Results 101 to 110 of about 5,150,866 (206)
Glacial erosion: status and outlook
Annals of Glaciology, 2019 Glacier-erosion rates range across orders of magnitude, and much of this variation cannot be attributed to basal sliding rates. Subglacial till acts as lubricating ‘fault gouge’ or ‘sawdust’, and must be removed for rapid subglacial bedrock erosion. Such
R. B. Alley, K. M. Cuffey, L. K. Zoet
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Cauldron subsidence and subglacial floods [PDF]
, 2007 Ice cauldrons are depressions which form at the surface of ice sheets when an underlying subglacial lake empties, in particular when subglacial volcanic eruptions occur.
A.C. Fowler +5 more
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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 +3 more
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Subglacial Processes and Subglacial Hydrology
, 2016 The hydrology of glaciers is known to have a significant influence on glacier dynamics. Rapid variations in dynamics can occur due to changes in the glacial and subglacial hydrology. However, our understanding of the subglacial drainage system is based on few direct and usually short-term observations.
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SedimentologikaDeep and narrow gullies dissecting reliefs of the Southern French Alps are filled with 10's to 100's meters thick accumulation of unsorted, boulder-rich muddy material (i.e., diamicton) left behind by glaciers that repeatedly covered the region during ...
Pierre Dietrich, Alexis Nutz
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Quantifying subglacial roughness and its link to glacial geomorphology and ice speed [PDF]
, 2013 The shape of subglacial bed topography, termed its roughness, is a recognised control on basal ice-flow. Although glaciologists have observed patterns of variations in ice speed over beds with different roughness values, the strength of this relationship
PRESCOTT, PHILIP,WILLIAM
core
Assessing the catastrophic break-up of Briksdalsbreen, Norway, associated with rapid climate change
, 2011 Recent research has raised concerns about the potential influence of rapid climate change on the stability of major ice sheets. The behaviour of glaciers is determined largely by the processes and conditions operating at their base.
Kathryn C. Rose +12 more
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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.
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Simulating seasonal evolution of subglacial hydrology at a surging glacier in the Karakoram
Journal of GlaciologyGlacier 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 +6 more
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Journal of GlaciologyWe analyse seismic time series collected during experimental campaigns in the area of the David Glacier, Victoria Land, Antarctica, between 2003 and 2016.
Stefania Danesi +5 more
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