Constraints on subglacial melt fluxes from observations of active subglacial lake recharge
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 +4 more sources
Detection of 85 new active subglacial lakes in Antarctica from a decade of CryoSat-2 data [PDF]
Nature CommunicationsSubglacial lake activity influences ice sheet flow, grounding line discharge and ice shelf basal melting. Although 146 active subglacial lakes have been detected in Antarctica via ice surface elevation change associated with their activity, only 36 fill ...
Sally F. Wilson +5 more
doaj +2 more sources
Estimating effective pressures in active subglacial lakes with ICESat-2 satellite altimetry [PDF]
Journal of GlaciologyThe difference between the ice and water pressures, or the effective pressure, influences water flow and sliding at the ice-bed interface. Effective pressure is typically quantified with subglacial hydrology models because direct measurements of the ...
Aaron Stubblefield +3 more
doaj +2 more sources
Evidence for a palaeo-subglacial lake on the Antarctic continental shelf [PDF]
Nature Communications, 2017 While a number of subglacial lakes have been discovered beneath the modern Antarctic ice sheet, little is known regarding their prevalence during past glaciations. Here, Kuhnet al. present sedimentological evidence for an active palaeo-subglacial lake in
Gerhard Kuhn +9 more
doaj +2 more sources
Geophysical Research LettersWe 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 +6 more
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Metatranscriptomic and Metagenomic Analysis of Biological Diversity in Subglacial Lake Vostok (Antarctica) [PDF]
Biology, 2020 Scott Rogers
exaly +2 more sources
Filling and drainage of a subglacial lake beneath the Flade Isblink ice cap, northeast Greenland [PDF]
The 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
AN AUTOMATIC EXTRACTION METHOD FOR ANTARCTIC SUBGLACIAL LAKE BASED ON RADIO ECHO SOUNDING DATA [PDF]
The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2021 Detection of subglacial lakes and interpretation their hydrological connectivity is of great importance to understanding the mass balance of Antarctic ice sheet.
D. Wang +7 more
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Reconstructing subglacial lake activity with an altimetry-based inverse method
Journal of Glaciology, 2023 Subglacial lake water-volume changes produce ice-elevation anomalies that provide clues about water flow beneath glaciers and ice sheets. Significant challenges remain in the quantitative interpretation of these elevation-change anomalies because the ...
Aaron G. Stubblefield +4 more
doaj +1 more source
Journal of Glaciology, 2023 Hydrologic pathways beneath ice sheets and glaciers play an important role in regulating ice flow. Antarctica has experienced, and will continue to experience, changes in ice dynamics and geometry, but the associated changes in subglacial hydrology have ...
Anna-Mireilla Hayden, Christine F. Dow
doaj +1 more source