Results 41 to 50 of about 1,208,167 (355)
Simulating the Early Holocene demise of the Laurentide Ice Sheet with BISICLES (public trunk revision 3298) [PDF]
Geoscientific Model Development, 2020 Simulating the demise of the Laurentide Ice Sheet covering Hudson Bay in the Early Holocene (10–7 ka) is important for understanding the role of accelerated changes in ice sheet topography and melt in the 8.2 ka event, a century long ...
I. S. O. Matero +3 more
doaj +1 more source
Drill-site selection for cosmogenic-nuclide exposure dating of the bed of the Greenland Ice Sheet [PDF]
The Cryosphere, 2022 Direct observations of the size of the Greenland Ice Sheet during Quaternary interglaciations are sparse yet valuable for testing numerical models of ice-sheet history and sea level contribution. Recent measurements of cosmogenic nuclides in bedrock from
J. P. Briner +10 more
doaj +1 more source
Environmental 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
Ice sheet contributions to future sea-level rise from structured expert judgment
Proceedings of the National Academy of Sciences of the United States of America, 2019 Significance Future sea level rise (SLR) poses serious threats to the viability of coastal communities, but continues to be challenging to project using deterministic modeling approaches. Nonetheless, adaptation strategies urgently require quantification
J. Bamber +4 more
semanticscholar +1 more source
Sensitivity of Heinrich-type ice-sheet surge characteristics to boundary forcing perturbations [PDF]
Climate of the Past, 2023 Heinrich-type ice-sheet surges are one of the prominent signals of glacial climate variability. They are characterised as abrupt, quasi-periodic episodes of ice-sheet instabilities during which large numbers of icebergs are released from the Laurentide ...
C. Schannwell +3 more
doaj +1 more source
The 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
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
Antarctic ice sheet thickness estimation using the horizontal-to-vertical spectral ratio method with single-station seismic ambient noise [PDF]
The Cryosphere, 2018 We report on a successful application of the horizontal-to-vertical spectral ratio (H / V) method, generally used to investigate the subsurface velocity structures of the shallow crust, to estimate the Antarctic ice sheet thickness for the first time.
P. Yan +6 more
doaj +1 more source
Philosophical Transactions of the Royal Society B: Biological Sciences, 2013 Snow and ice play their most important role in the nitrogen cycle as a barrier to land–atmosphere and ocean–atmosphere exchanges that would otherwise occur. The inventory of nitrogen compounds in the polar ice sheets is approximately 260 Tg N, dominated by nitrate in the much larger Antarctic ice sheet.
openaire +3 more sources
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