Letteratura scientifica selezionata sul tema "Falaises des (France)"
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Articoli di riviste sul tema "Falaises des (France)"
Robaszynski, Francis, e Francis Amédro. "Actualisation des distributions verticales de foraminifères dans les craies du Cénomanien-Turonien du Boulonnais (Nord de la France)". Annales de la Société géologique du Nord - (2e Série), Tome 21, n. 21 (1 dicembre 2014): 7–23. http://dx.doi.org/10.54563/asgn.923.
Testo completoAlbinet, Vincent. "La gestion défensive des falaises en France : pratiques et carences d'une tradition persistante". Hommes et Terres du Nord 1, n. 1 (1995): 65–72. http://dx.doi.org/10.3406/htn.1995.2492.
Testo completoPierre, Guillaume. "Structure et évolution des falaises gréseuses et argileuses du cap Gris-Nez (Boulonnais, France)". Géomorphologie : relief, processus, environnement 11, n. 4 (31 dicembre 2005): 297–310. http://dx.doi.org/10.4000/geomorphologie.578.
Testo completoLequint, Rémi, e Éric Fouache. "Contributions of a geoarchaeological study of Wissant Bay (Pas-de-Calais, France)". Annales de la Société Géologique du Nord, n. 19 (1 dicembre 2012): 35–38. http://dx.doi.org/10.54563/asgn.1364.
Testo completoLahousse, Philippe, e Guillaume Pierre. "Amount, rate and modes of the retreat of the chalk cliffs at cape Blanc-Nez (Pas-de-Calais, France)". Zeitschrift für Geomorphologie 47, n. 2 (15 luglio 2003): 215–34. http://dx.doi.org/10.1127/zfg/47/2003/215.
Testo completoHallégouët, Bernard. "Les crêtes littorales dunifiées du massif Armoricain, France : formation et évolution". Géographie physique et Quaternaire 35, n. 2 (1 febbraio 2011): 205–18. http://dx.doi.org/10.7202/1000437ar.
Testo completoPierre, Guillaume, e Philippe Lahousse. "Méthodes de quantification du recul des falaises : l'exemple du cap Blanc-Nez (Pas-de-Calais, France)". Hommes et Terres du Nord 1, n. 1 (2003): 32–43. http://dx.doi.org/10.3406/htn.2003.2833.
Testo completoPierre, Guillaume. "Durée de l’évolution marine et recul holocène d’un littoral à falaises, l’exemple du nord Boulonnais (France)". Quaternaire, n. 18/3 (1 settembre 2007): 219–31. http://dx.doi.org/10.4000/quaternaire.1069.
Testo completoLetortu, Pauline, Stéphane Costa, Abdelkrim Bensaid, Jean-Michel Cador e Hervé Quénol. "Vitesses et modalités de recul des falaises crayeuses de Haute-Normandie (France) : méthodologie et variabilité du recul". Géomorphologie : relief, processus, environnement 20, n. 2 (2 settembre 2014): 133–44. http://dx.doi.org/10.4000/geomorphologie.10588.
Testo completoMaquaire, Olivier, e Patrick Gigot. "Reconnaissance par sismique réfraction de la décompression et de l’instabilite des falaises vives du Bessin (Normandie, France)". Geodinamica Acta 2, n. 3 (gennaio 1988): 151–59. http://dx.doi.org/10.1080/09853111.1988.11105163.
Testo completoTesi sul tema "Falaises des (France)"
Mathelin, Jean-Christophe. "Le paléogène des falaises de Biarritz : révision biostratigraphique, paléoenvironnements et diapirisme". Paris 6, 1988. http://www.theses.fr/1988PA066406.
Testo completoAlbinet, Vincent. "Géomorphologie et gestion des falaises sur les côtes françaises de l'Atlantique et de la Manche". Lyon 2, 2000. http://www.theses.fr/2000LYO20014.
Testo completoDuguet, Timothée. "Le recul des falaises de craie de Normandie à l’échelle du Quaternaire, par approche terre-mer". Thesis, Normandie, 2019. http://www.theses.fr/2019NORMLH29.
