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Academic literature on the topic 'Océanographie – Recherche – Pacifique (océan)'
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Journal articles on the topic "Océanographie – Recherche – Pacifique (océan)"
Alory, Gaël, Philippe Téchiné, Thierry Delcroix, Denis Diverrès, David Varillon, Jean-René Donguy, Gilles Reverdin, et al. "Le Service national d'observation de la salinité de surface de la mer : 50 ans de mesures océaniques globales." La Météorologie, no. 109 (2020): 029. http://dx.doi.org/10.37053/lameteorologie-2020-0044.
Full textDissertations / Theses on the topic "Océanographie – Recherche – Pacifique (océan)"
Croquette, Marie. "Contribution à l'étude de l'upwelling du Pérou Chili." Phd thesis, Université Paul Sabatier - Toulouse III, 2007. http://tel.archives-ouvertes.fr/tel-00184638.
Full textVannière, Benoît. "Analyse des biais des modèles couplés à l'aide de l'ajustement de simulations initialisées : application au Pacifique tropical." Paris 6, 2013. http://www.theses.fr/2013PA066184.
Full textCoupled General Circulation Models (CGCMs) are largely used to understand the physical processes of the climate system, and to predict climate variability from the seasonal to centennal time scales. The deficiencies of empirical parameterizations and the lack of resolution generate systematic biases that need to be eliminated in order to reduce the uncertainty of the past, present and future simulated climate. The persistence of systematic biases for several generations of models shows that the progressive implementation of development of parameterization is not sufficient to significantly reduce systematic biases. It is thus necessary to propose new evaluation strategies for coupled models. A systematic approach to diagnose the origin of biases, based on the analysis of the adjustment of coupled simulations initialized close to observation, is developped in this work. The aim is to attribute the coupled errors to biases of CGCM components that develop independently present from coupling. Associated to the existent evaluation techniques, such as AMIP type protocols for the atmosphere, the proposed strategy forms a an end-to-end strategy to attribute coupled biases to precise parameterizations. This new and structured approach can be generalized to other models and other biases, and will help to define priorities in model development to significantly reduce systematic biases
Hisard, Philippe. "Etat moyen et variabilité des courants équatoriaux et des structures thermiques associées dans l'Océan Pacifique et l'Océan Atlantique." Paris 6, 1986. http://www.theses.fr/1986PA066111.
Full textGrelaud, Michaël. "Variabilité climatique multi-échelles depuis le pléistocène terminal jusqu'à l'actuel, sur la marge pacifique nord américaine." Aix-Marseille 3, 2008. http://www.theses.fr/2008AIX30059.
Full textThe North American Pacific margin surface hydrography is characterized by the California Current System (CCS) whose intensity seasonally responds to the dynamic of northeastern Pacific atmospheric cells. On longer time scales, CCS's intensity depends on climatic oscillators: the El Nino Southern Oscillation (ENSO) and Pacific Decadal Oscillation (PDO). The fossil assemblages of coccolithophores in two oceanic sedimentary basins (Santa Barbara and Soledad) were used to reconstruct the dynamics of these climate oscillations over the last 28,000 years. The ENSO and PDO have persisted throughout this period and have strengthened over time, their cyclicity responding to the precession. The maxima of their intensity are observed during the middle Holocene and during the 20th century. The morphometry of coccoliths shows that calcification is mainly controlled by sea surface temperature
Hernandez, Fabrice. "Comparaison et combinaison de données altimétriques et lagrangiennes. Application à la campagne SEMAPHORE-93." Toulouse 3, 1995. http://www.theses.fr/1995TOU30295.
Full textPietri, Alice. "Variabilité méso et subméso-échelle de l’upwelling du Pérou à partir d’observations glider et de modélisation haute résolution." Paris 6, 2013. http://www.theses.fr/2013PA066154.
