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Literatura académica sobre el tema "Océan Pacifique sud-ouest"
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Tesis sobre el tema "Océan Pacifique sud-ouest"
Le, Bec Nolwenn. "Reconstitution des salinités et des températures des eaux de surface dans l'océan Pacifique tropical sud-ouest au cours du dernier siècle : étude multi-traceurs d'un corail scléractiniaire massif (Porites sp.) des îles Fidji". Paris 11, 2001. http://www.theses.fr/2001PA112102.
Texto completoBrunel, Jean-Pierre. "L'évaporation sous différents climats du sud-ouest Pacifique : études énergétique et isotopique". Paris 11, 1992. http://www.theses.fr/1992PA112475.
Texto completoLafoy, Yves. "Evolution géodynamique des bassins marginaux Nord-Fidjien et de Lau (Sud-Ouest Pacifique)". Brest, 1989. http://www.theses.fr/1989BRES2024.
Texto completoRigolot, Patrick. "Origine et évolution du "système" ride de Nouvelle-Calédonie/Norfolk (sud-ouest pacifique) : synthèse des données de géologie et de géophysique marine : étude des marges et bassins associés". Brest, 1989. http://www.theses.fr/1989BRES2018.
Texto completoDurand, Pascale. "Taxonomie des bactéries oxydant les composés soufrés réduits en milieu hydrothermal profond : cas du sud-ouest Pacifique". Brest, 1992. http://www.theses.fr/1992BRES2008.
Texto completoGrenier, Melanie. "Le rôle du Pacifique Tropical Sud-Ouest dans la fertilisation du Pacifique Équatorial : couplage dynamique et multi-traceur". Phd thesis, Université Paul Sabatier - Toulouse III, 2012. http://tel.archives-ouvertes.fr/tel-00876092.
Texto completoCouvelard, Xavier. "Structure et dynamique des jets barotropes créés par les îles du Pacifique Sud-Ouest". Toulouse 3, 2007. http://thesesups.ups-tlse.fr/149/.
Texto completoThe oceanic circulation entering the tropical southwest Pacific (SWP) is dominated by the broad westward flow of the South Equatorial Current (SEC), forced by the trade winds. It has been argued that the numerous islands of the SWP are able to restructure the SEC into a series of deep and narrow zonal jets, which control important pathways connecting equatorial and extra-equatorial signals. The primary objective of this study is to improve our understanding of the structure and dynamics of SWP zonal jets, giving special attention to topographic effects. Our study is based on the use of a high-resolution regional oceanic model, whose solution is compared with observations, as well as with solutions from global models and the Sverdrup relation. Our model indicates that the regional topography drives a general equatorward shift of the SEC, which is beneficial to the North Fiji, North Vanuatu and North Caledonian Jets. A depth-integrated vorticity budget shows that this topographic effect is considerably attenuated by baroclinicity and advection processes, but not to the point of total compensation as often admitted for the interior ocean. The effect of non-linear advection is to allow flow rectification of the jets fluctuations which takes the form of zonally elongated dipole circulations in the leeward side of the islands
Cillaurren, Espérance. "La pêche à la traîne autour des dispositifs de concentration de poissons mouillés à Vanuatu : un exemple dans le Pacifique sud-ouest". Brest, 1987. http://www.theses.fr/1987BRES2034.
Texto completoGrenier, Mélanie. "Le rôle du pacifique tropical sud-ouest dans la fertilisation du pacifique équatorial : couplage dynamique et multi-traceur". Toulouse 3, 2012. http://thesesups.ups-tlse.fr/2070/.
Texto completoIn my thesis, I study the sources of the Equatorial Undercurrent (EUC). The EUC is composed of water masses that feed the central and eastern equatorial Pacific, an area of prime importance due to its biological productivity and its impact on climate. First, I used an ocean general circulation model (OGCM) to describe the EUC in terms of its source trajectories, transports and mean hydrological characteristics. Then, I characterized the geochemical enrichment of the water masses that feed the equatorial Pacific, the EUC waters being the main contributors to the High Nutrients - Low Chlorophyll (HNLC) area. For this purpose, I used geochemical tracers : the neodymium (Nd) isotopes and the Rare Earth Element (REE) concentrations. Finally, I coupled both approaches to quantify the geochemical evolution of the thermocline waters of the southwest Pacific
Receveur, Aurore. "Ecologie spatiale du micronecton : distribution, diversité et importance dans la structuration de l'écosystème pélagique du Pacifique sud-ouest". Thesis, Aix-Marseille, 2019. http://www.theses.fr/2019AIXM0401.
Texto completoThe New Caledonian pelagic ecosystem in the southwest Pacific contains a high diversity of predators, such as seabirds and cetaceans. The recent creation of the Natural Park of the Coral Sea created a need for solid information on the functioning of this remarkable ecosystem, particularly on the dynamics of the micronecton (organisms between 1 and 20 cm constituting food of top predators) and its central role in food webs, especially since is the most poorly understood. In this context, this PhD showed a strong influence of environment on its spatial and seasonal distribution with on average more micronekton in the south than in the north, and more in winter than in summer. The species composing the micronecton are riche in crustaceans in the north and in cephalopods and fish in the south. The micronecton abundance would tend to decrease under the influence of climate change. Finally, we showed that the spatial distribution of this group influenced the presence of six groups of predators: yellowfin tuna, albacore tuna, dolphin, dolphin, shearwater and red-footed body