inscription
PORTAIL D'INFORMATION GÉOGRAPHIQUE

Résultats de la recherche (192 résultats)

Affinez votre recherche

Par Collection Par Auteur Par Date Par Sujet Par Titre
  • Arid geomorphology
  • Aeolian features ; Aerosol ; Alluvial cone ; Arid area ; Dune ; Duricrust ; Dust ; Geochronology ; Geomorphology ; Remote sensing
  • 1997 has seen further evidence of the wide variety of issues and approaches impacting studies of the geomorphology of drylands. The dynamic nature of this field of geomorphology is also indicated by the number of special or theme sessions devoted
  • to this speciality at major meetings in 1997, including annual meetings of the Association of American Geographers and the Geological Society of America, as well as the 4th International Conference on Geomorphology in Bologna, Italy.
  • 1998
  • Geomorphological mapping for hazard assessment in a neotectonic terrain
  • Geomorphological map ; Heavy rain ; Landslide ; Mountain ; Natural hazards ; Neotectonics ; Road ; Rockfall ; Seismicity ; Taiwan ; Thematic mapping ; Tropical zone ; Vertical movement
  • This paper describes the use of geomorphological mapping in the assessment of the natural hazards along a highway in eastern Taiwan, Taroko Gorge. Detailed records of the size and occurrence of rockfalls and landslides affecting the highway have
  • been obtained and analyzed and, by combining these data with the geomorphological and geological data, a hazard assessment map has been produced for the highway. This map may be used to improve the development of the highway, decreasing the danger
  • 1998
  • Generalized linear modelling in geomorphology
  • Technical and software bulletin 1998
  • Appennino ; Canada ; Forecast ; Geomorphology ; Glacial surge ; Italy ; Mass movement ; Methodology ; Modelling ; Statistics ; Umbria ; Yukon Territory
  • in geomorphology are given. The first examples involves glacier surging and the second involves landslide susceptibility. The examples demonstrate the relevance of GLM to many common problems in geomorphology.
  • 1998
  • Decoherence, quantum theory and their implications for the philosophy of geomorphology
  • Concept ; England ; Geomorphology ; Philosophy of sciences ; Quantum mechanics ; United Kingdom
  • This paper draws lessons from quantum mechanics and the related concepts of decoherence and entanglement to explore the theoretical limitations of both of these existing approaches to geomorphology. It is suggested that empiricist and realist
  • . It concludes by suggesting that an idealist approach to geomorphology - one that recognizes the primacy of consciousness - can better appreciate the unpredictable and probabilistic nature of the world.
  • 1998
  • Asia ; Geomorphology ; Himalaya ; India ; Mass movement ; Moraine ; Mountain ; Pakistan ; Permafrost ; Rock glacier ; Sediment transport
  • This paper will examine the characteristics and distribution of rock glaciers in the Karakoram Mountains and northern India to highlight importance as geomorphological agents and to assess geomorphological significance.
  • 1998
  • Tectonic geomorphology in the Shanxi Graben System, northern China
  • Cenozoic ; China ; Earthquake ; Fault ; Graben ; Quaternary ; Shanxi ; Structural geomorphology ; Tectonics ; Volcanism
  • 1998
  • Special issue. Application of remote sensing and GIS in geomorphology
  • Computer analysis of integrated digital data sets can be exploited for geomorphological classification using automated methods developed in the remote sensing community. In this study, geomorphological classification in a moderate- to high-relief
  • area dominated by slope processes in southwest Yukon Territory, is performed with a combined set of geomorphometric and spectral variables in a linear discriminant analysis. An automated method was developed to find the boundaries of geomorphological
  • objects and to extract the objects as groups of aggregated pixels. The geomorphological objects selected are slope units.
  • 1998
  • Applied geomorphology ; Climatic geomorphology ; Concept ; Earth surface processes ; Ecology ; Geographic school ; Geomorphological mapping ; Geomorphology ; Methodology ; Russian school ; Structural geomorphology
