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Benchmark experiments for higher-order and full-Stokes ice sheet models (ISMIP-HOM)
We present the results of the first ice sheet model intercomparison project for higher-order and full-Stokes ice sheet models. These models are compared and verified in a series of six experiments ofExpand
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Capabilities and performance of Elmer/Ice, a new-generation ice sheet model
The Fourth IPCC Assessment Report concluded that ice sheet flow models, in their current state, were unable to provide accurate forecast for the increase of polar ice sheet discharge and the associated contribution to sea level rise. Expand
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Retreat of Pine Island Glacier controlled by marine ice-sheet instability
At present the Pine Island Glacier in West Antarctica is thinning and its grounding line has retreated. This work uses three ice-flow models to investigate the stability of the glacier and finds thatExpand
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Enhancement factors for grounded ice and ice shelves inferred from an anisotropic ice-flow model
Polar ice is known to be one of the most anisotropic natural materials. For a given fabric the polycrystal viscous response is strongly dependent on the actual state of stress and strain rate. WithinExpand
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The stability of grounding lines on retrograde slopes
The stability of marine ice sheets grounded on beds that slope upwards in the overall direction of flow is investigated numerically in two horizontal dimensions. We give examples of stable groundingExpand
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Glacier flow modelling: a comparison of the Shallow Ice Approximation and the full-Stokes solution
Abstract Several different approaches of various complexities have been used in glacier and ice sheet modelling studies. Amongst them, owing to its simplicity, the Shallow Ice Approximation appearsExpand
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Finite‐element modeling of subglacial cavities and related friction law
[1] Sliding velocity and basal drag are strongly influenced by changes in subglacial water pressure or subglacial water storage associated with opening and closing of water cavities in the lee ofExpand
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Marine ice sheet dynamics: Hysteresis and neutral equilibrium
[1] The stability of marine ice sheets and outlet glaciers is mostly controlled by the dynamics of their grounding line, i.e., where the bottom contact of the ice changes from bedrock or till toExpand
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1-D-ice flow modelling at EPICA Dome C and Dome Fuji, East Antarctica
Abstract. One-dimensional (1-D) ice flow models are used to construct the age scales at the Dome C and Dome Fuji drilling sites (East Antarctica). The poorly constrained glaciological parameters atExpand
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Results of the Marine Ice Sheet Model Intercomparison Project, MISMIP
Predictions of marine ice-sheet behaviour require models that are able to robustly simulate grounding line mi- gration. We present results of an intercomparison exercise for marine ice-sheet models.Expand
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