On the effects of anisotropic rheology on ice flow, internal structure, and the age-depth relationship at ice divides

• Published in: Journal of Geophysical Research
• Main Authors: Martin, Carlos, Gudmundsson, G. Hilmar, Pritchard, Hamish D., Gagliardini, Olivier
• Format: Article in Journal/Newspaper
• Language: unknown
• Published: American Geophysical Union 2009
• Subjects: Glaciology; Earth Sciences; Fuchs; Fuchs Ice Piedmont; Kealey Ice Rise; Antarc*; Antarctica
• Online Access: http://nora.nerc.ac.uk/id/eprint/11150/; http://www.agu.org/journals/jf/jf0904/2008JF001204/2008JF001204.pdf

We use numerical modeling with a full-system Stokes solver to elucidate the effects of nonlinear rheology and strain-induced anisotropy on ice flow at ice divides. We find that anisotropic rheology profoundly affects the shape of both isochrone layering and surface topography. Anisotropic effects ca...