Articles | Volume 14, issue 7
The Cryosphere, 14, 2429–2448, 2020
The Cryosphere, 14, 2429–2448, 2020
Research article
27 Jul 2020
Research article | 27 Jul 2020

Using a composite flow law to model deformation in the NEEM deep ice core, Greenland – Part 1: The role of grain size and grain size distribution on deformation of the upper 2207 m

Ernst-Jan N. Kuiper et al.

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Cited articles

Alley, R. B.: Flow-law hypothesis for ice-sheet modelling, J. Glaciol., 38, 245–256, 1992. 
Alley, R. B., Clark, P. U., Huybrechts, P., and Joughin, I.: Ice-Sheet and Sea-Level changes, Science, 310, 456–460,, 2005. 
Azuma, N.: A flow law for anisotropic ice and its application to ice sheets, Earth Planet. Sc. Lett., 128, 601–614,, 1994. 
Baker, R. W.: Textural and Crystal-Fabric Anisotropies and the Flow of Ice Masses, Science, New Series, 211, 1043–1044, 1981. 
Barnes, P., Tabor, D., and Walker, J. C. F.: The friction and creep of polycrystalline ice, Proceedings Royal Society London A, 324, 127–155, 1971. 
Short summary
A composite flow law model applied to crystal size distributions from the NEEM deep ice core predicts that fine-grained layers in ice from the last Glacial period localize deformation as internal shear zones in the Greenland ice sheet deforming by grain-size-sensitive creep. This prediction is consistent with microstructures in Glacial age ice.