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1. A hydrothermal plume on the Southwest Indian Ridge revealed by a multi-proxy approach: Impact on iron and manganese distributions (GEOTRACES GS02)

Author

Baudet, Corentin, Bucciarelli, Eva, Sarthou, Géraldine, Boulart, Cédric, Pelleter, Ewan, Goddard-Dwyer, Millie, Whitby, Hannah, Zhang, Rui, Obernosterer, Ingrid, Gonzalez-Santana, David, Léon, Morgane, van Beek, Pieter, Sanial, Virginie, Jeandel, Catherine, Vivier, Frédéric, Vorrath, Maria-Elena, Liao, Wen-Hsuan, Germain, Yoan, and Planquette, Hélène

Published
2024
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3. Dense Water Production in Storfjorden, Svalbard, From a 1‐Year Time Series of Observations and a Simple Model: Are Polynyas in a Warming Arctic Exporting Heat to the Deep Ocean?

Author

Vivier, Frédéric, Lourenço, Antonio, Skogseth, Ragnheid, Goszczko, Ilona, Michel, Elisabeth, Rousset, Clément, Bouruet‐Aubertot, Pascale, Cuypers, Yannis, Lansard, Bruno, and Waelbroeck, Claire

Subjects
SALINE waters, SEAWATER, POLYNYAS, TERRITORIAL waters, TIME series analysis
Abstract

The formation of dense Brine‐enriched Shelf Water (BSW) in Storfjorden is analyzed during Winter 2016–2017 from mooring observations, a polynya model nudged to satellite observations, and an original BSW production model. The ice season was two months shorter than average, yet 44.2 km3 ${\text{km}}^{3}$ of sea ice were formed, in line with estimates for the period preceding the atlantification of the Barents Sea in the mid‐2000s: A thinner, more fragile ice may favor polynya openings and frazil ice production. A saline specimen of BSW was produced in large volumes, corresponding to an annual mean transport of 0.042 Sv, larger than previous estimates. The important production is due to the preconditioning of the polynya with a more saline source water, exceeding the pre‐2005 values by 0.37. The BSW overflow was observed on the West Spitsbergen shelf slope from hydrographic sections down to 750 m, thus entering the Norwegian Sea Deep Water layer. Its core temperature was about 1° $1{}^{\circ}$C warmer than the pre‐2005 values owing to the entrainment of a warmer water in Storfjordrenna, suggesting that a part of the excess surface heat of the Barents Sea could be exported into the deep ocean. Overall our results suggest that dense water formation in the Storfjorden polynya may not, at least for now, be hampered by the atlantification of the Barents Sea, and perhaps even temporarily favored by the more saline source water. Anomalous atmospheric warming during the Winter‐Spring may however disrupt the production, as was observed 1 year before. Plain Language Summary: Sea‐ice extent has strongly declined in the Barents Sea since the mid‐2000s. The sea has also become warmer and saltier, a phenomenon referred to as atlantification. This raises concerns regarding the future of dense water production in coastal polynyas, an essential cog in the climate machine. Polynyas work as ice factories, releasing large quantities of salt in the ocean, which can lead surface waters to cascade into the deep ocean when dense enough. We analyze dense water production in Winter 2016–2017 in the Storfjorden polynya (Svalbard) from a time series of hydrographic observations and an ice production model. Despite a shorter freezing season, the ice production and salt release remained average, while preconditioning with a more saline source water permitted the production of a particularly saline dense water in large volumes. The dense bottom plume was observed to sink into the deep ocean. It was warmer than in the past, suggesting that part of the excess surface heat could be stored at depth. Overall our results suggest that dense water production may not, at least for now, be hampered by the atlantification of the Barents Sea, unless strongly anomalous winter atmospheric warming disrupts ice production, as observed 1 year before. Key Points: A simple model to estimate the production of dense water from hydrographic time series and salt forcing is developedPreconditioning of the polynya with saltier source water promoted the production of dense Brine‐enriched Shelf Water (BSW) in 2017 despite an average ice productionThe BSW overflow was observed to sink down to the Deep Water layer: It was warmer than in observations prior to the atlantification [ABSTRACT FROM AUTHOR]

Published
2024
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4. Altimetry for the future: Building on 25 years of progress

Author

Abdalla, Saleh, Abdeh Kolahchi, Abdolnabi, Ablain, Michaël, Adusumilli, Susheel, Aich Bhowmick, Suchandra, Alou-Font, Eva, Amarouche, Laiba, Andersen, Ole Baltazar, Antich, Helena, Aouf, Lotfi, Arbic, Brian, Armitage, Thomas, Arnault, Sabine, Artana, Camila, Aulicino, Giuseppe, Ayoub, Nadia, Badulin, Sergei, Baker, Steven, Banks, Chris, Bao, Lifeng, Barbetta, Silvia, Barceló-Llull, Bàrbara, Barlier, François, Basu, Sujit, Bauer-Gottwein, Peter, Becker, Matthias, Beckley, Brian, Bellefond, Nicole, Belonenko, Tatyana, Benkiran, Mounir, Benkouider, Touati, Bennartz, Ralf, Benveniste, Jérôme, Bercher, Nicolas, Berge-Nguyen, Muriel, Bettencourt, Joao, Blarel, Fabien, Blazquez, Alejandro, Blumstein, Denis, Bonnefond, Pascal, Borde, Franck, Bouffard, Jérôme, Boy, François, Boy, Jean-Paul, Brachet, Cédric, Brasseur, Pierre, Braun, Alexander, Brocca, Luca, Brockley, David, Brodeau, Laurent, Brown, Shannon, Bruinsma, Sean, Bulczak, Anna, Buzzard, Sammie, Cahill, Madeleine, Calmant, Stéphane, Calzas, Michel, Camici, Stefania, Cancet, Mathilde, Capdeville, Hugues, Carabajal, Claudia Cristina, Carrere, Loren, Cazenave, Anny, Chassignet, Eric P., Chauhan, Prakash, Cherchali, Selma, Chereskin, Teresa, Cheymol, Cecile, Ciani, Daniele, Cipollini, Paolo, Cirillo, Francesca, Cosme, Emmanuel, Coss, Steve, Cotroneo, Yuri, Cotton, David, Couhert, Alexandre, Coutin-Faye, Sophie, Crétaux, Jean-François, Cyr, Frederic, d’Ovidio, Francesco, Darrozes, José, David, Cedric, Dayoub, Nadim, De Staerke, Danielle, Deng, Xiaoli, Desai, Shailen, Desjonqueres, Jean-Damien, Dettmering, Denise, Di Bella, Alessandro, Díaz-Barroso, Lara, Dibarboure, Gerald, Dieng, Habib Boubacar, Dinardo, Salvatore, Dobslaw, Henryk, Dodet, Guillaume, Doglioli, Andrea, Domeneghetti, Alessio, Donahue, David, Dong, Shenfu, Donlon, Craig, Dorandeu, Joël, Drezen, Christine, Drinkwater, Mark, Du Penhoat, Yves, Dushaw, Brian, Egido, Alejandro, Erofeeva, Svetlana, Escudier, Philippe, Esselborn, Saskia, Exertier, Pierre, Fablet, Ronan, Falco, Cédric, Farrell, Sinead Louise, Faugere, Yannice, Femenias, Pierre, Fenoglio, Luciana, Fernandes, Joana, Fernández, Juan Gabriel, Ferrage, Pascale, Ferrari, Ramiro, Fichen, Lionel, Filippucci, Paolo, Flampouris, Stylianos, Fleury, Sara, Fornari, Marco, Forsberg, Rene, Frappart, Frédéric, Frery, Marie-laure, Garcia, Pablo, Garcia-Mondejar, Albert, Gaudelli, Julia, Gaultier, Lucile, Getirana, Augusto, Gibert, Ferran, Gil, Artur, Gilbert, Lin, Gille, Sarah, Giulicchi, Luisella, Gómez-Enri, Jesús, Gómez-Navarro, Laura, Gommenginger, Christine, Gourdeau, Lionel, Griffin, David, Groh, Andreas, Guerin, Alexandre, Guerrero, Raul, Guinle, Thierry, Gupta, Praveen, Gutknecht, Benjamin D., Hamon, Mathieu, Han, Guoqi, Hauser, Danièle, Helm, Veit, Hendricks, Stefan, Hernandez, Fabrice, Hogg, Anna, Horwath, Martin, Idžanović, Martina, Janssen, Peter, Jeansou, Eric, Jia, Yongjun, Jia, Yuanyuan, Jiang, Liguang, Johannessen, Johnny A., Kamachi, Masafumi, Karimova, Svetlana, Kelly, Kathryn, Kim, Sung Yong, King, Robert, Kittel, Cecile M.M., Klein, Patrice, Klos, Anna, Knudsen, Per, Koenig, Rolf, Kostianoy, Andrey, Kouraev, Alexei, Kumar, Raj, Labroue, Sylvie, Lago, Loreley Selene, Lambin, Juliette, Lasson, Léa, Laurain, Olivier, Laxenaire, Rémi, Lázaro, Clara, Le Gac, Sophie, Le Sommer, Julien, Le Traon, Pierre-Yves, Lebedev, Sergey, Léger, Fabien, Legresy, Benoı̂t, Lemoine, Frank, Lenain, Luc, Leuliette, Eric, Levy, Marina, Lillibridge, John, Liu, Jianqiang, Llovel, William, Lyard, Florent, Macintosh, Claire, Makhoul Varona, Eduard, Manfredi, Cécile, Marin, Frédéric, Mason, Evan, Massari, Christian, Mavrocordatos, Constantin, Maximenko, Nikolai, McMillan, Malcolm, Medina, Thierry, Melet, Angelique, Meloni, Marco, Mertikas, Stelios, Metref, Sammy, Meyssignac, Benoit, Minster, Jean-François, Moreau, Thomas, Moreira, Daniel, Morel, Yves, Morrow, Rosemary, Moyard, John, Mulet, Sandrine, Naeije, Marc, Nerem, Robert Steven, Ngodock, Hans, Nielsen, Karina, Nilsen, Jan Even Øie, Niño, Fernando, Nogueira Loddo, Carolina, Noûs, Camille, Obligis, Estelle, Otosaka, Inès, Otten, Michiel, Oztunali Ozbahceci, Berguzar, P. Raj, Roshin, Paiva, Rodrigo, Paniagua, Guillermina, Paolo, Fernando, Paris, Adrien, Pascual, Ananda, Passaro, Marcello, Paul, Stephan, Pavelsky, Tamlin, Pearson, Christopher, Penduff, Thierry, Peng, Fukai, Perosanz, Felix, Picot, Nicolas, Piras, Fanny, Poggiali, Valerio, Poirier, Étienne, Ponce de León, Sonia, Prants, Sergey, Prigent, Catherine, Provost, Christine, Pujol, M-Isabelle, Qiu, Bo, Quilfen, Yves, Rami, Ali, Raney, R. Keith, Raynal, Matthias, Remy, Elisabeth, Rémy, Frédérique, Restano, Marco, Richardson, Annie, Richardson, Donald, Ricker, Robert, Ricko, Martina, Rinne, Eero, Rose, Stine Kildegaard, Rosmorduc, Vinca, Rudenko, Sergei, Ruiz, Simón, Ryan, Barbara J., Salaün, Corinne, Sanchez-Roman, Antonio, Sandberg Sørensen, Louise, Sandwell, David, Saraceno, Martin, Scagliola, Michele, Schaeffer, Philippe, Scharffenberg, Martin G., Scharroo, Remko, Schiller, Andreas, Schneider, Raphael, Schwatke, Christian, Scozzari, Andrea, Ser-giacomi, Enrico, Seyler, Frederique, Shah, Rashmi, Sharma, Rashmi, Shaw, Andrew, Shepherd, Andrew, Shriver, Jay, Shum, C.K., Simons, Wim, Simonsen, Sebatian B., Slater, Thomas, Smith, Walter, Soares, Saulo, Sokolovskiy, Mikhail, Soudarin, Laurent, Spatar, Ciprian, Speich, Sabrina, Srinivasan, Margaret, Srokosz, Meric, Stanev, Emil, Staneva, Joanna, Steunou, Nathalie, Stroeve, Julienne, Su, Bob, Sulistioadi, Yohanes Budi, Swain, Debadatta, Sylvestre-baron, Annick, Taburet, Nicolas, Tailleux, Rémi, Takayama, Katsumi, Tapley, Byron, Tarpanelli, Angelica, Tavernier, Gilles, Testut, Laurent, Thakur, Praveen K., Thibaut, Pierre, Thompson, LuAnne, Tintoré, Joaquín, Tison, Céline, Tourain, Cédric, Tournadre, Jean, Townsend, Bill, Tran, Ngan, Trilles, Sébastien, Tsamados, Michel, Tseng, Kuo-Hsin, Ubelmann, Clément, Uebbing, Bernd, Vergara, Oscar, Verron, Jacques, Vieira, Telmo, Vignudelli, Stefano, Vinogradova Shiffer, Nadya, Visser, Pieter, Vivier, Frederic, Volkov, Denis, von Schuckmann, Karina, Vuglinskii, Valerii, Vuilleumier, Pierrik, Walter, Blake, Wang, Jida, Wang, Chao, Watson, Christopher, Wilkin, John, Willis, Josh, Wilson, Hilary, Woodworth, Philip, Yang, Kehan, Yao, Fangfang, Zaharia, Raymond, Zakharova, Elena, Zaron, Edward D., Zhang, Yongsheng, Zhao, Zhongxiang, Zinchenko, Vadim, and Zlotnicki, Victor

