNRS, UPS, IRD, Toulouse University, Toulouse, France 12 : Geological Survey of Nouvelle-Calédonie, DIMENC, Nouméa, New Caledonia 13 : Institut de la Mer de Villefranche, CNRS, Sorbonne Université, Villefranche sur Mer 14 : Division Technique de l'INSU - UPS855, Plouzané, France 15 : OSU Ecce Terra, CNRS, Paris, France 16 : IRD/UMR LOCEAN, IRD, Nouméa, New Caledonia 17 : Laboratoire des Sciences de l'Environnement Marin, LEMAR, CNRS, Univ Brest, IRD, Ifremer, Plouzané, France 18 : Analytical & Environmental laboratory (AEL/LEA), Nouméa, New Caledonia 19 : Earth, Ocean and Atmospheric Science Dept., Florida State University, Tallahassee, USA 20 : Laboratoire d'Oceanographie Physique et Spatiale, CNRS, Univ Brest, IRD, Ifremer, Plouzané, France 21 : Laboratoire d'Etude en Geophysique et Océanographie Spatiales LEGOS, CNRS, CNES, IRD, Université de Toulouse, Toulouse, France 22 : School of Environmental Sciences, University of Liverpool, Liverpool, UK 23 : ENTROPIE (IRD, Université de la Réunion, CNRS), Centre IRD de Nouméa, New Caledonia 24 : Division of Sciences and Mathematics, New York University Abu Dhabi, Abu Dhabi, United Arab Emirates 25 : Unité Géosciences Marines (GM), IFREMER, Plouzané, France 26 : UMR Géoazur (UNS, OCA,CNRS, IRD), Centre IRD de Nouméa, Nouméa, New Caledonia 27 : Istituto Nazionale di Geofisica e Vulcanologia (INGV), Sezione di Palermo, Palermo, Italy 28 : Laboratoire de Météorologie Physique, CNRS, Université Clermont Auvergne, Clermont-Ferrand |
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| DOI | 10.17882/88169 | |||||||||||||||
| Publisher | SEANOE | |||||||||||||||
| Abstract | The objective of the TONGA oceanographic expedition was to study the control of productivity and carbon sequestration by micronutrients of shallow hydrothermal origin in the Western Tropical South Pacific (WTSP) Ocean. The 37-day oceanographic survey took place on board the R/V L’Atalante in 2019 between Oct. 31 to Dec. 6 (Nouméa-Nouméa). Over a large area of the WTSP the team acquired numerous results on both the entire water column (up to the sediment) and the atmosphere. Specific task are represented on figure 1: (task 1) to characterize chemically and optically shallow hydrothermal fluids and to compare the source from below (shallow hydrothermal fluids) with the source from above (atmospheric deposition); (task 2) to quantify the dynamical dispersion of the fluids at small and regional scale; (task 3) to investigate the impact of the shallow hydrothermal sources on the biological activity and diversity, and the feedback to the atmosphere via the oceanic emissions of primary and secondary aerosols. (Task 4) to communicate about the campaign (see for example our Tweeter account (https://twitter.com/tongaproject) and the movie (26’) both in French (https://www.youtube.com/watch?v=e5kAd0i6Dck) and English (https://www.youtube.com/watch?v=UeABf-cVR-k). A long west to east (up to the blue waters of the gyre) transect allowed to characterize the different biogeochemical provinces crossed and a focus in the region of the Lau Basin allowed to investigate the impact of shallow hydrothermal sources. A series of short and long stations allowed to fully characterize the stocks and the fluxes in the different provinces. Short-term (up to 10 days) processes studies have been conducted (drifting moorings and minicosms experiments). Part of these results will feed into important modeling work. A fixed mooring line launched at the end of the campaign and recovered in Nov. 2020 as well as the 7 ARGO floats and 20 drifting buoys that were dropped during the campaign provide a broader temporal context of the acquisitions done during the campaign. An important focus of the campaign was the trace metal characterization of the entire water column. For this, TONGA has been labeled by the international program GEOTRACES (https://www.geotraces.org/). The impact on biological communities of fluids is supported by the international IMBER program (https://imber.info/). The TONGA project is also part of the LEFE program (funding by LEFE-CYBER and LEFE-GMMC), the ANR (Appel à projets génériques) and the Fondation A-MIDeX of the Aix-Marseille Université. Scheme of the different tasks of the TONGA project and cruise
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| Licence |  |
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| Utilisation | Authors welcomes users to ask questions and report problems to Catherine Schmechtig (schmechtig@obs-vlfr.fr) | |||||||||||||||
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