A level-set method for modeling the evolution of glacier geometry
| Autor: | Antoine Pralong, Martin Funk |
|---|---|
| Rok vydání: | 2004 |
| Předmět: |
Surface (mathematics)
Hydrology 010506 paleontology geography geography.geographical_feature_category Level set method 010504 meteorology & atmospheric sciences Glacier 01 natural sciences Simple (abstract algebra) Applied mathematics Geology 0105 earth and related environmental sciences Earth-Surface Processes |
| Zdroj: | Journal of Glaciology. 50:485-491 |
| ISSN: | 1727-5652 0022-1430 |
| Popis: | A level-set method is proposed for modeling the evolution of a glacier surface subject to a prescribed mass balance. This leads to a simple and versatile approach for computing the evolution of glaciers: the description of vertical fronts and overriding phenomena presents no difficulties, topological changes are handled naturally and steady-state solutions can be calculated without integration over time. A numerical algorithm is put forth as a means of solving the proposed model of glacier surface evolution. It is evaluated by comparing different numerical solutions of the model with analytical and published numerical solutions. The level-set method appears to be a reliable approach for dealing with different glaciological problems. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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