Published
2021
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5. Tagging of water masses with covariance of trace metals and prokaryotic taxa in the Southern Ocean.

Author

Zhang, Rui, Blain, Stéphane, Baudet, Corentin, Planquette, Hélène, Vivier, Frédéric, Catala, Philippe, Crispi, Olivier, Guéneuguès, Audrey, Marie, Barbara, Debeljak, Pavla, and Obernosterer, Ingrid

Abstract

Marine microbes are strongly interrelated to trace metals in the ocean. How the availability of trace metals selects for prokaryotic taxa and the potential feedback of microbial processes on the trace metal distribution in the ocean remain poorly understood. We investigate here the potential reciprocal links between diverse prokaryotic taxa and iron (Fe), manganese (Mn), copper (Cu), and nickel (Ni) as well as apparent oxygen utilization (AOU) across 12 well‐defined water masses in the Southern Indian Ocean (SWINGS—South West Indian Ocean GEOTRACES GS02 Section cruise). Applying partial least square regression (PLSR) analysis, we show that the water masses are associated with particular latent vectors that are a combination of the spatial distribution of prokaryotic taxa, trace elements, and AOU. This approach provides novel insights on the potential interactions between prokaryotic taxa and trace metals in relation to organic matter remineralization in distinct water masses of the ocean. [ABSTRACT FROM AUTHOR]

Published
2024
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6. Towards Operational Fiducial Reference Measurement (FRM) Data for the Calibration and Validation of the Sentinel-3 Surface Topography Mission over Inland Waters, Sea Ice, and Land Ice

Author

Da Silva, Elodie, primary, Woolliams, Emma R., additional, Picot, Nicolas, additional, Poisson, Jean-Christophe, additional, Skourup, Henriette, additional, Moholdt, Geir, additional, Fleury, Sara, additional, Behnia, Sajedeh, additional, Favier, Vincent, additional, Arnaud, Laurent, additional, Aublanc, Jérémie, additional, Fouqueau, Valentin, additional, Taburet, Nicolas, additional, Renou, Julien, additional, Yesou, Hervé, additional, Tarpanelli, Angelica, additional, Camici, Stefania, additional, Fredensborg Hansen, Renée Mie, additional, Nielsen, Karina, additional, Vivier, Frédéric, additional, Boy, François, additional, Fjørtoft, Roger, additional, Cancet, Mathilde, additional, Ferrari, Ramiro, additional, Picard, Ghislain, additional, Tourian, Mohammad J., additional, Sneeuw, Nicolaas, additional, Munesa, Eric, additional, Calzas, Michel, additional, Paris, Adrien, additional, Le Meur, Emmanuel, additional, Rabatel, Antoine, additional, Valladeau, Guillaume, additional, Bonnefond, Pascal, additional, Labroue, Sylvie, additional, Andersen, Ole, additional, El Hajj, Mahmoud, additional, Catapano, Filomena, additional, and Féménias, Pierre, additional

Published
2023
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8. Summer hydrography and circulation in Storfjorden, Svalbard, following a record low winter sea‐ice extent in the Barents Sea

Author

Vivier, Frédéric, Lourenço, Antonio, Michel, Elisabeth, Skogseth, Ragnheid, Rousset, Clément, Lansard, Bruno, Bouruet‐aubertot, Pascale, Boutin, Jacqueline, Bombled, Bruno, Cuypers, Yannis, Crispi, Olivier, Dausse, Dennis, Le Goff, Hervé, Madec, Gurvan, Vancoppenolle, Martin, Van Der Linden, Fanny, Waelbroeck, Claire, Vivier, Frédéric, Lourenço, Antonio, Michel, Elisabeth, Skogseth, Ragnheid, Rousset, Clément, Lansard, Bruno, Bouruet‐aubertot, Pascale, Boutin, Jacqueline, Bombled, Bruno, Cuypers, Yannis, Crispi, Olivier, Dausse, Dennis, Le Goff, Hervé, Madec, Gurvan, Vancoppenolle, Martin, Van Der Linden, Fanny, and Waelbroeck, Claire