Testo completoThe chalky cliff coastline of Normandy is characterized by a vertical cliff at the foot of which develops an intertidal coastal platform, which is subject to strong erosion, illustrated by the rapid retreat of its cliffs. This thesis deals with the qualification of the '' short-term (annual) and long-term (multi-millennium) erosion of the Normandy chalk cliffs by the use of various methodologies: 1) A first quantitative approach by photogrammetry was carried out on the Senneville-sur Fécamp cliff with the aim of quantify the erosion of the cliff face over a period of one and a half years, and identify the main factors responsible for this erosion. 2) The acquisition of bathymetric data in coastal areas has made it possible to identify specific morphologies of rocky platforms underwater, indicative of the past erosive dynamics of the cliffs. 3) A morphometric analysis by numerical method of worm basins sants de Seine-Maritime was built on the hanging valleys of the chalky coast. It made it possible to locate the cliff paleo-position on the eroded platform by projection of the slope profile. Thus, long-term recoil speeds of the coast have been extended to the whole of the Seine-Maritime coast. 4) Cosmogenic dating using the 10Be isotope was carried out on flint relics of the stripped platform made it possible to validate the rates erosion determined over the period of several millennia
Le, Cossec Jérôme. "La déformation gravitaires des côtes à falaises sédimentaires : modélisations numériques et expérimentales du secteur côtier Le Havre – Antifer (Haute-Normandie)". Le Havre, 2010. https://tel.archives-ouvertes.fr/tel-00531742.
Testo completoThis study focuses on the effect of clay and sand layers on the gravity instabilities affecting the coastal chalk cliffs located along the French eastern English Channel coastline. The impact of these potential detachment layers is investigated using finite element numeric simulations and experimental modeling under conditions of pore-fluid overpressure. Results indicate that the cliff sliding ratio is linked to the clays layers position with regard to cliff base. The cliff instability is characterized by horizontal seaward sliding guided by the Kimmeridgian clays at the base of the cliff or by the Albian Gault clays at a variable elevation in the cliff. The gravitational deformation is associated with a normal fault network in the chalk and with an inland propagation as a function of the clays layer elevation. Moreover, the clay layer stops the downward propagation of the deformation and acts as a decoupling layer
Basara, Noémie. "L'érosion des littoraux à falaises meubles en Bretagne : aléa, enjeux et gestion du risque". Thesis, Brest, 2019. http://www.theses.fr/2019BRES0066.
Testo completoThe erosion of soft cliffs results from the denudation of inherited, superficial formations covering the current coastlines. Their retreat rate is unsteady and often smaller than on accumulation coasts. This type of cliffs represents, in Brittany, 20 % of the coastline. Although their evolution is not fully understood, urbanization and human activities have grown denser at the top of these soft cliffs and behind, in recent decades. This thesis addresses coastal erosion with a focus on coastal risks induced by current urbanization of these soft cliffs at regional scale. The analysis tackles the hazard, stakes and management components in order to assess erosion risk and to draw near the vulnerability of these territories.A systemic approach is adopted, nesting temporal and spatial scales, with the objective to identify the components contributing to the vulnerability of these coastal territories.A chronicle of erosion events at regional scale is produced to present the spatio-temporal distribution of erosion over the 20th and 21st centuries and to analyze the generating factors.Focusing on six representative sites, aerial photographs (between 1950 and 2015) and photogrammetric monitoring (from 2017 to 2019) allow a quantitative study of the kinematics of soft cliffs retreat. A new paradigm for assessing and mapping the erosion risk for soft cliffs is proposed.Finally, indicators for stakes and risk management allow assessing vulnerability at these sites, and a survey conducted among regional stakeholders identifies gaps in risk management policies. According to their type, soft cliffs show a range of erosion responses, controlled by a combination of subaerial and marine factors, including rainfall. In Brittany, their retreat threatens mainly residential and agricultural lands. The vulnerability indicators highlight the paucity of regulations, local management strategies, dialogue and public awareness. They allow a better understanding of the challenges raised by risk erosion management
Le, Roy Maxime. "Contribution à la connaissance socio-écologique des opérations de restauration des hauts de falaises littorales de Bretagne". Electronic Thesis or Diss., Brest, 2019. http://www.theses.fr/2019BRES0034.
