EUREC4A_OA

Name: EUREC4A_OA
Start: 2020-01-19
End: 2020-02-19
Location: North Atlantic Ocean

Type	Oceanographic cruise
Ship	L'Atalante
Ship owner	Ifremer
Dates	19/01/2020 - 19/02/2020
Chief scientist(s)	SPEICH Sabrina
	LABORATOIRE DE MÉTÉOROLOGIE DYNAMIQUE - UMR 8539 24, rue L'homond 75231 PARIS CEDEX 05 01 44 32 22 21 lmddir@lmd.polytechnique.fr http://www.lmd.jussieu.fr/
DOI	10.17600/18000670
Objective	Ocean mesoscale eddies create specific air-sea interaction patterns that can have an integral effect on the large scale atmosphere and ocean dynamics. Recent advances in the state of the art of these processes has been predominately obtained from modeling efforts, but only very few observational studies exist, and there are all located in the extra-tropics. Adding a dedicated ocean mesoscale eddy air-sea interaction experiment to the EUREC⁴A campaign will enhance the objectives and success of the whole program as it sets a local, oceanic constrain to the atmospheric evolution (as been outlined in the overall EUREC⁴A design; Bony et al. 2017). Temporal variability over a fixed mesoscale (500 km x500 km) study area allows for sampling varying atmospheric states, on the time-scales of the EUREC⁴A field study. The oceanographic component that add on EUREC⁴A consists of four ships sampling the mesoscale ocean and air-sea exchanges at four different edges of the airborne field experiment. This will enable the extended spatial sampling required to characterize ocean variability and gather enough air-sea observations at different locations to assess with accuracy the involved processes and impacts. The western tropical Atlantic is an ideal laboratory for the proposed study. It hosts rich ocean mesoscale variability under an atmosphere characterized by a rather steady trade wind regime. In this region, eddies have a diameter of 200 to 300 km and lifetimes of several months up to years. In particular south of Barbados, very energetic and long-lived anticyclonic North Brazil Current rings are commonly found. These eddies are key for the northward transport of properties from the South to the North Atlantic within the Atlantic Meridional Ocean Circulation. Moreover, preliminary studies based on satellite observations have suggested that they play a crucial role in air-sea interactions and on the atmosphere. This region and eddies are the focus of EUREC4A-OA, the French oceanographic component of the larger EUREC⁴A field experiments.

Sea/Ocean

North Atlantic Ocean

(Northwest Tropical Atlantic Ocean)

Ports

Port of departure : Pointe-à-Pitre (Guadeloupe)

Port of return : Pointe-à-Pitre (Guadeloupe)

Limits

North	South	West	East
15.0	5.0	-65.0	-50.0

Project

LEFE

Scientific Authority

LABORATOIRE DE MÉTÉOROLOGIE DYNAMIQUE - UMR 8539

24, rue L'homond

75231 PARIS CEDEX 05

01 44 32 22 21

lmddir@lmd.polytechnique.fr

http://www.lmd.jussieu.fr/

Participating bodie(s)

LMD, LOCEAN, LOPS, MIO, OSU Pytheas, IPSL, CNRS, Ifremer, ENS, CNES, Genavi

Discipline(s)

