Results 141 to 150 of about 713 (170)

Massive losses and gains of northern land carbon stocks since the Last Glacial Maximum. [PDF]

Sci Adv
Lindgren A, Kuhry P, Holloway M, Lu Z, Tanski G, Hugelius G.   +5 more
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Assessing the subglacial lake coverage of Antarctica

, 2015
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Antarctic subglacial lakes

Earth-Science Reviews, 2000
Abstract Antarctic subglacial lakes were first identified by Robin et al. (1970) after airborne radio-echo sounding (RES) investigations of the ice-sheet interior. Recently, satellite altimetry was used to measure anomalous near-flat regions on the ice-sheet surface that represent a manifestation of the subglacial lake beneath.
Martin J Siegert
exaly   +2 more sources

Rapid discharge connects Antarctic subglacial lakes

Nature, 2006
The existence of many subglacial lakes provides clear evidence for the widespread presence of water beneath the East Antarctic ice sheet, but the hydrology beneath this ice mass is poorly understood. Such knowledge is critical to understanding ice flow, basal water transfer to the ice margin, glacial landform development and subglacial lake habitats ...
Duncan J Wingham, Martin J Siegert, Andrew Shepherd   +2 more
exaly   +4 more sources

The physiography of modern Antarctic subglacial lakes

Global and Planetary Change, 2003
The size and distribution of Antarctic subglacial lakes have been investigated using airborne radio-echo sounding (RES) and satellite radar altimetry. Over 70 lakes have been identified beneath the ice sheet from distinctive, mirror-like reflectors observed on RES records.
Julian A Dowdeswell, Martin J Siegert
exaly   +2 more sources

Cascades of subglacial lakes in Antarctica

Doklady Earth Sciences, 2012
Progress in understanding cascades of subglacial lakes in Antarctica and in the dynamics of their surface was derived using satellite laser altimetry measurements ICESat. The morphological and dynamical signs indicate subglacial lakes and the positions of their shore lines. Oscillations of surfaces in transition zones are periodic, while the changes in
V. M. Kotlyakov, L. N. Vasiliev, A. B. Kachalin, M. Yu. Moskalevsky, A. S. Tyuflin   +4 more
openaire   +1 more source

Antarctic subglacial lake discharges

2011
info:eu-repo/semantics ...
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Deep Clustering in Subglacial Reflections Reveals New Insight into Subglacial Lakes

2023
Radar images imply subglacial features, including distinct reflections from ice bottom. Different from bedrock interfaces, subglacial lakes generally display smooth and continuous highlights as a special type of ice bottom reflectors in radar images. In this study, we construct a dataset of ice bottom reflectors based on CReSIS radar sounder dataset. A
Sheng Dong, Lei Fu
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A fourth inventory of Antarctic subglacial lakes

Antarctic Science, 2012
AbstractAntarctic subglacial lakes are studied for three main scientific reasons. First, they form an important component of the basal hydrological system which is known to affect the dynamics of the ice sheet. Second, they are amongst the most extreme viable habitats on Earth and third, if sediments exist on their floors, they may contain high ...
Andrew Wright, Martin Siegert
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Subglacial Antarctic Lake Vostok

2023
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