Testo completoMaritime clifftops might be considered as social-ecological systems where rare habitats (maritime heathland and clifftop vegetation) and multiples recreational uses (tourism, fishing, hiking) are coexisting. For more than fifty years, these uses are leading to important maritime clifftop habitat degradations. In reaction to these degradations, many restoration projects have been conducted for nearly 30 years. The thesis purpose is to carry out an assessment of restoration projects in order to improve future restoration projects by increasing knowledge about those social-ecological systems. This study is mostly based on 23 semi-structured interviews and 2 workshops conducted with restoration stakeholders, 465 vegetation monitoring plots set on 18 restored sites along Brittany’s coast and arthropods sampling conducted on three different sites.From these data, sociological, methodological, plant succession, arthropods and plant communities’ studies have been performed in order to put forward recommendations for future restoration projects planning and to highlight scientific needs. The need for a better consideration of restoration goals, in particular social goals, has been pointed out. Succession study has shown that, when habitat degradation is not too heavy, passive restoration is slow, but efficient on the long term. In highly degraded habitat thought, active restoration seems required to start restoration process. Complementary studies are still needed to adapt restoration method choice to different degradation and site contexts
Le, Roy Maxime. "Contribution à la connaissance socio-écologique des opérations de restauration des hauts de falaises littorales de Bretagne". Thesis, Brest, 2019. http://www.theses.fr/2019BRES0034/document.
Testo completoMaritime clifftops might be considered as social-ecological systems where rare habitats (maritime heathland and clifftop vegetation) and multiples recreational uses (tourism, fishing, hiking) are coexisting. For more than fifty years, these uses are leading to important maritime clifftop habitat degradations. In reaction to these degradations, many restoration projects have been conducted for nearly 30 years. The thesis purpose is to carry out an assessment of restoration projects in order to improve future restoration projects by increasing knowledge about those social-ecological systems. This study is mostly based on 23 semi-structured interviews and 2 workshops conducted with restoration stakeholders, 465 vegetation monitoring plots set on 18 restored sites along Brittany’s coast and arthropods sampling conducted on three different sites.From these data, sociological, methodological, plant succession, arthropods and plant communities’ studies have been performed in order to put forward recommendations for future restoration projects planning and to highlight scientific needs. The need for a better consideration of restoration goals, in particular social goals, has been pointed out. Succession study has shown that, when habitat degradation is not too heavy, passive restoration is slow, but efficient on the long term. In highly degraded habitat thought, active restoration seems required to start restoration process. Complementary studies are still needed to adapt restoration method choice to different degradation and site contexts
Kouah, Mohamed Amine Walid. "Μοdélisatiοn numérique des glissements de terrain : de l’initiatiοn à la transitiοn sοlide-fluide des géοmatériaux. : applicatiοn aux falaises des Vaches Νοires (Νοrmandie, France)". Electronic Thesis or Diss., Normandie, 2024. http://www.theses.fr/2024NORMC004.
Testo completoIn Normandy, the Vaches Noires cliffs present a unique badlands morphology, impacted by hydro-gravitational processes (landslides, mudflows, etc.) which are interrelated in space and time. During the initiation phase, the geomaterials are described by elasto-plastic behavior laws within the framework of soil mechanics. However, once these materials lose their solid properties post-initiation and transform into a fluid state, their behavior is characterized by fluid rheology. This is particularly evident in clayey mudflows where the initial elasto-plastic behavior of the reworked geomaterials transitions towards a viscous behavior under specific conditions. This research work, based on a multidisciplinary approach combining geotechnics and geomorphology, aims to understand the hydromechanical behaviors of these landslides and mudflows in their initiation phase. This is achieved through numerical modeling using the FLAC software, which employs a Lagrangian approach with the explicit finite difference method. Subsequently, our work focuses on modeling the solid-fluid transition of geomaterial behavior. Few models are able to take into account for both solid and fluid behaviors, as well as the transition between the two. We proposed an elasto-viscoplastic behavior law, combining an elasto-plastic law (Modified Cam-Clay) and a viscoplastic law (Herschel-Bulkley), and integrating the criterion of the local second- order work to monitor the transition between the two behaviors. This model was implemented in the FLAC software. Through a specific application, it was possible to demonstrate the feasibility of this coupling in accounting for the different states of these geomaterials
Letortu, Pauline. "Le recul des falaises crayeuses haut-normandes et les inondations par la mer en Manche centrale et orientale : de la quantification de l’aléa à la caractérisation des risques induits". Caen, 2013. https://tel.archives-ouvertes.fr/tel-01018719.
