Results 61 to 70 of about 464,025 (338)
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
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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
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The effect of human activities on moisture content of soils and underlying permafrost from the McMurdo Sound region, Antarctica [PDF]
, 1994 Soils and the underlying permafrost from undisturbed sites and sites that had been disturbed by construction activities at Marble Point and Pram Point in the McMurdo Sound region were sampled from excavated pits and drill cores. Gravimetric moisture (ice)
Balks, Megan R. +2 more
core +2 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
Introducing Pure Calcium Orthophosphate Gels and Aerogels
Advanced Functional Materials, EarlyView.The synthesis of calcium phosphate‐based gels and aerogels is reported, which exhibit highly porous structures built up of networks of nanoparticles. In case of amorphous aerogels, this leads to yet unmatched specific BET surface areas, making these materials especially interesting for biomedical applications.
Oliver Jeske +4 more
wiley +1 more source
Persistence and variability of ice-stream grounding lines on retrograde bed slopes [PDF]
The Cryosphere, 2016 In many ice streams, basal resistance varies in space and time due to the dynamically evolving properties of subglacial till. These variations can cause internally generated oscillations in ice-stream flow.
A. A. Robel, C. Schoof, E. Tziperman
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Dynamic behaviour of rutford ice stream [PDF]
Annals of Glaciology, 1982 The grounding-line region of Rutford Ice Stream was surveyed from the ground during 1978–79 and 1979–80, and from the air in 1980–81. Maps of surface elevation and ice thickness of an area of 1 000 km2allow the grounding line to be delineated and show that the ice stream consists of several distinct fingers of thick ice trending parallel to the flow ...
Stephenson, S.N, Doake, C.S.M
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Microneedle‐Based Biofertilizer Delivery Improves Plant Growth Through Microbiome Engineering
Advanced Functional Materials, EarlyView.This figure shows how microneedles are used to deliver biofertilizers to enhance plant growth through microbial migration, metabolic reprogramming, and changes in plant endogenous microbiome. Abstract This study presents a microneedle‐based system for the delivery of rhizospheric biofertilizers into plant tissues to enhance growth.
Zhicheng Le +14 more
wiley +1 more source
A Coupled Marine Ice-Stream – Ice-Shelf Model [PDF]
Journal of Glaciology, 1987 AbstractEvidence as to the potential roles of marine ice flows in the dramatic climatological changes which have occurred from the late Pleistocene to the present is reviewed, indicating the need for careful modeling studies to evaluate several crucial hypotheses.
Isabelle Muszynski, G. E. Birchfield
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Journal of GlaciologyThe ongoing deceleration of Whillans Ice Stream, West Antarctica, provides an opportunity to investigate the co-evolution of ice-shelf pinning points and ice-stream flux variability.
Hannah Verboncoeur +7 more
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