Results 21 to 30 of about 2,075 (207)

AN AUTOMATIC EXTRACTION METHOD FOR ANTARCTIC SUBGLACIAL LAKE BASED ON RADIO ECHO SOUNDING DATA [PDF]

open access: yesThe 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
doaj   +1 more source

Reconstructing subglacial lake activity with an altimetry-based inverse method

open access: yesJournal 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

Examining the effect of ice dynamic changes on subglacial hydrology through modelling of a synthetic Antarctic glacier

open access: yesJournal 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

Subglacial lake drainage detected beneath the Greenland ice sheet. [PDF]

open access: yesNat Commun, 2015
The contribution of the Greenland ice sheet to sea-level rise has accelerated in recent decades. Subglacial lake drainage events can induce an ice sheet dynamic response—a process that has been observed in Antarctica, but not yet in Greenland, where the ...
Palmer S, McMillan M, Morlighem M.
europepmc   +3 more sources

Geophysical constraints on the properties of a subglacial lake in northwest Greenland [PDF]

open access: yesThe Cryosphere, 2021
In this study, we report the results of an active-source seismology and ground-penetrating radar survey performed in northwestern Greenland at a site where the presence of a subglacial lake beneath the accumulation area has previously been proposed. Both
R. Maguire   +13 more
doaj   +1 more source

Drainage and refill of an Antarctic Peninsula subglacial lake reveal an active subglacial hydrological network [PDF]

open access: yesThe Cryosphere, 2022
The presence of subglacial lakes and subglacial hydrological networks under the East and West Antarctic ice sheets is now relatively well understood, whilst their influence on ice dynamics is the subject of ongoing research.
D. A. Hodgson   +4 more
doaj   +1 more source

Basal melting over Subglacial Lake Ellsworth and its catchment: insights from englacial layering

open access: yesAnnals of Glaciology, 2020
Deep-water ‘stable’ subglacial lakes likely contain microbial life adapted in isolation to extreme environmental conditions. How water is supplied into a subglacial lake, and how water outflows, is important for understanding these conditions. Isochronal
Neil Ross, Martin Siegert
doaj   +1 more source

Determining Ice-Sheet Uplift Surrounding Subglacial Lakes with a Viscous Plate Model

open access: yesFrontiers in Earth Science, 2017
We develop a viscous model of plate bending suitable for studying ice-sheet flexure due to subglacial lake filling and draining, and apply this model to determine the area of ice-sheet uplift surrounding a subglacial lake.
Ryan T. Walker   +5 more
doaj   +1 more source

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