inscription
Portail d'information géographique

Résultats de la recherche (6 résultats)

Affinez votre recherche

Par Collection Par Auteur Par Date Par Sujet Par Titre
  • This paper analyses the use and potential of thermal anemometry and high-frequency measurements of sand flux in the harsh environment of particle-laden air flows. It reports the development and testing of both an armoured hot-wire system for field
  • 1999
  • , further development and testing are necessary.
  • 1999
  • This paper describes a comparatively simple quality assurance method which they have developed in an attempt to assess the accuracy of their own luminescence dates produced by single aliquot dating procedures. It is applicable to all samples and has
  • 1999
  • This paper provides a summary of the principles of the luminescence (especially optical) dating methods and shows how recent developments (specifically single aliquot dating procedures) have dramatically enhanced the scope and potential
  • 1999
  • Recent technological developments in the application of the Global Positioning System (GPS) offer the prospect of rapidly mapping difficult terrain and quantifying temporal and spatial dynamics of erosion and sedimentation. In the uplands
  • 1999
  • deployment, data acquisition and forms of output are critically summarised. It is shown for the first time in the Tay Estuary, that vertical current velocities are significant and are particularly so in downwelling zones associated with the development
  • 1999