Benchmarking the vertically integrated ice-sheet model IMAU-ICE (version 2.0)
<p>Ice-dynamical processes constitute a large uncertainty in future projections of sea-level rise caused by anthropogenic climate change. Improving our understanding of these processes requires ice-sheet models that perform well at simulating both past and future ice-sheet evolution. Here, we...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Copernicus Publications
2022-07-01
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| Series: | Geoscientific Model Development |
| Online Access: | https://gmd.copernicus.org/articles/15/5667/2022/gmd-15-5667-2022.pdf |
| Summary: | <p>Ice-dynamical processes constitute a large uncertainty in
future projections of sea-level rise caused by anthropogenic climate change.
Improving our understanding of these processes requires ice-sheet models
that perform well at simulating both past and future ice-sheet evolution.
Here, we present version 2.0 of the ice-sheet model IMAU-ICE, which uses the
depth-integrated viscosity approximation (DIVA) to solve the stress balance.
We evaluate its performance in a range of benchmark experiments, including
simple analytical solutions and both schematic and realistic model
intercomparison exercises. IMAU-ICE has adopted recent developments in the
numerical treatment of englacial stress and sub-shelf melt near the
grounding line, which result in good performance in experiments concerning
grounding-line migration (MISMIP, MISMIP<span class="inline-formula">+)</span> and buttressing (ABUMIP). This
makes it a model that is robust, versatile, and user-friendly, which will
provide a firm basis for (palaeo-)glaciological research in the coming
years.</p> |
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| ISSN: | 1991-959X 1991-9603 |