Results 51 to 60 of about 1,554,346 (328)

Recent deposition of 210Pb on the Greenland ice sheet: variations in space and time [PDF]

open access: yes, 1990
Detailed 210Pb profiles were determined for four Chernobyl dated\u27 snowpits sampled during a wide-ranging survey of the Greenland ice sheet during the 1988 season.
Dibb, Jack E.
core   +2 more sources

On the initiation of ice sheets [PDF]

open access: yesAnnals 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
openaire   +2 more sources

GrSMBMIP: intercomparison of the modelled 1980–2012 surface mass balance over the Greenland Ice Sheet

open access: yesThe 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

A theoretical steady state profile of ice sheets (two-dimentional model)

open access: yesAntarctic Record, 1977
The Nye's kinematic theory of ice sheet profiles is revised on the basis of the conservation law of ice mass, because the Nye's ice sheet model or the revised Haefeli's model does not satisfy the ice mass conservation law and therefore they cannot have a
Takesi Nagata
doaj   +1 more source

The uncertain future of the Antarctic Ice Sheet

open access: yesScience, 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

Ice streams in the Laurentide Ice Sheet: Identification, characteristics and comparison to modern ice sheets [PDF]

open access: yesEarth-Science Reviews, 2015
AbstractThis paper presents a comprehensive review and synthesis of ice streams in the Laurentide Ice Sheet (LIS) based on a new mapping inventory that includes previously hypothesised ice streams and includes a concerted effort to search for others from across the entire ice sheet bed. The inventory includes 117 ice streams, which have been identified
Margold, Martin   +2 more
openaire   +3 more sources

Dynamical response of atmospheric circulation to below-normal East Sea sea surface temperatures associated with heavy snowfall in eastern Korea

open access: yesEnvironmental Research Letters, 2020
Prior studies have shown that above-normal sea surface temperatures (SSTs) enhance snowfall over Korea. Here, we show that heavy snow is also associated with below-normal East Sea SSTs, and we investigate the dynamical response of the atmosphere to this ...
Taekyun Kim   +3 more
doaj   +1 more source

A last glacial ice sheet on the Pacific Russian coast and catastrophic change arising from coupled ice–volcanic interaction [PDF]

open access: yes, 2008
Controversy exists over the extent of glaciation in Eastern Asia at the Last Glacial Maximum: complete ice sheet cover vs. restricted mountain icefields (an area discrepancy equivalent to 3.7 Greenland Ice Sheets).
Bigg, G.R., Clark, C.D., Hughes, A.L.C.
core   +1 more source

Subglacial roughness of the Greenland Ice Sheet: relationship with contemporary ice velocity and geology

open access: yesThe Cryosphere, 2019
. The subglacial environment of the Greenland Ice Sheet (GrIS) is poorly constrained both in its bulk properties, for example geology, the presence of sediment, and the presence of water, and interfacial conditions, such as roughness and bed rheology ...
M. Cooper   +5 more
semanticscholar   +1 more source

Twenty-first century ocean forcing of the Greenland ice sheet for modelling of sea level contribution

open access: yesThe Cryosphere, 2020
. Changes in ocean temperature and salinity are expected to be an important determinant of the Greenland ice sheet's future sea level contribution. Yet, simulating the impact of these changes in continental-scale ice sheet models remains challenging due ...
D. Slater   +7 more
semanticscholar   +1 more source

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