Results 121 to 130 of about 2,943 (230)

Temporal Variations in Seismic Ambient Noise Identify Seasonal Changes in Basal Conditions at Sermeq Kujalleq in Kangia, Greenland

Geophysical Research Letters, Volume 53, Issue 10, 28 May 2026.
Abstract Subglacial processes are key to glacier dynamics but remain poorly constrained due to limited in situ observations. We use continuous seismic and Global Navigation Satellite System (GNSS) measurements to investigate summer basal conditions at Sermeq Kujalleq in Kangia (SKK; Jakobshavn Isbræ), Kalaallit Nunaat (Greenland).
Janneke van Ginkel, Adrien Wehrlé, Ana Nap, Fabian Walter, Andrea Kneib‐Walter, Hugo Rousseau, Martin P. Lüthi   +6 more
wiley   +1 more source

Stress Redistribution Explains Anti-correlated Subglacial Pressure Variations

, 2018
We used a finite element model to interpret anti-correlated pressure variations at the base of a glacier to demonstrate the importance of stress redistribution in the basal ice.
Olivier Gagliardini, Gaute Lappegard, Lappegard, Gaute, Miriam Jackson, Lefeuvre, Pierre-Marie, Pierre-Marie Lefeuvre, Jon Ove Hagen, Hagen, Jon Ove, Gagliardini, Olivier, Thomas Zwinger, Jackson, Miriam, Zwinger, Thomas   +11 more
core   +1 more source

Dendritic subglacial drainage systems in cold glaciers formed by cut-and-closure processes

, 2014
The routing and storage of meltwater and the configuration of drainage systems in glaciers exert a profound influence on glacier behaviour. However, little is known about the hydrological systems of cold glaciers, which form a significant proportion of the total glacier population in the climate sensitive region of the High Arctic.
Naegeli, Kathrin, Lovell, Harold, Zemp, Michael, Benn, Douglas I   +3 more
openaire   +6 more sources

Former dynamic behaviour of a cold-based valley glacier on Svalbard revealed by basal ice and structural glaciology investigations

, 2015
H.L. was funded by a UK Natural Environment Research Council (NERC) PhD studentship (NE/I528050/1), the Queen Mary Postgraduate Research Fund, and an Arctic Field Grant from the Research Council of Norway. E.J.F.
Hubbard, Bryn, Benn, D.I., Hubbard, B., Lovell, Harold, Lovell, H., Fleming, E.J., Lukas, S., Fleming, Edward J., Lukas, Sven, Naegeli, K., Benn, Douglas I., Naegeli, Kathrin   +11 more
core   +1 more source

Ice mass discharge through the Antarctic subglacial hydrographic network as a trigger for cryoseismicity

Journal of Glaciology
We analyse seismic time series collected during experimental campaigns in the area of the David Glacier, Victoria Land, Antarctica, between 2003 and 2016.
Stefania Danesi, Simone Salimbeni, Alessandra Borghi, Stefano Urbini, Achille Zirizzotti, Massimo Frezzotti   +5 more
doaj   +1 more source

Simulating seasonal evolution of subglacial hydrology at a surging glacier in the Karakoram

Journal of Glaciology
Glacier motion, retreat and glacier hazards such as surges and glacial lake outburst floods (GLOFs) are likely underpinned by subglacial hydrology. Recent advances in subglacial hydrological modeling allow us to shed light on subglacial processes that ...
Neosha G. Narayanan, Aleah N. Sommers, Winnie Chu, Jakob F. Steiner, Muhammad Adnan Siddique, Colin R. Meyer, Brent Minchew   +6 more
doaj   +1 more source

Reconstructing the glacial history of Upgang, North Yorkshire: a North Sea ice lobe readvance during the termination of the last glacial maximum? [PDF]

, 2007
Around Great Britain at the end of the Last Glacial Maximum (LGM) there is evidence for a number of glacial readvances, specifically in the Irish Sea Basin and Eastern Scotland.
Lodwick, Jennifer
core  

Impacts of subglacial processes on underlying bedrock

, 2019
Historically, the field of glacial geology has put much focus on the processes within the subglacial environment, their effects on unconsolidated sediments and the landforms they produce.
Juliusson, Oscar
core  

Transient glacier dynamics and subglacial hydro-mechanical processes

, 2023
The Cryosphere, encompassing elements like sea ice, permafrost, snow, glaciers, and ice sheets, faces a grave threat from ongoing climate change and can significantly impact ecosystems, human lives, and livelihoods. Understanding their dynamics is essential to predict their future and inform mitigation strategies.
openaire   +2 more sources

Subglacial processes at the fringe of the last Scandinavian Ice Sheet in central Poland derived from macro‐ and micro‐sedimentological proxies

Boreas
Geological information contained in tills is important for deciphering processes that operated under past ice sheets and helps to constrain the fundamentals of glacial erosion, transport and deposition.
Piotr Hermanowski, Jan A. Piotrowski
doaj   +1 more source