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The Cryosphere An interactive open-access journal of the European Geosciences Union
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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.
TC | Articles | Volume 12, issue 2
The Cryosphere, 12, 609–625, 2018
https://doi.org/10.5194/tc-12-609-2018
The Cryosphere, 12, 609–625, 2018
https://doi.org/10.5194/tc-12-609-2018

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 et al.

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Cited articles

Aliani, S., Sciascia, R., Conese, I., D'Angelo, A., Del Bianco, F., Giglio, F., Langone, L., and Miserocchi, S.: Characterization of seawater properties and ocean heat content in Kongsfjorden, Svalbard Archipelago, Rendiconti Lincei, 27, 155–162, https://doi.org/10.1007/s12210-016-0544-4, 2016. a
Amundson, J. M. and Truffer, M.: A unifying framework for iceberg-calving models, J. Glaciol., 56, 822–830, https://doi.org/10.3189/002214310794457173, 2010. a
Åström, J. A., Riikilä, T. I., Tallinen, T., Zwinger, T., Benn, D., Moore, J. C., and Timonen, J.: A particle based simulation model for glacier dynamics, The Cryosphere, 7, 1591–1602, https://doi.org/10.5194/tc-7-1591-2013, 2013. a, b
Åström, J. A., Vallot, D., Schäfer, M., Welty, E. Z., O'Neel, S., Bartholomaus, T., Liu, Y., Riikilä, T., Zwinger, T., Timonen, J., and Moore, J. C.: Termini of calving glaciers as self-organized critical systems, Nat. Geosci., 7, 874–878, https://doi.org/10.1038/NGEO2290, 2014. a, b
Bassis, J. and Jacobs, S.: Diverse calving patterns linked to glacier geometry, Nat. Geosci., 6, 833–836, https://doi.org/10.1038/ngeo1887, 2013. a
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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.
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