PHYSICAL OCEANOGRAPHY
ATMOSPHERE
CHEMICAL OCEANOGRAPHY
METEOROLOGY

Code	Label	Quantity	PI
B08	Phytoplankton Measured at CTD stations as Fluorescence, PAR and SPAR	64 profiles	SPEICH Sabrina
D05	Surface drifters/drifting buoys We have deployed 5 DO Argo floats, 10 NOAA special SVP and 6 French drifters. Four kinds of Drifters were provided to the R/V Atalante for the EUREC4A/ATOMIC project. - 5 SVP-BRST drifters from Eumetsat grant TRUSTED to MétéoFrance/CLS. - 10 SVP-BSW drifters from ATOMIC grant to Gregory Foltz (NOAA/AOML). - 2 SVP-BSC drifters from MétéoFrance/LOCEAN with CNES SMOS support. - 2 SURPACT floats manufactured by SMRU (Univ St-Andrew) and LOCEAN with CNES SMOS support.	21 deployments	SPEICH Sabrina
D71	Current profiler (eg ADCP) We have sampled the subsurface currents down to 1000 m of depth with the two Atalante's SADCPs (OS38 and OS150). In addition we have sampled the subsurface current at CTD stations with the two LADCPs mounted on the CTD-Rosette.	28 days	SPEICH Sabrina
D90	Other physical oceanographic meas. We have also collected underway CTD (uCTD), vertical microstructure profiles (VMP), Moving Vessel Profiles (MVP) and from an ocean glider.	3000 profiles	SPEICH Sabrina
G27	Gravity measurements	-	SPEICH Sabrina
G28	Magnetic measurements	-	SPEICH Sabrina
G73	Single-beam echosounding	-	SPEICH Sabrina
G74	Multi-beam echosounding	-	SPEICH Sabrina
H09	Water bottle stations We have collected water samples from the CTD-rosette bottles.	834 samples	SPEICH Sabrina
H10	CTD stations We have undertaken standard CTD-rosette stations.	64 stations	SPEICH Sabrina
H11	Subsurface meas. underway (T,S) We have undertaken subsurface observations of T and S with the Moving Vessel Profiler in the upper 150-200 m and this for a total of 1915 profiles.	1915 profiles	SPEICH Sabrina
H13	Bathythermograph We have deployed 50 T7 XBTs and 7 XCTD.	57 profiles	SPEICH Sabrina
H21	Oxygen We have measured subsurface Dissolved Oxygen with the CTD-Rosette and the ocean glider.	898 profiles	SPEICH Sabrina
H22	Phosphate We have collected 834 samples of waters from the CTD-Rosette bottles taht will be analyzed to provide Phosphates concentrations.	834 samples	SPEICH Sabrina
H24	Nitrate We have collected 834 samples of waters from the CTD-Rosette bottles taht will be analyzed to provide Nitrates concentrations.	834 samples	SPEICH Sabrina
H26	Silicate We have collected 834 samples of waters from the CTD-Rosette bottles taht will be analyzed to provide Silicates concentrations.	834 samples	SPEICH Sabrina
H32	Isotopes We have collected atmospheric Water Isotopes underway analyzed via a PICARRO positioned on top of the ship bridge.	28 days	SPEICH Sabrina
H71	Surface measurements underway (T,S) We have been undertaking underway measurements of T and S with the Atalante TSG. We have been collecting daily samples of water from the TSG system in order to calibrate the salinity.	28 days	SPEICH Sabrina
H74	Carbon dioxide We have been collecting atmosphere and ocean surface CO2 underway with the LOCEAN CO2 underway system.	28 days	SPEICH Sabrina
M01	Upper air observations We have been launching atmospheric radiosondes.	168 profiles	SPEICH Sabrina
M02	Incident radiation The DT-INSU atmospheric mast has been mounted to collect continuously measures of the incident radiation.	28 days	SPEICH Sabrina
M05	Occasional standard measurements 3 atmospheric remote sensing instruments were installed onboard the Atalante and successfully operated for the entire period of EUREC4A field campaign: A ceilometer of the Max-Planck Institute for Chemistry in Mainz, a cloud-camera system of the Max-Planck Institute for Meteorology in Hamburg and a MICROTOPS sunphotometer, which was provided by NASA's Maritime Aerosol Network (MAN) group. Together with regular radiosonde launches and in-situ sensors of black carbon and particle concentration.	28 days	SPEICH Sabrina
M06	Routine standard measurements As part of the EUREC4A-OA project, the DT-INSU CNRS Flux Mast was used to measure some environmental parameters at the air-sea interface. The flux mast is dedicated to measure environmental parameters at the interface, namely: air pressure, air temperature, humidity, air refaction indicia, CO2, H2O, three components of the wind, solar and ocean radiation fluxes, Latent and sensible heat fluxes, momentum fluxes, friction velocity, aerodynamic roughness height, Monin Obukhov length.	28 days	SPEICH Sabrina
M71	Atmospheric chemistry As part of the EUREC4A-OA project, 1 Picarro spectrometers was used for continuous atmospheric isotopic water vapor measurements and mixing ratios. Various instruments have been installed on the R/V Atalante to measure aerosol concentration and solar radiation. Some of them have been put on the atmospheric mast directly and some others have been installed in the Aerosol room (deck C of the vessel) and have been linked to the atmospheric mast with a sampling line.	28 days	SPEICH Sabrina
M90	Other meteorological measurements We have deployed 4 times two special air-sea exchanges dedicated platforms: OCARINA and PICCOLO. OCARINA is dedicated to measure environmental parameters at the interface, namely air pressure, air temperature, humidity, three components of the wind, solar and ocean radiation fluxes, water waves, water temperature, salinity, vertical profile of water current (u,v,w). PICCOLO is a prototype instrument we wanted to test during the Eurec4a-OA campaign. The goal was to estimate the wind sheer.	4 deployments	SPEICH Sabrina

