RREX

Type Set of cruises
Dates 01/06/2015 - 31/08/2017
Chief scientist(s) THIERRY Virginie
Project manager THIERRY Virginie
DOI 10.18142/312
Objective

The Reykjanes Ridge is a major topographic feature of the North-Atlantic Ocean. It lies in a central position along the main paths followed by the upper and lower limbs of the Meridional Overturning Cell (MOC), which contributes at moderating the European climate in creating a transport of heat toward the North Atlantic. Our hypothesis is that the Reykjanes Ridge influences the main components of the upper and lower limbs of the MOC because it is a strong constraint on the horizontal and vertical circulation, it impacts the water mass distribution and evolution and it is a region of intense turbulent mixing. The objective of the RREX project is to conduct a process study in order to better understand the role of the Reykjanes Ridge on the dynamics and water mass transformation in the subpolar gyre and ultimately on the MOC. This project relies on two hydrographic cruises to acquire the adequate dataset to (1) provide a synoptic high-resolution and full depth survey to monitor the flow along and across the ridge, (2) to quantify the variability of the vertical and horizontal structure of the currents parallel to the ridge at daily to seasonal time-scales and (3) to provide sufficient turbulence observations to monitor the heterogeneous and intermittent mixing processes.

Data acquired and analyses carried out at sea and on shore

Published data

Fontela Marcos, Alonso-Perez F., Bastero S., Thierry Virginie, Pérez Fiz Fernández (2024). Discrete measurements of pH, dissolved inorganic nutrients (nitrate, phosphate and silicate) and hydrographic variables (salinity, temperature, dissolved oxygen) obtained during the cruise RREX 2015. https://doi.org/10.17882/102883


(2024) Water isotopes of sea water analyzed since 1998 at LOCEAN. https://doi.org/10.17882/71186


Bibliography

Publications

Furey H., Bower A., Ramsey A., Houk A., Meunier Thomas (2024). Variability of Iceland Scotland Overflow Water Across the Reykjanes Ridge: 2‐Years of Moored Observations in the Bight Fracture Zone. Journal Of Geophysical Research-oceans, 129(6), e2023JC020463 (15p.). Publisher's official version : https://doi.org/10.1029/2023JC020463 , Open Access version : https://archimer.ifremer.fr/doc/00891/100328/


Petit Tillys, Thierry VirginieORCID, Mercier HerleORCID (2022). Deep through-flow in the Bight Fracture Zone. Ocean Science, 18(4), 1055-1071. Publisher's official version : https://doi.org/10.5194/os-18-1055-2022 , Open Access version : https://archimer.ifremer.fr/doc/00767/87921/


Desbruyères DamienORCID, Prieto Bravo Eva, Thierry VirginieORCID, Mercier HerleORCID, Lherminier PascaleORCID, Cabanes Cécile, Biló Tiago C., Fried Nora, Femke De Jong M. (2022). Warming‐to‐cooling reversal of overflow‐derived water masses in the Irminger Sea during 2002‐2021. Geophysical Research Letters, 49(10), e2022GL098057 (10p.). Publisher's official version : https://doi.org/10.1029/2022GL098057 , Open Access version : https://archimer.ifremer.fr/doc/00771/88316/


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 PascaleORCID, Lo Monaco Claire, Mercier HerleORCID, Metzl Nicolas, Morisset Simon, Naamar Aïcha, Reynaud ThierryORCID, Sallée Jean-Baptiste, Thierry VirginieORCID, 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/


Vic Clement, Ferron BrunoORCID, Thierry VirginieORCID, Mercier HerleORCID, Lherminier PascaleORCID (2021). Tidal and near-inertial internal waves over the Reykjanes Ridge. Journal Of Physical Oceanography, 51(2), 419-437. Publisher's official version : https://doi.org/10.1175/JPO-D-20-0097.1 , Open Access version : https://archimer.ifremer.fr/doc/00661/77320/


