Results 21 to 30 of about 1,100,902 (296)
Investigating the internal structure of the Antarctic ice sheet: the utility of isochrones for spatiotemporal ice-sheet model calibration [PDF]
The Cryosphere, 2021 Ice-sheet models are a powerful tool to project the evolution of the Greenland and Antarctic ice sheets and thus their future contribution to global sea-level changes. Testing the ability of ice-sheet models to reproduce the ongoing and past evolution of
J. Sutter +3 more
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Research progress in geophysical exploration of the Antarctic ice sheet
Earthquake Research Advances, 2023 The Antarctic ice sheet is an important target of Antarctic research. Thickness and structure, including intraice and subice, are closely related to the mass balance of the ice sheet, and play an important role in the study of global sea level and ...
Jinkai An +4 more
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The Last Scottish Ice Sheet [PDF]
Earth and Environmental Science Transactions of the Royal Society of Edinburgh, 2018 ABSTRACTThe last Scottish Ice Sheet (SIS) expanded from a pre-existing ice cap after ∼35 ka. Highland ice dominated, with subsequent build-up of a Southern Uplands ice mass. The Outer Hebrides, Skye, Mull, the Cairngorms and Shetland supported persistent independent ice centres.
Ballantyne, Colin K., Small, David
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Antarctic ice sheet response to sudden and sustained ice-shelf collapse (ABUMIP)
Journal of Glaciology, 2020 Antarctica's ice shelves modulate the grounded ice flow, and weakening of ice shelves due to climate forcing will decrease their ‘buttressing’ effect, causing a response in the grounded ice.
Sainan Sun +28 more
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Cosmogenic-nuclide data from Antarctic nunataks can constrain past ice sheet instabilities [PDF]
The Cryosphere, 2023 We apply geologic evidence from ice-free areas in Antarctica to evaluate model simulations of ice sheet response to warm climates. This is important because such simulations are used to predict ice sheet behaviour in future warm climates, but geologic ...
A. R. W. Halberstadt +3 more
doaj +2 more sources
Frontiers in Earth Science, 2019 On April 7, 2016 the Nansen ice shelf (NIS) front calved into two icebergs, the first large-scale calving event in >30 years. Three hydrophone moorings were deployed seaward of the NIS in December 2015 and over the following months recorded hundreds ...
R. P. Dziak +10 more
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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
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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.
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Tracer transport in an isochronal ice-sheet model
Journal of Glaciology, 2017 The full history of ice sheet and climate interactions is recorded in the vertical profiles of geochemical tracers in polar ice sheets. Numerical simulations of these archives promise great advances both in the interpretation of these reconstructions and
ANDREAS BORN
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Modeling the Greenland englacial stratigraphy [PDF]
The Cryosphere, 2021 Radar reflections from the interior of the Greenland ice sheet contain a comprehensive archive of past accumulation rates, ice dynamics, and basal melting. Combining these data with dynamic ice sheet models may greatly aid model calibration, improve past
A. Born +4 more
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