Academic literature on the topic 'Modèle numérique de terrain intégré'
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Journal articles on the topic "Modèle numérique de terrain intégré"
Yao, Théodore Koffi, Olivier Fouché, Emmanuel Konan Kouadio, Marie-Solange Oga, and Théophile Lasm. "Modélisation de la surface piézométrique des aquifères fissurés en zone de socle précambrien métamorphisé : cas du bassin versant du Sassandra (sud-ouest de la Côte d’Ivoire)." Revue des sciences de l’eau 28, no. 2 (July 7, 2015): 105–17. http://dx.doi.org/10.7202/1032293ar.
Full textMerot, Ph, C. Gascuel-Odoux, C. Walter, X. Zhang, and J. Molenat. "Influence du réseau de haies des paysages bocagers sur le cheminement de l'eau de surface." Revue des sciences de l'eau 12, no. 1 (April 12, 2005): 23–44. http://dx.doi.org/10.7202/705342ar.
Full textRezgui, Atef, Naceur Ben Maiz, and Mahmoud Moussa. "Fonctionnement hydrodynamique et écologique du Lac Nord de Tunis par modélisation numérique." Revue des sciences de l'eau 21, no. 3 (October 16, 2008): 349–61. http://dx.doi.org/10.7202/018781ar.
Full textSecretan, Y., M. Leclerc, S. Duchesne, and M. Heniche. "Une méthodologie de modélisation numérique de terrain pour la simulation hydrodynamique bidimensionnelle." Revue des sciences de l'eau 14, no. 2 (April 12, 2005): 187–212. http://dx.doi.org/10.7202/705417ar.
Full textDonnay, Jean-Paul. "Détermination En Mode Maillé Du Champ D'intervisibilité Dans Un Modèle Numérique De Terrain." Cartographica: The International Journal for Geographic Information and Geovisualization 29, no. 3-4 (October 1992): 75–82. http://dx.doi.org/10.3138/a226-4j50-242l-3h10.
Full textLucie, Xavier, Sylvie Durrieu, Anne Jolly, Sylvain Labbé, and Jean-Pierre Renaud. "Comparaison de Modèles Numériques de Surface photogrammétriques de différentes résolutions en forêt mixte. estimation d'une variable dendrométrique simple : la hauteur dominante." Revue Française de Photogrammétrie et de Télédétection, no. 213 (April 26, 2017): 143–51. http://dx.doi.org/10.52638/rfpt.2017.197.
Full textBelouard, Thierry, Nicolas Py, Grégoire Maillet, Dominique Guyon, Céline Mérédieu, Michel Pausader, and Nicolas Champion. "Pinastéréo - Estimation de la hauteur dominante et de la biomasse forestière dans le massif des Landes de Gascogne à partir d'images stéréoscopiques Pléiades." Revue Française de Photogrammétrie et de Télédétection, no. 209 (November 18, 2014): 133–39. http://dx.doi.org/10.52638/rfpt.2015.134.
Full textRezak, Salima, Jean-Pierre Laborde, and Mohamed Errih. "Validation d'un modèle numérique de terrain adapté à la modélisation hydrologique régionale sur l'Algérie du Nord." Hydrological Sciences Journal 57, no. 5 (May 18, 2012): 928–41. http://dx.doi.org/10.1080/02626667.2012.685742.
Full textRaclot, Damien, Christian Puech, Nicolle Mathys, Bruno Roux, Andres Jacome, Jean Asseline, and Jean-Stéphane Bailly. "Photographies aériennes prises par drone et Modèle Numérique de Terrain : apports pour l'observatoire sur l'érosion de Draix." Géomorphologie : relief, processus, environnement 11, no. 1 (April 1, 2005): 7–20. http://dx.doi.org/10.4000/geomorphologie.209.
Full textOularé, Sékouba, Alexis Kassi Kouamé, Mahaman Bachir Saley, Gabriel Etienne Ake, Michel Amani Kouassi, Gnangui Christian Adon, Fernand Koffi Kouamé, and René Therrien. "Estimation de la conductivité hydraulique des zones discrètes de réseaux de fractures à partir des charges hydrauliques : application au bassin versant du N’zo (ouest de la Côte d’Ivoire)." Revue des sciences de l’eau 29, no. 3 (February 13, 2017): 279–301. http://dx.doi.org/10.7202/1038928ar.
Full textDissertations / Theses on the topic "Modèle numérique de terrain intégré"
Al, Bitar Ahmad. "Modélisation des écoulements en milieu poreux hétérogènes 2D / 3D, avec couplages surface / souterrain et densitaires." Phd thesis, Toulouse, INPT, 2007. http://oatao.univ-toulouse.fr/7712/1/al_bitar.pdf.
Full textKassouk, Zeineb. "Apports de la télédétection, de la géomatique et du modèle numérique de terrain topo-bathymétrique intégré pour l'aide à la gestion des milieux humides littoraux : application à l'estuaire de la Rance (Ouest de la France) et au lac Ichkeul (Nord de la Tunisie)." Thesis, Paris Est, 2009. http://www.theses.fr/2009PEST1069.