Le Traon Pierre-YvesORCID, D'Ortenzio Fabrizio, Babin Marcel, Leymarie Edouard, Marec Claudie, Pouliquen SylvieORCID, Thierry VirginieORCID, Cabanes Cecile, Claustre Hervé, Desbruyeres DamienORCID, Lacour Leo, Lagunas Jose-Luis, Maze GuillaumeORCID, Mercier HerleORCID, Penkerc'h Christophe, Poffa Noe, Poteau Antoine, Prieur Louis, Racape Virginie, Randelhoff Achim, Rehm Eric, Schmechtig Catherine Marie, Taillandier Vincent, Wagener Thibaut, Xing Xiaogang (2020). Preparing the New Phase of Argo: Scientific Achievements of the NAOS Project. Frontiers In Marine Science, 7, 577408 (27p.). Publisher's official version : https://doi.org/10.3389/fmars.2020.577408 , Open Access version : https://archimer.ifremer.fr/doc/00654/76584/


André XavierORCID, Le Traon Pierre-YvesORCID, Le Reste Serge, Dutreuil Vincent, Leymarie Edouard, Malardé Damien, Marec Claudie, Sagot Jérôme, Amice Martin, Babin Marcel, Claustre Hervé, David Arnaud, D’ortenzio Fabrizio, Kolodziejczyk NicolasORCID, Lagunas José Luis, Le Menn Marc, Moreau Bertrand, Nogré David, Penkerc’h Christophe, Poteau Antoine, Renaut Corentin, Schaeffer Christophe, Taillandier Vincent, Thierry VirginieORCID (2020). Preparing the New Phase of Argo: Technological Developments on Profiling Floats in the NAOS Project. Frontiers In Marine Science, 7, 577446 (22p.). Publisher's official version : https://doi.org/10.3389/fmars.2020.577446 , Open Access version : https://archimer.ifremer.fr/doc/00658/77029/


Lavergne C., Vic Clement, Madec G, Roquet F., Waterhouse A. F., Whalen C. B., Cuypers Y., Bouruet‐aubertot P., Ferron BrunoORCID, Hibiya T. (2020). A parameterization of local and remote tidal mixing. Journal Of Advances In Modeling Earth Systems, 12(5), e2020MS002065 (25p.). Publisher's official version : https://doi.org/10.1029/2020MS002065 , Open Access version : https://archimer.ifremer.fr/doc/00624/73573/


Le Corre Mathieu, Gula Jonathan, Tréguier Anne-Marie (2020). Barotropic vorticity balance of the North Atlantic subpolar gyre in an eddy-resolving model. Ocean Science, 16(2), 451-468. Publisher's official version : https://doi.org/10.5194/os-16-451-2020 , Open Access version : https://archimer.ifremer.fr/doc/00629/74062/


Petit Tillys, Mercier HerleORCID, Thierry VirginieORCID (2019). New insight into the formation and evolution of the East Reykjanes Ridge Current and Irminger Current. Journal Of Geophysical Research-oceans, 124(12), 9171-9189. Publisher's official version : https://doi.org/10.1029/2019JC015546 , Open Access version : https://archimer.ifremer.fr/doc/00591/70347/


Racape V., Thierry VirginieORCID, Mercier HerleORCID, Cabanes CecileORCID (2019). ISOW spreading and mixing as revealed by Deep‐Argo floats launched in the Charlie Gibbs Fracture Zone. Journal Of Geophysical Research-oceans, 124(10), 6787-6808. Publisher's official version : https://doi.org/10.1029/2019JC015040 , Open Access version : https://archimer.ifremer.fr/doc/00513/62428/