Positionning system

Geodetic system : WORLD GEODETIC SYSTEM 1984 = WGS84

Positioning system : GPS différentiel

Joint document(s)

ADCP DATA OF THE ATALANTE, YEAR 2020

Published data

Metzl Nicolas, Fin Jonathan, Lo Monaco Claire, Mignon Claude, Alliouane Samir, Bombled Bruno, Boutin Jacqueline, Bozec Yann, Comeau Steeve, Conan Pascal, Coppola Laurent, Cuet Pascale, Ferreira Eva, Gattuso Jean-Pierre, Gazeau Frédéric, Goyet Catherine, Grossteffan Emilie, Lansard Bruno, Lefèvre Dominique, Lefèvre Nathalie, Leseurre Coraline, Lombard Fabien, Petton Sébastien, Pujo-Pay Mireille, Rabouille Christophe, Reverdin Gilles, Ridame Céline, Rimmelin-Maury Peggy, Ternon Jean-François, Touratier Franck, Tribollet Aline, Wagener Thibaut, Wimart-Rousseau Cathy (2024). An updated synthesis of ocean total alkalinity and dissolved inorganic carbon measurements from 1993 to 2023: the SNAPO-CO2-v2 dataset. https://doi.org/10.17882/102337

Metzl Nicolas, Fin Jonathan, Lo Monaco Claire, Mignon Claude, Alliouane Samir, Antoine David, Bourdin Guillaume, Boutin Jacqueline, Bozec Yann, Conan Pascal, Coppola Laurent, Douville Eric, Durrieu De Madron Xavier, Gattuso Jean-Pierre, Gazeau Frédéric, Golbol Melek, Lansard Bruno, Lefèvre Dominique, Lefèvre Nathalie, Lombard Fabien, Louanchi Férial, Merlivat Liliane, Olivier Léa, Petrenko Anne, Petton Sébastien, Pujo-Pay Mireille, Rabouille Christophe, Reverdin Gilles, Ridame Céline, Tribollet Aline, Vellucci Vincenzo, Wagener Thibaut, Wimart-Rousseau Cathy (2023). A synthesis of ocean total alkalinity and dissolved inorganic carbon measurements from 1993 to 2022: the SNAPO-CO2-v1 dataset. https://doi.org/10.17882/95414

Data managed by SISMER

Bibliography

Publications

Barabinot Yan, Speich Sabrina, Carton Xavier. Insights Into Mesoscale Eddy Dynamics: A Three-Dimensional Perspective on Potential Density Anomalies. ESS Open Archive IN PRESS. Publisher's official version : https://doi.org/10.22541/essoar.170158288.87102456/v2 , Open Access version : https://archimer.ifremer.fr/doc/00942/105360/

Gauvrit Edouard, Bouin Marie-Noëlle, Delouis Jean Marc, Boulanger F. (2025). Advances on the Links Between Turbulent and Submeso- to Mesoscales During EUREC4A. Earth and Space Science, 12(2), e2024EA003865 (24p.). Publisher's official version : https://doi.org/10.1029/2024EA003865 , Open Access version : https://archimer.ifremer.fr/doc/00939/105073/

Barabinot Yan, Speich Sabrina, Carton Xavier, L'Hégaret Pierre, Subirade Corentin, Laxenaire Rémi, Karstensen Johannes. Mesoscale Dynamics and Transport in the North Brazil Current as revealed by the EUREC4A-OA experiment. EGUsphere [preprint] IN PRESS. Publisher's official version : https://doi.org/10.5194/egusphere-2025-586 , Open Access version : https://archimer.ifremer.fr/doc/00938/104995/

