Results 41 to 50 of about 1,626,068 (395)
Ice Sheets and the Anthropocene
Geological Society, London, Special Publications, 2013 Abstract Ice could play a role in identifying and defining the Anthropocene. The recurrence of northern hemisphere glaciation and the stability of the Greenland Ice Sheet are both potentially vulnerable to human impact on the environment. However, only a very long hiatus in either would be unusual in the context of the Quaternary
Eric W. Wolff, Eric W. Wolff
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Investigating the local-scale influence of sea ice on Greenland surface melt [PDF]
The Cryosphere, 2017 Rapid decline in Arctic sea ice cover in the 21st century may have wide-reaching effects on the Arctic climate system, including the Greenland ice sheet mass balance. Here, we investigate whether local changes in sea ice around the Greenland ice sheet
J. C. Stroeve +6 more
doaj +1 more source
Forty-six years of Greenland Ice Sheet mass balance from 1972 to 2018
Proceedings of the National Academy of Sciences of the United States of America, 2019 Significance We reconstruct the mass balance of the Greenland Ice Sheet for the past 46 years by comparing glacier ice discharge into the ocean with interior accumulation of snowfall from regional atmospheric climate models over 260 drainage basins.
J. Mouginot +8 more
semanticscholar +1 more source
Greenland ice sheet mass balance assessed by PROMICE (1995–2015)
Geological Survey of Denmark and Greenland Bulletin, 2019 The Programme for Monitoring of the Greenland Ice Sheet (PROMICE) has measured ice-sheet elevation and thickness via repeat airborne surveys circumscribing the ice sheet at an average elevation of 1708 ± 5 m (Sørensen et al. 2018).
William Colgan +20 more
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The Chernobyl Reference Horizon (?) in the Greenland Ice Sheet [PDF]
, 1989 Published reports of the presence of radioactive debris from the Chernobyl reactor accident in snow on the Greenland ice sheet raised the strong prospect that such debris might constitute a valuable time stratigraphic marker all over the ice sheet. Large
Dibb, Jack E.
core +2 more sources
Annals of Glaciology, 1984 This paper presents a review of the ice-sheet mechanics behind the modeling work of Pleistocene ice sheets driven by astronomical (Milankovitch) forcing.
J. Weertman, G. E. Birchfield
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The uncertain future of the Antarctic Ice Sheet
Science, 2020 The Antarctic Ice Sheet is losing mass at an accelerating pace, and ice loss will likely continue over the coming decades and centuries. Some regions of the ice sheet may reach a tipping point, potentially leading to rates of sea level rise at least an ...
F. Pattyn, Mathieu Morlighem
semanticscholar +1 more source
On the initiation of ice sheets [PDF]
Annals of Glaciology, 1993 The initiation and evolution of ice sheets are investigated using a two-dimensional thermo-mechanical ice-sheet model. The importance of the amount of snow accumulation on the ice sheet initiation is summarised in the following three points: (1) an ice sheet can grow from an initial area of less than 50 km diameter with a positive but large-enough ...
Heinz Blatter, Ayako Abe-Ouchi
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The Cryosphere, 2020 . Observations and models agree that the Greenland Ice Sheet (GrIS) surface mass balance (SMB) has decreased since the end of the 1990s due to an increase in meltwater runoff and that this trend will accelerate in the future. However, large uncertainties
X. Fettweis +40 more
semanticscholar +1 more source
Evidence of meltwater retention within the Greenland ice sheet [PDF]
The Cryosphere, 2013 Greenland ice sheet mass losses have increased in recent decades with more than half of these attributed to surface meltwater runoff. However, the magnitudes of englacial storage, firn retention, internal refreezing and other hydrologic processes that ...
A. K. Rennermalm +7 more
doaj +1 more source