Abstract

Storfjorden, Svalbard, hosts a polynya in winter and is an important source region of Brine-enriched Shelf Water (BSW) that, if dense enough, feeds the Arctic Ocean deep water reservoir. Changes in the BSW production may thus have far-reaching impacts. We analyze the water mass distribution and circulation in Storfjorden and the trough south of it, Storfjordrenna, using hydrographic sections occupied in July 2016, following a winter characterized by the lowest ice coverage recorded in the Barents Sea. These observations reveal an unusual hydrographic state, characterized at the surface by the near absence of Melt Water and Storfjorden Surface Water, replaced by a saltier water mass. At depth, BSW (maximum salinity of 34.95) was found from the bottom up to 90 m, above the 120-m deep sill at the mouth to Storfjordrenna. However, no gravity driven overflow was observed downstream of the sill: the dome of BSW remained locked over the depression in a cyclonic circulation pattern consistent with a stratified Taylor column. Observations further reveal a previously unreported intrusion of Atlantic Water far into the fjord, promoting isopycnal mixing with entrapped Arctic Water. This intrusion was possibly favored by positive wind stress curl anomalies over Svalbardbanken and Storfjordrenna. The bottom plume exiting Storfjordrenna was weak, carrying Polar Front Water rather than BSW, too light to sink underneath the Atlantic Water layer at Fram Strait. Whether Storfjorden switched durably to a new hydrographic state, following the observed Atlantification of the Barents Sea after 2005, remains to be established. Key Points Changes in the hydrography and circulation in Storfjorden a decade after a regime shift in the Barents Sea linked to its Atlantification The less saline Brine-enriched Shelf Water remained entrapped in Storfjorden within a cyclonic circulation pattern with no overflow Storfjorden was flooded with Atlantic Water, promoting isopycnal mixing with Arctic Water

Published
2023
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9. Towards Operational Fiducial Reference Measurement (FRM) Data for the Calibration and Validation of the Sentinel-3 Surface Topography Mission over Inland Waters, Sea Ice, and Land Ice

Author

Da Silva, Elodie, Woolliams, Emma R., Picot, Nicolas, Poisson, Jean Christophe, Skourup, Henriette, Moholdt, Geir, Fleury, Sara, Behnia, Sajedeh, Favier, Vincent, Arnaud, Laurent, Aublanc, Jérémie, Fouqueau, Valentin, Taburet, Nicolas, Renou, Julien, Yesou, Hervé, Tarpanelli, Angelica, Camici, Stefania, Fredensborg Hansen, Renée Mie, Nielsen, Karina, Vivier, Frédéric, Boy, François, Fjørtoft, Roger, Cancet, Mathilde, Ferrari, Ramiro, Picard, Ghislain, Tourian, Mohammad J., Sneeuw, Nicolaas, Munesa, Eric, Calzas, Michel, Paris, Adrien, Le Meur, Emmanuel, Rabatel, Antoine, Valladeau, Guillaume, Bonnefond, Pascal, Labroue, Sylvie, Andersen, Ole, El Hajj, Mahmoud, Catapano, Filomena, Féménias, Pierre, Da Silva, Elodie, Woolliams, Emma R., Picot, Nicolas, Poisson, Jean Christophe, Skourup, Henriette, Moholdt, Geir, Fleury, Sara, Behnia, Sajedeh, Favier, Vincent, Arnaud, Laurent, Aublanc, Jérémie, Fouqueau, Valentin, Taburet, Nicolas, Renou, Julien, Yesou, Hervé, Tarpanelli, Angelica, Camici, Stefania, Fredensborg Hansen, Renée Mie, Nielsen, Karina, Vivier, Frédéric, Boy, François, Fjørtoft, Roger, Cancet, Mathilde, Ferrari, Ramiro, Picard, Ghislain, Tourian, Mohammad J., Sneeuw, Nicolaas, Munesa, Eric, Calzas, Michel, Paris, Adrien, Le Meur, Emmanuel, Rabatel, Antoine, Valladeau, Guillaume, Bonnefond, Pascal, Labroue, Sylvie, Andersen, Ole, El Hajj, Mahmoud, Catapano, Filomena, and Féménias, Pierre

Abstract

The Copernicus Sentinel-3 Surface Topography Mission (STM) Land Altimetry provides valuable surface elevation information over inland waters, sea ice, and land ice, thanks to its synthetic aperture radar (SAR) altimeter and its orbit that covers high-latitude polar regions. To ensure that these measurements are reliable and to maximise the return on investment, adequate validation of the geophysical retrieval methods, processing algorithms, and corrections must be performed using independent observations. The EU-ESA project St3TART (started July 2021) aims to generalise the concept of Fiducial Reference Measurements (FRMs) for the Copernicus Sentinel-3 STM. This work has gathered existing data, made new observations during field campaigns, and ensured that these observations meet the criteria of FRM standards so that they can be used to validate Sentinel-3 STM Land Altimetry products operationally. A roadmap for the operational provision of the FRM, including the definition, consolidation, and identification of the most relevant and cost-effective methods and protocols to be maintained, supported, or implemented, has been developed. The roadmap includes guidelines for SI traceability, definitions of FRM measurement procedures, processing methods, and uncertainty budget estimations.

Published
2023

10. Tagging of water masses with covariance of trace metals and prokaryotic taxa in the Southern Ocean

Author

Zhang, Rui, Blain, Stéphane, Baudet, Corentin, Planquette, Helene, Vivier, Frédéric, Catala, Philippe, Crispi, Olivier, Guéneuguès, Audrey, Marie, Barbara, Debeljak, Pavla, Obernosterer, Ingrid, Zhang, Rui, Blain, Stéphane, Baudet, Corentin, Planquette, Helene, Vivier, Frédéric, Catala, Philippe, Crispi, Olivier, Guéneuguès, Audrey, Marie, Barbara, Debeljak, Pavla, and Obernosterer, Ingrid

Abstract

Marine microbes are strongly interrelated to trace metals in the ocean. How the availability of trace metals selects for prokaryotic taxa and the potential feedbacks of microbial processes on the trace metal distribution in the ocean remains poorly understood. We investigate here the potential reciprocal links between diverse prokaryotic taxa and iron (Fe), manganese (Mn), copper (Cu), Nickel (Ni) as well as apparent oxygen utilization (AOU) across 12 well-defined water masses in the Southern Indian Ocean (SWINGS-South West Indian Ocean GEOTRACES GS02 Section cruise). Applying Partial Least Square Regression (PLSR) analysis we show that the water masses are associated with particular latent vectors that are a combination of the spatial distribution of prokaryotic taxa, trace elements and AOU. This approach provides novel insights on the potential interactions between prokaryotic taxa and trace metals in relation to organic matter remineralization in distinct water masses of the ocean.

Published
2023
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11. Summer hydrography and circulation in Storfjorden, Svalbard, following a record low winter sea‐ice extent in the Barents Sea

Author

Vivier, Frédéric, primary, Lourenço, Antonio, additional, Michel, Elisabeth, additional, Skogseth, Ragnheid, additional, Rousset, Clément, additional, Lansard, Bruno, additional, Bouruet‐Aubertot, Pascale, additional, Boutin, Jacqueline, additional, Bombled, Bruno, additional, Cuypers, Yannis, additional, Crispi, Olivier, additional, Dausse, Dennis, additional, Le Goff, Hervé, additional, Madec, Gurvan, additional, Vancoppenolle, Martin, additional, Van der Linden, Fanny, additional, and Waelbroeck, Claire, additional

Published
2023
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14. INSITUDE: web-based collaborative platform for centralized oceanographic data reception, management, exploration, and analysis

Author

Khvorostyanov, Dmitry, primary, Champonnois, Victor, additional, Laupin-Vinatier, Alain, additional, Boutin, Jacqueline, additional, Reverdin, Gilles, additional, Lefèvre, Nathalie, additional, Lourenco, Antonio, additional, Lazar, Alban, additional, Charrassin, Jean-Benoit, additional, and Vivier, Frédéric, additional

Published
2022
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16. Green Edge ice camp campaigns: understanding the processes controlling the under-ice Arctic phytoplankton spring bloom

