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Artykuły w czasopismach na temat "Littoraux – Modifications – Environnement"
Morhange, Christophe, Jean Philippe Goiran, Michel Bourcier, Perre Carbonel, Benjamin Kabouche, Joël Le Campion, André Prone i in. "3000 ans de modifications des environnements littoraux à Kition Bamboula (Larnaca, Chypre, Méditerranée Orientale) [3000 years of coastal evolution of Kition Bamboula (Larnaca, Cyprus, Mediterranean sea)]". Quaternaire 10, nr 2 (1999): 133–49. http://dx.doi.org/10.3406/quate.1999.1637.
Pełny tekst źródłaNdaw, Ndioufa, Mouhamadou Lamine Diallo, Souleymane Niang i Boubou Aldiouma Sy. "Dynamiques territoriales des Niayes: divergences économiques entre industrie extractive minière et agriculture (littoral Nord du Sénégal)". European Scientific Journal ESJ 16, nr 35 (31.12.2020). http://dx.doi.org/10.19044/esj.2020.v16n35p152.
Pełny tekst źródłaRozprawy doktorskie na temat "Littoraux – Modifications – Environnement"
Ghodbani, Tarik. "Environnement et littoralisation dans l'Ouest algérien". Paris 8, 2009. http://www.theses.fr/2009PA083042.
Pełny tekst źródłaThe thesis deals with the problem of intensive coastal growth and its impacts on environmental in the western coast of Algeria, "From the slope of the Dahra Mountains eastward to Oued Kiss Westward". It focuses on the man – environment relationship by combining the knowledge of physical geography to human geography. It analyzes the different modes of occupation of the coastal area, and addresses the interactions between different components of the landscape at the ecological, economic and social level. The thesis is structured in three parts, and includes analysis based on case studies. The first deals with environmental issues by three entries: the disruption of coastal dynamics, the loss of biodiversity and degradation of the natural landscape. The second focuses on explaining the causes of degradation through the study of littoralization and its various mutations at the regional and local level. The third and final section is devoted to the study of management tools, the main actors involved and the use conflicts around the issue of environment and coastal land, in order to end up finall to a set of proposals for an integrated management of coastal areas in Algeria, in general, and the west coast in particular. Two methods are applied: one diachronic and the other multiscalaire. The diachronic, deals with evolution over time, of the interactions between coastal occupation and natural landscape. The multiscalaire, deals with an analysis of various phenomena through several layers of scales, from local to global, and vice versa
Besset, Manon. "Morphodynamique récente, évolution et vulnérabilité des littoraux deltaïques : une analyse globale". Electronic Thesis or Diss., Aix-Marseille, 2017. http://theses.univ-amu.fr.lama.univ-amu.fr/171122_BESSET_150scdmpz142i993bv93l_TH.pdf.
Pełny tekst źródłaRiver deltas are rich and fragile ecosystems. Deltas depend on fluvial sediment supply to balance natural subsidence and erosion caused by waves and currents. Deltas are mainly affected by river flooding, marine submersion. However, deltas are strategic sites of human settlement, economic hotspots, and geopolitical issues. This attraction increases the pressure, rendering these deltas more and more exposed to risks and vulnerable.The main objective of this thesis is to analyze the past and present functional dynamics of delta shorelines based on 60 of the world’s deltas and a holistic and systemic approach with spatial, environmental, and societal data. After the study of recent coastal evolution showing a tendency to decreasing progradation of many deltas, a conceptual and qualitative classification of deltaic morphology based on fluviomarine influences was conducted. Updating of this classification and the proposal of new approaches, in terms of morphology, dynamics, and vulnerability, have necessitated revisiting these older schemes, and the adoption of a methodological and interpretative approach aimed at quantification of the weight of each of these three parameters showing the complexity of the interactions. The thesis proposes a new quantitative and objective classificatory framework, including the human dimension. Finally, the thesis highlights the responses of deltaic shorelines to exceptional perturbations, and highlights the limits of resilience. The thesis advises over the impact of humans on these fragile coastal environments, the equilibrium of which strongly depends on sediment supply. This fragility is further exacerbated by the impacts of climate change
Saffache, Pascal. "Le littoral martiniquais : milieux, dynamiques et gestion des risques". Antilles-Guyane, 1998. http://www.theses.fr/1998AGUY0035.