Barabinot Yan, Speich Sabrina, Carton Xavier (2025). Assessing the thermohaline coherence of mesoscale eddies as described from in situ data. Ocean Science, 21(1), 151-179. Publisher's official version : https://doi.org/10.5194/os-21-151-2025 , Open Access version : https://archimer.ifremer.fr/doc/00935/104729/

Wang Chen, Stopa Justin, Vandemark Doug, Foster Ralph, Ayet Alex, Mouche Alexis , Chapron Bertrand , Sadowski Peter (2025). A multi-tagged SAR ocean image dataset identifying atmospheric boundary layer structure in winter tradewind conditions. Geoscience Data Journal, 12(1), 1-14. Publisher's official version : https://doi.org/10.1002/gdj3.282 , Open Access version : https://archimer.ifremer.fr/doc/00926/103802/

Boussidi Brahim, Le Goff Clement, Galard Corentin, Carton Xavier, Speich Sabrina (2024). The Analysis of North Brazil Current Rings from Automatic Identification System Data and Altimetric Currents. Remote Sensing, 16(15), 2828 (20p.). Publisher's official version : https://doi.org/10.3390/rs16152828 , Open Access version : https://archimer.ifremer.fr/doc/00903/101467/

Coadou-Chaventon S., Speich S., Zhang D., Rocha C.B., Swart S. (2024). Oceanic Fronts Driven by the Amazon Freshwater Plume and Their Thermohaline Compensation at the Submesoscale. Journal Of Geophysical Research-oceans, 129(7), e2024JC021326 (23p.). Publisher's official version : https://doi.org/10.1029/2024JC021326 , Open Access version : https://archimer.ifremer.fr/doc/00900/101195/

Napolitano Dante C., Carton Xavier, Gula Jonathan (2024). Vertical Interaction Between NBC Rings and Its Implications for South Atlantic Water Export. Journal Of Geophysical Research-oceans, 129(4), e2023JC020741 (21p.). Publisher's official version : https://doi.org/10.1029/2023JC020741 , Open Access version : https://archimer.ifremer.fr/doc/00884/99620/

Brilouet Pierre‐etienne, Redelsperger Jean‐luc, Bouin Marie‐noëlle, Couvreux Fleur, Villefranque Najda (2024). A numerical study of ocean surface layer response to atmospheric shallow convection: impact of cloud shading, rain and cold pool. Quarterly Journal Of The Royal Meteorological Society, 150(760), Part A. 1401-1419. Publisher's official version : https://doi.org/10.1002/qj.4651 , Open Access version : https://archimer.ifremer.fr/doc/00869/98109/

Reverdin Gilles, Olivier Léa, Cabanes Cecile, Boutin Jacqueline, Thouvenin-Masson Clovis, Vergely Jean-Luc, Kolodziejczyk Nicolas, Thierry Virginie , Khvorostyanov Dmitry, Jouanno Julien (2024). Missing Argo float profiles in highly stratified waters of the Amazon river plume. Journal Of Atmospheric And Oceanic Technology, 41(3), 221-233. Publisher's official version : https://doi.org/10.1175/JTECH-D-23-0072.1 , Open Access version : https://archimer.ifremer.fr/doc/00878/98959/

Barabinot Yan, Speich Sabrina, Carton Xavier (2024). Defining Mesoscale Eddies Boundaries from In-situ Data and a Theoretical Framework. Journal Of Geophysical Research-oceans, 129(2), e2023JC020422 (32p.). Publisher's official version : https://doi.org/10.1029/2023JC020422 , Open Access version : https://archimer.ifremer.fr/doc/00828/94001/

