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| Pizarro-koch, Matias; Pizarro, Oscar; Dewitte, Boris; Montes, Ivonne; Ramos, Marcel; Paulmier, Aurelien; Garcon, Veronique. |
| We investigate the seasonal variability of the southern tip (30 degrees-38 degrees S) of the eastern South Pacific oxygen minimum zone (OMZ) based on a high horizontal resolution (1/12 degrees) regional coupled physical-biogeochemical model simulation. The simulation is validated by available in situ observations and the OMZ seasonal variability is documented. The model OMZ, bounded by the contour of 45 mu M, occupies a large volume (4.5x10(4) km(3)) during the beginning of austral winter and a minimum (3.5x10(4) km(3)) at the end of spring, just 1 and 2 months after the southward transport of the Peru-Chile Undercurrent (PCUC) is maximum and minimum, respectively. We showed that the PCUC significantly impacts the alongshore advection of dissolved oxygen... |
| Tipo: Text |
Palavras-chave: Oxygen minimum zone; Eddy fluxes; Peru-Chile Undercurrent; Oxygen budget; Eastern South Pacific. |
| Ano: 2019 |
URL: https://archimer.ifremer.fr/doc/00688/79991/82948.pdf |
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| Montes, Ivonne; Dewitte, Boris; Gutknecht, Elodie; Paulmier, Aurelien; Dadou, Isabelle; Oschlies, Andreas; Garcon, Veronique. |
| The connection between the equatorial mean circulation and the oxygen minimum zone (OMZ) in the Eastern Tropical Pacific is investigated through sensitivity experiments with a high-resolution coupled physical-biogeochemical model. A validation against in situ observations indicates a realistic simulation of the vertical and horizontal oxygen distribution by the model. Two sets of climatological open-boundary conditions for the physical variables, which differ slightly with respect to the intensity and vertical structure of the Equatorial Current System, are shown to lead to contrasting characteristics of the simulated OMZ dynamics. From a Lagrangian perspective, the mean differences near the coast originate to a large extent from the different transport of... |
| Tipo: Text |
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| Ano: 2014 |
URL: https://archimer.ifremer.fr/doc/00688/79998/82951.pdf |
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| Bretagnon, Marine; Paulmier, Aurelien; Garcon, Veronique; Dewitte, Boris; Illig, Serena; Leblond, Nathalie; Coppola, Laurent; Campos, Fernando; Velazco, Federico; Panagiotopoulos, Christos; Oschlies, Andreas; Martin Hernandez-ayon, J.; Maske, Helmut; Vergara, Oscar; Montes, Ivonne; Martinez, Philippe; Carrasco, Edgardo; Grelet, Jacques; Desprez-de-gesincourt, Olivier; Maes, Christophe; Scouarnec, Lionel. |
| The fate of the organic matter (OM) produced by marine life controls the major biogeochemical cycles of the Earth's system. The OM produced through photosynthesis is either preserved, exported towards sediments or degraded through remineralisation in the water column. The productive eastern boundary upwelling systems (EBUSs) associated with oxygen minimum zones (OMZs) would be expected to foster OM preservation due to low O-2 conditions. But their intense and diverse microbial activity should enhance OM degradation. To investigate this contradiction, sediment traps were deployed near the oxycline and in the OMZ core on an instrumented moored line off Peru. Data provided high-temporal-resolution O-2 series characterising two seasonal steady states at the... |
| Tipo: Text |
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| Ano: 2018 |
URL: https://archimer.ifremer.fr/doc/00486/59764/62889.pdf |
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| Von Schuckmann, Karina; Le Traon, Pierre-yves; Alvarez-fanjul, Enrique; Axell, Lars; Balmaseda, Magdalena; Breivik, Lars-anders; Brewin, Robert J. W.; Bricaud, Clement; Drevillon, Marie; Drillet, Yann; Dubois, Clotilde; Embury, Owen; Etienne, Helene; Garcia Sotillo, Marcos; Garric, Gilles; Gasparin, Florent; Gutknecht, Elodie; Guinehut, Stephanie; Hernandez, Fabrice; Juza, Melanie; Karlson, Bengt; Korres, Gerasimos; Legeais, Jean Francois; Levier, Bruno; Lien, Vidar S.; Morrow, Rosemary; Notarstefano, Giulio; Parent, Laurent; Pascual, Alvaro; Perez-gomez, Begona; Perruche, Coralie; Pinardi, Nadia; Pisano, Andrea; Poulain, Pierre-marie; Pujol, Isabelle