Full textCoastal wetlands are an important component of the natural environment of the coastal zone. Wetlands are affected by hydrologic and geomorphic controls that must be taken into consideration when attempting to understand wetland responses to disturbance, provide information for better wetland management, or aid in the restoration of lost habitat. The functioning of coastal wetlands is a result of complex linking of distinct biological, geomorphologic and human factors interacting in varying scales. Natural water circulation and water quality can altered the natural behaviours of that ecosystem. Remote sensing techniques (pixel based classification methods) and geographic information system are well used herein in monitoring coastal wetlands areas. But they are confronted to many difficulties such as combing together both onshore and offshore data and process and discriminate wetlands from uplands areas. The overall goal of our study is to develop improved methods for wetland monitoring and management in two cases studies those are located in different areas and climate zones, which are : - The Rance estuary in Western France is subject to many morphologic and biological modifications due to the management of the Rance tidal power station since 1966. The construction had required isolating completely open sea from the Rance estuary for more three years. Since that time, some environmental changes took place in the Rance estuary area, such as modifications and disappearance of sandbanks in some areas, leading to a new equilibrium since 1978. - The Ichkeul Lake in the North of Tunisia is one of the most important wetlands in the Mediterranean region. However, the decreasing of water discharge into the lake caused by the damming of three of the six major rivers feeding the lake coincided with severe drought periods, restricting supplies of fresh water, and modifying saltmarsh vegetation communities and other significant wetland degradation. Furthermore, one specific objective of our work is to investigate the capabilities of the object oriented classification methods combined to integrated topographic-bathymetric digital terrain model in those areas. In the case study of the Rance estuary morphological evolution after the settlement of the tidal power station is done by the comparison of the integrated Topographic-Bathymetric Digital Terrain Model (DTM), combining the 1953 bathymetric data, and 1957 topographic ones, with bathymetric profiles acquired in 1982 and 1998. It shows that increase of topography corresponding to accretion is frequently observed in coves characterised by low current energy. In contrast, the places exposed to high currents present generally strong eroded features, which decrease and erode the topography. The meandering of channels has also observed through time. The use of object-oriented classification of aerial photographs, acquired between 1953 and 2002 and the integrated DTM of salt marshes area in the Rance estuary, enhanced their surface regression from 1953 to 1978. It shows their stability since, due to hydrologic modifications induced in the Rance estuary after the tidal power plant management such us the change of tidal range and the period of slack water. In the case study of the Ichkeul, the application of object-oriented classification approach to identify Ichkeul wetland vegetation is based on the following multi-spectral imagery: the MSSLandsat (1972), TM-Landsat (1987), ETM+ Landsat (2001) and Aster-Terra (2007) acquired in growth period of vegetation. Results show the declining of vegetation communities in Ichkeul wetlands exposed to alternative fresh and salt-water diversion. Sarcocornia fruticosa, communities, Hordeum communities are the largest units in the study area. The Bolboschoenus communities is absent in the 1987 and 2001 vegetation maps. This is conformed by previews studies witch are showing that due to dry periods and rivers damming the Bolboschoenus disappeared for many years. The monitoring the lake Ichkuel sedimentation process was done by comparison of five sets of bathymetric data taken in 1967, 1983, 1986, 1993 and 2003. It shows the alteration of sedimentation process in the Ichkeul Lake as behaviour of the coastal zone after the settlement of dams. To conclude, owing to difference of climatic and hydrodynamic characteristics the responses of coastal wetland to natural and human will vary according to difference of their geomorphology and ecology. The Rance estuary seams to have new ecology balance ten years after the settlement of the tidal power station. However, the Ichkeul Lake is still affected by anthropogenic and climatic factors. Therefore, the used methodology provides detailed information on wetland vegetation and adjacent land-use/land-cover types in schorre wetland areas in the cases of the Rance estuary, and the Ichkeul marches areas. This technique is combining both integrated DTM and remote sensing data that is a useful tool for wetland vegetation monitoring and for resolve some major classification confusions that occur in such wetland areas
Bakari, Bilel, and Bilel Bakari. "Identification automatique des vallées glaciaires à partir d'un modèle numérique de terrain." Master's thesis, Université Laval, 2019. http://hdl.handle.net/20.500.11794/37413.
Full textLa vallée glaciaire est une forme de relief associée aux montagnes qui ont été affectées par une glaciation régionale. L’étude de cette forme de relief aide les chercheurs à mieux connaitre le développement du système glaciaire régional qui reflète les changements climatiques globaux. La tâche d’identification de ces formes sur un modèle numérique de terrain est primordiale pour toutes les études géomorphologiques ou environnementales. Avec le développement desSystèmes d’Information Géographique et des outils informatiques, l’automatisation de cette tâche devient une solution pour la diminution de la durée et du coût exigés par la méthode manuelle. Cependant, les méthodes automatiques actuelles comme la classification morphométrique ou l'analyse d’images par objets (Object Based Image Analysis) sont limitées pour l'identification d'une forme de relief entière comme la vallée glaciaire. Ces méthodes sont basées en général sur des approches de classification du terrain en éléments de relief sans la prise en considération du contexte géomorphologique. À cet égard, nous avons comme objectif le développement d'une méthode automatique d'extraction des formes des vallées glaciaires. Notre méthode est basée sur l’idée de la saillance issue de la cognition humaine en matière des formes de relief. Nous admettons que la vallée glaciaire est définie par l’assemblage spatial du fond et des versants dans un contexte géomorphologique donné. L’identification de ces formes est réalisée à partir de l’identification des cours d’eau et des contreforts comme éléments saillants de ces composants et par leur assemblage autour d’une saillance globale, le talweg. Nous avons appliqué notre méthode automatique sur des modèles numériques de terrain de différentes zones glaciaires parmi lesquelles la vallée Jacques-Cartier au Québec. Nous avons obtenu des entités spatiales qui caractérisent l'étendue géographique de la vallée glaciaire et de ses éléments composants accompagnées de leurs indicateurs de forme.
