Effects of undercutting and sliding on calving:  a global approach applied to Kronebreen, Svalbard

Vallot, Dorothée; Åström, Jan; Zwinger, Thomas; Pettersson, Rickard; Everett, Alistair; Benn, Douglas I.; Luckman, Adrian; van Pelt, Ward J. J.; Nick, Faezeh; Kohler, Jack

doi:https://doi.org/10.5194/tc-12-609-2018

Articles | Volume 12, issue 2

https://doi.org/10.5194/tc-12-609-2018

© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/tc-12-609-2018

© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 12, issue 2

Research article

|

21 Feb 2018

Research article |

| 21 Feb 2018

Effects of undercutting and sliding on calving: a global approach applied to Kronebreen, Svalbard

Dorothée Vallot, Jan Åström, Thomas Zwinger, Rickard Pettersson, Alistair Everett, Douglas I. Benn, Adrian Luckman, Ward J. J. van Pelt, Faezeh Nick, and Jack Kohler

Data sets

Capabilities and performance of Elmer/Ice, a new-generation ice sheet model O. Gagliardini, T. Zwinger, F. Gillet-Chaulet, G. Durand, L. Favier, B. de Fleurian, R. Greve, M. Malinen, C. Mart\'in, P. R{\aa}back, J. Ruokolainen, M. Sacchettini, M. Sch\"afer, H. Seddik, and J. Thies, https://doi.org/10.5194/gmd-6-1299-2013

Short summary

This paper presents a new perspective on the role of ice dynamics and ocean interaction in glacier calving processes applied to Kronebreen, a tidewater glacier in Svalbard. A global modelling approach includes ice flow modelling, undercutting estimation by a combination of glacier energy balance and plume modelling as well as calving by a discrete particle model. We show that modelling undercutting is necessary and calving is influenced by basal friction velocity and geometry.