Lozier M. S., Li F., Bacon S., Bahr F., Bower A. S., Cunningham S. A., de Jong M. F., de Steur L., Deyoung B., Fischer J., Gary S. F., Greenan B. J. W., Holliday N. P., Houk A., Houpert L., Inall M. E., Johns W. E., Johnson H. L., Johnson C., Karstensen J., Koman G., Le Bras I. A., Lin X., Mackay N., Marshall D. P., Mercier HerleORCID, Oltmanns M., Pickart R. S., Ramsey A. L., Rayner D., Straneo F., Thierry VirginieORCID, Torres D. J., Williams R. G., Wilson C., Yang J., Yashayaev I., Zhao J. (2019). A sea change in our view of overturning in the subpolar North Atlantic. Science, 363(6426), 516-521. Publisher's official version : https://doi.org/10.1126/science.aau6592 , Open Access version : https://archimer.ifremer.fr/doc/00481/59234/


Roemmich Dean, Alford Matthew H., Claustre Hervé, Johnson Kenneth, King Brian, Moum James, Oke Peter, Owens W. Brechner, Pouliquen SylvieORCID, Purkey Sarah, Scanderbeg Megan, Suga Toshio, Wijffels Susan, Zilberman Nathalie, Bakker Dorothee, Baringer Molly, Belbeoch Mathieu, Bittig Henry C., Boss Emmanuel, Calil Paulo, Carse Fiona, Carval ThierryORCID, Chai Fei, Conchubhair Diarmuid Ó., D’ortenzio Fabrizio, Dall’olmo Giorgio, Desbruyeres DamienORCID, Fennel Katja, Fer Ilker, Ferrari Raffaele, Forget Gael, Freeland Howard, Fujiki Tetsuichi, Gehlen Marion, Greenan Blair, Hallberg Robert, Hibiya Toshiyuki, Hosoda Shigeki, Jayne Steven, Jochum Markus, Johnson Gregory C., Kang Kiryong, Kolodziejczyk NicolasORCID, Körtzinger Arne, Traon Pierre-Yves Le, Lenn Yueng-Djern, Maze GuillaumeORCID, Mork Kjell Arne, Morris Tamaryn, Nagai Takeyoshi, Nash Jonathan, Garabato Alberto Naveira, Olsen Are, Pattabhi Rama Rao, Prakash Satya, Riser Stephen, Schmechtig Catherine, Schmid Claudia, Shroyer Emily, Sterl Andreas, Sutton Philip, Talley Lynne, Tanhua Toste, Thierry VirginieORCID, Thomalla Sandy, Toole John, Troisi Ariel, Trull Thomas W., Turton Jon, Velez-Belchi Pedro Joaquin, Walczowski Waldemar, Wang Haili, Wanninkhof Rik, Waterhouse Amy F., Waterman Stephanie, Watson Andrew, Wilson Cara, Wong Annie P. S., Xu Jianping, Yasuda Ichiro (2019). On the Future of Argo: A Global, Full-Depth, Multi-Disciplinary Array. Frontiers In Marine Science, 6(439), 28p. Publisher's official version : https://doi.org/10.3389/fmars.2019.00439 , Open Access version : https://archimer.ifremer.fr/doc/00509/62043/


Petit Tillys, Mercier HerleORCID, Thierry VirginieORCID (2018). First direct estimates of volume and water mass transports across the Reykjanes Ridge. Journal Of Geophysical Research-oceans, 123(9), 6703-6719. Publisher's official version : https://doi.org/10.1029/2018JC013999 , Open Access version : https://archimer.ifremer.fr/doc/00454/56604/


Reverdin Gilles, Metzl Nicolas, Olafsdottir Solveig, Racape Virginie, Takahashi Taro, Benetti Marion, Valdimarsson Hedinn, Benoit-Cattin Alice, Danielsen Magnus, Fin Jonathan, Naamar Aicha, Pierrot Denis, Sullivan Kevin, Bringas Francis, Goni Gustavo (2018). SURATLANT: a 1993-2017 surface sampling in the central part of the North Atlantic subpolar gyre. Earth System Science Data, 10(4), 1901-1924. Publisher's official version : https://doi.org/10.5194/essd-10-1901-2018 , Open Access version : https://archimer.ifremer.fr/doc/00466/57721/