The glacial valley is a landform associated with mountains that have been affected by regional glaciation. The study of this kind of valley helps researchers to better understand the development of the regional glacial system that reflects global climate change. The task of identifying these forms on a digital elevation modelis essential for all geomorphological or environmental studies. With the development of GIS and IT tools, the automation of this task becomes a solution for reducing the time and cost required by the manual method.However, current automatic methods like morphometric classification or Object Based Image Analysis are limited when trying to identify an entire landform such as the glacial valley. These methods are generally based on land classification approaches of terrain elements without taking into consideration the geomorphological context. In this respect, we aim to develop an automatic method for extracting glacial valleys. Our method is based on the idea of salience resulting from human cognition of relief. We admit that the glacial valley is defined by the spatial assembly of the bottom and slopes in each geomorphological context. The identification of these forms is based on the identification of streams and foothills as salient elements of its components and their assembly around a global salience, the thalweg. We applied our automatic method on digital terrain models of different glacial zones, including the Jacques-Cartier Valley in Quebec. We obtained spatial entities that characterize the geographic extent of the glacial valley and its component elements accompanied with form indicators.
The glacial valley is a landform associated with mountains that have been affected by regional glaciation. The study of this kind of valley helps researchers to better understand the development of the regional glacial system that reflects global climate change. The task of identifying these forms on a digital elevation modelis essential for all geomorphological or environmental studies. With the development of GIS and IT tools, the automation of this task becomes a solution for reducing the time and cost required by the manual method.However, current automatic methods like morphometric classification or Object Based Image Analysis are limited when trying to identify an entire landform such as the glacial valley. These methods are generally based on land classification approaches of terrain elements without taking into consideration the geomorphological context. In this respect, we aim to develop an automatic method for extracting glacial valleys. Our method is based on the idea of salience resulting from human cognition of relief. We admit that the glacial valley is defined by the spatial assembly of the bottom and slopes in each geomorphological context. The identification of these forms is based on the identification of streams and foothills as salient elements of its components and their assembly around a global salience, the thalweg. We applied our automatic method on digital terrain models of different glacial zones, including the Jacques-Cartier Valley in Quebec. We obtained spatial entities that characterize the geographic extent of the glacial valley and its component elements accompanied with form indicators.
Che, Xiaomin. "Extraction et reconstruction du réseau hydrographique à partir du modèle numérique de terrain." Aix-Marseille 2, 2005. http://www.theses.fr/2005AIX22073.
Full textBatton-Hubert, Mireille. "Intégration d'une simulation spatio-temporelle à un modèle topologique et numérique de terrain." Paris 6, 1993. http://www.theses.fr/1993PA066116.
Full textLespagne, Christian. "Traitement statistique de modèles numériques du terrain topographique." Paris 11, 1985. http://www.theses.fr/1985PA112376.
Full textMorlans, Richard. "Génération des trajectoires d'un robot d'exploration planétaire utilisant un modèle numérique de terrain issu d'images prises par satellite." Montpellier 2, 1992. http://www.theses.fr/1992MON20119.
Full textAdiyaman, Özlem. "Relations entre volcanisme et tectonique en contextes de collision et de decrochement (Turquie) : approche par analyse structurale, géochimie, imagerie spatiale, modèles numériques de terrain et systèmes d'information géographique." Paris 6, 2000. http://www.theses.fr/2000PA066486.
Full textGalloo, Jean-Claude. "Pollution atmosphérique par les oxydants photochimiques : étude sur le terrain et par simulation numérique au moyen d'un modèle lagrangien." Lille 1, 1985. http://www.theses.fr/1985LIL10138.
Full textMemier, Michel. "Stéréophotogrammétrie numérique : calcul de M.N.T. par corrélation automatique d'images SPOT." Université Joseph Fourier (Grenoble), 1991. http://www.theses.fr/1991GRE10083.
Full textReports on the topic "Modèle numérique de terrain intégré"
Boivin, R., H. Larocque, and S. J. Paradis. Étapes de création d'un modèle numérique de terrain et d'une carte thématique avec relief en utilisant le logiciel ArcInfo et le module GRID. Natural Resources Canada/ESS/Scientific and Technical Publishing Services, 2002. http://dx.doi.org/10.4095/213049.
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