Now showing items 1-5 of 5

    • Effect of topography on retreat rate of different gully headcuts in Bardenas Reales area (Navarre, Spain) 

      Campo-Bescós, Miguel Upna; Álvarez-Mozos, Jesús Upna; Casalí Sarasíbar, Javier Upna; Giménez Díaz, Rafael Upna (Universidad Pública de Navarra / Nafarroako Unibertsitate Publikoa, 2007)   Contribución a congreso / Biltzarrerako ekarpena  OpenAccess
      In Northeast Spain, gullying is a widespread phenomenon. This type of erosion is especially intense in Bardenas Reales (Navarre) where at least two major typical kinds of gully headcut are present. A first group developed ...
    • Hydrological effects of the sediments deposited off a hillslope affected by rill erosion: project outlines and preliminary results 

      Giménez Díaz, Rafael Upna; Casalí Sarasíbar, Javier Upna; Campo-Bescós, Miguel Upna (Universidad Pública de Navarra / Nafarroako Unibertsitate Publikoa, 2007)   Contribución a congreso / Biltzarrerako ekarpena  OpenAccess
      The main objectives of this project are (i) to evaluate the sedimentation rate generated by rill erosion in a hillslope and the granulometric characteristics of the sediment deposited off this hillslope, and (ii) to ...
    • Implications of recent experimental findings for rill erosion modeling 

      Govers, G.; Giménez Díaz, Rafael Upna; Oost, K. van (Universidad Pública de Navarra / Nafarroako Unibertsitate Publikoa, 2007)   Contribución a congreso / Biltzarrerako ekarpena  OpenAccess
      The major aim of this paper is to critically review the theoretical concepts that are underpinning current models of rill flow and sediment detachment in the light of recent experimental results and, when necessary, to ...
    • Photogrammetrical and field measurement of gullies with contrasting morphology 

      Marzolff, I.; Giménez Díaz, Rafael Upna; Seeger, M.; Campo-Bescós, Miguel Upna; Ries, J. B.; Casalí Sarasíbar, Javier Upna; Álvarez-Mozos, Jesús Upna (Universidad Pública de Navarra / Nafarroako Unibertsitate Publikoa, 2007)   Contribución a congreso / Biltzarrerako ekarpena  OpenAccess
      Despite a wealth of studies on monitoring different types of gullies by using remote-sensing technique such as photogrammetry, relatively few efforts have been made to test their accuracy. Therefore the question arises ...
    • Progress in gully erosion research: IV International Symposium on Gully Erosion 

      Casalí Sarasíbar, Javier Upna; Giménez Díaz, Rafael Upna (Universidad Pública de Navarra / Nafarroako Unibertsitate Publikoa, 2007)   Libro / Liburua  OpenAccess
      The classic forms of water erosion of the soil comprise sheet, rill, and gully erosion. According to the concept most generalized, in sheet erosion, thin layers of material are uniformly removed from the soil surface due ...