Articles | Volume 16, issue 2
The Cryosphere, 16, 581–601, 2022
https://doi.org/10.5194/tc-16-581-2022
The Cryosphere, 16, 581–601, 2022
https://doi.org/10.5194/tc-16-581-2022

Research article 17 Feb 2022

Research article | 17 Feb 2022

Geometric controls of tidewater glacier dynamics

Thomas Frank et al.

Model code and software

Geometric Controls Thomas Frank https://github.com/hahohe1892/GeometricControls

Video supplement

Glacier retreat through a depression Thomas Frank, Henning Åkesson, Basile de Fleurian, Mathieu Morlighem, and Kerim H. Nisancioglu https://doi.org/10.5446/51568

Glacier retreat through an embayment Thomas Frank, Henning Åkesson, Basile de Fleurian, Mathieu Morlighem, and Kerim H. Nisancioglu https://doi.org/10.5446/51567

Glacier retreat over a bump Thomas Frank, Henning Åkesson, Basile de Fleurian, Mathieu Morlighem, and Kerim H. Nisancioglu https://doi.org/10.5446/51566

Glacier retreat through a bottleneck Thomas Frank, Henning Åkesson, Basile de Fleurian, Mathieu Morlighem, and Kerim H. Nisancioglu https://doi.org/10.5446/51565

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Short summary
The shape of a fjord can promote or inhibit glacier retreat in response to climate change. We conduct experiments with a synthetic setup under idealized conditions in a numerical model to study and quantify the processes involved. We find that friction between ice and fjord is the most important factor and that it is possible to directly link ice discharge and grounding line retreat to fjord topography in a quantitative way.