inscription
Portail d'information géographique

Résultats de la recherche (6 résultats)

Affinez votre recherche

Par Collection Par Auteur Par Date Par Sujet Par Titre
  • Accuracy of an estuarine hydrodynamic model using smooth elements
  • as the erosion of an initially smooth surface proceeds. A second approach uses a computational cellular method. The application of the cellular method to problems of geomorphological interest are discussed.
  • A thin, dark brown rock varnish is described from ice-smoothed bedrock on the forefield of a glacier in North Norway. Glacier retreat rates indicate that the varnish has remained exposed subaerially at the surface for about twenty years, and its
  • processual activity, scarp backwearing as a result of slope dissection and base level lowering is more effective during dry phases than in the most humid phases which are characterized by smooth debris-throughput slopes. Present-day activity is also
  • Laboratory experiments with a recirculating flume have demonstrated that rills can only be dug into an originally smooth surface when the Froude number of the laminar flow exceeds 1.4. From that critical limit on the net drag onto the sandy grains
  • A Pinus sylvestris (Scots pine) tree-growth series from near the tree-line in upper Gudbrandsdalen, southern Norway (Slastad 1957) is analysed, and possible relationships to glacier and climatic fluctuations are explored. The series is smoothed