Search results for "Information géographique"
showing 10 items of 15 documents
The Bronze Age in Lorraine: a proposed model of the settlement
2022
Thirty years of assiduous preventive archaeology practice in Lorraine have built up a stock of data that can be used for numerous archaeological problems with a spatial focus.For the Bronze Age, as for the other chronological periods, the archaeological occupations discovered during diagnostics and excavations are strongly correlated with current developments (motorways, TGV, housing estates, quarries, etc.). These occupations must be discussed in order to estimate their spatial representativeness. Similarly, the landscape characterisation, in which the occupations highlighted are situated, is an important step in defining the types of settlement.As most of the data comes from the national …
Distribution de la température et de la végétation en Baie du Rois, Svalbard (79°), mise en place d'une approche spatiale formalisée
2006
International audience; Le changement climatique est un problème majeur, surtout en Arctique. Ce constat global doit être précisé afin d'appréhender les conséquences du phénomène car son impact se module dans l'espace selon les caractéristiques propres à chaque milieu. L'aire d'étude est située au Svalbard où des données, de différentes sources, sont collectées sur le terrain. Elles sont ensuite traitées au sein d'un système d'information géographique afin de modéliser les variations spatiales à grande échelle de la température et de la végétation.
Introduction of a spatial layer in the Semantic Web framework : a proposition through the Web platform ArchaeoKM
2011
Spatial technology has gained momentum under database systems. More specifically, the spatial operations and spatial functions are used to carry out spatial analysis which can be executed through these database systems. In addition, there has been significant amount of research in the field of the geospatial ontology domain in order to achieve the semantic interoperability between different data sources. Although, data interoperability is one of the main objectives of the Semantic Web technologies, the potentiality of the underlying knowledge tools and techniques have not been completely identified. With the growing influence of the Semantic Web technologies towards the application based on…
Human settlement dynamics and alluvial dynamics of the Rhine River during the Holocene: Geoarchaeology of the site of Oedenburg (Haut-Rhin, France).
2007
The relationship between alluvial dynamics and control parameters such as climate are well known and understood at plurimillennial and pluriannual time-scales. But it is not really the case at multicentennial and multidecennal time-scales compatible with human society settlement time-scales. In a present and near future context, when human settlement may be affected by strong climatic variation, alluvial dynamics understanding is however a major centre of attention to the development of efficient models. To approach this scale-related question, a segment of the Upper Rhine River presenting both anastomosed and braided was investigated. This area also gives us the opportunity to study settle…
Continuum : un modèle spatio-temporel et sémantique pour la découverte de phénomènes dynamiques au sein d’environnements géospatiaux
2015
There is a need for decision-makers to be provided with both an overview of existing knowledge, and information which is as complete and up-to-date as possible on changes in certain features of the biosphere. Another objective is to bring together all the many attempts which have been made over the years at various levels (international, Community, national and regional) to obtain more information on the environment and the way it is changing. As a result, remote sensing tools monitor large amount of land cover informations enabling study of dynamic processes. However the size of the dataset require new tools to identify pattern and extract knowledge. We propose a model to discover knowledg…
Acquérir, gérer et archiver les données
2011
Chapitre portant sur la description des données géographiques : formats de données, géoréférencement, métadonnées, acquisition...
La valeur des paysages périurbains dans un marché immobilier en France
2008
Collection : Information Géographique et Aménagement du Territoire - Traité IGAT; National audience
SIGA3D : modélisation, échange et visualisation d'objets 3D du bâtiment et d'objets urbains géoréférencés ; application aux IFC pour la gestion techn…
2012
This thesis defines a new approach in urban and building facility management. A production and information management process of the building, its immediate environment and urban objects has been defined. It allows to manage these objects throughout their life cycle, in a concept called Urban Facility Management. This technology relies on an Urban Information Model to model all the information of cities and buildings in a dynamic and evolutive ontology. A mechanism for geometric and semantic levels of detail has also been defined to support the scalability of such a system. Indeed, the number of objects to be managed in a scene, compared to a building modeling system, is much higher, as the…
Geostatistical computing of acoustic maps in the presence of barriers
2009
Acoustic maps are the main diagnostic tools used by authorities for addressing the growing problem of urban acoustic contamination. Geostatistics models phenomena with spatial variation, but restricted to homogeneous prediction regions. The presence of barriers such as buildings introduces discontinuities in prediction areas. In this paper we investigate how to incorporate information of a geographical nature into the process of geostatistical prediction. In addition, we study the use of a Cost-Based distance to quantify the correlation between locations.