Academic literature on the topic 'Climat – Sénégal'
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Journal articles on the topic "Climat – Sénégal"
Faty, Abdoulaye, Alioune Kane, and Amadou Lamine Ndiaye. "Influence de la manifestation climatique sur les régimes pluviométriques saisonniers dans le haut bassin versant du Sénégal." Revue des sciences de l’eau 30, no. 2 (January 22, 2018): 79–87. http://dx.doi.org/10.7202/1042915ar.
Full textSy, Oumar. "Aménagements Hydrauliques et Vulnérabilité de L’élevage Transhumant au Ferlo (Sénégal)." Sustentabilidade em Debate 1, no. 2 (December 22, 2010): 45. http://dx.doi.org/10.18472/sustdeb.v1n2.2010.1679.
Full textBADER, JEAN-CLAUDE, JEAN-PHILIPPE PIEDELIEVRE, and JEAN-PIERRE LAMAGAT. "Prévision saisonnière du volume de crue du Fleuve Sénégal: utilisation des résultats du modèle ARPEGE Climat." Hydrological Sciences Journal 51, no. 3 (June 2006): 406–17. http://dx.doi.org/10.1623/hysj.51.3.406.
Full textSALL, P. N., G. AUSSENAC, E. DREYER, and A. GRANIER. "Limitation par la sécheresse de la croissance d'Eucalyptus camaldulensis dehn. en climat sahélo-soudanien au Sénégal." Revue Forestière Française, no. 4 (1991): 309. http://dx.doi.org/10.4267/2042/26214.
Full textClément, V., J. Bouix, A. Gueye, and R. L. Baker. "Estimation des paramètres génétiques de la résistance au parasitisme gastro-intestinal en élevage villageois de petits ruminants au Sénégal." Revue d’élevage et de médecine vétérinaire des pays tropicaux 52, no. 3-4 (March 1, 1999): 291–303. http://dx.doi.org/10.19182/remvt.9678.
Full textSéguis, L., and J. C. Bader. "Modélisation du ruissellement en relation avec l'évolution saisonnière de la végétation (mil, arachide, jachère) au centre Sénégal." Revue des sciences de l'eau 10, no. 4 (April 12, 2005): 419–38. http://dx.doi.org/10.7202/705287ar.
Full textMandret, Gilles, A. Ourry, and Guy Roberge. "Effet des facteurs température et nutrition azotée sur la croissance des plantes fourragères tropicales. I. Variation saisonnière de la croissance d'une graminée tropicale, Brachiaria mutica, au Sénégal." Revue d’élevage et de médecine vétérinaire des pays tropicaux 43, no. 1 (January 1, 1990): 119–24. http://dx.doi.org/10.19182/remvt.8879.
Full textAguiar, Lazar A. A., Michelle Garneau, Anne-Marie Lézine, and Pascal Maugis. "Évolution de la nappe des sables quaternaires dans la région des Niayes du Sénégal (1958-1994): relation avec le climat et les impacts anthropiques." Sécheresse 21, no. 2 (April 2010): 97–104. http://dx.doi.org/10.1684/sec.2010.0237.
Full textBa Diao, Maty, A. Dieng, M. M. Seck, and R. C. Ngomibé. "Pratiques alimentaires et productivité des femelles laitières en zone périurbaine de Dakar." Revue d’élevage et de médecine vétérinaire des pays tropicaux 59, no. 1-4 (January 1, 2006): 43. http://dx.doi.org/10.19182/remvt.9953.
Full textHarmand, Jean-Michel, Mama Ntoupka, Bertrand Mathieu, Clément Forkong Njiti, Jean-Marie Tapsou, Jean-Christophe Bois, Philippe Thaler, and Régis Peltier. "Production de gomme arabique en plantations d'acacia senegal en zone soudanienne du Cameroun : Effet du climat, du sol, de la date d'incision et de la provenance des arbres." BOIS & FORETS DES TROPIQUES 311, no. 311 (March 1, 2012): 21. http://dx.doi.org/10.19182/bft2012.311.a20507.
