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Добірка наукової літератури з теми "Atlantique tropical nord-est"
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Статті в журналах з теми "Atlantique tropical nord-est"
Marchane, Ahmed, Lionel Jarlan, Lahoucine Hanich, and Abdelghani Boudhar. "Caractérisation de l'enneigement sur l'atlas marocain par le capteur MODIS et relation avec le climat (période 2000-2011)." Revue Française de Photogrammétrie et de Télédétection, no. 204 (April 8, 2014): 13–22. http://dx.doi.org/10.52638/rfpt.2013.18.
Повний текст джерелаJarlan, Lionel, Jaouad Abaoui, Benoît Duchemin, Yves Tourre, Abdelaziz Ouldbba, Sylvain Mangiarotti, Hakim Kharrou, et al. "Déterminants climatiques de la variabilité interannuelle des rendements en céréales et prévision précoce. Application a la province de Settat (Maroc)." Revue Française de Photogrammétrie et de Télédétection, no. 204 (April 8, 2014): 5–12. http://dx.doi.org/10.52638/rfpt.2013.17.
Повний текст джерелаДисертації з теми "Atlantique tropical nord-est"
Cosson, Nathalie. "Structure et diversité des peuplements benthiques profonds en réponse à des situations trophiques contrastées dans l'océan Atlantique nord-est tropical et tempéré." Brest, 1996. http://www.theses.fr/1996BRES2045.
Повний текст джерелаLegeleux, Françoise. "Relations entre particules marines et message sédimentaire : flux de matière dans la colonne d'eau et transformations à l'interface eau-sédiments dans l'océan atlantique tropical de Nord-Est." Paris 6, 1994. http://www.theses.fr/1994PA066397.
Повний текст джерелаTachikawa, Kazuyo. "Apport des concentrations de terres rares et des compositions isotopiques de néodyme à l'étude de processus dans la colonne d'eau : cas de l'Atlantique Tropical Nord-Est (sites EUMELI)." Toulouse 3, 1997. http://www.theses.fr/1997TOU30172.
Повний текст джерелаResplandy, Laure. "Impacts biogéochimiques des processus de haute fréquence à l'échelle régionale et saisonnière." Paris 6, 2010. http://www.theses.fr/2010PA066089.
Повний текст джерелаAthias, Véronique. "Une Méthode d'estimation paramétrique non-linéaire pour modéliser les flux de matière dans la colonne d'eau océanique : application à l'Océan Atlantique tropical nord-est (sites EUMELI)." Toulouse 3, 2001. http://www.theses.fr/2001TOU30038.
Повний текст джерелаSylla, Adama. "Variabilité inter-annuelle à décennale et réponse aux forçages anthropiques de l’upwelling sénégalo-mauritanien." Electronic Thesis or Diss., Sorbonne université, 2019. http://www.theses.fr/2019SORUS675.
Повний текст джерелаThe oceanic region located off the Senegalese and Mauritanian coasts is one of the most productive one in the world ocean. This is due to the upwelling system, which occurs during the winter season in this region. This seasonality is very specific. In particular, it differs from the well-known upwelling systems located along the eastern coast of the tropical oceans but further poleward such as along Morocco and the Iberian peninsula, the Californian coast, the Peru-Chili and the Benguela. These upwelling systems are maximum in summer. Several studies have investigated their sensitivity to global warming. Early studies have suggested that their intensity may increase in the future, but recent observations do not clear give robust evidence of this behavior. The winter senegalo-mauritanian upwelling system has been largely excluded from these studies, in spite of its crucial role for the socio-economical development of the populations of the surrounding region, whose food and income strongly depend on the halieutic resources. In this context, this study proposes an evaluation of the representation of this system in the CMIP5 climate models, and its response to climate change. Our analysis is based on characteristics of the upwelling in terms of wind forcing and sea surface temperature signature. In spite of some diversity in the model’s ability to represent the senegalo-mauritanian upwelling system, the results suggest that its intensity may rather decrease in the future, primarily because of a reduction of the wind forcing. In a second hand we propose an analysis of the inter-annual to decadal variability of the intensity of the upwelling based on recent reanalyses. This study focuses on the link with the monsoon and with large scale climate modes such as the North Atlantic Oscillation (NAO), Atlantic Multi- decadal Oscillation (AMO). The link with the decadal variations of the West African Monsoon (WAM) during the opposite season is relatively clear. It is associated with anomalous trajectories of the ITCZ. The indices characterizing the upwelling are not always correlated with each other, showing that they are not yet very robust. They nevertheless indicate a marked variability at the decadal timescale partly associated with the AMO
Skonieczny, Charlotte. "Caractérisation multi-proxy de « poussières Sahariennes » déposées à l'actuel sur la marge Ouest africaine : relations avec les régions sources et les systèmes de transport et implications pour l’interprétation des archives sédimentaires en Atlantique Tropical Nord-Est." Thesis, Lille 1, 2011. http://www.theses.fr/2011LIL10171/document.
Повний текст джерелаThe study of the aeolian material in the sedimentary archives of the NEATO contributes to document the paleoclimatic changes in this region. However, the interpretation of these records is complicated by the fact that proxies used in the deep sea sediments to reconstruct the provenance regions and the associated atmospheric transport patterns remain poorly constrained. A study of the aeolian deposits in the present-day climatic context was carried out on the West African margin in order to improve our understanding of the proxies. In this frame, a mineral dust deposits trap was installed in 2006 on the Senegalese coast, providing a unique aeolian deposits time series with a temporal resolution better than a week. The first part of this study consists in a multi-proxy analysis of the aeolian deposits collected from 2006 to 2009 (including grain-size distribution, clay mineralogy and strontium and neodymium isotopic ratios) and the subsequent development of a calibration of these tracers in terms of provenance regions and transport patterns in the present-day climatic context. In a second part, this calibration was (1) tested against sea surface sediments of the NEATO and then (2) used to decipher the aeolian terrigenous signal recorded during the last 26 000 years in the MD03-2705 core (18°05N; 21°09W). This PhD work contributes to document in which ways this initial present-day calibration of the aeolian proxies can contribute to improve our understanding of the terrigenous signal in NEATO