Metzl Nicolas, Fin Jonathan, Lo Monaco Claire, Mignon Claude, Alliouane Samir, Antoine David, Bourdin Guillaume, Boutin Jacqueline, Bozec Yann, Conan Pascal, Coppola Laurent, Diaz Frédéric, Douville Eric, Durrieu De Madron Xavier, Gattuso Jean-Pierre, Gazeau Frédéric, Golbol Melek, Lansard Bruno, Lefèvre Dominique, Lefèvre Nathalie, Lombard Fabien, Louanchi Férial, Merlivat Liliane, Olivier Léa, Petrenko Anne, Petton Sébastien , Pujo-Pay Mireille, Rabouille Christophe, Reverdin Gilles, Ridame Céline, Tribollet Aline, Vellucci Vincenzo, Wagener Thibaut, Wimart-Rousseau Cathy (2024). A synthesis of ocean total alkalinity and dissolved inorganic carbon measurements from 1993 to 2022: the SNAPO-CO2-v1 dataset. Earth System Science Data, 16(1), 89-120. Publisher's official version : https://doi.org/10.5194/essd-16-89-2024 , Open Access version : https://archimer.ifremer.fr/doc/00859/97094/

Bellenger Hugo, Bopp Laurent, Ethe Christian, Ho David, Duvel Jean Philippe, Flavoni Simona, Guez Lionel, Kataoka Takahito, Perrot Xavier, Parc Laetitia, Watanabe Michio (2023). Sensitivity of the Global Ocean Carbon Sink to the Ocean Skin in a Climate Model. Journal Of Geophysical Research-oceans, 128(7), e2022JC019479 (22p.). Publisher's official version : https://doi.org/10.1029/2022JC019479 , Open Access version : https://archimer.ifremer.fr/doc/00941/105309/

L'Hégaret Pierre, Schütte Florian, Speich Sabrina, Reverdin Gilles, Baranowski Dariusz B., Czeschel Rena, Fischer Tim, Foltz Gregory R., Heywood Karen J., Krahmann Gerd, Laxenaire Rémi, Le Bihan Caroline , Le Bot Philippe, Leizour Stephane, Rollo Callum, Schlundt Michael, Siddle Elizabeth, Subirade Corentin, Zhang Dongxiao, 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), 1801-1830. Publisher's official version : https://doi.org/10.5194/essd-15-1801-2023 , Open Access version : https://archimer.ifremer.fr/doc/00835/94694/

Subirade Corentin, L'Hégaret Pierre, Speich Sabrina, Laxenaire Rémi, Karstensen Johannes, Carton Xavier (2023). Combining an Eddy Detection Algorithm with In-Situ Measurements to Study North Brazil Current Rings. Remote Sensing, 15(7), 1897 (32p.). Publisher's official version : https://doi.org/10.3390/rs15071897 , Open Access version : https://archimer.ifremer.fr/doc/00831/94258/

Fernandez Pablo, Speich Sabrina, Borgnino Matteo, Meroni Agostino N., Desbiolles Fabien, Pasquero Claudia (2023). On the importance of the atmospheric coupling to the small-scale ocean in the modulation of latent heat flux. Frontiers In Marine Science, 10, 1136558 (20p.). Publisher's official version : https://doi.org/10.3389/fmars.2023.1136558 , Open Access version : https://archimer.ifremer.fr/doc/00855/96666/

Bailey Adriana, Aemisegger Franziska, Villiger Leonie, Los Sebastian A., Reverdin Gilles, Melendez Estefania Quinones, Acquistapace Claudia, Baranowski Dariusz B., Bock Tobias, Bony Sandrine, Bordsdorff Tobias, Coffman Derek, de Szoeke Simon P., Diekmann Christopher J., Duetsch Marina, Ertl Benjamin, Galewsky Joseph, Henze Dean, Makuch Przemyslaw, Noone David, Quinn Patricia K., Roesch Michael, Schneider Andreas, Schneider Matthias, Speich Sabrina, Stevens Bjorn, Thompson Elizabeth J. (2023). Isotopic measurements in water vapor, precipitation, and seawater during EUREC(4)A. Earth System Science Data, 15(1), 465-495. Publisher's official version : https://doi.org/10.5194/essd-15-465-2023 , Open Access version : https://archimer.ifremer.fr/doc/00855/96667/

