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Benchmark experiments for higher-order and full-Stokes ice sheet models (ISMIP–HOM)

Abstract : 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 of which one has an analytical solution obtained from a perturbation analysis. The experiments are applied to both 2-D and 3-D geometries; five experiments are steady-state diagnostic, and one has a time-dependent prognostic solution. All participating models give results that are in close agreement. A clear distinction can be made between higher-order models and those that solve the full system of equations. The full-Stokes models show a much smaller spread, hence are in better agreement with one another and with the analytical solution.
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https://hal-insu.archives-ouvertes.fr/insu-00379774
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F. Pattyn, L. Perichon, A. Aschwanden, B. Breuer, B. de Smedt, et al.. Benchmark experiments for higher-order and full-Stokes ice sheet models (ISMIP–HOM). The Cryosphere, Copernicus 2008, 259, pp.95 à 108. ⟨insu-00379774⟩

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