Results 71 to 80 of about 546 (164)
Radio-echo soundings on Icelandic temperate glaciers: history of techniques and findings
Annals of Glaciology, 2020 Since the mid-1970s radio-echo soundings have been conducted on Iceland's temperate glaciers. Since then, low-frequency radar technology has furthered the study of most of the island's ice caps.
Helgi Björnsson, Finnur Pálsson
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A Consistent Framework for Coupling Basal Friction With Subglacial Hydrology on Hard-Bedded Glaciers. [PDF]
Geophys Res Lett, 2022 Gilbert A +4 more
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Journal of Glaciology, 2017 Understanding the drivers of recent change at Greenlandic tidewater glaciers is of great importance if we are to predict how these glaciers will respond to climatic warming.
DONALD SLATER +6 more
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High basal melting forming a channel at the grounding line of Ross Ice Shelf, Antarctica
Geophysical Research Letters, 2016 Antarctica's ice shelves are thinning at an increasing rate, affecting their buttressing ability. Channels in the ice shelf base unevenly distribute melting, and their evolution provides insight into changing subglacial and oceanic conditions.
Oliver J. Marsh +6 more
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Annals of Glaciology, 2016 A suite of surface and basal measurements during and after borehole drilling is used to perform in situ investigation of the local basal drainage system and pressure forcing in western Greenland. Drill and borehole water temperature were monitored during
Toby W. Meierbachtol +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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The subglacial landscape and hydrology of Antarctica mapped from space
, 2021 <p><b>To narrow uncertainties in the Antarctic ice sheet's contribution to sea level rise, we present a collection of novel machine learning and automated satellite remote sensing methods which use ice surface observations to infer the subglacial nature of Antarctica. A super-resolution deep neural network called DeepBedMap was designed and
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Subglacial soft bed hydrology and climate change
Abstract Water at the glacier base controls the ‘slipperiness’ of the bed and the rate of glacier contribution to sea level rise, yet very little is known about this process associated with soft bedded glaciers. There is a continuum between distributed and channelized systems, associated with soft bedded glaciers, which have a distinct ...
Jane Hart +4 more
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Journal of GlaciologyGlacier surges are opportunities to study large amplitude changes in ice velocities and accompanying links to subglacial hydrology. Although the surge phase is generally explained as a disruption in the glacier's ability to drain water from the bed, the ...
Yoram Terleth +5 more
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Groundwater feedbacks on ice sheets and subglacial hydrology
The dynamics of many of Antarctica's glaciers are modulated by a hydrological system at the base of the ice. Sedimentary basins beneath the ice bed contribute to the water budget in this hydrological system by discharging or taking up water. However, sedimentary basins are not included in most current models of ice dynamics, and little is known about ...
Cairns, Gabriel J. +2 more
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