A note on the snout
Abstract The shallow ice approximation for glaciers and ice sheets is a degenerate model in which the ice surface slope at the margin may be infinite. This result is due to the neglect of the otherwise small longitudinal stress terms. Here we derive a corrected approximation for the basal shear stre...
| Published in: | Journal of Glaciology |
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| Format: | Article in Journal/Newspaper |
| Language: | English |
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Cambridge University Press (CUP)
2022
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| Online Access: | http://dx.doi.org/10.1017/jog.2022.36 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0022143022000363 |
| Summary: | Abstract The shallow ice approximation for glaciers and ice sheets is a degenerate model in which the ice surface slope at the margin may be infinite. This result is due to the neglect of the otherwise small longitudinal stress terms. Here we derive a corrected approximation for the basal shear stress, and show that the resulting model provides an explanation for the observed finite slope margins. |
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