Brilouet P.‐e., Bouniol D., Couvreux F., Ayet Alex, Granero‐belinchon C., Lothon M., Mouche Alexis (2023). Trade Wind Boundary Layer Turbulence and Shallow Precipitating Convection: New Insights Combining SAR Images, Satellite Brightness Temperature and Airborne In Situ Measurements. Geophysical Research Letters, 50(2), e2022GL102180 (10p.). Publisher's official version : https://doi.org/10.1029/2022GL102180 , Open Access version : https://archimer.ifremer.fr/doc/00812/92444/

Acquistapace C., Meroni A. N., Labbri G., Lange D., Späth F., Abbas S., Bellenger H. (2022). Fast atmospheric response to a cold oceanic mesoscale patch in the north‐western tropical Atlantic. Journal Of Geophysical Research-atmospheres, 127(21), e2022JD036799 (21p.). Publisher's official version : https://doi.org/10.1029/2022JD036799 , Open Access version : https://archimer.ifremer.fr/doc/00799/91124/

Olivier Léa, Boutin Jacqueline, Reverdin Gilles, Lefèvre Nathalie, Landschützer Peter, Speich Sabrina, Karstensen Johannes, Ritschel Markus, Wanninkhof Rik (2022). Wintertime process study of the North Brazil Current rings reveals the region as a larger sink for CO2 than expected. Biogeosciences, 19(12), 2969-2988. Publisher's official version : https://doi.org/10.5194/bg-19-2969-2022 , Open Access version : https://archimer.ifremer.fr/doc/00738/85015/

Reverdin Gilles, Waelbroeck Claire, Pierre Catherine, Akhoudas Camille, Aloisi Giovanni, Benetti Marion, Bourlès Bernard, Danielsen Magnus, Demange Jérôme, Diverrès Denis, Gascard Jean-Claude, Houssais Marie-Noëlle, Le Goff Hervé, Lherminier Pascale , Lo Monaco Claire, Mercier Herle, Metzl Nicolas, Morisset Simon, Naamar Aïcha, Reynaud Thierry , Sallée Jean-Baptiste, Thierry Virginie , Hartman Susan E., Mawji Edward M., Olafsdottir Solveig, Kanzow Torsten, Velo Anton, Voelker Antje, Yashayaev Igor, Haumann Alexander, Leng Melanie J., Arrowsmith Carol, Meredith Michael (2022). The CISE-LOCEAN seawater isotopic database (1998–2021). Earth System Science Data, 14(6), 2721-2735. Publisher's official version : https://doi.org/10.5194/essd-14-2721-2022 , Open Access version : https://archimer.ifremer.fr/doc/00750/86197/

