Blog
About

7
views
0
recommends
+1 Recommend
0 collections
    0
    shares
      • Record: found
      • Abstract: not found
      • Article: not found

      General theory of water flow at the base of a glacier or ice sheet

      Reviews of Geophysics

      American Geophysical Union (AGU)

      Read this article at

      ScienceOpenPublisher
      Bookmark
          There is no author summary for this article yet. Authors can add summaries to their articles on ScienceOpen to make them more accessible to a non-specialist audience.

          Abstract

          Related collections

          Most cited references 17

          • Record: found
          • Abstract: found
          • Article: not found

          On the Sliding of Glaciers

           J. Weertman (1957)
          A model is proposed to explain the sliding of any glacier whose bottom surface is at the pressure melting point. Two mechanisms are considered. One is pressure melting and the other is creep rate enhancement through stress concentrations. Neither of the mechanisms operating alone is sufficient to explain sliding. If both mechanisms operate together appreciable sliding can occur.
            Bookmark
            • Record: found
            • Abstract: not found
            • Article: not found

            Sliding motion of glaciers: Theory and observation

             Barclay Kamb (1970)
              Bookmark
              • Record: found
              • Abstract: found
              • Article: not found

              The Theory of Glacier Sliding

               J. Weertman (1964)
              The theory of the sliding of glaciers presented by the author in earlier papers has been generalized (1) by taking into account the resistance to sliding offered by obstacles both smaller and larger than the controlling obstacles and (2) by relaxing the assumption that ice is always in intimate contact with the bed at the down-stream side of an obstacle. The sliding velocities and controlling obstacle sizes which are found from the generalized theory are approximately the same as those found from the earlier theory. A new result obtained from the present theory is that a water layer an order of magnitude smaller in thickness than the height of the controlling obstacles can cause an appreciable increase in the sliding velocity. The generalized theory contains Lliboutry’s sliding theory as an extreme limiting case. For certain thicknesses of a glacier the sliding velocity is a double-valued function of the shear stress exerted at the bed.
                Bookmark

                Author and article information

                Journal
                REGEEP
                Reviews of Geophysics
                Rev. Geophys.
                American Geophysical Union (AGU)
                8755-1209
                1972
                1972
                : 10
                : 1
                : 287
                Article
                10.1029/RG010i001p00287
                © 1972
                Product

                Comments

                Comment on this article