Full textDissertations / Theses on the topic "Climat – Sénégal"
Ndiaye, Aminata. "Les paramètres de l'environnement et la pluviogenèse à travers un système d'information géographique : application à l'hivernage 1990 au Sénégal." Paris 1, 1994. http://www.theses.fr/1994PA010702.
Full textThe experience acquired over several years in the field of rainfall estimation in the Sahelian zone by satellite, has shown that on the regional scale, the results were globally satisfactory. However, on a local scale, it is necessary to take physical and climatic specificities of the study zone in account, by introducing complementary parameters in the computation of the relationships which describe the quantity and the areal distribution of rainfall. This is the method which has been used in Senegal, in the coastal countries of West Africa, where the research for appropriate indicators has been conducted within a geographical information system (GIS), in order to adapt existing models to local conditions
Sarr, Mamadou Adama. "Évolution récente du climat et de la végétation au Sénégal : cas du Bassin versant du Ferlo." Lyon 3, 2009. http://www.theses.fr/2009LYO31058.
Full textUnderstand the evolution and the recent variability of the climate in the arid and semi-arid regions is a necessity in order to anticipate what could be the consequences on the environments and on the societies of those regions, and thus define the strategic politics of sustainable development. To reach that goal, we have organised our research in three parts. The first part treats of the geographical plan through a detailed description of the physical environment and of the different systems of the ground occupation. This description put in evidence a fragile ecosystem under high pressure due to the activities which are employed here. The description summarizes also the middle climate frame by accentuating on the general mechanisms of the general circulation of West Africa which is part of the study zone. The analysis constitutes a recall of the dynamic average global conditions of the climatic tropical field which, in relation with local and regional factors, determines the average components of time in the study field and its margins. The second part concerns the analysis of the spatiotemporal variability on the period going from 1951 until 2005 by putting the accent more on the recorded rainfall than on other climatic parameters such as temperature, evaporation, relative humidity and insulation. But it underlines first the physical and methodological constraints which are compulsory for the statistic analysis of the parameters and justify also the models retained for the use of the database. The analysis of the recorded rainfall results show a high variability, but also a quasi stationarity from the end of the years 1970 and that until the middle of the 1980’s, and since an increase of the annual precipitation volumes on the totality of the study field. Compared to the evolution of other parameters (insulation, temperatures, evaporation and relative humidity), the middle of the 1980’s and the beginning of the years 1990’s appear like a period of trend “break up” justifying the questioning on the persistence or not of the dry trend of the Sahel climate in its totality. The third part starts by the analysis of the evolution of the vegetal production different time scale on the basis of a serie of synthesis images NDVI (Normalized Differential Vegetation Index) of NOAA-AVHRR on the period going from 1981 until 2005. The evaluation of the inter-annual and intra-annual evolution of the vegetal production in relation with the precipitations in the study field demonstrates a good correlation. On the other hand, the anthropic actions, within the framework of execution of the politics of planning disturb this close relation. This situation is put in evidence by the results obtained in the analysis of the cartography of the ground occupation changes between 1990 and 2002. The study conceived on the treatment of the images TM (Thematic Mapper) and ETM+ (Enhanced Thematic Mapper Plus) of Landsat in support of the statements of grounds; confirms the human action in the expansion from the bush savannah to arborous. After defining the characteristics, the follow up tool of the vegetation of the sensor SEVIRI of the satellite MSG is proposed. The corroboration of this new product is done on the basis of a comparative study with those of SPOT-VEGETATION and NOAA-AVHRR, frequently used in the scientific field. After a recall of the essential results of the research, the general conclusion insists on the exploration of solutions for water problems, important for a performing agriculture and a reduced mobility of the pastoral activity. And that passes through the multiplication of studies on the climatic variability, mostly on local scale. The general conclusion shows also the necessity of an approach of multi-sensors for the vegetation follow up. Finally, in order to bring more precisions for the comprehension of the thesis, you will find in the appendix elements concerning the characteristics of satellites as well as the sensors used and a study of cross validation on the techniques of spatial interpolation
Sarr, Benoît. "Climat et agriculture en Afrique Tropicale : le cas de la riziculture dans les espaces aménagés du bassin du fleuve Sénégal." Dijon, 1995. http://www.theses.fr/1995DIJOL013.
