Abstract:Numerical models for predicting future ice-mass loss of the Antarctic and Greenland ice sheet requires accurately representing their dynamics. Unfortunately, ice-sheet models suffer from a very strict timestep size constraint, which for higher-order models constitutes a severe bottleneck since in each time step a nonlinear and computationally demanding system of equations has to be solved.In this study, stable time-step sizes are increased for a full-Stokes model by implementing a so-called free-surface stabil… Show more
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