Stevens Bjorn, Bony Sandrine, Farrell David, Ament Felix, Blyth Alan, Fairall Christopher, Karstensen Johannes, Quinn Patricia K., Speich Sabrina, Acquistapace Claudia, Aemisegger Franziska, Albright Anna Lea, Bellenger Hugo, Bodenschatz Eberhard, Caesar Kathy-Ann, Chewitt-Lucas Rebecca, de Boer Gijs, Delanoe Julien, Denby Leif, Ewald Florian, Fildier Benjamin, Forde Marvin, George Geet, Gross Silke, Hagen Martin, Hausold Andrea, Heywood Karen J., Hirsch Lutz, Jacob Marek, Jansen Friedhelm, Kinne Stefan, Klocke Daniel, Kolling Tobias, Konow Heike, Lothon Marie, Mohr Wiebke, Naumann Ann Kristin, Nuijens Louise, Olivier Lea, Pincus Robert, Pohlker Mira, Reverdin Gilles, Roberts Gregory, Schnitt Sabrina, Schulz Hauke, Siebesma A. Pier, Stephan Claudia Christine, Sullivan Peter, Touze-Peiffer Ludovic, Vial Jessica, Vogel Raphaela, Zuidema Paquita, Alexander Nicola, Alves Lyndon, Arixi Sophian, Asmath Hamish, Bagheri Gholamhossein, Baier Katharina, Bailey Adriana, Baranowski Dariusz, Baron Alexandre, Barrau Sebastien, Barrett Paul A., Batier Frederic, Behrendt Andreas, Bendinger Arne, Beucher Florent, Bigorre Sebastien, Blades Edmund, Blossey Peter, Bock Olivier, Boing Steven, Bosser Pierre, Bourras Denis, Bouruet-Aubertot Pascale, Bower Keith, Branellec Pierre, Branger Hubert, Brennek Michal, Brewer Alan, Brilouet Pierre Etienne, Brugmann Bjorn, Buehler Stefan A., Burke Elmo, Burton Ralph, Calmer Radiance, Canonici Jean-Christophe, Carton Xavier, Cato Gregory, Jr., Charles Jude Andre, Chazette Patrick, Chen Yanxu, Chilinski Michal T., Choularton Thomas, Chuang Patrick, Clarke Shamal, Coe Hugh, Cornet Celine, Coutris Pierre, Couvreux Fleur, Crewell Susanne, Cronin Timothy, Cui Zhiqiang, Cuypers Yannis, Daley Alton, Damerell Gillian M., Dauhut Thibaut, Deneke Hartwig, Desbios Jean-Philippe, Dorner Steffen, Donner Sebastian, Douet Vincent, Drushka Kyla, Dutsch Marina, Ehrlich Andre, Emanuel Kerry, Emmanouilidis Alexandros, Etienne Jean-Claude, Etienne-Leblanc Sheryl, Faure Ghislain, Feingold Graham, Ferrero Luca, Fix Andreas, Flamant Cyrille, Flatau Piotr Jacek, Foltz Gregory R., Forster Linda, Furtuna Iulian, Gadian Alan, Galewsky Joseph, Gallagher Martin, Gallimore Peter, Gaston Cassandra, Gentemann Chelle, Geyskens Nicolas, Giez Andreas, Gollop John, Gouirand Isabelle, Gourbeyre Christophe, de Graaf Dorte, de Groot Geiske E., Grosz Robert, Guttler Johannes, Gutleben Manuel, Hall Kashawn, Harris George, Helfer Kevin C., Henze Dean, Herbert Calvert, Holanda Bruna, Ibanez-Landeta Antonio, Intrieri Janet, Iyer Suneil, Julien Fabrice, Kalesse Heike, Kazil Jan, Kellman Alexander, Kidane Abiel T., Kirchner Ulrike, Klingebiel Marcus, Korner Mareike, Kremper Leslie Ann, Kretzschmar Jan, Kruger Ovid, Kumala Wojciech, Kurz Armin, L'Hegaret Pierre, Labaste Matthieu, Lachlan-Cope Tom, Laing Arlene, Landschutzer Peter, Lang Theresa, Lange Diego, Lange Ingo, Laplace Clement, Lavik Gauke, Laxenaire Remi, Le Bihan Caroline , Leandro Mason, Lefevre Nathalie, Lena Marius, Lenschow Donald, Li Qiang, Lloyd Gary, Los Sebastian, Losi Niccolo, Lovell Oscar, Luneau Christopher, Makuch Przemyslaw, Malinowski Szymon, Manta Gaston, Marinou Eleni, Marsden Nicholas, Masson Sebastien, Maury Nicolas, Mayer Bernhard, Mayers-Als Margarette, Mazel Christophe, McGeary Wayne, McWilliams James C., Mech Mario, Mehlmann Melina, Meroni Agostino Niyonkuru, Mieslinger Theresa, Minikin Andreas, Minnett Peter, Moller Gregor, Avalos Yanmichel Morfa, Muller Caroline, Musat Ionela, Napoli Anna, Neuberger Almuth, Noisel Christophe, Noone David, Nordsiek Freja, Nowak Jakub L., Oswald Lothar, Parker Douglas J., Peck Carolyn, Person Renaud, Philippi Miriam, Plueddemann Albert, Pohlker Christopher, Portge Veronika, Poschl Ulrich, Pologne Lawrence, Posyniak Michal, Prange Marc, Melendez Estefania Quinones, Radtke Jule, Ramage Karim, Reimann Jens, Renault Lionel, Reus Klaus, Reyes Ashford, Ribbe Joachim, Ringel Maximilian, Ritschel Markus, Rocha Cesar B., Rochetin Nicolas, Rottenbacher Johannes, Rollo Callum, Royer Haley, Sadoulet Pauline, Saffin Leo, Sandiford Sanola, Sandu Irina, Schafer Michael, Schemann Vera, Schirmacher Imke, Schlenczek Oliver, Schmidt Jerome, Schroder Marcel, Schwarzenboeck Alfons, Sealy Andrea, Senff Christoph J., Serikov Ilya, Shohan Samkeyat, Siddle Elizabeth, Smirnov Alexander, Spath Florian, Spooner Branden, Stolla M. Katharina, Szkolka Wojciech, de Szoeke Simon P., Tarot Stephane , Tetoni Eleni, Thompson Elizabeth, Thomson Jim, Tomassini Lorenzo, Totems Julien, Ubele Alma Anna, Villiger Leonie, von Arx Jan, Wagner Thomas, Walther Andi, Webber Ben, Wendisch Manfred, Whitehall Shanice, Wiltshire Anton, Wing Allison A., Wirth Martin, Wiskandt Jonathan, Wolf Kevin, Worbes Ludwig, Wright Ethan, Wulfmeyer Volker, Young Shanea, Zhang Chidong, Zhang Dongxiao, Ziemen Florian, Zinner Tobias, Zoger Martin (2021). EUREC4A. Earth System Science Data, 13(8), 4067-4119. Publisher's official version : https://doi.org/10.5194/essd-13-4067-2021 , Open Access version : https://archimer.ifremer.fr/doc/00662/77410/

