A parallel high-order accurate finite element nonlinear Stokes ice sheet model and benchmark experiments [electronic resource].
- Washington, D.C. : United States. Dept. of Energy, 2012. and Oak Ridge, Tenn. : Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy.
- Physical Description:
- F01,001 (24 Pages) : digital, PDF file
- Additional Creators:
- University of South Carolina, United States. Department of Energy, United States. Department of Energy. Office of Biological and Environmental Research, and United States. Department of Energy. Office of Scientific and Technical Information
- Restrictions on Access:
- Free-to-read Unrestricted online access
- The numerical modeling of glacier and ice sheet evolution is a subject of growing interest, in part because of the potential for models to inform estimates of global sea level change. This paper focuses on the development of a numerical model that determines the velocity and pressure fields within an ice sheet. Our numerical model features a high-fidelity mathematical model involving the nonlinear Stokes system and combinations of no-sliding and sliding basal boundary conditions, high-order accurate finite element discretizations based on variable resolution grids, and highly scalable parallel solution strategies, all of which contribute to a numerical model that can achieve accurate velocity and pressure approximations in a highly efficient manner. We demonstrate the accuracy and efficiency of our model by analytical solution tests, established ice sheet benchmark experiments, and comparisons with other well-established ice sheet models.
- Published through SciTech Connect., 01/01/2012., "doe/fg/er64431-3", Journal of Geophysical Research 117 FT, and Gunzburger, Max; Price, Stephen; Ringler, Todd; Ju, Lili; Leng, Wei.
- Funding Information:
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