Full textThe basin of the Senegal river has been recently the subject of hydro-agricultural equipment (like the dam of Diama and the dam of Manantali). These equipment have been conceived, in order to promote the irrigate cultures of diversification mainly, especially the rice irrigated culture. However, the functioning of the different hydro-agricultural systems is conditioned by mainly constraints of the social, sanitary, and natural environment, including the climate. Among the climatic constraints we find according to the stations and the seasons: diurnal strong heat and by cold nights, worm and dry winds, and important losses in water because of the evapotranspiration, rainfall, etc. The agroclimatical challenges have been studied, mostly the problems of the choice and settlement of the cycles of the irrigated culture. The frequantial analysis of the data and or the numeric simulation have made it possible to detect on one hand the climatic optimal dates for the cultures and on the other hand the rice varieties which genetic properties are tolerant of not with the atmospheric stresses. The whole results have allowed to distinguish two types of gradients: an e-w gradient which brings differences between littoral stations, semi-continental stations and continental stations then a n-s gradient which opposes the sites of the Sahel and its peripheries
Sakho, Issa. "Evolution et fonctionnement hydro-sédimentaire de la lagune de la Somone, Petite Côte, Sénégal." Rouen, 2011. http://www.theses.fr/2011ROUES036.
Full textLocated at the Petite Côte of Senegal, Somone is a small coastal river that flows into the Atlantic Ocean by a microtidal lagoonal-estuarine ecosystem. Today, the contribution of the watershed is absent due to a combination of several factors including the dam of Bandia. The only freshwater inputs are from precipitation and groundwater. Somone is a lagoonal-estuarine system characterized by an inverse hydrological functioning where marine influences predominate. Mangrove, dominated by Rhizophora, is the main characteristic unit of this coastal system. The diachronic evolution of 60 years shows a significant change for all the morphological units of the ecosystem. The mobility of the sandy spit, which caused the closures of the mouth in 1967-1969 and in 1987, is related to meteorological variations. The regressive surface of mangroves between 1954 and 1989 is the result of the combined effect of these closures of the mouth, drought and traditional uses of mangroves. The restoration of the mangrove is mainly due to reforestation policies administered in the 2000s. The annual and seasonal trend shows that the internal reworking is the main hydro-sedimentary processes. Sedimentation rate of the mud flats is 2 to 3 mm. Year-1. The dynamics of the sandy spit of the Somone plays an important role in the development and quality of internal units, the mangroves in particular. The permanent opening of the mouth allows a twice-daily renewal of water in the lagoon, which is essential for regulating the high salt content. The low content of sediment in total organic carbon, reflect the low organic matter production of the mangrove because it is a young and stunted mangrove. Diagenetic processes are anaerobic and mostly in the top 10 cm of the sediment, on the recent deposit. The contribution of young mangroves, like Somone, in the carbon storage process, is low. The lagoonal-estuarine ecosystem of the Somone is fragile and highly reactive and his evolution is fast and linked to the cumulative effects of natural and anthropogenic factors
Noblet, Mélinda. "L'adaptation au changement climatique en zone côtière au Canada et au Sénégal, une comparaison Nord-Sud." Thesis, Amiens, 2015. http://www.theses.fr/2015AMIE0042/document.
Full textThis thesis addresses the institutional and vernacular processes of adaptation to climate change in coastal areas. The purpose of this study is to challenge the generally accepted idea by the international community that the southern countries would be more vulnerable and able to cope with the negative impacts of the CC than the northern countries. Canada, a northern country considered developed and the Senegal a southern country perceived under development were selected as case studies. This thesis analyses the ways the problems of the climate and climatic vulnerability are perceived and managed by the Canadian and Senegalese societies and critically examines the actions taken at the title of adaptation. We chose to proceed within a constructivist perspective by establishing the framework of the analysis which concurrently combines the approaches multi-scalar, definitional, interactive and diachronic. From a methodological point of view, this thesis is based on a qualitative approach and privileges semi-directed interview and focus group. The results show that the climatic vulnerability is an international problem and the capacities to be adapted are equally weak in both countries. We have also observed that global warming and the problems it produces put under serious questions the methods of managing environmental issues and patterns of development in both sides north and south
Top, Arame. "Évolution des systèmes de production agricole dans un contexte de changement climatique et de migration et effet de genre dans les trois zones éco-géographiques de la région de Matam au Sénégal." Thesis, Toulouse 2, 2014. http://www.theses.fr/2014TOU20030/document.
