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
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
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
doaj +1 more source
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
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
doaj +1 more source
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
Subglacial Processes at Bondhusbreen, Norway: Preliminary Results [PDF]
Annals of Glaciology, 1983 Subglacial hydrology, sediment transport, pressure, and temperature have been studied beneath approximately 160 m of ice at Sondhusbreen, an outlet glacier from Folgefonni in south-western Norway.The volume of the mean annual water discharge passing through the study area is about 60x106 m3.
Jon Ove Hagen +4 more
openaire +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
The "tipping" temperature within Subglacial Lake Ellsworth, West Antarctica and its implications for lake access. [PDF]
, 2011 We present results from new geophysical data allowing modelling of the water flow within Subglacial Lake Ellsworth (SLE), West Antarctica. Our simulations indicate that this lake has a novel temperature distribution due to significantly thinner ice than ...
Woodward, J. +19 more
core +2 more sources
Bed-type variability and till (dis)continuity beneath Thwaites Glacier, West Antarctica
Annals of Glaciology, 2019 Recent seismic measurements from upper Thwaites Glacier indicate that the bed-type variability is closely related to the along-flow basal topography. In high-relief subglacial highlands, stoss sides of topographic highs have a relatively higher acoustic ...
Atsuhiro Muto +3 more
doaj +1 more source