Extensive inland thinning and speed-up of Northeast Greenland Ice Stream

SA Khan, Y Choi, M Morlighem, E Rignot, V Helm… - Nature, 2022 - nature.com
Over the past two decades, ice loss from the Greenland ice sheet (GrIS) has increased
owing to enhanced surface melting and ice discharge to the ocean,,,–. Whether continuing …

A consistent framework for coupling basal friction with subglacial hydrology on hard‐bedded glaciers

A Gilbert, F Gimbert, K Thøgersen… - Geophysical …, 2022 - Wiley Online Library
Below hard‐bedded glaciers, both basal friction and distributed subglacial drainage are
thought to be controlled by a network of cavities. Previous coupled hydro‐mechanical …

Icequake insights on transient glacier slip mechanics near channelized subglacial drainage

NT Stevens, LK Zoet, DD Hansen, RB Alley… - Earth and Planetary …, 2024 - Elsevier
Glacier slip modulates sea-level rise. Most slip models assume quasi-equilibrium process
dynamics and debris-free basal ice, but observations regularly show debris-rich basal ice …

Threshold response to melt drives large-scale bed weakening in Greenland

N Maier, F Gimbert, F Gillet-Chaulet - Nature, 2022 - nature.com
Ice speeds in Greenland are largely set by basal motion, which is modulated by meltwater
delivery to the ice base,–. Evidence suggests that increasing melt rates enhance the …

Characterizing sediment flux of deforming glacier beds

DD Hansen, LK Zoet - Journal of Geophysical Research: Earth …, 2022 - Wiley Online Library
Deformation of subglacial sediment during basal slip shapes the beds of many fast‐flowing
glaciers and ice streams. The resultant sediment flux impacts glacier dynamics and rates of …

Transient evolution of basal drag during glacier slip

LK Zoet, NR Iverson, L Andrews, C Helanow - Journal of Glaciology, 2022 - cambridge.org
Glacier slip is usually described using steady-state sliding laws that relate drag, slip velocity
and effective pressure, but where subglacial conditions vary rapidly transient effects may …

Wintertime supraglacial lake drainage cascade triggers large‐scale ice flow response in Greenland

N Maier, JK Andersen, J Mouginot… - Geophysical …, 2023 - Wiley Online Library
Surface melt forces summertime ice‐flow accelerations on glaciers and ice sheets. Here, we
show that large meltwater‐forced accelerations also occur during wintertime in Greenland …

Advances in monitoring glaciological processes in Kalallit Nunaat (Greenland) over the past decades

D Fahrner, G Catania, MG Shahin, DD Hansen… - PLOS …, 2024 - journals.plos.org
Greenland's glaciers have been retreating, thinning and accelerating since the mid-1990s,
with the mass loss from the Greenland Ice Sheet (GrIS) now being the largest contributor to …

Numerical approximation of viscous contact problems applied to glacial sliding

GG de Diego, PE Farrell, IJ Hewitt - Journal of Fluid Mechanics, 2022 - cambridge.org
Viscous contact problems describe the time evolution of fluid flows in contact with a surface
from which they can detach and reattach. These problems are of particular importance in …

Mapping glacier basal sliding applying machine learning

J Umlauft, CW Johnson, P Roux… - Journal of …, 2023 - Wiley Online Library
During the RESOLVE project (“High‐resolution imaging in subsurface geophysics:
development of a multi‐instrument platform for interdisciplinary research”), continuous …