Resolution requirements for grounding-line modelling: sensitivity to basal drag and ice-shelf buttressing

• Published in: Annals of Glaciology
• Main Authors: Gladstone, Rupert M, Payne, A J, Cornford, Stephen L
• Format: Article in Journal/Newspaper
• Language: English
• Published: 2012
• Subjects: Pine Island Glacier; Annals of Glaciology; Antarc*; Antarctica; Ice Sheet; Ice Shelf; Pine Island
• Online Access: https://hdl.handle.net/1983/07bacecb-e961-4e5d-bc02-99cfd758528d; https://research-information.bris.ac.uk/en/publications/07bacecb-e961-4e5d-bc02-99cfd758528d; https://doi.org/10.3189/2012AoG60A148

Simulations of grounding-line migration in ice-sheet models using a fixed grid have been shown to exhibit poor convergence at achievable resolutions. We present a series of ‘shelfy-stream’ flowline model experiments using an idealized set-up. We assess the performance of a range of grounding-line pa...