Results 11 to 20 of about 2,075 (207)

Assessing the subglacial lake coverage of Antarctica [PDF]

open access: yesAnnals of Glaciology, 2016
Lakes beneath the Antarctic Ice Sheet are known to decrease traction at the ice base and therefore can have a great impact on ice dynamics. However, the total extent of Antarctic subglacial lakes is still unknown.
Sebastian Goeller   +3 more
doaj   +5 more sources

Development of a clean hot water drill to access Subglacial Lake CECs, West Antarctica [PDF]

open access: yesAnnals of Glaciology, 2021
Recent drilling successes on Rutford Ice Stream in West Antarctica demonstrate the viability of hot water drilling subglacial access holes to depths >2000 m.
Keith Makinson   +9 more
doaj   +2 more sources

The "tipping" temperature within Subglacial Lake Ellsworth, West Antarctica and its implications for lake access [PDF]

open access: yesThe Cryosphere, 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 ...
M. Thoma   +5 more
doaj   +3 more sources

Potential subglacial lake locations and meltwater drainage pathways beneath the Antarctic and Greenland ice sheets [PDF]

open access: yesThe Cryosphere, 2013
We use the Shreve hydraulic potential equation as a simplified approach to investigate potential subglacial lake locations and meltwater drainage pathways beneath the Antarctic and Greenland ice sheets. We validate the method by demonstrating its ability
S. J. Livingstone   +3 more
doaj   +3 more sources

A revised inventory of Antarctic subglacial lakes [PDF]

open access: yesAntarctic Science, 2005
The locations and details of 145 Antarctic subglacial lakes are presented. The inventory is based on a former catalogue of lake-type features, which has been subsequently reanalysed, and on the results from three additional datasets. The first is from Italian radio-echo sounding (RES) of the Dome C region of East Antarctica, from which 14 new lakes are
Siegert, Martin   +4 more
openaire   +5 more sources

Modeling Antarctic subglacial lake filling and drainage cycles [PDF]

open access: yesThe Cryosphere, 2016
The growth and drainage of active subglacial lakes in Antarctica has previously been inferred from analysis of ice surface altimetry data. We use a subglacial hydrology model applied to a synthetic Antarctic ice stream to examine internal controls on the
C. F. Dow   +3 more
doaj   +2 more sources

Subglacial lakes and hydrology across the Ellsworth Subglacial Highlands, West Antarctica [PDF]

open access: yesThe Cryosphere, 2020
Subglacial water plays an important role in ice sheet dynamics and stability. Subglacial lakes are often located at the onset of ice streams and have been hypothesised to enhance ice flow downstream by lubricating the ice–bed interface.
F. Napoleoni   +14 more
doaj   +6 more sources

Tracking the Filling, Outburst Flood and Resulting Subglacial Water Channel From a Large Canadian Arctic Subglacial Lake

open access: yesGeophysical Research Letters
We use digital elevation models (DEMs) and ICESat‐2 data to study the filling and outflow from a large subglacial lake under Manson Icefield in the Canadian Arctic. When full, the lake is ∼17 × 3 km with an area of 52 km2.
Laurence Gray   +2 more
exaly   +2 more sources

Filling and drainage of a subglacial lake beneath the Flade Isblink ice cap, northeast Greenland [PDF]

open access: yesThe 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

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