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The motion of ice stream margins

  • A. C. Fowler (a1) (a2)

Abstract

The recent article by Schoof (J. Fluid Mech., vol. 712, 2012, pp. 552–578) provides a technically demanding solution to the problem of determining ice-stream margin evolution. It is important in opening the way to the future theoretical description of how the ice sheets will melt and sea level will rise as the climate warms. But the sophistication of the mathematics should not operate as a mask to an examination of the credibility of the model.

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Copyright

Corresponding author

Email address for correspondence: fowler@maths.ox.ac.uk

References

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Barcilon, V. & MacAyeal, D. R. 1993 Steady flow of a viscous ice stream across a no- slip/free-slip transition at the bed. J. Glaciol. 39, 167185.
Fowler, A. C. 2011 Mathematical Geoscience. Springer.
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Hindmarsh, R. C. A. 2009 Consistent generation of ice-streams via thermo-viscous instabilities modulated by membrane stresses. Geophys. Res. Lett. 36, L06502.
Hutter, K. & Olunloyo, V. O. S. 1980 On the distribution of stress and velocity in an ice strip, which is partly sliding over and partly adhering to its bed, by using a Newtonian viscous approximation. Proc. R. Soc. Lond. A 373, 385403.
Kleman, J. & Hättestrand, C. 1999 Frozen-bed Fennoscandian and Laurentide ice sheets during the last glacial maximum. Nature 402, 6366.
Moore, P. L., Iverson, N. R. & Cohen, D. 2010 Conditions for thrust faulting in a glacier. J. Geophys. Res. 115, F02005.
Nowicki, S. M. J. & Wingham, D. J. 2008 Conditions for a steady ice sheet–ice shelf junction. Earth Planet. Sci. Lett. 265, 246255.
Rignot, E., Mouginot, J. & Scheuchl, B. 2011 Ice flow of the Antarctic ice sheet. Science 333, 14271430.
Schoof, C. 2012 Thermally-driven migration of ice stream shear margins. J. Fluid Mech. 712 552–578.
Weertman, J. 1957 On the sliding of glaciers. J. Glaciol. 3, 3338.
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The motion of ice stream margins

  • A. C. Fowler (a1) (a2)

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