Full textThe development of production systems in a global context and such kind of effect in the Matam region aims to introduce mutations in a traditional development environment based on crop rotation and seasonal and spatial alternation in context of irrigated agriculture through the waters of the Senegal River. This context is part of a state policy Senegalese anxious to boost household food security of the river valley rocked by a violent climate crisis which hit nearly two decades. These populations heavily dependent decline integrated culture in a traditional production system that highlighted the livestock, fisheries, rainfed agriculture, seasonal migration, saw their hopes dashed survival. Commissioning of dam Diaman and Manantali, registered in the 0MVS program (development of the Senegal River) between riparian countries (Senegal, Mauritania, Guinea and Mali) significantly reduced the occurrence of floods. This program, which had vast ambitions confiscated the life of riverine populations of the river hindsight flood the Senegal River. These people, whose seasonal migration was part of their production system, adopted a long-term migration to ensure food security of households left the village. The irrigated farming system implemented through irrigation schemes, requires greater human resources and flood recession cultivation and higher production costs
Diouf, Aliou. "Interactions société, nature et climat au Sahel : la rupture socio-économique et écologique au Centre-Est agro-sylvopastoral sénégalais au XXe siècle." Thesis, Université Laval, 2008. http://www.theses.ulaval.ca/2008/25853/25853.pdf.
Full textSall, Moussa. "Crue et élévation du niveau marin à Saint-Louis du Sénégal : impacts potentiels et mesures d'adaptation." Le Mans, 2006. http://cyberdoc.univ-lemans.fr/theses/2006/2006LEMA3003.pdf.
Full textSenegal river delta is a low area under Atlantic Ocean and Senegal river influences. During the rainy season, the annual river flow, depending to the rainfall in the upper watershed, is combinated to the seasonal sea level rise due to the tropical water flow and the monsoon which accumulate water on the coast. From now to 2 100, sea level will increase because of global temperature rise linked to climate change. Human interventions, like dikes, protect the delta's low areas from flood. Nevertheless, the Diama's dam can't protect Saint-Louis town again flood. Then emergency level has a probability of 34% to occur by year in Saint-Louis and will happen every three years. But water level does not explain all. The duration of water stagnation or the slow evacuation of flow is important too. Then, no dredges, lengthening of "Langue de Barbarie" and sea level rise have increased this phenomenon. Different scenarios of water level based on Senegal river flows at Saint-Louis and sea level rise forecast, carry away impacts with various intensities in Saint-Louis town
Sakho, Issa. "Évolution et fonctionnement hydro-sédimentaire de la lagune de la Somone, Petite Côte, Sénégal." Phd thesis, Université de Rouen, 2011. http://tel.archives-ouvertes.fr/tel-00680519.
Full textMbaye, Ibrahima. "Climat et société dans l'apparition et la diffusion de la méningite à méningocoque en zone Soudano-Sahélienne de l'Afrique de l'ouest : Le cas du site de Niakhar (Sénégal)." Université Louis Pasteur (Strasbourg) (1971-2008), 2005. http://www.theses.fr/2005STR1GE16.
Full textBooks on the topic "Climat – Sénégal"
Changements climatiques, dynamiques des milieux et crises de sociétés en Afrique de l'ouest: Bénin, Mali, Sénégal, Togo. Paris: L'Harmattan, 2012.
Find full textUnesco. Social and Human Sciences Documentation Centre, ed. Impact des changements environnementaux sur les migrations humaines: Étude de cas : Sénégal et Côte d'lvoire. [Dakar]: UNESCO, Secteur des sciences humaines et sociales (SHS), 2014.
Find full textBook chapters on the topic "Climat – Sénégal"
Coly, Adrien, and Fatimatou Sall. "Saint-Louis du Sénégal, les « aventuriers » de la terre." In Inequality and Climate Change, 69–82. CODESRIA, 2015. http://dx.doi.org/10.2307/j.ctvh8r0w3.9.
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