inscription
PORTAIL D'INFORMATION GÉOGRAPHIQUE

Résultats de la recherche (988 résultats)

Affinez votre recherche

Par Collection Par Auteur Par Date Par Sujet Par Titre Par ville ? Par pays ? Par continent ?
  • European boundaries in spatial researc
  • An extensive overview of concepts of boundaries is made. Concepts of natural versus artificial boundaries are discussed. The relation between the notions of boundary, limit, and border is provided and the concept of sovereignity analysed
  • . The investigation of the functions of boundaries are pointed to. A link is made between the concepts of boundary and spatial barriers. The erosion of European boundaries is analysed and the main factors of change in the functions of European boundaries
  • Geographical boundaries. (1 partie)
  • The problem of boundaries in geography is inseparable from regionalization, and it has been assumed that the problem of drawing boundaries is automatically part of the work of regionalization and mapping by means of background shading. Some
  • geographers are examining them through the prism of new concepts and methods. 5 Articles: 1. Geographical boundaries: contradictions and paradoxes, 2. Basic types of geographical boundaries, 3. Geographical boundaries as a factor in region-formation, 4
  • . On the problem of studying the boundaries of economic-geographic systems, 5. Typology and mapping of boundaries of the BEA Economic Areas of the United States.
  • Resistance to flow past deformable boundaries
  • An hypothesis from which a general principle covering deformation of alluvial boundaries may be developed is proposed, namely flow of fluid past a deformable boundary will deform the boundary so as to increase the resistance to flow. Upon attainment
  • of a local maximum of resistance to flow the boundary shape will cease to change.
  • Study of district boundaries : a neglected theme
  • Boundary objects and the social construction of GIS technology
  • The AA. examine several instances of how GIS technology involves social negotiation by using a construct of boundary objects developed in a social constructivist framework. Boundary objects stabilize relationships through the negotiation of flexible
  • Geographical boundaries. (2 partie)
  • 8 articles: 1. The boundaries of a nodal region as a factor in the formation of its territorial structure, 2. The problem of delimiting an urbanized area (with reference to the Moscow region), 3. Types of interaction between transport routes
  • and linear obstacles, 4. Geographical boundaries and linear conditions for the formation of a basic framework for settlement (with reference to the Caucasus region), 5. The configuration of boundaries and shapes of ethnic areas, 6. Defining the boundaries
  • of natural systems and combined natural-engineering systems, 7. Landscape-geochemical boundaries and barriers, 8. Massive and contact geocomponents.
  • Categories, borders and boundaries
  • Boundary ; Cognitive process ; Frontier ; Perception ; Post-structuralism
  • The A. argues that the key problems with categories emerge from the contradictory ways their boundaries are intellectually and cognitively understood. By integrating poststructural insights into the role categories play as containers in cognitive
  • processes, the paper argues that the boundaries of categories should be understood as always only partially formed and incomplete.
  • International boundaries and territorial stability in the Middle East : an assessment
  • Asia ; Boundary;Frontier ; Coastal waters ; Conflict ; Geopolitics ; Middle East ; National territory ; Political geography
  • International boundaries in the Middle East are less likely to represent a major source of international stress than is generally perceived. Current political processes seem to be working in favour of the status quo and territorial stability
  • . The major maritime boundary disputes are concentrated in the Persian Gulf. Given political will to resolve problems of delimitation, the ultimate demarcation of boundaries should progress without serious conflict between states in the region.
  • A study on the lower boundary of Quaternary in North China. Stratigraphic significance of the Matuyama/Gauss boundary in Loess and the Quaternary: Chinese and Hungarian case studies.
  • On the basis of biostratigraphical, magnetostratigraphical, paleoclimatological and sedimentological studies of the continuous Pliocene-Pleistocene sequences, the M/G boundary is found an important marker in North China. The evidence of mammals
  • indicate that the horizon bearing Equus is consistent with the M/G boundary approximately. (DLO).
  • Cadastral and marine boundary challenges in Trinidad
  • Boundary shear in channel with flood plain. Discussion
  • On the permian-triassic boundary in southern China.
  • Boundaries. III. Boundaries of Afghanistan
  • Boundary of seismic crustal deformation and its implication in tectonic morphogenesis of Japan in Geography and its boundaries La géographie et ses frontières Geographie und ihre Grenzen.. (In Memory of Hans Boesch)
  • Border versus boundary at La Frontera
  • Boundary ; Delimitation ; Frontier ; Institution ; Mexico ; Power ; State ; United States of America
  • Geostatistics, spatial rate of change analysis and boundary detection in plant ecology and biogeography
  • Biogeography ; Boundary ; Cluster analysis ; Concept ; Ecology ; Geostatistics ; Krigeage ; Spatial analysis ; Spatial autocorrelation ; Terminology ; Vegetation
  • rate of change analysis and boundary detection in the context of community and ecosystem boundaries and to provide pointers for future research.
  • Plate boundary tectonics and oceanic island geomorphology in The geomorphology of plate boundaries and active continental margins.
  • This paper illustrates how studies of the geomorphology of oceanic islands can contribute to the understanding of nearby plate boundaries. For this purpose, an oceanic island is defined as one within an ocean basin. Case studies are given of three
  • Boundary ; Carbonate rock ; Karst ; Karstic landform ; Lithology ; Sedimentology
  • Boundaries of former covered and uncovered karsts can be determined through the analysis of the features developed along rock boundaries since the latter survive the denudation of the sediment cover. Not only the conditions of coverage in a karst
  • area i.e. the previous existence of uncovered areas but also their boundaries can be determined through the detection of rock boundaries. Since the altitudes of rock boundaries framing uncovered karsts were nearly identical, the different elevations
  • of the neighbouring uncovered areas and the extent and nature of the uplift of a single uncovered karst area could be deduced from the present altitude differences of the features developed along rock boundaries. - (L'A.).
  • Boundary ; Cartography ; Cultural landscape ; Landscape ; Plateau ; Poland
  • The aim of this work has been to define the course of the boundary between the Miechowska Upland and Proszowicki Plateau, on the basis of research on landscape elements and landscape structure along a preliminarily allocated border zone between
  • those regions, as well as to determine the ranks of the geocomplexes building this boundary and the regions which are separated by this boundary. The field mapping was carried out on a selected 17 km2 area of border zone. Features of bedrock and relief
  • and landscape structure determine the course of the boundary referred to, that between the mentioned regions comprising geocomplexes of individual terrain rank located on the eastern slopes of the Biórkówka valley as well as its right-bank tributary. Mesoregions
  • within the same macroregion arte also identified. The course of the boundary coincides with the line joining the eastern most Cretaceous outcrops. - (BJ)
  • Landscape and plant community boundaries in biogeography
  • Biodiversity ; Biogeography ; Boundary ; Concept ; Ecology ; Ecosystem ; Ecotone ; Fractal geometry ; Geographical information system ; Land use ; Landscape ; Phytosociology ; Plant species ; Remote sensing ; Scale ; Spatial analysis ; Statistics
  • This article critically reviews past and present concepts relating to plant communities, the transitional areas and boundaries between them and highlights the potential of a variety of methods for future research on this topic. For the purposes
  • of this article, the term transitional areas defines a group of landscape boundaries that represents the zones between plant communities, as opposed to the sharper demarcations that usually occur between land-use types. Transitional areas therefore represent
  • a subset of landscape boundaries.