Constraints on subglacial melt fluxes from observations of active subglacial lake recharge
Journal of Glaciology, 2023 Active subglacial lakes provide a rare glimpse of the subglacial environment and hydrological processes at play. Several studies contributed to establishing active subglacial lake inventories and document lake drainage and connection, but few focused on ...
George Malczyk +4 more
doaj +1 more source
Journal of Glaciology, 2023 Glacial ripping involves glaciotectonic disintegration of rock hills and extensive removal of rock at the ice-sheet bed, triggered by hydraulic jacking caused by fluctuating water pressures.
Maarten Krabbendam +4 more
doaj +1 more source
Reconstructing subglacial lake activity with an altimetry-based inverse method
Journal of Glaciology, 2023 Subglacial lake water-volume changes produce ice-elevation anomalies that provide clues about water flow beneath glaciers and ice sheets. Significant challenges remain in the quantitative interpretation of these elevation-change anomalies because the ...
Aaron G. Stubblefield +4 more
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IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2023 The identification and activity monitoring of Antarctic subglacial lakes contribute to the analysis of the mass balance and sea level change. Remote sensing techniques, especially satellite altimetry, are ideal ways for identifying active subglacial ...
Yi Fan +4 more
doaj +1 more source
Filling and drainage of a subglacial lake beneath the Flade Isblink ice cap, northeast Greenland [PDF]
The Cryosphere, 2022 The generation, transport, storage and drainage of meltwater play important roles in the Greenland Ice Sheet (GrIS) subglacial system. Active subglacial lakes, common features in Antarctica, have recently been detected beneath the GrIS and may impact ice
Q. Liang +8 more
doaj +1 more source
, 2021 . Accelerated melting of the Greenland Ice Sheet has increased freshwater delivery to the Arctic Ocean and amplified the need to understand the impact of Greenland Ice Sheet meltwater on Arctic greenhouse gas budgets.
A. Pain +4 more
semanticscholar +1 more source
Geophysical Monograph Series, Page 117-131., 2021 Exploring the links between Large Igneous Provinces and dramatic environmental impact
An emerging consensus suggests that Large Igneous Provinces (LIPs) and Silicic LIPs (SLIPs) are a significant driver of dramatic global environmental and biological changes, including mass extinctions.
Benjamin Black +4 more
wiley +1 more source
Debris-bed friction during glacier sliding with ice–bed separation
Annals of Glaciology, 2019 Theory and experiments indicate that ice–bed separation during glacier slip over 2-D hard beds causes basal shear stress to reach a maximum at a particular slip velocity and decrease at higher velocities.
Neal R. Iverson +2 more
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Subglacial lake activity beneath the ablation zone of the Greenland Ice Sheet [PDF]
The Cryosphere, 2023 Hydrologically active subglacial lakes can drain large volumes of water and sediment along subglacial pathways, affecting the motion and mass balance of ice masses and impacting downstream sediment dynamics.
Y. Fan +13 more
doaj +1 more source
Quantifying subglacial soft bed sedimentary processes
, 2022 <p>An understanding of subglacial processes are a vital component of ice-sheet models for sea level rise prediction as the use of different sliding laws can result in very different outcomes. In particular, the West Antarctic ice streams, are potentially unstable, and are underlain by soft (unconsolidated) beds, which have rarely been ...
Jane Hart +3 more
openaire +2 more sources