Results 101 to 110 of about 5,522 (216)

Increased Glacier Melt Across Millennia to Hours Enhances Erosion and Sediment Export Processes

Journal of Geophysical Research: Earth Surface, Volume 131, Issue 2, February 2026.
Abstract Glacial erosion and sediment evacuation are key in shaping polar and mountain landscapes and influencing downstream ecological and social systems. The glacier dynamics and hydrology responsible for these processes are closely linked to hydrological and climatic (hydro‐climatic) conditions.
Ian Delaney, Audrey Margirier, Marjolein Gevers, Matt Jenkin, Tancrède Leger, Ivan Vergara, Julien Seguinot, Guillaume Jouvet, Alan Robert Alexander Aitken, Stuart Lane, Frédéric Herman, Georgina E. King   +11 more
wiley   +1 more source

Roughness of a subglacial conduit under Hansbreen, Svalbard [PDF]

, 2017
K.M., J.G., X.L. and Y.C. were supported by the National Science Foundation (NSF) under Grant No. #1503928. Thefieldwork team (K.M., J.G., M.C.) were supported by the Norwegian Arctic Research Council and Svalbard Science Forum, RiS #6106. K.M.
Benn, Douglas I., Chen, Yunxiang, Covington, Matthew D., Gulley, Jason D., GŁowacki, Piotr S., Liu, Xiaofeng, Mankoff, Kenneth D., Tulaczyk, Slawek M.   +7 more
core   +1 more source

Reduced Future Summer Water Availability in the Tien Shan Due To Glacier Wastage

Water Resources Research, Volume 62, Issue 2, February 2026.
Abstract Glaciers in the Tien Shan mountains of Central Asia are a crucial source of freshwater for agriculture and local communities, sustaining over 100 million people in the region. Here, we project future water availability for this region by dynamically modeling the evolution of all glaciers and merging their runoff with hydrological runoff ...
Lander Van Tricht, Harry Zekollari, Matthias Huss, Marit van Tiel, Inne Vanderkelen, Rodrigo Aguayo, Loris Compagno, Wim Thiery, Philippe Huybrechts, Daniel Farinotti   +9 more
wiley   +1 more source

Dynamic Boundaries of Antarctic Active Subglacial Lakes Reveal Underestimated Water Volume Change and Overestimated Lakebed Active Area

Geophysical Research Letters, Volume 53, Issue 2, 28 January 2026.
Abstract This study revisited 158 documented active subglacial lakes across Antarctica, applying a height‐change anomaly delineation algorithm to CryoSat‐2 and ICESat‐2 satellite altimetry data to assemble a 14.75‐year (2010.5–2025.25) time series of active subglacial lake dynamics.
W. Sauthoff, M. R. Siegfried, R. A. Venturelli, B. E. Smith   +3 more
wiley   +1 more source

Climatic control on the peak discharge of glacier outburst floods

, 2007
Lakes impounded by natural ice dams occur in many glacier regions. Their sudden emptying along subglacial paths can unleash similar to 1 km(3) of floodwater, but predicting the peak discharge of these subglacial outburst floods ('jokulhlaups') is ...
Liu, S., Mavlyudov, B., Ng, F.S.L., Wang, Y.   +3 more
core   +1 more source

Influence of Melt Season Characteristics on Meltwater Partitioning and Delivery Into a Perennial Firn Aquifer

Geophysical Research Letters, Volume 53, Issue 2, 28 January 2026.
Abstract Perennial firn aquifers in the Greenland ice sheet are known to form and persist in regions of sufficiently high melt rates and accumulation rates throughout the year. However, it is not clear how seasonal to sub‐seasonal variations in surface melt forcings affect the dynamics of melt recharge into a firn aquifer and the accompanying ...
Nathan Jones, Riley Culberg, Max Brils, Adrian Moure, Xiaojing Fu   +4 more
wiley   +1 more source

Shear resistance and continuity of subglacial till: hydrology rules [PDF]

Journal of Glaciology, 2010
AbstractThe field observations of G.S. Boulton stimulated widespread interest in deformable beds. Shear resistance of till in its critical state is insensitive to strain rate and increases linearly with effective pressure. During unsteady deformation, pseudo-viscous shear resistance can be caused by dilation of consolidated tills and resultant pore ...
openaire   +2 more sources

A Consistent Framework for Coupling Basal Friction With Subglacial Hydrology on Hard-Bedded Glaciers. [PDF]

Geophys Res Lett, 2022
Gilbert A, Gimbert F, Thøgersen K, Schuler TV, Kääb A.   +4 more
europepmc   +1 more source

Inland thinning of the Amundsen Sea sector, West Antarctica [PDF]

, 2002
[1] Together with the Pine Island glacier (PIG), the Thwaites (TG) and Smith (SG) glaciers are the principal drainage systems of the Amundsen Sea (AS) sector of Western Antarctica.
Mansley, JAD, Shepherd, A, Wingham, DJ
core   +1 more source

Modeling of subglacial hydrological development following rapid supraglacial lake drainage.

Journal of geophysical research. Earth surface, 2015
The rapid drainage of supraglacial lakes injects substantial volumes of water to the bed of the Greenland ice sheet over short timescales. The effect of these water pulses on the development of basal hydrological systems is largely unknown. To address this, we develop a lake drainage model incorporating both (1) a subglacial radial flux element driven ...
Dow, C. F., Kulessa, B., Rutt, I. C., Tsai, V. C., Pimentel, S., Doyle, S. H., van As, D., Lindbäck, K., Pettersson, R., Jones, G. A., Hubbard, A.   +10 more
openaire   +5 more sources