Model Development
Abstract. The formulation of a 3-D ice sheet-shelf model is described. The model is designed for long-term continental-scale applications, and has been used mostly in paleocli-matic studies. It uses a hybrid combination of the scaled shallow ice and shallow shelf approximations for ice flow. Floatin...
| Main Authors: | , |
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| Other Authors: | |
| Format: | Text |
| Language: | English |
| Published: |
2012
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| Subjects: | |
| Online Access: | http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.1027.4594 http://www.geosci-model-dev.net/5/1273/2012/gmd-5-1273-2012.pdf |
| Summary: | Abstract. The formulation of a 3-D ice sheet-shelf model is described. The model is designed for long-term continental-scale applications, and has been used mostly in paleocli-matic studies. It uses a hybrid combination of the scaled shallow ice and shallow shelf approximations for ice flow. Floating ice shelves and grounding-line migration are in-cluded, with parameterized ice fluxes at grounding lines that allows relatively coarse resolutions to be used. All signifi-cant components and parameterizations of the model are de-scribed in some detail. Basic results for modern Antarctica are compared with observations, and simulations over the last 5 million years are compared with previously published re-sults. The sensitivity of ice volumes during the last deglacia-tion to basal sliding coefficients is discussed. 1 |
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