Lozier M. Susan, Bacon Sheldon, Bower Amy S., Cunningham Stuart A., de Jong M. Femke, de Steur Laura, Deyoung Brad, Fischer Juergen, Gary Stefan F., Greenan Blair J. W., Heimbach Patrick, Holliday Naomi P., Houpert Loic, Inall Mark E., Johns William E., Johnson Helen L., Karstensen Johannes, Li Feili, Lin Xiaopei, Mackay Neill, Marshall David P., Mercier HerleORCID, Myers Paul G., Pickart Robert S., Pillar Helen R., Straneo Fiammetta, Thierry VirginieORCID, Weller Robert A., Williams Richard G., Wilson Chris, Yang Jiayan, Zhao Jian, Zika Jan D. (2017). Overturning in the Subpolar North Atlantic Program: a new international ocean observing system. Bulletin Of The American Meteorological Society, 98(4), 737-752. Publisher's official version : https://doi.org/10.1175/BAMS-D-16-0057.1 , Open Access version : https://archimer.ifremer.fr/doc/00358/46881/


Le Reste Serge, Dutreuil Vincent, Andre XavierORCID, Thierry VirginieORCID, Renaut Corentin, Le Traon Pierre-YvesORCID, Maze GuillaumeORCID (2016). "Deep-Arvor": A new profiling float to extend the Argo observations down to 4000m depth. Journal Of Atmospheric And Oceanic Technology, 33(5), 1039-1055. Publisher's official version : https://doi.org/10.1175/JTECH-D-15-0214.1 , Open Access version : https://archimer.ifremer.fr/doc/00318/42969/


References of Technical Reports

Balem KevinORCID (2019). Surface Effects on Long-ranger Moored ADCP (RREX case study). Technical note. https://archimer.ifremer.fr/doc/00495/60624/


Gallian Marine, Thierry VirginieORCID (2018). Delayed-mode quality control of dissolved oxygen concentration measured by ARGO floats in the North- Atlantic with LOCODOX - Floats deployed in 2012, 2014, 2015, 2016 and 2017. https://doi.org/10.13155/58314


Petit Tillys, Thierry VirginieORCID, Mercier HerleORCID (2018). RREX 2015. S-ADCP data processing report. LOPS/18-01 (March 2018). https://doi.org/10.13155/53471


Branellec Pierre, Thierry VirginieORCID (2018). RREX 2017. CTD-O2 Data report. Rap. Int. LOPS/18-04. https://doi.org/10.13155/58074


Cabanes Cecile, Racape Virginie, Thierry Virginie (2018). Delayed mode analysis of DEEP ARVOR floats . SO ARGO - LOPS report n°LOPS/18-03 . https://archimer.ifremer.fr/doc/00443/55464/

Branellec Pierre, Thierry VirginieORCID (2016). RREX 2015. CTD-O2 Data report. ODE/LOPS/16-26. https://doi.org/10.13155/47156


Thierry VirginieORCID, Branellec Pierre, Leizour Stephane, Hamon Michel (2015). Compte rendu de la campagne RREX 2015. N/O Thalassa 5 juin 2015 - 10 Juillet 2015. Note technique LPO-GT15-15. https://archimer.ifremer.fr/doc/00300/41154/


Le Reste Serge (2015). E-AIMS. Euro - Argo Improvements for the GMES Marine Service. R&D on float technology. Synthesis. D2.6 . 1. D2.6 . 1. https://archimer.ifremer.fr/doc/00317/42811/


Petit Tillys (2015). Dynamique des courants océaniques sur la Ride de Reykjanes: évaluation et analyse de simulations numériques de résolutions différentes.


References of Articles published in periodicals and magazines for the general public

Communiqué de presse associé à l'article de V. Racapé sur les flotteurs Deep-Arvor : plusieurs articles dans Le Marin, Journal de l'Environnement, le Journal du Nautisme (l'Equipe), Bretagne Magazine.