Blunden J., Boyer T. (2021). State of the Climate in 2020. Bulletin of the American Meteorological Society, 102(8), Si-S475. Publisher's official version : https://doi.org/10.1175/2021BAMSStateoftheClimate.1 , Open Access version : https://archimer.ifremer.fr/doc/00755/86744/

Stephan Claudia Christine, Žagar Nedjeljka, Shepherd Theodore G. (2021). Waves and coherent flows in the tropical atmosphere: new opportunities, old challenges. Quarterly Journal Of The Royal Meteorological Society, 147(738), 2597-2624. Publisher's official version : https://doi.org/10.1002/qj.4109 , Open Access version : https://archimer.ifremer.fr/doc/00698/81043/

Reverdin G., Olivier L., Foltz G. R., Speich S., Karstensen J., Horstmann J., Zhang D., Laxenaire R., Carton Xavier, Branger H., Carrasco R., Boutin J. (2021). Formation and evolution of a freshwater plume in the northwestern tropical Atlantic in February 2020. Journal Of Geophysical Research-oceans, 126(4), e2020JC016981 (20p.). Publisher's official version : https://doi.org/10.1029/2020JC016981 , Open Access version : https://archimer.ifremer.fr/doc/00685/79670/

Bosser Pierre, Bock Olivier, Flamant Cyrille, Bony Sandrine, Speich Sabrina (2021). Integrated water vapour content retrievals from ship-borne GNSS receivers during EUREC4A. Earth System Science Data, 13(4), 1499–1517. Publisher's official version : https://doi.org/10.5194/essd-2020-282 , Open Access version : https://archimer.ifremer.fr/doc/00654/76561/

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Open access 2020_1800067045-weather-AT_Gill2.met	RAW DATA	117 MB	NetCDF CF
Open access 2020_1800067045-weather-AT_BATOS.met	RAW DATA	117 MB	NetCDF CF
Open access 2020_1800067045-weather-AT_Gill1.met	RAW DATA	117 MB	NetCDF CF

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Restricted access 2020_1800067058-bathy-AT_EM122.mbg		RAW DATA	1 GB	NetCDF CF

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Restricted access 2020_1800067045-sb_depth-AT_EK60200.depth	RAW DATA	858 KB	NetCDF CF
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File	Processing level	Size	Format
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Open access EUREC4A_2020_ATAL_OS38WT_1_fhv1.nc	CONTROLLED DATA	156 MB	NETCDF OceanSite
Open access EUREC4A_2020_ATAL_OS38WT_figures.tar	CONTROLLED DATA	4 MB	TAR
Open access EUREC4A_2020_ATAL_OS38WT_1.nc	CONTROLLED DATA	156 MB	NETCDF OceanSite
Open access EUREC4A_2020_ATAL_OS38WT_1.txt	CONTROLLED DATA	1 KB	ASCII