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Résultats de la recherche (14 résultats)

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  • Diffusion in landscape development models: on the nature of basic transport relations
  • Special Issue: Geomorphic processes/landscape evolution
  • In constructing large-scale landscape development models, processes must be appropriately represented over extended scales of space and time. Suitable methods must be found for the generalization of processes that capture the essential character
  • of landscapes as they evolve. The diffusion equation was introduced into geomorphological reasoning for this purpose. Diffusivities estimated in this study are compared with values derived in scarp studies and values adopted in landscape development models
  • Miocene glacial stratigraphy and landscape evolution of the western Asgard Range, Antarctica
  • The aim of this paper is to explain the landscape evolution and late Cenozoic glacial history. The AA. start with a description of the geographic setting and morphology of the western Asgard Range. They then describe surficial sediments that rest
  • Approaches to modelling long-term landscape evolution: lessons from ice sheet modelling
  • Special Issue: Geomorphic processes/landscape evolution
  • Advances in the understanding of physical principles underlying geophysical processes have enabled to develop complex numerical models of landscape evolution. This paper uses examples from glaciology that highlight the need for a balanced approach
  • The role of fluvial and glacial erosion in landscape evolution: the Ben Ohau Range, New Zealand
  • Special Issue: Geomorphic processes/landscape evolution
  • Special Issue: Geomorphic processes/landscape evolution
  • Standard histories of geomorphology tend to identify a basic conflict between 2 extremes: 1) timebound, desriptive regional studies of landscape evolution; and 2) timeless analysis of process mechanics. The A. argues that we need to ask a new type
  • Special Issue: Geomorphic processes/landscape evolution
  • is representative of the cirque component of the landscape but not of the whole alpine zone. The results emphasize the importance of considering the spatial variability of relief and the temporal variability of climate in assessing the representativeness of sediment
  • Special Issue: Geomorphic processes/landscape evolution
  • and the spatial distribution of erosion are crucial to the identification of long-term landscape evolution. The way ahead lies in the fact that catchment budgeting and geochemical studies have been able to provide solute uptake rates. If these can be related
  • Special Issue: Geomorphic processes/landscape evolution
  • A dated landscape history of the Allt nan Uamh valley in the Assynt area is constructed, spanning the last 300 ka, using geomorphological analysis, U-series speleothem dating, and existing cave surveys. The mean rate of valley deepening is estimated
  • paleoclimate and ice sheet history. Then they test these predictions from an examination of landscape development and surficial sediments in the Dry Valleys sector of the Transantarctic Mountains.
  • Special Issue: Geomorphic processes/landscape evolution
  • Special Issue: Geomorphic processes/landscape evolution
  • Special Issue: Geomorphic processes/landscape evolution
  • Special Issue: Geomorphic processes/landscape evolution
  • Special Issue: Geomorphic processes/landscape evolution