Results 61 to 70 of about 1,304,319 (320)
Journal of Glaciology, 2018 Ice rheology governs how glaciers flow and respond to environmental change. The rheology of glacier ice evolves in response to a variety of mechanisms, including damage, heating, melting and the development of crystalline fabric.
B. Minchew +4 more
semanticscholar +1 more source
Enhanced Firn Densification in High‐Accumulation Shear Margins of the NE Greenland Ice Stream
Journal of Geophysical Research: Earth Surface, 2019 Firn thickness across the NE Greenland Ice Stream is a function of accumulated strain, with thinner firn in the high‐strain margins of the ice stream. We present a novel technique for extracting firn density from previously collected seismic reflection ...
K. Riverman +7 more
semanticscholar +1 more source
Softening of Temperate Ice by Interstitial Water
Frontiers in Earth Science, 2021 Ice at depth in ice-stream shear margins is thought to commonly be temperate, with interstitial meltwater that softens ice. Models that include this softening extrapolate results of a single experimental study in which ice effective viscosity decreased ...
Conner J. C. Adams +4 more
doaj +1 more source
Englacial Pore Water Localizes Shear in Temperate Ice Stream Margins
Journal of Geophysical Research: Earth Surface, 2019 The margins of fast‐moving ice streams are characterized by steep velocity gradients. Some of these gradients cannot be explained by a temperature‐dependent viscosity alone.
M. Haseloff, Ian Hewitt, Richard F. Katz
semanticscholar +1 more source
The motion of ice stream margins [PDF]
Journal of Fluid Mechanics, 2013 AbstractThe recent article by Schoof (J. Fluid Mech., vol. 712, 2012, pp. 552–578) provides a technically demanding solution to the problem of determining ice-stream margin evolution. It is important in opening the way to the future theoretical description of how the ice sheets will melt and sea level will rise as the climate warms.
openaire +3 more sources
Meltwater generation in ice stream shear margins: case study in Antarctic ice streams
Proceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences, 2022 Liquid water within glacier ice and at the glacier beds exerts a significant control on ice flow and glacier stability through a number of processes, including altering the rheology of the ice and lubricating the bed. Some of this water is generated as melt in regions of rapid deformation, including shear margins, due to heating by viscous dissipation.
Meghana Ranganathan +3 more
openaire +2 more sources
Cell Membrane Vesicle Camouflaged Artificial Cells
Advanced Functional Materials, EarlyView.Artificial cells camouflaged with a cell membrane vesicle coating are able to assemble into synthetic aggregates that exhibit rudimentary communication capabilities. Additionally, when these artificial cells are equipped with antioxidant capabilities, they are able to protect the intracellular homeostasis in HepG2 cells present in semi‐synthetic ...
Paula De Dios Andres +11 more
wiley +1 more source
On the pulling power of ice streams [PDF]
Journal of Glaciology, 1992 AbstractGravity wants to pull an ice sheet to the center of the Earth, but cannot because the Earth’s crust is in the way, so ice is pushed out sideways instead. Or is it? The ice sheet “sees” nothing preventing it from spreading out except air, which is much less massive than ice. Therefore, does not ice rush forward to fill this relative vacuum; does
openaire +2 more sources
Iridium Oxide Inverse Opal Anodes with Tailored Porosity for Efficient PEM Electrolysis
Advanced Functional Materials, EarlyView.The synthesis of Iridium‐based Inverse Opals (Ir‐IO) is reported as electrocatalyst for Proton exchange membrane water electrolysis (PEM‐WE). Using the developed protocol it produces highly porous materials consisting either of metallic, oxidic Iridium or a combination thereof with large surface areas.
Sebastian Möhle +2 more
wiley +1 more source
Ice-stream response to ocean tides and the form of the basal sliding law [PDF]
The Cryosphere, 2011 The response of ice streams to ocean tides is investigated. Numerical modelling experiments are conducted using a two-dimensional flow-line model of coupled ice-stream and ice-shelf flow.
G. H. Gudmundsson
doaj +1 more source