Author

Massicotte, Philippe, Amiraux, Rémi, Amyot, Marie-pier, Archambault, Philippe, Ardyna, Mathieu, Arnaud, Laurent, Artigue, Lise, Aubry, Cyril, Ayotte, Pierre, Bécu, Guislain, Bélanger, Simon, Benner, Ronald, Bittig, Henry C, Bricaud, Annick, Brossier, Eric, Bruyant, Flavienne, Chauvaud, Laurent, Christiansen-stowe, Debra, Claustre, Hervé, Cornet-barthaux, Véronique, Coupel, Pierre, Cox, Christine, Delaforge, Aurélie, Dezutter, Thibault, Dimier, Céline, Dominé, Florent, Dufour, Francis, Dufresne, Christiane, Dumont, Dany, Ehn, Jens, Else, Brent, Ferland, Joannie, Forget, Marie-hélène, Fortier, Louis, Gali, Marti, Galindo, Virginie, Gallinari, Morgane, Garcia, Nicole, Gerikas-ribeiro, Catherine, Gourdal, Margaux, Gourvil, Priscilla, Goyens, Clemence, Grondin, Pierre-luc, Guillot, Pascal, Guilmette, Caroline, Houssais, Marie-noëlle, Joux, Fabien, Lacour, Léo, Lacour, Thomas, Lafond, Augustin, Lagunas, José, Lalande, Catherine, Laliberté, Julien, Lambert-girard, Simon, Larivière, Jade, Lavaud, Johann, Lebaron, Anita, Leblanc, Karine, Le Gall, Florence, Legras, Justine, Lemire, Mélanie, Levasseur, Maurice, Leymarie, Edouard, Leynaert, Aude, Lopes Dos Santos, Adriana, Lourenço, Antonio, Mah, David, Marec, Claudie, Marie, Dominique, Martin, Nicolas, Marty, Constance, Marty, Sabine, Massé, Guillaume, Matsuoka, Atsushi, Matthes, Lisa, Moriceau, Brivaela, Muller, Pierre-emmanuel, Mundy, Christopher-john, Neukermans, Griet, Oziel, Laurent, Panagiotopoulos, Christos, Pangazi, Jean-jacques, Picard, Ghislain, Picheral, Marc, Pinczon Du Sel, France, Pogorzelec, Nicole, Probert, Ian, Queguiner, Bernard, Raimbault, Patrick, Ras, Joséphine, Rehm, Eric, Reimer, Erin, Rontani, Jean-françois, Rysgaard, Soren, Saint-béat, Blanche, Sampei, Makoto, Sansoulet, Julie, Schmidt, Sabine, Sempere, Richard, Sevigny, Caroline, Shen, Yuan, Tragin, Margot, Tremblay, Jean-eric, Vaulot, Daniel, Verin, Gauthier, Vivier, Frédéric, Vladoiu, Anda, Whitehead, Jeremy, Babin, Marcel, Massicotte, Philippe, Amiraux, Rémi, Amyot, Marie-pier, Archambault, Philippe, Ardyna, Mathieu, Arnaud, Laurent, Artigue, Lise, Aubry, Cyril, Ayotte, Pierre, Bécu, Guislain, Bélanger, Simon, Benner, Ronald, Bittig, Henry C, Bricaud, Annick, Brossier, Eric, Bruyant, Flavienne, Chauvaud, Laurent, Christiansen-stowe, Debra, Claustre, Hervé, Cornet-barthaux, Véronique, Coupel, Pierre, Cox, Christine, Delaforge, Aurélie, Dezutter, Thibault, Dimier, Céline, Dominé, Florent, Dufour, Francis, Dufresne, Christiane, Dumont, Dany, Ehn, Jens, Else, Brent, Ferland, Joannie, Forget, Marie-hélène, Fortier, Louis, Gali, Marti, Galindo, Virginie, Gallinari, Morgane, Garcia, Nicole, Gerikas-ribeiro, Catherine, Gourdal, Margaux, Gourvil, Priscilla, Goyens, Clemence, Grondin, Pierre-luc, Guillot, Pascal, Guilmette, Caroline, Houssais, Marie-noëlle, Joux, Fabien, Lacour, Léo, Lacour, Thomas, Lafond, Augustin, Lagunas, José, Lalande, Catherine, Laliberté, Julien, Lambert-girard, Simon, Larivière, Jade, Lavaud, Johann, Lebaron, Anita, Leblanc, Karine, Le Gall, Florence, Legras, Justine, Lemire, Mélanie, Levasseur, Maurice, Leymarie, Edouard, Leynaert, Aude, Lopes Dos Santos, Adriana, Lourenço, Antonio, Mah, David, Marec, Claudie, Marie, Dominique, Martin, Nicolas, Marty, Constance, Marty, Sabine, Massé, Guillaume, Matsuoka, Atsushi, Matthes, Lisa, Moriceau, Brivaela, Muller, Pierre-emmanuel, Mundy, Christopher-john, Neukermans, Griet, Oziel, Laurent, Panagiotopoulos, Christos, Pangazi, Jean-jacques, Picard, Ghislain, Picheral, Marc, Pinczon Du Sel, France, Pogorzelec, Nicole, Probert, Ian, Queguiner, Bernard, Raimbault, Patrick, Ras, Joséphine, Rehm, Eric, Reimer, Erin, Rontani, Jean-françois, Rysgaard, Soren, Saint-béat, Blanche, Sampei, Makoto, Sansoulet, Julie, Schmidt, Sabine, Sempere, Richard, Sevigny, Caroline, Shen, Yuan, Tragin, Margot, Tremblay, Jean-eric, Vaulot, Daniel, Verin, Gauthier, Vivier, Frédéric, Vladoiu, Anda, Whitehead, Jeremy, and Babin, Marcel

Abstract

The Green Edge initiative was developed to investigate the processes controlling the primary productivity and the fate of organic matter produced during the Arctic phytoplankton spring bloom (PSB) and to determine its role in the ecosystem. Two field campaigns were conducted in 2015 and 2016 at an ice camp located on landfast sea ice southeast of Qikiqtarjuaq Island in Baffin Bay (67.4797N, 63.7895W). During both expeditions, a large suite of physical, chemical and biological variables was measured beneath a consolidated sea ice cover from the surface to the bottom at 360 m depth to better understand the factors driving the PSB. Key variables such as temperature, salinity, radiance, irradiance, nutrient concentrations, chlorophyll-a concentration, bacteria, phytoplankton and zooplankton abundance and taxonomy, carbon stocks and fluxes were routinely measured at the ice camp. Here, we present the results of a joint effort to tidy and standardize the collected data sets that will facilitate their reuse in other Arctic studies. The dataset is available at http://www.seanoe.org/data/00487/59892/ (Massicotte et al., 2019a).

Published
2020
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17. Sea Ice CO2 Dynamics Across Seasons: Impact of Processes at the Interfaces

Author

Van Der Linden, Fanny, Tison, Jean-Louis, Champenois, W., Moreau, Sébastien, Carnat, Gauthier, Kotovitch, Marie, Fripiat, François, Deman, Florian, Roukaerts, Arnout, Dehairs, F., Wauthy, Sarah, Lourenço, A., Vivier, Frédéric, Haskell, T.G., Delille, B., Van Der Linden, Fanny, Tison, Jean-Louis, Champenois, W., Moreau, Sébastien, Carnat, Gauthier, Kotovitch, Marie, Fripiat, François, Deman, Florian, Roukaerts, Arnout, Dehairs, F., Wauthy, Sarah, Lourenço, A., Vivier, Frédéric, Haskell, T.G., and Delille, B.

Abstract

Winter to summer CO2 dynamics within landfast sea ice in McMurdo Sound (Antarctica) were investigated using bulk ice pCO2 measurements, air-snow-ice CO2 fluxes, dissolved inorganic carbon (DIC), total alkalinity (TA), and ikaite saturation state. Our results suggest depth-dependent biotic and abiotic controls that led us to discriminate the ice column in three layers. At the surface, winter pCO2 supersaturation drove CO2 release to the atmosphere while spring-summer pCO2 undersaturation led to CO2 uptake most of the time. CO2 fluxes showed a diel pattern superimposed upon this seasonal pattern which was potentially assigned to either ice skin freeze-thaw cycles or diel changes in net community production. In the ice interior, the pCO2 decrease across the season was driven by physical processes, mainly independent of the autotrophic and heterotrophic phases. Bottom sea ice was characterized by a massive biomass build-up counterintuitively associated with transient heterotrophic activity and nitrate plus nitrite accumulation. This inconsistency is likely related to the formation of a biofilm. This biofilm hosts both autotrophic and heterotrophic activities at the bottom of the ice during spring and may promote calcium carbonate precipitation., SCOPUS: ar.j, info:eu-repo/semantics/published

Published
2020

18. Saroma-ko Lagoon observations for sea ice physico-chemistry and ecosystems 2019 (SLOPE2019)

Author

Nomura, Daïki, Wongpan, Pat, Toyota, Takenobu, Tanikawa, Tomonori, Kawaguchi, Yusuke, Ono, Takashi, Ishino, Tomoni, Tozawa, Manami, Tamura, Tetsuya P, Yabe, Itsuka S, Son, Eun Yae, Vivier, Frédéric, Lourenço, Antonio, Lebrun, Marion, Nosaka, Yuichi, Hirawake, Toru, Ooki, Atshushi, Aoki, Shigeru, Else, Brent, Fripiat, François, Inoue, Jun, Vancoppenolle, Martin, Nomura, Daïki, Wongpan, Pat, Toyota, Takenobu, Tanikawa, Tomonori, Kawaguchi, Yusuke, Ono, Takashi, Ishino, Tomoni, Tozawa, Manami, Tamura, Tetsuya P, Yabe, Itsuka S, Son, Eun Yae, Vivier, Frédéric, Lourenço, Antonio, Lebrun, Marion, Nosaka, Yuichi, Hirawake, Toru, Ooki, Atshushi, Aoki, Shigeru, Else, Brent, Fripiat, François, Inoue, Jun, and Vancoppenolle, Martin

Abstract

info:eu-repo/semantics/published

Published
2020

19. Green Edge ice camp campaigns: understanding the processes controlling the under-ice Arctic phytoplankton spring bloom