M.; Raj, Roshin P.; Raudsepp, Urmas; Roquet, Herve; Samuelsen, Annette; Sathyendranath, Shubha; She, Jun; Simoncelli, Simona; Solidoro, Cosimo; Tinker, Jonathan; Tintore, Joaquin; Viktorsson, Lena; Ablain, Michael; Almroth-rosell, Elin; Bonaduce, Antonio; Clementi, Emanuela; Cossarini, Gianpiero; Dagneaux, Quentin; Desportes, Charles; Dye, Stephen; Fratianni, Claudia; Good, Simon; Greiner, Eric; Gourrion, Jerome; Hamon, Mathieu; Holt, Jason; Hyder, Pat; Kennedy, John; Manzano-munoz, Fernando; Melet, Angelique; Meyssignac, Benoit; Mulet, Sandrine; Nardelli, Bruno Buongiorno; O'Dea, Enda; Olason, Einar; Paulmier, Aurelien; Perez-gonzalez, Irene; Reid, Rebecca; Racault, Marie-fanny; Raitsos, Dionysios E.; Ramos, Antonio; Sykes, Peter; Szekely, Tanguy; Verbrugge, Nathalie. |
| The Copernicus Marine Environment Monitoring Service (CMEMS) Ocean State Report (OSR) provides an annual report of the state of the global ocean and European regional seas for policy and decision-makers with the additional aim of increasing general public awareness about the status of, and changes in, the marine environment. The CMEMS OSR draws on expert analysis and provides a 3-D view (through reanalysis systems), a view from above (through remote-sensing data) and a direct view of the interior (through in situ measurements) of the global ocean and the European regional seas. The report is based on the unique CMEMS monitoring capabilities of the blue (hydrography, currents), white (sea ice) and green (e.g. Chlorophyll) marine environment. This first... |
| Tipo: Text |
Palavras-chave: Copernicus Marine Environment Monitoring Service; Ocean reporting; Ocean monitoring; State of the ocean; Ocean variability; Operational oceanography; Ocean climate variability. |
| Ano: 2016 |
URL: https://archimer.ifremer.fr/doc/00383/49471/49959.pdf |
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| Von Schuckmann, Karina; Le Traon, Pierre-yves; Smith, Neville; Pascual, Ananda; Brasseur, Pierre; Fennel, Katja; Djavidnia, Samy; Aaboe, Signe; Alvarez Fanjul, Enrique; Autret, Emmanuelle; Axell, Lars; Aznar, Roland; Benincasa, Mario; Bentamy, Abderrahim; Boberg, Fredrik; Bourdalle-badie, Romain; Nardelli, Bruno Buongiorno; Brando, Vittorio E.; Bricaud, Clement; Breivik, Lars-anders; Brewin, Robert J. W.; Capet, Arthur; Ceschin, Adrien; Ciliberti, Stefania; Cossarini, Gianpiero; De Alfonso, Marta; De Pascual Collar, Alvaro; De Kloe, Jos; Deshayes, Julie; Desportes, Charles; Drevillon, Marie; Drillet, Yann; Droghei, Riccardo; Dubois, Clotilde; Embury, Owen; Etienne, Helene; Fratianni, Claudia; Garcia Lafuente, Jesus; Garcia Sotillo, Marcos; Garric, Gilles; Gasparin, Florent; Gerin, Riccardo; Good, Simon; Gourrion, Jerome; Gregoire, Marilaure; Greiner, Eric; Guinehut, Stephanie; Gutknecht, Elodie; Hernandez, Fabrice; Hernandez, Olga; Hoyer, Jacob; Jackson, Laura; Jandt, Simon; Josey, Simon; Juza, Melanie; Kennedy, John; Kokkini, Zoi; Korres, Gerasimos; Kouts, Mariliis; Lagemaa, Priidik; Lavergne, Thomas; Le Cann, Bernard; Legeais, Jean-francois; Lemieux-dudon, Benedicte; Levier, Bruno; Lien, Vidar; Maljutenko, Ilja; Manzano, Fernando; Marcos, Marta; Marinova, Veselka; Masina, Simona; Mauri, Elena; Mayer, Michael; Melet, Angelique; Melin, Frederic; Meyssignac, Benoit; Monier, Maeva; Muller, Malte; Mulet, Sandrine; Naranjo, Cristina; Notarstefano, Giulio; Paulmier, Aurelien; Perez Gomez, Begona; Perez Gonzalez, Irene; Peneva, Elisaveta; Perruche, Coralie; Peterson, K. Andrew; Pinardi, Nadia; Pisano, Andrea; Pardo, Silvia; Poulain, Pierre-marie; Raj, Roshin P.; Raudsepp, Urmas; Ravdas, Michaelis; Reid, Rebecca; Rio, Marie-hélène; Salon, Stefano; Samuelsen, Annette; Sammartino, Michela; Sammartino, Simone; Sando, Anne Britt; Santoleri, Rosalia; Sathyendranath, Shubha; She, Jun; Simoncelli, Simona; Solidoro, Cosimo; Stoffelen, Ad; Storto, Andrea; Szerkely, Tanguy; Tamm, Susanne; Tietsche, Steffen; Tinker, Jonathan; Tintore, Joaquin; Trindade, Ana; Van Zanten, Daphne; Vandenbulcke, Luc; Verhoef, Anton; Verbrugge, Nathalie; Viktorsson, Lena; Wakelin, Sarah L.; Zacharioudaki, Anna; Zuo, Hao. |
| Tipo: Text |
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| Ano: 2018 |
URL: https://archimer.ifremer.fr/doc/00601/71276/71010.pdf |
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