Pełny tekst źródłaThe evolution of Martinique's coastline is a source of worriness. Indeed, from 1955 to 1996, more than 90 kms of coast have receded of about 20 meters in average. At the bottom of bays and culs-de-sac, hundreds of thousands tons of sediments have piled up, thus encouraging the rising of depths and the necrosis of corals. The phenomena have continually grown ; until then, none had studied the various components of the coastline and their modes of functioning. Martinique's coastline is made up of four distinct physical entities : sandy and muddy coves, rivers and cliffs mouths. These four entities result from the same influences : earth, sea and submarine influences. The erosion of the septentrional coastline shows two characteristics. First, geological, bathymetric and hydrodynamic elements combine to erode the coast. Second, man's influence just amplifies those mentioned above. The modes of fattening of culs-de-sac are simpler, for they result from the erosive process of slopes basins completed by the fixing influence of plants growing on salt grounds and more usually by the geographic confinement. In spite of the disturbances created by these dynamics, there exists no regional policy of coast conservation. We propose to remedy it by modelling the coastline, by estimating the cost of coast damages and by systematically studying the environment before any regional development
Klein, Judith. "Protéger le littoral dans les départements français d'outre-mer". Paris 4, 2003. http://www.theses.fr/2002PA040250.
Pełny tekst źródłaCaulet, Charles. "Les plages sableuses en environnement macro-tidal : de l'influence de la pente sur les processus morphodynamiques". Thesis, Brest, 2018. http://www.theses.fr/2018BRES0079/document.
Pełny tekst źródłaThis PhD work is focused on the morphodynamic of a pocket beach, located in a macrotidal environment. The beach type is intermediate, with a low tide terrace. The study is based on in situ observations, collected during field campaigns organized during the PhD. The objective is to characterize the beach slope impact on hydrodynamics processes and beach morphology. The water levels dynamic, infragravity waves propagation and turbulence generation in the swash zone, are examined and linked to the beach slope variability.The empirical formulations proposed in the literature show large under-estimations of water levels in the site. Empirical formulations adapted to the beach are proposed.The characteristic break slope presents along the cross-shore profile of low tide terrace beaches is studied. The variability of the break slope location is relevant to explain the short term accommodation of the beach. Under incident wave energy, the location of the beach slope moves shoreward, allowing higher wave dissipation by the low tide terrace. Nevertheless, the reflective part is reduced, which leads to a vulnerable state of the upper beach under strong forcing associated with high tide. The location of the beach slope is found to be a good indicator of the beach vulnerability under a given wave forcing. It provides valuable information in the globalized beach erosion context
Boisson, Antoine. "Caractérisation et modèles d'évolution des environnements côtiers du Nunavik, Québec, Canada". Doctoral thesis, Université Laval, 2019. http://hdl.handle.net/20.500.11794/36623.
Pełny tekst źródłaThis thesis focuses on the coastal environments of Nunavik (Quebec territory north of the 55th parallel), which had only been studied very briefly until now, both in space and over time. This research is unique in that no integrated study had yet been conducted in the field of coastal geomorphology on all the coasts of Nunavik. Most of these coasts are emerging due to a decrease in relative sea level because of the glacial isostatic adjustment. This geophysical characteristic has major consequences on the formation, morphology and evolution of Nunavik’s coastal environments. It also contributes to the mitigation of coastal risks. This thesis, mainly descriptive, addresses several aspects of Nunavik’s coasts: basic knowledge of coastal types through segmentation and classification work; a complete state of the art of climatic, cryogenic, geological and hydrodynamic conditions, which have shaped the coasts since the beginning of deglaciation; coastal hazards and risks; the study of specific geomorphological features such as boulder barricades as well as the De Geer moraine, esker and drumlinoid coastlines and the temperature regime of epigenetic permafrost on a rapidly emerging coast.
Clavé, Bérengère. "Évolution des paléo-environnements côtiers à l'Holocène : exemple de l'Aquitaine septentrionale". Bordeaux 1, 2001. http://www.theses.fr/2001BOR12413.
Pełny tekst źródłaHoussein, Abdi Yassin. "La côte continentale du Pertuis Breton, du début du XVIIIe siècle à la fin du Second Empire : évolution et aménagement du littoral depuis la Tranche-sur-Mer jusqu'au nord de La Rochelle". Electronic Thesis or Diss., La Rochelle, 2023. http://www.theses.fr/2023LAROS013.