Author

Massicotte, Philippe, primary, Amiraux, Rémi, additional, Amyot, Marie-Pier, additional, Archambault, Philippe, additional, Ardyna, Mathieu, additional, Arnaud, Laurent, additional, Artigue, Lise, additional, Aubry, Cyril, additional, Ayotte, Pierre, additional, Bécu, Guislain, additional, Bélanger, Simon, additional, Benner, Ronald, additional, Bittig, Henry C., additional, Bricaud, Annick, additional, Brossier, Éric, additional, Bruyant, Flavienne, additional, Chauvaud, Laurent, additional, Christiansen-Stowe, Debra, additional, Claustre, Hervé, additional, Cornet-Barthaux, Véronique, additional, Coupel, Pierre, additional, Cox, Christine, additional, Delaforge, Aurelie, additional, Dezutter, Thibaud, additional, Dimier, Céline, additional, Domine, Florent, additional, Dufour, Francis, additional, Dufresne, Christiane, additional, Dumont, Dany, additional, Ehn, Jens, additional, Else, Brent, additional, Ferland, Joannie, additional, Forget, Marie-Hélène, additional, Fortier, Louis, additional, Galí, Martí, additional, Galindo, Virginie, additional, Gallinari, Morgane, additional, Garcia, Nicole, additional, Gérikas Ribeiro, Catherine, additional, Gourdal, Margaux, additional, Gourvil, Priscilla, additional, Goyens, Clemence, additional, Grondin, Pierre-Luc, additional, Guillot, Pascal, additional, Guilmette, Caroline, additional, Houssais, Marie-Noëlle, additional, Joux, Fabien, additional, Lacour, Léo, additional, Lacour, Thomas, additional, Lafond, Augustin, additional, Lagunas, José, additional, Lalande, Catherine, additional, Laliberté, Julien, additional, Lambert-Girard, Simon, additional, Larivière, Jade, additional, Lavaud, Johann, additional, LeBaron, Anita, additional, Leblanc, Karine, additional, Le Gall, Florence, additional, Legras, Justine, additional, Lemire, Mélanie, additional, Levasseur, Maurice, additional, Leymarie, Edouard, additional, Leynaert, Aude, additional, Lopes dos Santos, Adriana, additional, Lourenço, Antonio, additional, Mah, David, additional, Marec, Claudie, additional, Marie, Dominique, additional, Martin, Nicolas, additional, Marty, Constance, additional, Marty, Sabine, additional, Massé, Guillaume, additional, Matsuoka, Atsushi, additional, Matthes, Lisa, additional, Moriceau, Brivaela, additional, Muller, Pierre-Emmanuel, additional, Mundy, Christopher-John, additional, Neukermans, Griet, additional, Oziel, Laurent, additional, Panagiotopoulos, Christos, additional, Pangrazi, Jean-Jacques, additional, Picard, Ghislain, additional, Picheral, Marc, additional, Pinczon du Sel, France, additional, Pogorzelec, Nicole, additional, Probert, Ian, additional, Quéguiner, Bernard, additional, Raimbault, Patrick, additional, Ras, Joséphine, additional, Rehm, Eric, additional, Reimer, Erin, additional, Rontani, Jean-François, additional, Rysgaard, Søren, additional, Saint-Béat, Blanche, additional, Sampei, Makoto, additional, Sansoulet, Julie, additional, Schmechtig, Catherine, additional, Schmidt, Sabine, additional, Sempéré, Richard, additional, Sévigny, Caroline, additional, Shen, Yuan, additional, Tragin, Margot, additional, Tremblay, Jean-Éric, additional, Vaulot, Daniel, additional, Verin, Gauthier, additional, Vivier, Frédéric, additional, Vladoiu, Anda, additional, Whitehead, Jeremy, additional, and Babin, Marcel, additional

Published
2020
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20. Green Edge ice camp campaigns: understanding the processes controlling the under-ice Arctic phytoplankton spring bloom

Author

Massicotte, Philippe, primary, Amiraux, Rémi, additional, Amyot, Marie-Pier, additional, Archambault, Philippe, additional, Ardyna, Mathieu, additional, Arnaud, Laurent, additional, Artigue, Lise, additional, Aubry, Cyril, additional, Ayotte, Pierre, additional, Bécu, Guislain, additional, Bélanger, Simon, additional, Benner, Ronald, additional, Bittig, Henry C., additional, Bricaud, Annick, additional, Brossier, Éric, additional, Bruyant, Flavienne, additional, Chauvaud, Laurent, additional, Christiansen-Stowe, Debra, additional, Claustre, Hervé, additional, Cornet-Barthaux, Véronique, additional, Coupel, Pierre, additional, Cox, Christine, additional, Delaforge, Aurelie, additional, Dezutter, Thibaud, additional, Dimier, Céline, additional, Dominé, Florent, additional, Dufour, Francis, additional, Dufresne, Christiane, additional, Dumont, Dany, additional, Ehn, Jens, additional, Else, Brent, additional, Ferland, Joannie, additional, Forget, Marie-Hélène, additional, Fortier, Louis, additional, Galí, Martí, additional, Galindo, Virginie, additional, Gallinari, Morgane, additional, Garcia, Nicole, additional, Gérikas-Ribeiro, Catherine, additional, Gourdal, Margaux, additional, Gourvil, Priscilla, additional, Goyens, Clemence, additional, Grondin, Pierre-Luc, additional, Guillot, Pascal, additional, Guilmette, Caroline, additional, Houssais, Marie-Noëlle, additional, Joux, Fabien, additional, Lacour, Léo, additional, Lacour, Thomas, additional, Lafond, Augustin, additional, Lagunas, José, additional, Lalande, Catherine, additional, Laliberté, Julien, additional, Lambert-Girard, Simon, additional, Larivière, Jade, additional, Lavaud, Johann, additional, Le Gall, Florence, additional, LeBaron, Anita, additional, Leblanc, Karine, additional, Legras, Justine, additional, Lemire, Mélanie, additional, Levasseur, Maurice, additional, Leymarie, Edouard, additional, Leynaert, Aude, additional, Lopes dos Santos, Adriana, additional, Lourenço, Antonio, additional, Mah, David, additional, Marec, Claudie, additional, Marie, Dominique, additional, Martin, Nicolas, additional, Marty, Constance, additional, Marty, Sabine, additional, Massé, Guillaume, additional, Matsuoka, Atsushi, additional, Matthes, Lisa, additional, Moriceau, Brivaela, additional, Muller, Pierre-Emmanuel, additional, Mundy, Christopher J., additional, Neukermans, Griet, additional, Oziel, Laurent, additional, Panagiotopoulos, Christos, additional, Pangazi, Jean-Jacques, additional, Picard, Ghislain, additional, Picheral, Marc, additional, Pinczon du Sel, France, additional, Pogorzelec, Nicole, additional, Probert, Ian, additional, Queguiner, Bernard, additional, Raimbault, Patrick, additional, Ras, Joséphine, additional, Rehm, Eric, additional, Reimer, Erin, additional, Rontani, Jean-François, additional, Rysgaard, Søren, additional, Saint-Béat, Blanche, additional, Sampei, Makoto, additional, Sansoulet, Julie, additional, Schmidt, Sabine, additional, Sempéré, Richard, additional, Sévigny, Caroline, additional, Shen, Yuan, additional, Tragin, Margot, additional, Tremblay, Jean-Éric, additional, Vaulot, Daniel, additional, Verin, Gauthier, additional, Vivier, Frédéric, additional, Vladoiu, Anda, additional, Whitehead, Jeremy, additional, and Babin, Marcel, additional

Published
2019
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21. Upper-ocean thermal variability controlled by ocean dynamics in the Kuroshio-Oyashio Extension region

Author

Pak, Gyundo, Park, Young-Hyang, Vivier, Frédéric, Bourdallé-Badie, Romain, Garric, Gilles, Chang, Kyung-Il, School of Earth and Environmental Sciences [Seoul] (SEES), Seoul National University [Seoul] (SNU), Austral, Boréal et Carbone (ABC), Laboratoire d'Océanographie et du Climat : Expérimentations et Approches Numériques (LOCEAN), Muséum national d'Histoire naturelle (MNHN)-Institut de Recherche pour le Développement (IRD)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Institut Pierre-Simon-Laplace (IPSL (FR_636)), École normale supérieure - Paris (ENS-PSL), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris Diderot - Paris 7 (UPD7)-École polytechnique (X)-Centre National d'Études Spatiales [Toulouse] (CNES)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-École normale supérieure - Paris (ENS-PSL), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris Diderot - Paris 7 (UPD7)-École polytechnique (X)-Centre National d'Études Spatiales [Toulouse] (CNES)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Muséum national d'Histoire naturelle (MNHN)-Institut de Recherche pour le Développement (IRD)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Institut Pierre-Simon-Laplace (IPSL (FR_636)), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris Diderot - Paris 7 (UPD7)-École polytechnique (X)-Centre National d'Études Spatiales [Toulouse] (CNES)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), Interactions et Processus au sein de la couche de Surface Océanique (IPSO), Mercator Océan, Société Civile CNRS Ifremer IRD Météo-France SHOM, Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER)-Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER), Institut de Recherche pour le Développement (IRD)-Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Muséum national d'Histoire naturelle (MNHN)-Institut Pierre-Simon-Laplace (IPSL (FR_636)), École normale supérieure - Paris (ENS Paris), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris Diderot - Paris 7 (UPD7)-École polytechnique (X)-Centre National d'Études Spatiales [Toulouse] (CNES)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-École normale supérieure - Paris (ENS Paris), and Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris Diderot - Paris 7 (UPD7)-École polytechnique (X)-Centre National d'Études Spatiales [Toulouse] (CNES)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Muséum national d'Histoire naturelle (MNHN)-Institut Pierre-Simon-Laplace (IPSL (FR_636))

