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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 468(2140):913-931 April 8, 2012 ©2012 by The Royal Society

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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Page 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

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 AVolume 468(2140):913-931

April 8, 2012

©2012 by The Royal Society

Page 2: 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

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

Page 3: 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

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

Page 4: 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

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

Page 5: 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

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

Page 6: 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

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

Page 7: 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

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

Page 8: 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

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