Ocean cross-validated observations from R/Vs L'Atalante, Maria S. Merian, and Meteor and related platforms as part of the EUREC4A-OA/ATOMIC campaign

L'Hégaret, Pierre, Schütte, Florian, Speich, Sabrina, Reverdin, Gilles, Baranowski, Dariusz B., Czeschel, Rena, Fischer, Tim, Foltz, Gregory R., Heywood, Karen J. ORCID: https://orcid.org/0000-0001-9859-0026, Krahmann, Gerd, Laxenaire, Rémi, Le Bihan, Caroline, Le Bot, Philippe, Leizour, Stéphane, Rollo, Callum, Schlundt, Michael, Siddle, Elizabeth ORCID: https://orcid.org/0000-0002-2431-8107, Subirade, Corentin, Zhang, Dongxiao and Karstensen, Johannes (2023) Ocean cross-validated observations from R/Vs L'Atalante, Maria S. Merian, and Meteor and related platforms as part of the EUREC4A-OA/ATOMIC campaign. Earth System Science Data, 15 (4). pp. 1801-1830. ISSN 1866-3508

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The northwestern Tropical Atlantic Ocean is a turbulent region, filled with mesoscale eddies and regional currents. In this intense dynamical context, several water masses with thermohaline characteristics of different origins are advected, mixed, and stirred at the surface and at depth. The EUREC4A-OA/ATOMIC experiment that took place in January and February 2020 was dedicated to assessing the processes at play in this region, especially the interaction between the ocean and the atmosphere. For that reason, four oceanographic vessels and different autonomous platforms measured properties near the air–sea interface and acquired thousands of upper-ocean (up to 400–2000 m depth) profiles. However, each device had its own observing capability, varying from deep measurements acquired during vessel stations to shipboard underway near-surface observations and measurements from autonomous and uncrewed systems (such as Saildrones). These observations were undertaken with a specific sampling strategy guided by near-real-time satellite maps and adapted every half day, based on the process that was investigated. These processes were characterized by different spatiotemporal scales, from mesoscale eddies, with diameters exceeding 100 km, to submesoscale filaments of 1 km width. This article describes the datasets gathered from the different devices and how the data were calibrated and validated. In order to ensure an overall consistency, the platforms' datasets are cross-validated using a hierarchy of instruments defined by their own specificity and calibration procedures. This has enabled the quantification of the uncertainty in the measured parameters when different datasets are used together, e.g., https://doi.org/10.17882/92071 (L'Hégaret et al., 2020a).

Item Type: Article
Additional Information: Acknowledgements: We acknowledge the mesoscale calculation server CICLAD http://ciclad-web.ipsl.jussieu.fr (last access: 17 April 2023) that is dedicated to the Institut Pierre Simon Laplace modeling effort for technical and computational support. We also extend our thanks to the captain and crew of R/Vs L'Atalante, Maria S. Merian, Meteor, and Ronald H. Brown. Gregory Foltz has been supported by the CVP Program of NOAA’s Climate Program Office and by base funds to NOAA/AOML. Funding Information: This research has been supported by the people and government of Barbados; by the European Research Council (ERC) advanced grant EURECA (grant no. 694768) under the European Union's Horizon 2020 research and innovation program (H2020), with additional support from CNES (the French National Center for Space Studies) through the TOSCA SMOS-Ocean, TOEddies, and EURECA-OA proposals; by the French national program LEFE INSU, IFREMER, the French research fleet, the French research infrastructures of AERIS and ODATIS, IPSL, the EURECA-OA JPI Ocean and Climate program, the Chaire Chanel program of the Geosciences Department at ENS, and Météo-France; by the Max Planck Society and its supporting members; and by the German Research Foundation (DFG) and the German Federal Ministry of Education and Research (grant nos. GPF18-1-69 and GPF18-2-50). Dariusz B. Baranowski has been supported by Poland's National Science Centre (grant no. UMO-2018/30/M/ST10/00674).
Uncontrolled Keywords: earth and planetary sciences(all) ,/dk/atira/pure/subjectarea/asjc/1900
Faculty \ School: Faculty of Science > School of Environmental Sciences
University of East Anglia Research Groups/Centres > Theme - ClimateUEA
UEA Research Groups: Faculty of Science > Research Groups > Centre for Ocean and Atmospheric Sciences
Related URLs:
Depositing User: LivePure Connector
Date Deposited: 22 May 2023 08:30
Last Modified: 30 May 2023 11:30
URI: https://ueaeprints.uea.ac.uk/id/eprint/92112
DOI: 10.5194/essd-15-1801-2023

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