Subjects
[SDU]Sciences of the Universe [physics], [PHYS.PHYS.PHYS-GEO-PH]Physics [physics]/Physics [physics]/Geophysics [physics.geo-ph], ComputingMilieux_MISCELLANEOUS
Abstract

International audience

Published
2017

23. The Louvain-La-Neuve sea ice model LIM3.6: global and regional capabilities

Author

rousset, clement, Vancoppenolle, Martin, Madec, Gurvan, Fichefet, Thierry, Flavoni, Simona, Barthélemy, Antoine, Benshila, Rachid, Chanut, Jérôme, Lévy, Claire, Masson, Sébastien, Vivier, Frédéric, Nucleus for European Modeling of the Ocean (NEMO R&D ), Laboratoire d'Océanographie et du Climat : Expérimentations et Approches Numériques (LOCEAN), Institut de Recherche pour le Développement (IRD)-Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Muséum national d'Histoire naturelle (MNHN)-Institut Pierre-Simon-Laplace (IPSL (FR_636)), École normale supérieure - Paris (ENS Paris), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris Diderot - Paris 7 (UPD7)-École polytechnique (X)-Centre National d'Études Spatiales [Toulouse] (CNES)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-École normale supérieure - Paris (ENS Paris), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris Diderot - Paris 7 (UPD7)-École polytechnique (X)-Centre National d'Études Spatiales [Toulouse] (CNES)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Muséum national d'Histoire naturelle (MNHN)-Institut Pierre-Simon-Laplace (IPSL (FR_636)), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris Diderot - Paris 7 (UPD7)-École polytechnique (X)-Centre National d'Études Spatiales [Toulouse] (CNES)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), Processus de couplage à Petite Echelle, Ecosystèmes et Prédateurs Supérieurs (PEPS), Centre Georges Lemaître for Earth and Climate Research [Louvain] (TECLIM), Earth and Life Institute [Louvain-La-Neuve] (ELI), Université Catholique de Louvain = Catholic University of Louvain (UCL)-Université Catholique de Louvain = Catholic University of Louvain (UCL), Laboratoire d'études en Géophysique et océanographie spatiales (LEGOS), Institut de Recherche pour le Développement (IRD)-Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire Midi-Pyrénées (OMP), Météo France-Centre National d'Études Spatiales [Toulouse] (CNES)-Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Météo France-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Centre National de la Recherche Scientifique (CNRS), Mercator Océan, Société Civile CNRS Ifremer IRD Météo-France SHOM, Interactions et Processus au sein de la couche de Surface Océanique (IPSO), Muséum national d'Histoire naturelle (MNHN)-Institut de Recherche pour le Développement (IRD)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Institut Pierre-Simon-Laplace (IPSL (FR_636)), École normale supérieure - Paris (ENS-PSL), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris Diderot - Paris 7 (UPD7)-École polytechnique (X)-Centre National d'Études Spatiales [Toulouse] (CNES)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-École normale supérieure - Paris (ENS-PSL), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris Diderot - Paris 7 (UPD7)-École polytechnique (X)-Centre National d'Études Spatiales [Toulouse] (CNES)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Muséum national d'Histoire naturelle (MNHN)-Institut de Recherche pour le Développement (IRD)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Institut Pierre-Simon-Laplace (IPSL (FR_636)), Université de Toulouse (UT)-Université de Toulouse (UT)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire Midi-Pyrénées (OMP), Université de Toulouse (UT)-Université de Toulouse (UT)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France -Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France -Centre National de la Recherche Scientifique (CNRS), Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER)-Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER), ANR-09-BLAN-0227,OPTIMISM(2009), and European Project: 283367,EC:FP7:SPA,FP7-SPACE-2011-1,MYOCEAN2(2012)

Subjects
lcsh:Geology, lcsh:QE1-996.5, [PHYS.PHYS.PHYS-GEO-PH]Physics [physics]/Physics [physics]/Geophysics [physics.geo-ph]
Abstract

International audience; The new 3.6 version of the Louvain-la-Neuve sea ice model (LIM) is presented, as integrated in the most recent stable release of Nucleus for European Modelling of the Ocean (NEMO) (3.6). The release will be used for the next Climate Model Inter-comparison Project (CMIP6). Developments focussed around three axes: improvements of robustness, versatility and sophistication of the code, which involved numerous changes. Robustness was improved by enforcing exact conservation through the inspection of the different processes driving the air–ice–ocean exchanges of heat, mass and salt. Versatility was enhanced by implementing lateral boundary conditions for sea ice and more flexible ice thickness categories. The latter includes a more practical computation of category boundaries, parameterizations to use LIM3.6 with a single ice category and a flux redistributor for coupling with atmospheric models that cannot handle multiple sub-grid fluxes. Sophistication was upgraded by including the effect of ice and snow weight on the sea surface. We illustrate some of the new capabilities of the code in two standard simulations. One is an ORCA2-LIM3 global simulation at a nominal 2° resolution, forced by reference atmospheric climatologies. The other one is a regional simulation at 2 km resolution around the Svalbard Archipelago in the Arctic Ocean, with open boundaries and tides. We show that the LIM3.6 forms a solid and flexible base for future scientific studies and model developments.

Published
2015

24. Thermodynamics of slush and snow–ice formation in the Antarctic sea-ice zone

Author

Jutras, Mathilde, Vancoppenolle, Martin, Lourenço, Antonio, Vivier, Frédéric, Carnat, Gauthier, Madec, Gurvan, Rousset, Clément, Tison, Jean-Louis, Jutras, Mathilde, Vancoppenolle, Martin, Lourenço, Antonio, Vivier, Frédéric, Carnat, Gauthier, Madec, Gurvan, Rousset, Clément, and Tison, Jean-Louis

Abstract

Snow over Antarctic sea ice is often flooded by brine or seawater, particularly in spring, forming slush and snow ice. Here, we evaluate the representation of the thermodynamics of slush and snow–ice formation in large-scale sea-ice models, using laboratory experiments (NaCl solutions poured into grated ice in an isolated container). Scaling analysis highlights latent heat as the main term of the energy budget. The temperature of the new sea ice immediately after flooding is found very close to the saltwater freezing point, whereas its bulk salinity is typically >20g/kg. Large-scale sea-ice models faithfully represent such physics, yet the uncertainty on the origin of flooding saltwater impacts the calculated new ice temperature, because of the different salinities of seawater and brine. The laboratory experiments also suggest a potential limitation to the existing physical representations of flooding: for brine fractions >60%, ice crystals start floating upon saltwater. Natural sea-ice observations suggest that the isolated system assumption holds for a few hours at most, after which rapid heat and salt exchanges mostly destroy the initial flooding signature on temperature and salinity. A small footprint on ice salinity remains however, natural snow ice is found 3–5 g/kg more saline than other forms of sea ice., SCOPUS: ar.j, info:eu-repo/semantics/published

Published
2016

25. Ice production in Storfjorden (Svalbard) estimated from a model based on AMSR-E observations: Impact on water mass properties

Author

Jardon, Fernanda, Vivier, Frédéric, Bouruet-Aubertot, Pascale, Lourenço, Antonio, Cuypers, Yannis, Willmes, S., Laboratoire d'Océanographie et du Climat : Expérimentations et Approches Numériques (LOCEAN), Muséum national d'Histoire naturelle (MNHN)-Institut de Recherche pour le Développement (IRD)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Institut Pierre-Simon-Laplace (IPSL (FR_636)), École normale supérieure - Paris (ENS-PSL), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris Diderot - Paris 7 (UPD7)-École polytechnique (X)-Centre National d'Études Spatiales [Toulouse] (CNES)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-École normale supérieure - Paris (ENS-PSL), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris Diderot - Paris 7 (UPD7)-École polytechnique (X)-Centre National d'Études Spatiales [Toulouse] (CNES)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), Interactions et Processus au sein de la couche de Surface Océanique (IPSO), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris Diderot - Paris 7 (UPD7)-École polytechnique (X)-Centre National d'Études Spatiales [Toulouse] (CNES)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Muséum national d'Histoire naturelle (MNHN)-Institut de Recherche pour le Développement (IRD)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Institut Pierre-Simon-Laplace (IPSL (FR_636)), Développement Instrumental et Techniques Marines (DITM), Institut de Recherche pour le Développement (IRD)-Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Muséum national d'Histoire naturelle (MNHN)-Institut Pierre-Simon-Laplace (IPSL (FR_636)), École normale supérieure - Paris (ENS Paris), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris Diderot - Paris 7 (UPD7)-École polytechnique (X)-Centre National d'Études Spatiales [Toulouse] (CNES)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-École normale supérieure - Paris (ENS Paris), and Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris Diderot - Paris 7 (UPD7)-École polytechnique (X)-Centre National d'Études Spatiales [Toulouse] (CNES)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Muséum national d'Histoire naturelle (MNHN)-Institut Pierre-Simon-Laplace (IPSL (FR_636))