  • 1998
  • The use of duricrusts and topographic relationships in geomorphological correlation : conclusions based in Australian experience
  • Australia ; Duricrust ; Ferricrust ; Geomorphology ; Inverted relief ; Laterite ; Palaeoclimate ; Silicrete ; South Australia ; Stratigraphic correlation ; Surface deposits
  • 1998
  • Cenozoic climatic change in southern Africa : the evidence from geomorphology, 1967-1996, a personal view
  • Cenozoic ; Climatic variation ; Geomorphology ; Karst ; Palaeogeography ; South Africa
  • 1998
  • Palaeofluvial geomorphology in southern Africa : a review
  • This article presents an overview of palaeofluvial geomorphology research in southern Africa, including South Africa, Zimbabwe, Namibia, Lesotho, Swaziland and Botswana. It is suggested that southern Africa fluvial systems have shown large-scale
  • 1998
  • Climatic geomorphology ; Concept ; Earth surface processes ; Geographic school ; Geomorphology ; Structural geomorphology
  • 1998
  • Geomorphological signatures : classification of aggregated slope unit objects from digital elevation and remote sensing data
  • Automated mapping ; Canada ; Classification ; Discriminant analysis ; Geomorphology ; Numerical model ; Remote sensing ; SPOT ; Slope gradient ; Spectral signature ; Yukon
  • The concept of a geomorphological signature is developed for classifying and mapping slope units with an automated procedure for analysing digital elevation and remote sensing data. Slope units are extracted from a digital elevation model (DEM
  • 1998
  • Alps (The) ; Austria ; Cenozoic ; Geomorphogenesis ; Geomorphology ; Glacial features ; Landform evolution ; Mountain ; Structural geomorphology ; Upper Austria
  • 1998
  • Geomorphology, tectonism and sedimentation in the Nal region, western India
  • Delta ; Eustatism ; Geomorphology ; Gujarat ; India ; Palaeohydrology ; Quaternary ; Remote sensing ; Sea level ; Tectonics
  • 1998
  • Drainage network ; Fault ; Geomorphometry ; Quaternary ; Structural geomorphology ; Taiwan ; Tectonics ; Vertical movement ; Watershed
  • This paper demonstrates that a combined study, based on geomorphological, stratigraphical and tectonic analysis, allows precise understanding of the structure and evolution of an active fold. The aims of the study are to document : 1) the structures
  • that accommodate lateral propagation on an active fold; 2) the orientation of the principal stress-axis inferred from fault population analysis in the pretectonic Toukoshan Formation and syntectonic deposits; and 3) the tectonic geomorphology of the Pakuashan
  • 1998
  • Geomorphology and late Holocene climatic change in Northeastern Spain
  • Archaeology ; C 14 dating ; Climatic variation ; Geochronology ; Geomorphology ; Holocene ; Human impact ; Semi-arid area ; Slope ; Slope deposit ; Slope dynamics ; Spain
  • 1998
  • Remotely-sensed regional-scale evapotranspiration of a semi-arid Great Basin desert and its relationship to geomorphology, soils, and vegetation
  • Special issue. Application of remote sensing and GIS in geomorphology
  • 1998
  • Petrologic and structural controls on geomorphology of prehistoric Tsergo Ri slope failure, Langtang Himal, Nepal
  • Glacial valley ; Himalaya ; Landslide ; Natural hazards ; Neotectonics ; Nepal ; Petrology ; Slope ; Slope dynamics ; Soil erosion ; Structural geomorphology
  • 1998
  • Geomorphogenesis ; Geomorphology ; Hungary ; Landform evolution ; Landslide ; Slope dynamics ; Terrace ; Topography
  • The basic concept of the elaboration was a geomorphological analysis to be carried out jointly with that of its framing river valleys (Hernád, Bódva) constituting the relief boundary. The general evolution of the Hernád Valley : the article provides
  • an analysis of the present-day geomorphological and economic role of the high bluffs suggesting a substantial part played by slumps in their ongoing formation, which is a specific feature in the area of the North Hungarian Mountains. A similar analysis
  • 1998