Results 31 to 40 of about 862,051 (192)

Clean subglacial access: prospects for future deep hot-water drilling [PDF]

open access: yes, 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
core   +1 more source

Subglacial discharge weakens the stability of the Ross Ice Shelf around the grounding line

open access: yesPolar Research, 2021
In this paper, we examine potential impact of discharge in Subglacial Lake Engelhardt, West Antarctica, on the stability of the Ross Ice Shelf around the grounding line by combining satellite altimetry and remote sensing images.
Yan Li   +4 more
doaj   +1 more source

Detecting and Searching for subglacial lakes through airborne radio-echo sounding in Princess Elizabeth Land (PEL), Antarctica [PDF]

open access: yesE3S Web of Conferences, 2020
Over 400 subglacial lakes were discovered in Antarctica through radio-echo sounding (RES) method and remote sensing. Subglacial lakes have significance in lubricating ice-bedrock interface and enhancing ice flow.
Cui Xiangbin   +3 more
doaj   +1 more source

Preliminary analysis of life within a former subglacial lake sediment in Antarctica [PDF]

open access: yes, 2013
Since the first descriptions of Antarctic subglacial lakes, there has been a growing interest and awareness of the possibility that life will exist and potentially thrive in these unique and little known environments. The unusual combination of selection
Thorne, Michael A. S.   +17 more
core   +1 more source

Recoverable autonomous sonde for subglacial lake exploration: electronic control system design

open access: yesAnnals of Glaciology, 2021
Subglacial lake exploration is of great interest to the science community. RECoverable Autonomous Sonde (RECAS) provides an exploration tool to measure and sample subglacial lake environments while the subglacial lake remains isolated from the glacier ...
Shilin Peng   +14 more
doaj   +1 more source

Glaciohydraulic seismic tremors on an Alpine glacier [PDF]

open access: yesThe Cryosphere, 2020
Hydraulic processes impact viscous and brittle ice deformation. Water-driven fracturing as well as turbulent water flow within and beneath glaciers radiate seismic waves which provide insights into otherwise hard-to-access englacial and subglacial ...
F. Lindner   +3 more
doaj   +1 more source

Radar sounding survey over Devon Ice Cap indicates the potential for a diverse hypersaline subglacial hydrological environment [PDF]

open access: yesThe Cryosphere, 2022
Prior geophysical surveys provided evidence for a hypersaline subglacial lake complex beneath the center of Devon Ice Cap, Canadian Arctic; however, the full extent and characteristics of the hydrological system remained unknown due to limited data ...
A. Rutishauser   +9 more
doaj   +1 more source

Is Vostok lake in steady state? [PDF]

open access: yes, 2004
Stable-isotope (D and 18O) data from the Vostok (East Antarctica) ice core are used to explore whether or not subglacial Vostok lake is in isotopic steady state. A simple box model shows that the lake is likely to be in steady state on time-scales of the
Royston-Bishop, G   +9 more
core   +1 more source

Penetration of Antarctic subglacial lakes by VHF electromagnetic pulses: Information on the depth and electrical conductivity of basal water bodies [PDF]

open access: yes, 1999
Owing to the high level of absorption of very high frequency radio waves in water, previous investigators of airborne radio echo sounding (RES) data from Antarctica have assumed that the depth of subglacial lakes cannot be measured directly by this ...
Martin J. Siegert   +3 more
core   +1 more source

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   +1 more source

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