Subjects
supercooling water, ice production model, [SDU.STU.GP]Sciences of the Universe [physics]/Earth Sciences/Geophysics [physics.geo-ph], [PHYS.PHYS.PHYS-GEO-PH]Physics [physics]/Physics [physics]/Geophysics [physics.geo-ph], AMSR-E satellite observations, Storfjorden, brine enriched shelf water, polynya area
Abstract

International audience; Storfjorden, which hosts a latent heat polynya, is a well known region of dense water formation. This Brine-enriched Shelf Water (BSW) displays substantial year to year variability in its properties, which is partly linked to interannual variations in ice production. Here we have developed a model based on high-resolution AMSR-E satellite sea-ice concentration data, available between 2002 and 2011, and atmospheric forcing to estimate the ice production in the polynya and associated salt release. The average modeled ice production for the epoch 2002-2011 is 47 km3 per year, corresponding to a salt release of 1200 × 109 kg. The two most anomalous winters were 2004-2005 (salt deficit of -367 × 109 kg) and 2007-2008 (salt excess of 398 × 109 kg). Available observations of BSW properties are relatively scarce during this period and are here augmented with data collected in March 2007 from an ice-tethered mooring to the northwest of the fjord. BSW was found up to the surface, with maximum salinity and density of 35.27 and 28.4 kg m-3, respectively, at 55 m. In addition, supercooled water was found down to 10 m under relatively mild atmospheric conditions. It is shown to have formed a week before, during an intense frazil ice formation episode, exceeding 2 km3 of frazil ice according to the model. Although observations remain too few to robustly assess the relation between ice production and BSW properties, there is suggestion of a direct impact for most anomalous years. The exceptional ice production in 2007-2008 is most likely the cause of the very saline BSW in 2008 and strong plume of dense water toward Fram Strait reported by other authors. Anomalous ice production appears predominantly driven by the duration of the freezing season and anomalous opening of the polynya.

Published
2014

28. Year Round Survey of Ocean-Sea Ice-Air Exchanges – the YROSIAE survey

Author

SOLAS Open Science Conference 2015 (2015: Kiel, Germany), Delille, B., Van Der Linden, Fanny, Fripiat, François, Champenois, Willy, Heinesch, Bernard, Zhou, Jiayun, Schoemann, Véronique, Carnat, Gauthier, Moreau, Sébastien, Vivier, Frédéric, Lourenço, Antonio, Kotovitch, Marie, Haskell, T.G., Tison, Jean-Louis, SOLAS Open Science Conference 2015 (2015: Kiel, Germany), Delille, B., Van Der Linden, Fanny, Fripiat, François, Champenois, Willy, Heinesch, Bernard, Zhou, Jiayun, Schoemann, Véronique, Carnat, Gauthier, Moreau, Sébastien, Vivier, Frédéric, Lourenço, Antonio, Kotovitch, Marie, Haskell, T.G., and Tison, Jean-Louis

Abstract

info:eu-repo/semantics/published

Published
2015

29. High resolution ice-ocean simulation of the Storfjorden polynya in Svalbard

Author

Rousset, Clément, Vivier, Frédéric, Vancoppenolle, Martin, Benshila, Rachid, Madec, Gurvan, Bouruet-Aubertot, Pascale, Cuypers, Yannis, Lourenço, Antonio, Le Goff, Hervé, Laboratoire d'Océanographie et du Climat : Expérimentations et Approches Numériques (LOCEAN), Muséum national d'Histoire naturelle (MNHN)-Institut de Recherche pour le Développement (IRD)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Institut Pierre-Simon-Laplace (IPSL (FR_636)), École normale supérieure - Paris (ENS-PSL), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris Diderot - Paris 7 (UPD7)-École polytechnique (X)-Centre National d'Études Spatiales [Toulouse] (CNES)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-École normale supérieure - Paris (ENS-PSL), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris Diderot - Paris 7 (UPD7)-École polytechnique (X)-Centre National d'Études Spatiales [Toulouse] (CNES)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), Échanges dans la couche de surface : des pôles aux tropiques (SURF), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris Diderot - Paris 7 (UPD7)-École polytechnique (X)-Centre National d'Études Spatiales [Toulouse] (CNES)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Muséum national d'Histoire naturelle (MNHN)-Institut de Recherche pour le Développement (IRD)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Institut Pierre-Simon-Laplace (IPSL (FR_636)), Développement Instrumental et Techniques Marines (DITM), Institut de Recherche pour le Développement (IRD)-Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Muséum national d'Histoire naturelle (MNHN)-Institut Pierre-Simon-Laplace (IPSL (FR_636)), École normale supérieure - Paris (ENS Paris), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris Diderot - Paris 7 (UPD7)-École polytechnique (X)-Centre National d'Études Spatiales [Toulouse] (CNES)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-École normale supérieure - Paris (ENS Paris), and Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris Diderot - Paris 7 (UPD7)-École polytechnique (X)-Centre National d'Études Spatiales [Toulouse] (CNES)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Muséum national d'Histoire naturelle (MNHN)-Institut Pierre-Simon-Laplace (IPSL (FR_636))

Subjects
[SDU.STU.GP]Sciences of the Universe [physics]/Earth Sciences/Geophysics [physics.geo-ph], [SDE.MCG]Environmental Sciences/Global Changes, [PHYS.PHYS.PHYS-GEO-PH]Physics [physics]/Physics [physics]/Geophysics [physics.geo-ph]
Abstract

International audience; Owing to the predicted and already observed dramatic impact of climate warming in the Arctic, there is a great need for monitoring this region not only to assess the magnitude of changes but also to understand the physical processes governing heat, salt and dynamical exchanges between ocean, ice and atmosphere, with improvement of climate models predictability as a challenging perspective. OPTIMISM (Observing dynamical and thermodynamical Processes impacting The sea-Ice Mass balance from In Situ Measurements) is a 4-year ANR/IPEV-funded project (2009-2013) involving 5 French laboratories . A backbone aspect of this project is the development of an autonomous instrument ("Ice-T" buoy + "BEAR" meteo mast), providing a comprehensive observation of the relevant parameters driving the sea ice mass balance. Processes are investigated from observations collected at two main sites: the central Arctic, and a coastal polynya of the Svalbard archipelago. A complementary approach , yet an ongoing task, is to build up a high resolution (

Published
2013

30. Circulation and hydrography over the Kerguelen Plateau

Author

Park, Young-Hyang and Vivier, Frédéric

Abstract

The Kerguelen Plateau is the largest near-meridional submarine plateau lying across the Antarctic Circumpolar Current (ACC), affecting significantly the large-scale circulation and pathways of the different water masses across the plateau. This has important implication not only for the local primary productivity and marine ecosystem, but also for the meridional overturning circulation of the Southern Ocean. We give here a short review of the circulation and hydrography as well as the ACC transport over and around the Kerguelen Plateau.

Published
2011
Full Text
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32. The French contribution to the atmospheric and cryospheric component of an Arctic Observatory

