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 +5 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 +9 more sources
A seismic analysis of subglacial lake D2 (Subglacial Lake Cheongsuk) beneath David Glacier, Antarctica [PDF]
The CryosphereSubglacial lakes beneath Antarctic glaciers are pivotal in advancing our understanding of cryosphere dynamics, basal hydrology, and microbial ecosystems. We investigate the internal structure and physical properties of Subglacial Lake D2 (SLD2), which is
H. Ju +9 more
doaj +5 more sources
Clean access, measurement, and sampling of Ellsworth Subglacial Lake: A method for exploring deep Antarctic subglacial lake environments [PDF]
Reviews of Geophysics, 2012 Antarctic subglacial lakes are thought to be extreme habitats for microbial life and may contain important records of ice sheet history and climate change within their lake floor sediments. To find whether or not this is true, and to answer the science questions that would follow, direct measurement and sampling of these environments are required. Ever
Martin J Siegert +2 more
exaly +7 more sources
Physiological Ecology of Microorganisms in Subglacial Lake Whillans. [PDF]
Front Microbiol, 2016 Subglacial microbial habitats are widespread in glaciated regions of our planet. Some of these environments have been isolated from the atmosphere and from sunlight for many thousands of years. Consequently, ecosystem processes must rely on energy gained from the oxidation of inorganic substrates or detrital organic matter.
Vick-Majors TJ +10 more
europepmc +5 more sources
Biogeochemical and historical drivers of microbial community composition and structure in sediments from Mercer Subglacial Lake, West Antarctica [PDF]
ISME Communications, 2023 Ice streams that flow into Ross Ice Shelf are underlain by water-saturated sediments, a dynamic hydrological system, and subglacial lakes that intermittently discharge water downstream across grounding zones of West Antarctic Ice Sheet (WAIS).
Christina L. Davis +15 more
doaj +2 more sources
Geology and environments of subglacial Lake Vostok [PDF]
Philosophical Transactions Series A, Mathematical, Physical, and Engineering Sciences, 2016 The reconstruction of the geological (tectonic) structure and environments of subglacial Lake Vostok is based on geophysical surveys and the study of mineral particles found in cores of accreted ice and frozen lake water (sampled after the lake was unsealed).
G Leitchenkov, Vladimir Ya Lipenkov
exaly +3 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