Sensitivity of subglacial drainage to water supply distribution at the Kongsfjord basin, Svalbard [PDF]
The Cryosphere, 2021 By regulating the amount, the timing, and the location of meltwater supply to the glacier bed, supraglacial hydrology potentially exerts a major control on the evolution of the subglacial drainage system, which in turn modulates ice velocity.
C. Scholzen, T. V. Schuler, A. Gilbert
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Journal of Glaciology, 2023 Hydrologic pathways beneath ice sheets and glaciers play an important role in regulating ice flow. Antarctica has experienced, and will continue to experience, changes in ice dynamics and geometry, but the associated changes in subglacial hydrology have ...
Anna-Mireilla Hayden, Christine F. Dow
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Models of ice melting and edifice growth during subglacial basaltic eruptions. [PDF]
, 2007 Models of the early stages of basaltic eruptions beneath temperate glaciers are presented that consider the evolving sizes of volcanic edifices emplaced within subglacial cavities.
Tuffen, Hugh
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Basal conditions of Denman Glacier from glacier hydrology and ice dynamics modeling [PDF]
The Cryosphere, 2023 Basal sliding in Antarctic glaciers is often modeled using a friction law that relates basal shear stresses to the effective pressure. As few ice sheet models are dynamically coupled to subglacial hydrology models, variability in subglacial hydrology ...
K. McArthur +3 more
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Subglacial Freshwater Drainage Increases Simulated Basal Melt of the Totten Ice Shelf
Geophysical Research Letters, 2023 Subglacial freshwater discharge from beneath Antarctic glaciers likely has a strong impact on ice shelf basal melting. However, the difficulty in directly observing subglacial flow highlights the importance of modeling these processes.
David E. Gwyther +4 more
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Subglacial drainage processes at a High Arctic polythermal valley glacier [PDF]
, 2005 Dye-tracer experiments undertaken over two summer melt seasons at polythermal John Evans Glacier, Ellesmere Island, Canada, were designed to investigate the character of the subglacial drainage system and its evolution over a melt season. In both summers,
Nienow, Peter W. +5 more
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Persistent, extensive channelized drainage modeled beneath Thwaites Glacier, West Antarctica [PDF]
The Cryosphere, 2022 Subglacial hydrology is a leading control on basal friction and the dynamics of glaciers and ice sheets. At low discharge, subglacial water flows through high-pressure, sheet-like systems that lead to low effective pressures.
A. O. Hager +5 more
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Recent advances in understanding Antarctic subglacial lakes and hydrology [PDF]
Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences, 2016 It is now well documented that over 400 subglacial lakes exist across the bed of the Antarctic Ice Sheet. They comprise a variety of sizes and volumes (from the approx. 250 km long Lake Vostok to bodies of water less than 1 km in length), relate to a number of discrete topographic settings (from those contained within valleys to lakes that reside in ...
MJ Siegert, Neil Ross, A LeBrocq
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Melting of the glacier base during a small-volume subglacial rhyolite eruption: evidence from Blahnukur, Iceland. [PDF]
, 2002 Although observations of recent volcanic eruptions beneath Vatnajokull, Iceland have improved the understanding of ice deformation and meltwater drainage, little is known about the processes that occur at the glacier base.
Tuffen, H +3 more
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Clean subglacial access: prospects for future deep hot-water drilling [PDF]
, 2015 Accessing and sampling subglacial environments deep beneath the Antarctic Ice Sheet presents several challenges to existing drilling technologies. With over half of the ice sheet believed to be resting on a wet bed, drilling down to this environment must
Smith, Andrew +38 more
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