Modelling the transition from grain-boundary sliding to power-law creep in dry snow densification

• Published in: Journal of Glaciology
• Main Authors: Morris, Elizabeth M., Montgomery, Lynn N., Mulvaney, Robert
• Other Authors: National Science Foundation, H2020 European Research Council, Natural Environment Research Council
• Format: Article in Journal/Newspaper
• Language: English
• Published: Cambridge University Press (CUP) 2021
• Subjects: Earth-Surface Processes; Langway; Journal of Glaciology
• Online Access: http://dx.doi.org/10.1017/jog.2021.95; https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0022143021000952

Abstract This paper presents a physics-based macroscale model for the densification of dry snow which provides for a smooth transition between densification by grain-boundary sliding (stage 1) and densification by power-law creep (stage 2). The model uses established values of the stage 1 and 2 dens...