Abstract
The influence of polar ice anisotropy on the two-dimensional plane strain and steady-state flow of an isothermal ice-sheet is analysed by using the Shallow Ice Approximation (SIA). The SIA solution is obtained up to the second order in the aspect-ratio ε of the ice-sheet for the flow of orthotropic ice when one of the planes of orthotropy is the plane of the ice-sheet flow. The solution is discussed for the special case of transverse isotropy when the rotational symmetry axis is in the plane of the flow, but not necessarily vertical. It is shown that in general nonnegligible additional terms appear in the solution at order O(ε 0) by comparison to the solution for isotropic ice.
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© 1999 Springer-Verlag
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Philip, A., Meyssonnier, J. (1999). Anisotropic isothermal ice-cap flow with the shallow ice approximation. In: Hutter, K., Wang, Y., Beer, H. (eds) Advances in Cold-Region Thermal Engineering and Sciences. Lecture Notes in Physics, vol 533. Springer, Berlin, Heidelberg. https://doi.org/10.1007/BFb0104186
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DOI: https://doi.org/10.1007/BFb0104186
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Publisher Name: Springer, Berlin, Heidelberg
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