Projects per year
Abstract
Predictions of marine ice-sheet behaviour require models able to simulate grounding-line migration. We present results of an intercomparison experiment for plan-view marine ice-sheet models. Verification is effected by comparison with approximate analytical solutions for flux across the grounding line using simplified geometrical configurations (no lateral variations, no buttressing effects from lateral drag). Perturbation experiments specifying spatial variation in basal sliding parameters permitted the evolution of curved grounding lines, generating buttressing effects. The experiments showed regions of compression and extensional flow across the grounding line, thereby invalidating the boundary layer theory. Steady-state grounding-line positions were found to be dependent on the level of physical model approximation. Resolving grounding lines requires inclusion of membrane stresses, a sufficiently small grid size (
| Original language | English |
|---|---|
| Pages (from-to) | 410-422 |
| Number of pages | 13 |
| Journal | Journal of Glaciology |
| Volume | 59 |
| Issue number | 215 |
| DOIs | |
| Publication status | Published - 2013 |
UN SDGs
This output contributes to the following UN Sustainable Development Goals (SDGs)
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SDG 14 Life Below Water
Research Groups and Themes
- Bristol Glaciology Centre
Keywords
- HIGHER-ORDER
- PART 1
- FLOW
- DYNAMICS
- SHELF
- SENSITIVITY
- ANTARCTICA
- STABILITY
Fingerprint
Dive into the research topics of 'Grounding-line migration in plan-view marine ice-sheet models: results of the ice2sea MISMIP3d intercomparison'. Together they form a unique fingerprint.Projects
- 1 Finished
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UNDERSTANDING CONTEMPORARY CHANGE IN THE WEST ANTARCTIC ICE SHEET
Payne, A. J. (Principal Investigator)
1/04/07 → 1/01/12
Project: Research
Equipment
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HPC (High Performance Computing) and HTC (High Throughput Computing) Facilities
Alam, S. R. (Manager), Williams, D. A. G. (Manager), Eccleston, P. E. (Manager) & Greene, D. (Manager)
Facility/equipment: Facility
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