Strain localization and dynamic recrystallization in the ice–air aggregate: a numerical study

Steinbach, Florian; Bons, Paul D.; Griera, Albert; Jansen, Daniela; Llorens, Maria-Gema; Roessiger, Jens; Weikusat, Ilka

doi:https://doi.org/10.5194/tc-10-3071-2016

Articles | Volume 10, issue 6

https://doi.org/10.5194/tc-10-3071-2016

© Author(s) 2016. This work is distributed under
the Creative Commons Attribution 3.0 License.

Special issue:

International Partnerships in Ice Core Sciences (IPICS) Second...

https://doi.org/10.5194/tc-10-3071-2016

© Author(s) 2016. This work is distributed under
the Creative Commons Attribution 3.0 License.

Articles | Volume 10, issue 6

Research article

|

21 Dec 2016

Research article |

| 21 Dec 2016

Strain localization and dynamic recrystallization in the ice–air aggregate: a numerical study

Florian Steinbach, Paul D. Bons, Albert Griera, Daniela Jansen, Maria-Gema Llorens, Jens Roessiger, and Ilka Weikusat

Supplement

https://doi.org/10.5194/tc-10-3071-2016-supplement

Video supplement

Simulation F00 - Grain Boundaries F. Steinbach, P. D. Bons, A. Griera, D. Jansen, M.-G. Llorens, J. Roessiger, and I. Weikusat https://doi.org/10.5446/19279

Simulation F00 - Passive marker grid F. Steinbach, P. D. Bons, A. Griera, D. Jansen, M.-G. Llorens, J. Roessiger, and I. Weikusat https://doi.org/10.5446/19281

Simulation F00 - Orientations of c-axes F. Steinbach, P. D. Bons, A. Griera, D. Jansen, M.-G. Llorens, J. Roessiger, and I. Weikusat https://doi.org/10.5446/19280

Simulation F00 - Strain rates F. Steinbach, P. D. Bons, A. Griera, D. Jansen, M.-G. Llorens, J. Roessiger, and I. Weikusat https://doi.org/10.5446/19282

Simulation F05 - Grain Boundaries F. Steinbach, P. D. Bons, A. Griera, D. Jansen, M.-G. Llorens, J. Roessiger, and I. Weikusat https://doi.org/10.5446/19283

Simulation F05 - Passive marker grid F. Steinbach, P. D. Bons, A. Griera, D. Jansen, M.-G. Llorens, J. Roessiger, and I. Weikusat https://doi.org/10.5446/19285

Simulation F05 - Orientations of c-axes F. Steinbach, P. D. Bons, A. Griera, D. Jansen, M.-G. Llorens, J. Roessiger, and I. Weikusat https://doi.org/10.5446/19284

Simulation F05 - Strain rates F. Steinbach, P. D. Bons, A. Griera, D. Jansen, M.-G. Llorens, J. Roessiger, and I. Weikusat https://doi.org/10.5446/19286

Simulation F20 - Grain Boundaries F. Steinbach, P. D. Bons, A. Griera, D. Jansen, M.-G. Llorens, J. Roessiger, and I. Weikusat https://doi.org/10.5446/19287

Simulation F20 - Passive marker grid F. Steinbach, P. D. Bons, A. Griera, D. Jansen, M.-G. Llorens, J. Roessiger, and I. Weikusat https://doi.org/10.5446/19289

Simulation F20 - Orientations of c-axes F. Steinbach, P. D. Bons, A. Griera, D. Jansen, M.-G. Llorens, J. Roessiger, and I. Weikusat https://doi.org/10.5446/19288

Simulation F20 - Strain rates F. Steinbach, P. D. Bons, A. Griera, D. Jansen, M.-G. Llorens, J. Roessiger, and I. Weikusat https://doi.org/10.5446/19290

Short summary

How glaciers or ice sheets flow is a result of microscopic processes controlled by the properties of individual ice crystals. We performed computer simulations on these processes and the effect of air bubbles between crystals. The simulations show that small-scale ice deformation is locally stronger than in other regions, which is enhanced by bubbles. This causes the ice crystals to recrystallise and change their properties in a way that potentially also affects the large-scale flow properties.