Shear dilation of subglacial till results in time-dependent sliding laws

KLP Warburton, DR Hewitt… - Proceedings of the …, 2023 - royalsocietypublishing.org
The dynamics of glacial sliding over water-saturated tills are poorly constrained and difficult
to capture realistically in large-scale models. Experiments characterize till as a plastic …

Multi-scale variations of subglacial hydro-mechanical conditions at Kongsvegen glacier, Svalbard

C Bouchayer, U Nanni, PM Lefeuvre, J Hult… - The …, 2024 - tc.copernicus.org
The flow of glaciers is largely controlled by changes at the ice–bed interface, where basal
slip and sediment deformation drive basal glacier motion. Determining subglacial conditions …

The kinematic significance of subglacial bedforms and their use in palaeo-glaciological reconstructions

J Vérité, É Ravier, O Bourgeois, S Pochat… - Earth and Planetary …, 2024 - Elsevier
Subglacial bedforms are relevant geomorphic markers for palaeo-glaciological
reconstructions. Due to the complexity of thermomechanical interactions between ice, till and …

Debris cover limits subglacial erosion and promotes till accumulation

I Delaney, LS Anderson - Geophysical Research Letters, 2022 - Wiley Online Library
Glaciers are commonly conceptualized as bodies composed of snow and ice. Yet, many
glaciers contain a substantial amount of rock, especially those abutting steep mountains …

A power-based abrasion law for use in landscape evolution models

DD Hansen, JP Brooks, LK Zoet, NT Stevens… - …, 2023 - pubs.geoscienceworld.org
Subglacial abrasion drives erosion for many glaciers, inundating forefields and proglacial
marine environments with glaciogenic sediments. Theoretical treatments of this process …

Transport properties of fast ice within the nearshore

SE Dodge, LK Zoet, JE Rawling III, EJ Theuerkauf… - Coastal …, 2022 - Elsevier
Fast ice affects many coastlines in high-and mid-latitude regions, shaping the coastal
morphology by acting as both a protective barrier from winter storms and as an erosive …

Differentiation of diamictons (glacigenic–non-glacigenic) using microstructure abundancies and types

J Menzies - Proceedings of the Geologists' Association, 2022 - Elsevier
As mobile diamicton sediments move across already deposited sediments whether on land
or into oceans generated by either glaciers/ice sheets or landslides, a series of soft …

Subglacial hydrology modeling predicts high winter water pressure and spatially variable transmissivity at Helheim Glacier, Greenland

A Sommers, C Meyer, M Morlighem, H Rajaram… - Journal of …, 2023 - cambridge.org
Water pressure beneath glaciers influences ice velocity. Subglacial hydrology models are
helpful for gaining insight into basal conditions, but models depend on unconstrained …

Subglacial deformation of permafrost beneath Wright Lower Glacier, Antarctica as revealed by direct observations and measurements from a subglacial tunnel

S Fitzsimons, M Sharp, R Lorrain - Geomorphology, 2023 - Elsevier
Subglacial processes influence the large-scale behaviour of glaciers and determine the
geological processes that occur at the ice-substrate interface. In this paper we focus on …

Glacier and ice sheet flow

AC Fowler - Geophysical & Astrophysical Fluid Dynamics, 2024 - Taylor & Francis
This review of the dynamics of the flow of glaciers and ice sheets focusses on the
mathematical models which have been developed to explain a number of observations in …