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Upper and lower limits on the stability of calving glaciers from the yield strength envelope of ice by J. N. Bassis, and C. C. Walker Proceedings A Volume.

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Presentation on theme: "Upper and lower limits on the stability of calving glaciers from the yield strength envelope of ice by J. N. Bassis, and C. C. Walker Proceedings A Volume."— Presentation transcript:

1 Upper and lower limits on the stability of calving glaciers from the yield strength envelope of ice by J. N. Bassis, and C. C. Walker Proceedings A Volume 468(2140):913-931 April 8, 2012 ©2012 by The Royal Society

2 The force balance near a glacier cliff. J. N. Bassis, and C. C. Walker Proc. R. Soc. A 2012;468:913- 931 ©2012 by The Royal Society

3 Fraction of the ice penetrated by crevasses as a function of the ratio of water depth to ice thickness at the calving front. J. N. Bassis, and C. C. Walker Proc. R. Soc. A 2012;468:913- 931 ©2012 by The Royal Society

4 Contours showing maximum stable ice thickness as a function of water depth for different crevasse penetration depths for a constant yield strength of 1 MPa. J. N. Bassis, and C. C. Walker Proc. R. Soc. A 2012;468:913- 931 ©2012 by The Royal Society

5 Comparison of observations with predicted critical water depth as a function of ice thickness for three strength models. J. N. Bassis, and C. C. Walker Proc. R. Soc. A 2012;468:913- 931 ©2012 by The Royal Society

6 Comparison of observed height-above-buoyancy and water depth against predicted bounds. J. N. Bassis, and C. C. Walker Proc. R. Soc. A 2012;468:913- 931 ©2012 by The Royal Society

7 Failure of the ice cliff near the bed for a granular material as a function of different coefficients of friction. J. N. Bassis, and C. C. Walker Proc. R. Soc. A 2012;468:913- 931 ©2012 by The Royal Society

8 Shear stress minus cohesive stress calculated for S3, including the effect of ocean swell- induced flexural stresses. J. N. Bassis, and C. C. Walker Proc. R. Soc. A 2012;468:913- 931 ©2012 by The Royal Society


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