Results 11 to 20 of about 544,035 (290)

Rheology of an Ice-Floe Field [PDF]

open access: yesAnnals of Glaciology, 1984
The aim of the paper is (1) to develop theory to describe sea ice as a collection of finite-sized floes and (2) to construct a rheology based on this description.Successful sea-ice models have considered the ice to be a two-dimensional continuum with a ...
Iain Bratchie
core   +3 more sources

Ice bridges and ridges in the Maxwell-EB sea ice rheology [PDF]

open access: yesThe Cryosphere, 2017
This paper presents a first implementation of a new rheological model for sea ice on geophysical scales. This continuum model, called Maxwell elasto-brittle (Maxwell-EB), is based on a Maxwell constitutive law, a progressive damage mechanism that is ...
V. Dansereau   +4 more
doaj   +5 more sources

Semi-brittle rheology and ice dynamics in DynEarthSol3D [PDF]

open access: yesThe Cryosphere, 2017
We present a semi-brittle rheology and explore its potential for simulating glacier and ice sheet deformation using a numerical model, DynEarthSol3D (DES), in simple, idealized experiments.
L. C. Logan   +4 more
doaj   +5 more sources

Volcano-ice interactions at Prestahnukur, Iceland : rhyolite eruption during the last interglacial-glacial transition. [PDF]

open access: yes, 2006
Prestahnukur is a 570m high rhyolite glaciovolcanic edifice in Iceland's Western Rift Zone with a volume of 0.6 km3. Uniform whole rock, mineral and glass compositions suggest that Prestahnukur was constructed during the eruption of one magma batch.
Tindle, A.G.   +21 more
core   +5 more sources

The finite-volume method in computational rheology [PDF]

open access: yes, 2012
The finite volume method (FVM) is widely used in traditional computational fluid dynamics (CFD), and many commercial CFD codes are based on this technique which is typically less demanding in computational resources than finite element methods (FEM ...
Pinho, F.T.   +4 more
core   +4 more sources

Rheology of planetary ices [PDF]

open access: yes, 1996
The brittle and ductile rheology of ices of water, ammonia, methane, and other volatiles, in combination with rock particles and each other, have a primary influence of the evolution and ongoing tectonics of icy moons of the outer solar system. Laboratory experiments help constrain the rheology of solar system ices. Standard experimental techniques can
Durham, W.B., Kirby, S.H., Stern, L.A.
openaire   +2 more sources

Comparison of sea ice kinematics at different resolutions modeled with a grid hierarchy in the Community Earth System Model (version 1.2.1) [PDF]

open access: yesGeoscientific Model Development, 2021
High-resolution sea ice modeling is becoming widely available for both operational forecasts and climate studies. In traditional Eulerian grid-based models, small-scale sea ice kinematics represent the most prominent feature of high-resolution ...
S. Xu   +7 more
doaj   +1 more source

Processes controlling the downstream evolution of ice rheology in glacier shear margins: case study on Rutford Ice Stream, West Antarctica

open access: yesJournal 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.
BRENT M. MINCHEW   +4 more
doaj   +1 more source

Pressure drop of flowing ice slurries in industrial heat exchangers [PDF]

open access: yes, 2009
Experiments were conducted to determine the characteristics of ice flows through industrial heat exchangers (a Tetra Plex (R) C6-SR and a Tetra Spiraflo (R) MTC70/W-3).
Quarini, G.L.   +8 more
core   +1 more source

RHEOLOGY OF GLACIER ICE

open access: yesLe Journal de Physique Colloques, 1985
A new method for calculating the stress field in bounded ice shelves is used to compare strain rate and deviatoric stress on the Ross Ice Shelf, Antarctica. The analysis shows that strain rate (per second) increases as the third power of deviatoric stress (in newtons per square meter), with a constant of proportionality equal to 2.3 x 10
Jezek, K., Alley, R., Thomas, R.
openaire   +3 more sources

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