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Published on Mar 2, 2010
Part 1 of 2 videos in a set of 6 videos providing an introduction to modeling of subglacial water flow. The presentation begins with a brief overview of 3 major types of drainage systems underneath glaciers. I then construct a quantitative model of predicting how pressure disturbances propagate, based upon a model appearing in Mark Fahnestock's 1991 Caltech doctoral thesis. I find the perturbation solution and show how this solution predicts that water pulses propagate at speeds of several hundred meters per hour, in agreement with geophysical observations. Next video is: SubGlacialHydraulics-2of2.m4v