Results 21 to 30 of about 386,787 (295)
Development of a low-temperature immersion microscopy technique for ice research
Annals of Glaciology, 2023 Perennial ice can be studied for many purposes, including paleoclimate records or rheological properties. For most of those purposes, the ice microstructure must be studied, often through optical microscopy.
Bittor Muniozguren-Arostegi +2 more
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Quantifying fusion born ion populations in magnetically confined plasmas using ion cyclotron emission [PDF]
, 2016 Ion cyclotron emission (ICE) offers unique promise as a diagnostic of the fusion born alpha-particle population in magnetically confined plasmas. Pioneering observations from JET and TFTR found that ICE intensity $P_{ICE}$ scales approximately linearly ...
Carbajal, L. +3 more
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A novel conceptual model for Dansgaard–Oeschger event dynamics based on ice-core data [PDF]
Climate of the PastThis study introduces a novel dynamical systems model designed to capture the highly non-periodic nature of Dansgaard–Oeschger (DO) events. Such events are difficult to model adequately due to their variable durations (some lasting around 1 century ...
J. O. Melcher +5 more
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Factors controlling the bifurcation structure of sea ice retreat [PDF]
, 2012 The contrast in surface albedo between sea ice and open ocean suggests the possibility of an unstable climate state flanked by two separate stable climate states. Previous studies using idealized single-column models and comprehensive climate models have
Eisenman, Ian
core +1 more source
Observation of magnetic fragmentation in spin ice [PDF]
, 2016 Fractionalised excitations that emerge from a many body system have revealed rich physics and concepts, from composite fermions in two-dimensional electron systems, revealed through the fractional quantum Hall effect, to spinons in antiferromagnetic ...
Balakrishnan, G. +9 more
core +4 more sources
Scientific Reports, 2018 The Barents Sea Ice Sheet was a marine-based ice sheet, i.e., it rested on the Barents Sea floor during the Last Glacial Maximum (21 ky BP). The Bjørnøyrenna Ice Stream was the largest ice stream draining the Barents Sea Ice Sheet and is regarded as an ...
Michele Petrini +9 more
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Strengthening ice through cyclic loading
Journal of Glaciology, 2017 New experiments reveal that the flexural strength of fresh water, columnar-grained ice loaded normal to the columns may be increased by about a factor of two upon reversed cyclic loading at a frequency of ~0.1 Hz at stress amplitudes of 1.3–2.6 MPa.
DANIEL ILIESCU +3 more
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Pore Accessibility in Amorphous Solid Water
The Astrophysical Journal, 2022 The porous nature of amorphous solid water (ASW) can significantly effect the chemical evolution of any planetary or astrophysical surface it forms on due to its ability to trap and retain volatiles. The amount of volatiles that can enter an ASW grain or
Rebecca A. Carmack +2 more
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Impact of rheology on probabilistic forecasts of sea ice trajectories: application for search and rescue operations in the Arctic [PDF]
, 2018 We present a sensitivity analysis and discuss the probabilistic forecast capabilities of the novel sea ice model neXtSIM used in hindcast mode. The study pertains to the response of the model to the uncertainty on winds using probabilistic forecasts of ...
Bertino, Laurent +4 more
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Seasonal Arctic sea ice forecasting with probabilistic deep learning
Nature Communications, 2021 Accurate seasonal forecasts of sea ice are highly valuable, particularly in the context of sea ice loss due to global warming. A new machine learning tool for sea ice forecasting offers a substantial increase in accuracy over current physics-based ...
Tom R. Andersson +16 more
doaj +1 more source