Testo completoThis thesis focuses on the quantification of two hazards that are coastal chalk cliff retreat in Upper Normandy and coastal flooding events in the central and eastern English Channel. These interdependent phenomena that generate damages have a little-known functioning which is characterized by events of varying intensity and frequency. The quantitative work is based on a systemic approach and on an approach that joints spatial and temporal scales together. This work integrates the frequency/intensity ratio, and therefore the effectiveness of the factors and processes responsible for their trigger. This work aims to:1) calculate the retreat rates and retreat rhythms of cliffs;2) identify the factors responsible for triggering falls; 3) quantify the production of debris and ablation rate of the cliff face; 4) assess the changes in frequency and intensity of coastal flooding events; 5) determine the origin of these changes; 6) think about the methods of mapping the hazards « coastal flooding » and « cliff retreat »
Giuliano, Jérémy. "Érosion des falaises de la région Provence-Alpes-Côte d’Azur : évolution et origine de la morphologie côtière en Méditerranée : télédétection, géochronologie, géomorphologie". Thesis, Nice, 2015. http://www.theses.fr/2015NICE4126/document.
Testo completoIncreasing interest in studying rocky cliff coastline morphogenesis allowed a better understanding of meso/macrotidal environments, but let microtidal environments apart. Thus we propose studying the dynamic of cliff coastlines erosion in Mediterranean in the South-East of France, through a multi-scale explorative approach. This doctoral work was supported by the region Provence-Alpes-Côte d’Azur, which identified a problematic in relation with coastal hazard management. The main objectives aim at characterizing on one hand how the temporal variability of meteorologic and climatic forcings affects the magnitude of erosion, and on other hand to which extent the geological setting controls the coastline morphology. The great challenge of this work therefore consists in optimizing the observation range in order discriminate erosive behaviours. Thus we propose assessing the contribution of four methods in determining whether erosion takes place (1) continuously at annual scale (boat-borne laser scanning surveys), (2) chronic at secular scale (aerial orthophographies)and (3) exceptional even (4) catastrophic over the characteristic timescales of Holocene and Quaternary (cosmic ray exposure dating from in-situ 36Cl and morphometric analysis). The interpretation of the results shows that erosion rate observed through the XXth century (order of magnitude of cm.y-1) is very low compared to meso/macrotidal environments. However at timescales ranging from pluri-secular (0.29 ka BP) to pluri-millenar (6.8 ka BP), exceptional storms surges of +3 NGF could initiate an erosion process resulting in the formation of horizontal shore platforms
Libri sul tema "Falaises des (France)"
German, Paul. Histoire de Falaise. Condé-sur-Noireau: C. Corlet, 1993.
Cerca il testo completoLatawski, Paul C. Falaise pocket. Stroud: Sutton, 2004.
Cerca il testo completoHart, S. Road to Falaise. Stroud: Sutton, 2004.
Cerca il testo completoFrédérick, Jeanne, a cura di. Objectif Falaise. Bayeux]: Heimdal, 2011.
Cerca il testo completoMartin, Blumenson. The battle of the generals: The untold story of the Falaise Pocket : the campaign that should have won World War II. New York: Morrow, 1993.
Cerca il testo completoBreuer, William B. Death of a Nazi army: The Falaise pocket. Chelsea, MI: Scarborough House, 1990.
Cerca il testo completoTucker-Jones, Anthony. Falaise: The flawed victory : the destruction of Panzergruppe West, August, 1944. Barnsley: Pen & Sword Military, 2008.
Cerca il testo completoZaloga, Steve. Operation Cobra 1944: Breakout from Normandy. Westport, Conn: Praeger, 2004.
Cerca il testo completoBraque, Miró, Calder, Nelson - Varengeville, un atelier sur les falaises. SILVANA, 2019.
Cerca il testo completoKilvert-Jones, Tim. Falaise (Battleground Europe). Pen & Sword Books Ltd, 2005.
Cerca il testo completoCapitoli di libri sul tema "Falaises des (France)"
Drew, William M. "Back on the Boards". In The Woman Who Dared, 420–41. University Press of Kentucky, 2023. http://dx.doi.org/10.5810/kentucky/9780813196831.003.0020.
Testo completoBrian, Éric. "Einstein au bord de la falaise. Les attentes des historiens parisiens après ses conférences au Collège de France (1922-1943)". In Einstein au Collège de France. Collège de France, 2020. http://dx.doi.org/10.4000/books.cdf.9432.
Testo completo