| Summary: | International audience Over the last two decades, the Greenland Ice Sheet has been losing mass at an increasing rate, with an important contribution coming from acceleration and thinning of numerous outlet glaciers. Representing these changes in flow models is a challenge requiring the development of (i) grid refinement strategies to capture individually the narrow outlet glaciers, (ii) efficient numerical schemes to solve the appropriate flow equations and (iii) inverse methods to constrain poorly known parameters. Here, we will present details and applications of these recent developments from local sensitivity analysis to large-scale model initialisation
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