Author

Jacobi, Hans-Werner, Ciais, Philippe, Gascard, Jean-Claude, Law, Kathy S., Masson-Delmotte, Valérie, Paris, Jean-Daniel, Delmotte, Marc, Lavric, J.-V., Ancellet, Gérard, Ritz, Catherine, Gallée, H., Dommergue, A., Vivier, Frédéric, Weill, Alain, Huret, Nathalie, Payan, Sébastien, Laboratoire de glaciologie et géophysique de l'environnement (LGGE), Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire des Sciences de l'Univers de Grenoble (OSUG), Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut national des sciences de l'Univers (INSU - CNRS)-Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Centre National de la Recherche Scientifique (CNRS)-Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Centre National de la Recherche Scientifique (CNRS), Laboratoire des Sciences du Climat et de l'Environnement [Gif-sur-Yvette] (LSCE), Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ), Austral, Boréal et Carbone (ABC), Laboratoire d'Océanographie et du Climat : Expérimentations et Approches Numériques (LOCEAN), Institut de Recherche pour le Développement (IRD)-Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Muséum national d'Histoire naturelle (MNHN)-Institut Pierre-Simon-Laplace (IPSL (FR_636)), École normale supérieure - Paris (ENS Paris), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris Diderot - Paris 7 (UPD7)-École polytechnique (X)-Centre National d'Études Spatiales [Toulouse] (CNES)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-École normale supérieure - Paris (ENS Paris), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris Diderot - Paris 7 (UPD7)-École polytechnique (X)-Centre National d'Études Spatiales [Toulouse] (CNES)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Muséum national d'Histoire naturelle (MNHN)-Institut Pierre-Simon-Laplace (IPSL (FR_636)), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris Diderot - Paris 7 (UPD7)-École polytechnique (X)-Centre National d'Études Spatiales [Toulouse] (CNES)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), TROPO - LATMOS, Laboratoire Atmosphères, Milieux, Observations Spatiales (LATMOS), Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de physique et chimie de l'environnement (LPCE), Université d'Orléans (UO)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Physique Moleculaire pour l'Atmosphere et l'Astrophysique (LPMAA), Université Pierre et Marie Curie - Paris 6 (UPMC)-Centre National de la Recherche Scientifique (CNRS), Observatoire des Sciences de l'Univers de Grenoble (OSUG), Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP)-Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA)-Université Joseph Fourier - Grenoble 1 (UJF)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP)-Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA)-Université Joseph Fourier - Grenoble 1 (UJF)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA)-Centre National de la Recherche Scientifique (CNRS), Université Paris-Saclay-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Centre National de la Recherche Scientifique (CNRS), Institut de Recherche pour le Développement (IRD)-Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Muséum national d'Histoire naturelle (MNHN)-Institut de Recherche pour le Développement (IRD)-Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Muséum national d'Histoire naturelle (MNHN), Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ), Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut national des sciences de l'Univers (INSU - CNRS)-Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Centre National de la Recherche Scientifique (CNRS)-Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut national des sciences de l'Univers (INSU - CNRS)-Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS), Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS), Muséum national d'Histoire naturelle (MNHN)-Institut de Recherche pour le Développement (IRD)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Institut Pierre-Simon-Laplace (IPSL (FR_636)), École normale supérieure - Paris (ENS-PSL), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris Diderot - Paris 7 (UPD7)-École polytechnique (X)-Centre National d'Études Spatiales [Toulouse] (CNES)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-École normale supérieure - Paris (ENS-PSL), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris Diderot - Paris 7 (UPD7)-École polytechnique (X)-Centre National d'Études Spatiales [Toulouse] (CNES)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Muséum national d'Histoire naturelle (MNHN)-Institut de Recherche pour le Développement (IRD)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Institut Pierre-Simon-Laplace (IPSL (FR_636)), ESTER - LATMOS, Institut national des sciences de l'Univers (INSU - CNRS)-Université d'Orléans (UO)-Centre National de la Recherche Scientifique (CNRS), and Francois, Francoise

Subjects
[PHYS.PHYS.PHYS-AO-PH]Physics [physics]/Physics [physics]/Atmospheric and Oceanic Physics [physics.ao-ph], [PHYS.PHYS.PHYS-AO-PH] Physics [physics]/Physics [physics]/Atmospheric and Oceanic Physics [physics.ao-ph]
Published
2010

34. Observation of two transient episodes in an Arctic Coastal Polynya in late winter: Supercooled water and sea ice desalination

Author

Jardon, Fernanda, Vivier, Frédéric, Bouruet-Aubertot, Pascale, Lourenço, Antonio, Cuypers, Yannis, Laboratoire d'Océanographie et du Climat : Expérimentations et Approches Numériques (LOCEAN), Muséum national d'Histoire naturelle (MNHN)-Institut de Recherche pour le Développement (IRD)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Institut Pierre-Simon-Laplace (IPSL (FR_636)), École normale supérieure - Paris (ENS-PSL), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris Diderot - Paris 7 (UPD7)-École polytechnique (X)-Centre National d'Études Spatiales [Toulouse] (CNES)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-École normale supérieure - Paris (ENS-PSL), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris Diderot - Paris 7 (UPD7)-École polytechnique (X)-Centre National d'Études Spatiales [Toulouse] (CNES)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), and AGU

Subjects
0750 CRYOSPHERE / Sea ice, 0770 CRYOSPHERE / Properties, [SDU]Sciences of the Universe [physics], 0752 CRYOSPHERE / Polynas, 0766 CRYOSPHERE / Thermodynamics
Abstract

International audience; Coastal Arctic polynyas play an important role in forming dense water and contribute to the deep ocean ventilation. Dense water formation results from brine rejection associated with sea-ice production. In March 2007, a 60m-long ice tethered mooring, recording temperature and salinity at high frequency with a relatively fine vertical resolution and a prototype float (Ice-T) measuring ice-thickness and thermal profiles in sea ice were deployed in Storfjorden in the Svalbard archipelago. This fjord hosts a latent heat polynya which is maintained open under northeasterly wind conditions. The water masses analysis reveals that the main pool of the fjord is occupied by Brine-enriched Shelf Water (BSW) over the whole water column, while the southwest part of the fjord is occupied by Arctic Water (ArW). The BSW recorded at the bottom of the mooring has a salinity of 35.2 (density of 28.31 kg m-3), which is among the densest values of BSW reported in this region in the literature. Measurements indicate that the water column is slightly supercooled down to 30m for the first day of the record until a warm storm breaks the ice. Maximum supercooling values are 0.007±0.002°C below the in-situ freezing point with a mean value of 0.005±0.002°C at 10m. The origin of this supercooled water is investigated by analyzing the ice cover and the ocean-atmosphere heat flux during the days that preceded these observations. Although the amount of supercooling is relatively low compared with values recently reported in Storfjorden, these observations show that supercooled water can still be present under the ice several days after the cooling and freezing period. A sudden and brief salinity anomaly reaching 0.2 ppt is observed at the base of the ice. Concomitant temperature anomalies are recorded in the sea ice. The origin of this signal, which occurs during a warm storm, is analyzed. As this salinity anomaly cannot be associated with ice formation, different sea ice desalination processes are investigated, in particular flushing by meltwater and gravity drainage.

Published
2009

35. Quasi-stationary ENSO wave signals versus the Antarctic Circumpolar Wave scenario

Author

Park, Young-Hyang, Roquet, Fabien, Vivier, Frédéric, Biodiversité et dynamique des populations aquatiques, Laboratoire d'océanographie dynamique et de climatologie (LODYC), and Institut de Recherche pour le Développement (IRD)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Centre National de la Recherche Scientifique (CNRS)

Subjects
[PHYS.PHYS.PHYS-GEO-PH]Physics [physics]/Physics [physics]/Geophysics [physics.geo-ph]
Published
2004

36. Three-dimensional modelling of ocean electrodynamics using gauged potentials

Author

Tyler, Robert H., Vivier, Frédéric, Li, Shenghui, Ocean Physics Department, Applied Physics Laboratory, University of Washington [Seattle], Laboratoire d'océanographie dynamique et de climatologie (LODYC), Institut de Recherche pour le Développement (IRD)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Centre National de la Recherche Scientifique (CNRS), and Centre National de la Recherche Scientifique (CNRS)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut de Recherche pour le Développement (IRD)

Subjects
[SDU.STU.GP]Sciences of the Universe [physics]/Earth Sciences/Geophysics [physics.geo-ph], [PHYS.PHYS.PHYS-GEO-PH]Physics [physics]/Physics [physics]/Geophysics [physics.geo-ph]
Published
2004

37. First Observations of Energy Budget and Bulk Fluxes at Ny Ålesund (Svalbard) during a 2010 Transition Period as Analyzed with the BEAR Station

Author

Weill, Alain, primary, Eymard, Laurence, additional, Vivier, Frédéric, additional, Matulka, Ania, additional, Loisil, Rodrigue, additional, Amarouche, Nadir, additional, Panel, Jean Michel, additional, Lourenço, Antonio, additional, Viola, Angelo, additional, Vitale, Vito, additional, Argentini, Stefania, additional, and Kupfer, Heike, additional

Published
2012
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38. An anticyclonic circulation above the Northwest Georgia Rise, Southern Ocean

Author

Meredith, Michael P., Watkins, Jon L., Murphy, Eugene J., Cunningham, Nathan J., Wood, Andrew G., Korb, Rebecca, Whitehouse, Mick J., Thorpe, Sally E., Vivier, Frédéric, Meredith, Michael P., Watkins, Jon L., Murphy, Eugene J., Cunningham, Nathan J., Wood, Andrew G., Korb, Rebecca, Whitehouse, Mick J., Thorpe, Sally E., and Vivier, Frédéric

Abstract

Data from a variety of sources reveal a warm-core anticyclonic circulation above the Northwest Georgia Rise (NWGR), an similar to2000-m high bathymetric feature north of South Georgia. The sense of the circulation is opposite to the general cyclonic flow in the Georgia Basin. The circulation shows the characteristics of a stratified Taylor column: dimensional analysis shows that the local bathymetry and hydrography are conducive to the formation of such. ERS2 altimeter data show that the column, whilst not fully permanent, is nonetheless a recurring feature. High concentrations of chlorophyll-a are observed at the centre of the circulation, indicating that the modulation of the physical environment has significant consequences for the local biogeochemical system via enhanced primary production. Enhanced chlorophyll-a extends in a long plume from the NWGR along pathways indicated by drifters; this passive redistribution may have consequences for the larger (basin-) scale ecosystem.

Published
2003

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