Pełny tekst źródłaBetween the beginning of the 18th century and the end of the Second Empire, the continental coast of the Pertuis Breton experienced a significant evolution. It is composed of three singular, dynamic and correlated geomorphological landscapes: a marshy area, a dune zone and a cliff coast. These environments underwent slow natural transformations which led to the creation of the sandy spits of Arcay and Aiguillon which form a large dune belt. The latter is fed by a considerable transport of sand from west to east by littoral drift. These sediment movements are subject to the influence of hydrodynamic agents. The rise in oceanic waters leads to the progressive clogging of the Gulf of the Pictons with sediment of fluvio marine origin. This process is at the origin of the formation of the Aiguillon Cove and the Poitevin Marsh. These environments also go through brutal natural transformations due to extreme climatic phenomena. This study also highlights the role of human influence in the evolution and modification of their coastline. Developments are particularly visible in the Marais Poitevin. Between the Middle Ages and the 19th century, this territory was the focus of a major transformation that greatly modified its ecosystem. This wetland was drained by the creation of canals, dykes and locks. Thanks to the draining carried out by the marsh companies, agriculture and livestock farming flourished and gradually replaced the flooded lands, which were considered unsanitary. The marshes then experienced an influx of people. The State is present on this coastline through the Admiralty under the Ancien Régime or the administration of the Ponts et Chaussées in the 19th century
Mahmoud, Haya. "La côte d’Emeraude : forçages météorologiques et anthropiques sur la morphodynamique littorale". Thesis, Rennes 2, 2015. http://www.theses.fr/2015REN20055/document.
Pełny tekst źródłaThis PhD deals with the geomorphologic behavior of the Northern coast of Brittany between the Pointe du Grouin and Cap Frehel. The coastline is comprised of four coastal systems: low coasts (marsh system, and dune system) and rocky coasts (hard rock cliffs, soft rocks cliffs). The dynamics of these systems is controlled by transfers of energy and sediment (from source sites to sink sites). The variation of these transfers in time and space modifies the sedimentary stock and therefore the rate of morphological evolution of the coastline. The dunes / soft cliffs association puit sites and source sites) are especially sensitive to these variations and show many erosion processes and features. Moreover the increase in anthropogenic pressures since the 60s has led to increasing artificial coastal areas. In this context, we trace the recent mobility of the coastline and we try to identify the main types of morphodynamics behavior in the evolution of coastal forms. The analysis is based on the digital processing aerial photography in order to quantify the trends of the evolution. The analysis links the changes with a GIS database describing the factors controlling the evolution of the coastline. Results show that retreat is controlled by accelerated erosion process during storms and by anthropogenic processes. The sediment deficit of some beaches may be related to a shortage of inputs from the soft cliffs. The respective roles of storms and anthropic forcing are highly variable from one site to another and no general rule may be constructed for the entire region
Sipka, Vincent. "Les plages macrotidales du nord pas de calais contexte environnemental et caracterisation morphodynamique". Littoral, 1998. http://www.theses.fr/1998DUNK0022.
Pełny tekst źródłaThe coast of northern france exhibits wide macrotidal ridge and runnel beaches associated with coastal dunes onshore and numerous sand banks offshore. Hydrodynamic conditions are associated with strong tidal currents and periodic storms in an essentially fetch-limited environment modally dominated by low energy wind waves. Wave and current measurements were carried out in the course of numerous surveys of the morphology, sediments and bedforms of several beaches in order to define the morphodynamics of these ridge and runnel beaches. Profile surveys highlight marked inter-site and intrasite morphological variability, some beach sectors being quite stable while others show marked mobility with little change, however, in profile volume. The beaches may be divided into three zones: a lower beach dominated by longshore tidal current action, and mid- and upper beach zones that reflect wave dominance, even under low wave conditions, and significant cross-shore current activity related to both tides and waves. Field observations show that wave behaviour near breaking conditions is strongly affected by local depth during the vertical tidal excursion. The ridge and runnel morphology also plays an important role in channelling flows of swash bores and tide water. Short-term macro-scale variability probably reflects the influence of variable background conditions (coastal erosion, accretion, tidal range, exposure to storms and tidal currents. . . ). The morphodynamic characterization of these beaches is a preliminary step in understanding cross-shore coastal sediment exchanges as well as longshore sediment cell dynamics
Książki na temat "Littoraux – Modifications – Environnement"
McGuire, Chad J. Adapting to Sea Level Rise in the Coastal Zone: Law and Policy Considerations. Taylor & Francis Group, 2017.
Znajdź pełny tekst źródłaAdapting to Sea Level Rise in the Coastal Zone: Law and Policy Considerations. Taylor & Francis Group, 2018.
Znajdź pełny tekst źródłaMcGuire, Chad J. Adapting to Sea Level Rise in the Coastal Zone: Law and Policy Considerations. Taylor & Francis Group, 2013.
Znajdź pełny tekst źródłaMcGuire, Chad J. Adapting to Sea Level Rise in the Coastal Zone: Law and Policy Considerations. Taylor & Francis Group, 2017.
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