Full textThe aim of this PhD thesis is to study meso and submesoscale variability in the Peru upwelling system, one of the four major Eastern Boundary Upwelling Systems (EBUS). These regions are characterized by horizontal temperature and density gradients between the coastal area and the open sea and by an enhanced biological activity. This work is based on "glider" observations along a repeat section in an upwelling cell offshore Pisco (14◦S). This in situ data gave the opportunity to describe the hydrological and alongshore velocity vertical structure in this EBUS. The acquired data allowed to estimate alongshore velocities and to study their vertical structure and variability. The surface current and the undercurrent have thus been described in detail. In addition, a deep equatorward intermittent cur- rent was evidenced in April 2010. Its dynamic and origin were studied with two eddy-resolving high-resolution models. It has been shown that this current is probably associated with a coastally trapped wave propagating from the equatorial region to the pole. This signal was also reproduced with a simple linear model and related to a third baroclinic mode of coastal-trapped wave. Hydrological data was also used to highlight the presence of submesoscale features in subsurface near the upwelling front. Different processes able to act on the distribution of thermohaline properties were studied to estimate their impact on the region. Dynamical diagnostics have shown that frontgenesis, wind driven symmetric instability and mesoscale stirring are taking place in the upwelling frontal region and could explain the observed submesoscale variability. Joint action of these three processes is likely responsible for the formation of the observed thermohaline intrusions. Variability of the upwelling front at several spatial and temporal scales was studied and the importance of meso and submeso scale dynamics highlighted in this complex system. Crucial processes have been described in order to improve the comprehension of the Peru-Chile upwelling system
Canceill, Pascal. "Restitution subdécimétrique des marées dans l'océan Pacifique par un modèle hydrodynamique aux éléments finis." Toulouse 3, 1993. http://www.theses.fr/1993TOU30271.
Full textVargas, Gabriel. "Interactions océan-atmosphère au cours des derniers siècles sur la côte du Désert d'Atacama : analyse multi-proxies des sédiments laminés de la Baie de Mejillones (23°S)." Bordeaux 1, 2002. http://www.theses.fr/2002BOR12547.
Full textLe, Houëdec Sandrine. "Paléocéanographie Indo-Pacifique depuis le Crétacé Supérieur tracée par les isotopes du néodyme : entre tectonique des plaques, processus d'érosion et mélanges océaniques." Paris, Institut de physique du globe, 2011. http://www.theses.fr/2011GLOB0014.
Full textDurand, Fabien. "Contrôle des couches superficielles des océans tropicaux par assimilation de données satellite : application au Pacifique tropical." Toulouse 3, 2002. http://www.theses.fr/2002TOU30138.
Full textBooks on the topic "Océanographie – Recherche – Pacifique (océan)"
Jean-Claude, Therriault, Canada. Dept. of Fisheries and Oceans., and Workshop/Symposium on the Oceanography and Fishery of the Gulf of St. Lawrence (1990 : Maurice Lamontagne Institute), eds. Le Golfe du Saint-Laurent--petit océan ou grand estuaire?: Compte-rendus d'un atelier/symposium tenu à l'Institut Maurice-Lamontagne (Mont-Joli) du 14 au 17 mars 1989. Ottawa: Pêches et océans, Direction générale des communications = Fisheries and Oceans, Communications Directorate, 1991.
Find full text-C, Therriault J., Canada. Ministère des pêches et des océans., Symposium on the Oceanography and Fishery of the Gulf of St. Lawrence, Canada. Dept. of Fisheries and Oceans., and Symposium sur l'océanographie et les pêcheries du golfe du Saint-Laurent (1990 : Institut Maurice-Lamontagne), eds. The Gulf of St Lawrence : small ocean or big estuary? : proceedings of a workshop/symposium held at the Maurice Lamontagne Institute, Mont-Joli, 14-17 March 1989 =: Le Golfe du Saint-Laurent : petit océan ou grand estuaire? : compte-rendus d'un atelier/symposium tenu à l'Institut Maurice-Lamontagne (Mont-Joli) du 14 au 17 mars, 1989. Ottawa, Ont: Dept. of Fisheries and Oceans, Communications Directorate = Ministère des pêches et des océans, Direction générale des communications, 1991.
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