Results 31 to 40 of about 2,075 (207)

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

Polar 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, Hongling Shi, Yang Lu, Zizhan Zhang, Hui Xi   +4 more
doaj   +1 more source

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

E3S 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, Lang Shinan, Guo Jingxue, Sun Bo   +3 more
doaj   +1 more source

Distribution and dynamics of Greenland subglacial lakes [PDF]

Nature Communications, 2019
AbstractFew subglacial lakes have been identified beneath the Greenland Ice Sheet (GrIS) despite extensive documentation in Antarctica, where periodic release of water can impact ice flow. Here we present an ice-sheet-wide survey of Greenland subglacial lakes, identifying 54 candidates from airborne radio-echo sounding, and 2 lakes from ice-surface ...
J. S. Bowling, S. J. Livingstone, A. J. Sole, W. Chu   +3 more
openaire   +5 more sources

Glaciohydraulic seismic tremors on an Alpine glacier [PDF]

The 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, F. Walter, G. Laske, F. Gimbert   +3 more
doaj   +1 more source

Subglacial Lake Ellsworth: a candidate for in situ exploration in West Antarctica [PDF]

, 2004
Radio-echo sounding reveals a 10 km-long lake beneath similar to3.4 km of ice near the Ellsworth Mountains in West Antarctica, 20 km from the ice divide. Subglacial Lake Ellsworth is located within a distinct topographic hollow, which is similar to1.5 km
Corr, H., Woodward, J., Payne, AJ, Joughin, I., King, Edward, Smith, Andrew, Siegert, MJ, King, E. C., Smith, A., Siegert, Martin J., Woodward, J, Hindmarsh, RCA, Corr, Hugh, Woodward, John, King, E, Payne, Antony J., Corr, H, King, Edward C., Payne, A. J., Hindmarsh, Richard, Joughin, Ian, Siegert, Martin, Siegert, M. J., Joughin, I, Smith, Andy, Smith, AM, Hindmarsh, R.   +26 more
core   +1 more source

Exploring subglacial Antarctic lake environments [PDF]

Eos, Transactions American Geophysical Union, 2005
While subglacial lakes have been suspected, and speculated about, for more than 50 years, recent analyses of historical and new data have shown that liquid water environments are common beneath the vast Antarctic Ice Sheet. Airborne radar surveys have now documented more than 145 subglacial lakes, the largest being Lake Vostok located 4 km beneath the ...
Priscu, J. C., Kennicutt, M. C., Bell, Robin E., Bulat, S. A., Ellis-Evans, J. C., Lukin, V. V., Petit, J.-R., Powell, R. D., Siegert, M. J., Tabacco, I.   +9 more
openaire   +4 more sources

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

Annals 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, Xiao Jiang, Yongzhen Tang, Chong Li, Xiaodong Li, Shengmiao Huang, Tianxin Zhu, Jianguang Shi, Youhong Sun, Pavel Talalay, Xiaopeng Fan, Nan Zhang, Bing Li, Da Gong, Haibin Yu   +14 more
doaj   +1 more source

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

The 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, A. Rutishauser, D. D. Blankenship, D. D. Blankenship, D. A. Young, N. S. Wolfenbarger, L. H. Beem, M. L. Skidmore, A. Dubnick, A. S. Criscitiello   +9 more
doaj   +1 more source

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, Tranter, Martyn, Smith, Andrew M, Mowlem, M., Ross, N., Hodgson, Dominic A., Ross, N, Parnell, J, Rose, Mike, Mowlem, Matt, Bentley, Michael J., Siegert, MJ, Parnell, John, Mowlem, Matthew, Pearce, D., Hodgson, D.A., Siegert, M.J., Siegert, Martin J., Bentley, M.J., Tranter, M., Tranter, M, Rose, M, Smith, A.M., Ross, Neil, Smith, Andrew M., Makinson, K, Hodgson, DA, Makinson, Keith, Bentley, Michael, Hodgson, Dominic, Mowlem, M, Rose, M., Pearce, David, Pearce, D, Makinson, K., Siegert, Martin, Smith, AM, Parnell, J., Bentley, MJ   +38 more
core   +1 more source

An ice-sheet scale comparison of eskers with modelled subglacial drainage routes [PDF]

, 2015
Eskers record the signature of channelised meltwater drainage during deglaciation providing vital information on the nature and evolution of subglacial drainage.
Stokes, C.R., C.D. Clark (630927), Storrar, RD, Clark, CD, Tarasov, L, Stokes, Chris R., Hillier, J.K., Clark, C.D., Livingstone, SJ, Clark, Chris D., C.R. Stokes (630946), Tarasov, L., Livingstone, S.J., Stephen J. Livingstone (3691018), Tarasov, Lev, Livingstone, Stephen J., John Hillier (1254873), Storrar, Robert D., R. Storrar (630947), Hillier, JK, Hillier, John K., L. Tarasov (7191965), Storrar, R.D., Stokes, CR   +23 more
core   +1 more source