Results 41 to 50 of about 199,872 (251)

The future is Nye: an extension of the perfect plastic approximation to tidewater glaciers

Journal of Glaciology, 2016
Accurate modeling of calving glaciers relies on knowledge of many processes (ice flow, surface/submarine melting, calving, mélange interaction) and glacier-specific factors (air temperature, ocean circulation, precipitation rate, glacier geometry) that ...
LIZZ ULTEE, JEREMY BASSIS
doaj   +1 more source

A global semi-empirical glacial isostatic adjustment (GIA) model based on Gravity Recovery and Climate Experiment (GRACE) data [PDF]

Earth System Dynamics, 2020
The effect of glacial isostatic adjustment (GIA) on the shape and gravity of the Earth is usually described by numerical models that solve for both glacial evolution and Earth's rheology, being mainly constrained by the geological evidence of local ice ...
Y. Sun, R. E. M. Riva
doaj   +1 more source

Effects of microparticles on deformation and microstructural evolution of fine-grained ice

Journal of Glaciology, 2019
We investigated the effects of microparticles and grain size on the microstructural evolutions and mechanical properties of polycrystalline ice. Uniaxial compression tests were conducted using fine-grained pure ice and silica-dispersed ice under various ...
TOMOTAKA SARUYA, KOKI NAKAJIMA, MORIMASA TAKATA, TOMOYUKI HOMMA, NOBUHIKO AZUMA, KUMIKO GOTO-AZUMA   +5 more
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Towards a radiocarbon chronology of the Late-Glacial: Sample selection strategies [PDF]

, 2001
This paper outlines a dating program designed to test the reproducibility of radiocarbon dates on different materials of Late-Glacial age (plant macrofossils, fossil beetle remains, and the "humic" and "humin" chemical fractions of limnic sediments ...
Walker, M. J. C., Walker, M.J.C., Scott, E.M., Bryant, C., Harkness, D.D., Lowe, J. J., Lowe, J.J., Coope, G. R., Coope, G.R., Scott, E. M., Harkness, D. D.   +10 more
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Millennial climatic fluctuations are key to the structure of last glacial ecosystems [PDF]

, 2013
Whereas fossil evidence indicates extensive treeless vegetation and diverse grazing megafauna in Europe and northern Asia during the last glacial, experiments combining vegetation models and climate models have to-date simulated widespread persistence of
Huntley Brian, Stuart Anthony J., Thomas Hickler, Paul J Valdes, Singarayer Joy, Joy Singarayer, Valdes Paul J., Hickler, Thomas, Sykes, Martin, Sykes, Martin T., Yvonne C Collingham, Stuart, Antony J., Allen Judy R. M., Lister Adrian M., Hickler Thomas, Huntley, Brian, Sykes Martin T., Allen, Judy R. M., Singarayer, Joy, Collingham Yvonne C., Allen, Judy R.M., Brian Huntley, Stuart, Anthony J., Sykes, Martin,, Valdes, Paul J., Lister, Adrian M., Judy R M Allen, Adrian M Lister, Martin T Sykes, Anthony J Stuart, Collingham, Yvonne C., Lund University., Allen, Judy R M   +32 more
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Data-driven bed rheology enhances retreat on Thwaites Glacier

Journal of Glaciology
Field data suggest that Thwaites Glacier’s bed is composed of alternating areas of hard and soft material with correlated topographic variations. Prior modeling shows that forced response differs strongly for simulations on endmember beds, suggesting ...
Emily Schwans, Byron Parizek, Richard B. Alley, Sridhar Anandakrishnan, Shujie Wang   +4 more
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Glacially striated, soft sediment surfaces on late Paleozoic tillite at São Luiz do Purunã, PR

Anais da Academia Brasileira de Ciências, 2005
Striae and furrows found on the upper surfaces of three stratigraphically superposed decimetric beds of late Paleozoic lodgement tillite of the Itararé Subgroup in the northern Paraná Basin were engraved by ploughing of clasts and possibly also ice ...
Ivo Trosdtorf Jr., Mario L. Assine, Fernando F. Vesely, Antonio C. Rocha-Campos, Paulo R. dos Santos, Alexandre Tomio   +5 more
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Rheology

, 2012
This book contains a wealth of useful information on current rheology research. By covering a broad variety of rheology-related topics, this e-book is addressed to a wide spectrum of academic and applied researchers and scientists but it could also prove

core   +1 more source

Abrupt changes in deep Atlantic circulation during the transition to full glacial conditions [PDF]

, 2013
Six Ocean Drilling Program (ODP) sites, in the Northwest Atlantic have been used to investigate kinematic and chemical changes in the ‘Western Boundary Undercurrent’ (WBUC) during the development of full glacial conditions across the Marine Isotope Stage
Becker, J, Hall, I. R., Becker, J., Thornalley, David J. R., Barker, S., Hall, Ian Robert, Barker, Stephen, Barker, S, Knorr, G, Thornalley, D., Becker, Julia, Hall, IR, Knorr, Gregor, Thornalley, DJR, Hall, Ian R.   +14 more
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An Integrated Oxygen‐Supplying Device and Predictive Multiphysics Model for Extended Ambient Transport of Insulin‐Producing Cells

Advanced Functional Materials, EarlyView.
Cell therapies typically rely on cold‐chain logistics and cryopreservation, limiting access and compromising cell quality. Here, a dual‐chamber device separates an oxygen‐supplying chamber from a hyaluronic acid cargo chamber, sustaining oxygen delivery for over 70 h and enabling ambient‐temperature shipment.
Daniel A. Domingo‐Lopez, Ruth Tarpey, Benjamin Brennan, Bryan D. Boyle, Amir M. Alsharabasy, Abhik Mallick, Gabriella Bellavia, Abhay Pandit, Garry P. Duffy, Ruth E. Levey   +9 more
wiley   +1 more source