WATER FLOW THROUGH VIENS IN ICE

Water flow through the vein structure of temperature ice is described as Darcian flow in which the pressure gradient is determined from vein size and overburden pressure. A solution method for the resulting equation is given and two special cases are considered. For steady flow the equilibrium vein size is a function of depth and, by neglecting the effects of diffusion, it is shown that flow perturbations introduced at the surface propagate downward at a constant speed. These perturbations propagate so slowly that even annual surface fluctuations of flow may be eliminated by diffusion before reaching the bottom of the glacier. /Author/

Media Info

  • Features: References;
  • Pagination: 7 p.

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Filing Info

  • Accession Number: 00139255
  • Record Type: Publication
  • Report/Paper Numbers: CRREL 76-6
  • Files: TRIS
  • Created Date: Sep 4 1976 12:00AM