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  • Chine ; Domaine aride ; Dune ; Désert ; Eolien ; Gansu ; Modèle ; Pente de versant ; Seuil ; Transport éolien ; Vent
  • A computational fluid dynamics (CFD) model is used to simulate a stable wind blowing over slope beds of varying height and coupled with the slope-compensating fluid threshold friction velocity formula. Based on the CFD-based model, quantitative
  • 2008
  • Bassin-versant ; California ; Cône de déjection ; Erosion glaciaire ; Etats-Unis ; Glaciation ; Modèle conceptuel ; Pléistocène ; Sierra Nevada ; Transport sédimentaire
  • In this paper, the AA. present data and a conceptual model of how sediment storage and yield vary betwen glacially modified and unmodified catchments in the eastern Sierra Nevada. They explore the relationship between the degree of glaciation
  • 2008
  • Solution of the linear diffusion equation for modelling erosion processes with a time varying diffusion coefficient
  • 2008
  • important component of self-organization in biological systems varies. Hedges and waves can develop endogenously with a constant wind, and so can be considered self-organizing. Most ribbon forests seem to be dominated by exogenous forces.
  • 2008
  • the state of the watercourse in the context of the EC Water Framework Directive. The goal of this research was to assess the ecohydromorphological state of selected catchments in Czechia, representing varied relief types, and at the same, representing
  • 2008
  • of various shapes were analysed. The results reveal that the ice layer sequences and permafrost internal structure vary with landform types. A relationship therefore exists between different morphological type within a family of landforms and their microscale
  • 2008
  • varying gradients of environmental factors, such as landform morphology and soil physical and chemical properties. Thus, this paper aims to provide ecological understanding of the relationship between the vegetation patterns and environmental factors
  • 2008
  • is steadily increasing but varies between regions. Western region has experienced one of the highest population growth rates, due to its status as a frontier for cocoa production.
  • 2008
  • statistical model. Measures mean annual ground temperatures vary from near 0°C around 950m a.s.l. to -7°C at 2500m a.s.l. and permafrost is predicted to occur at elevations >700m a.s.l. Heat transfer modelling indicates that the maximum permafrost thickness
  • 2008
  • Submarine landforms preserved in bathymetric troughs on the Antarctic continental shelf show that the style of ice stream retreat across the shelf following the last glacial maximum varied between different troughs. Three styles of retreat
  • 2008
  • in the internal environment of glacial area; the influence exerted by ions elution in snowpacks section; and the varying ions transporting styles, deposition modes, chemical characteristics.
  • 2008
  • stand state, sedimentary environmental evolution, and winter monsoon change. The results showed that the elements and the ratios varied regularly with the grain size. The ratio of Rb/Sr in the fraction
  • 2008