References of International Seminar Communications

N. Penny Holliday et al. (2019) Ocean Circulation Changes Cause the Largest Freshening Event for 120 years in the Subpolar North Atlantic, Vienne, Avril 2019

Patricia Zunino, Herlé Mercier, and Virginie Thierry (2019), Preconditioning favored deep convection in the Irminger Sea in winters 2016, 2017 and 2018. Vienne, Avril 2019

Petit T., Mercier H., Thierry V (2018), Circulation in the vicinity of the Reykjanes Ridge in June-July 2015, OSM2018, Portland (USA), February 2018 (poster)

Virginie Racapé, Virginie Thierry, Herlé Mercier, Cécile Cabanes (2018) ISOW spreading and mixing from the Charlie Gibbs Fracture Zone as revealed by Deep-Argo floats. ASW6 meeting, Tokyo (Japon), October 2018

Virginie Racapé, Virginie Thierry, Herlé Mercier, Cécile Cabanes, Cathy Lagadec, Guillaume Maze (2018) ISOW pathways and mixing revealed by Deep-Argo floats. EGU2018 meeting, Vienne, Avril 2018

Mercier H., Petit T., Thierry V. (2017) Iceland Scotland Overflow Water flow through the Bight Fracture Zone in June-July 2015. EGU2017 meeting, Vienne, Avril 2017 (poster)

Petit T., Mercier H., Thierry V., (2017) Circulation in the region of the Reykjanes Ridge in June-July 2015. EGU2017 meeting, Vienne, Avril 2017. (poster)

V. Thierry, H. Mercier, T. Petit, P. Lherminier (2017), Overview of the OVIDE and RREX projects: results and future plans, Irminger Sea Workshop, Southampton (UK), November 2017.

Herlé Mercier, Tillys Petit, Virginie Thierry (2016), The flows over the Reykjanes Ridge, Ocean Sciences meeting, New Orleans, Fevrier 2016.

V. Thierry, Euro-Argo Management Board, H. Mercier and G. Maze (2016), European contributions to Deep Argo and scientific objectives. 1st meeting of the Scientific Advisory Group of the ERIC Euro-Argo. Brest, Avril 2016

References of National Seminar Communications

V. Thierry (2018), The RREX project. Colloque de restitution LEFE, 28-30 Mars 2018, Clermont-Ferrand.

Hamon M., Peden O., Terre T., Le Bot P., Marie L., Thierry V., Speich S , Gautier L, Barbot S, Prigent S, Le Reste S, Andre X (2014): Les systèmes SYREDOMY (SYstème de REcupération des DOnnées par Messager hYperfréquence) et ASFAR (Autonomous System For Argo float Release), Présentation orale à l'Atelier d'Expérimentation et d'Instrumentation (AEI), Toulouse (France), 2014.

Thesis using campaign data

Ivane Salaun (2022) Seasonal to interannual variability of the current near the Reykjanes Ridge and their vertical and horizontal structures (2019-2022)

Le Corre Mathieu (2020). Impact de la topographie et de l'activité méso-échelle sur la dynamique de gyre subpolaire Nord Atlantique / Impact of the topography and the mesoscale activity on the North Atlantic subpolar gyre dynamics. PhD Thesis, Université de Bretagne Occidentale.


Mathieu Le Corre (2020) Impact de la topographie et de l'activité méso-échelle sur la dynamique de gyre subpolaire Nord Atlantique. Océanographie. Université de Bretagne occidentale - Brest, 2020. Français. (NNT : 2020BRES0021). (tel-03171062) https://tel.archives-ouvertes.fr/tel-03171062

Petit Tillys (2018). Caractérisation de la circulation autour, au-dessus et à travers (via des zones de fracture) la dorsale de Reykjanes / Characterization of the circulation around, above and across (through fracture zones) the Reykjanes Ridge. PhD Thesis, Université de Bretagne occidentale. https://archimer.ifremer.fr/doc/00498/60969/