Results 11 to 20 of about 692 (179)
Deep clustering in subglacial radar reflectance reveals subglacial lakes [PDF]
The CryosphereIce-penetrating radar (IPR) imaging is a valuable tool for observing the internal structure and bottom of ice sheets. Subglacial water bodies, also known as subglacial lakes, generally appear as distinct, bright, flat, and continuous reflections in IPR ...
S. Dong +8 more
doaj +4 more sources
Constraints on subglacial melt fluxes from observations of active subglacial lake recharge [PDF]
Journal of Glaciology, 2023 Active subglacial lakes provide a rare glimpse of the subglacial environment and hydrological processes at play. Several studies contributed to establishing active subglacial lake inventories and document lake drainage and connection, but few focused on ...
George Malczyk +4 more
doaj +3 more sources
Improved monitoring of subglacial lake activity in Greenland [PDF]
The Cryosphere, 2022 Subglacial lakes form beneath ice sheets and ice caps if water is available and if bedrock and surface topography are able to retain the water. On a regional scale, the lakes modulate the timing and rate of freshwater flow through the subglacial system ...
L. Sandberg Sørensen +14 more
doaj +7 more sources
Assessing the subglacial lake coverage of Antarctica [PDF]
Annals 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 +4 more sources
Turbulent convection in subglacial lakes [PDF]
Journal of Fluid Mechanics, 2021 Abstract
openaire +4 more sources
Active subglacial lakes and channelized water flow beneath the Kamb Ice Stream [PDF]
The Cryosphere, 2016 We identify two previously unknown subglacial lakes beneath the stagnated trunk of the Kamb Ice Stream (KIS). Rapid fill-drain hydrologic events over several months are inferred from surface height changes measured by CryoSat-2 altimetry and indicate ...
B.-H. Kim +4 more
doaj +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. +9 more
openaire +4 more sources
DYNAMICS OF ICE SHEET SURFACE OVER SUBGLACIAL LAKES IN ANTARCTICA
Лëд и снег, 2015 Progress in understanding cascades of subglacial lakes inAntarcticaand surface dynamics was derived using satellite laser altimetry measurements ICESat. The morphological and dynamical pattern troughs and swells indicate subglacial lakes and positions of
V. M. Kotlyakov +4 more
doaj +1 more source
Antarctic subglacial lakes drain through sediment-floored canals: theory and model testing on real and idealized domains [PDF]
The Cryosphere, 2017 Over the past decade, satellite observations of ice surface height have revealed that active subglacial lake systems are widespread under the Antarctic Ice Sheet, including the ice streams. For some of these systems, additional observations of ice-stream
S. P. Carter +2 more
doaj +1 more source
Remote Sensing, 2022 Monitoring the hydrological activities of subglacial lakes is critical to understanding the subglacial hydrological system and evaluating the internal mass changes of the Antarctic ice sheet.
Yi Fan +6 more
doaj +1 more source