Results 211 to 220 of about 197,109 (229)

On the propagation of discontinuities in a drifting ice cover

Journal of Applied Mathematics and Mechanics, 1992
A model of an ice cover with elastoplastic rheology is proposed. One- dimensional discontinuous solutions of the model equations are considered. The problem of the collision of two ice fields of different compactness and the problem of condensation of a drifting ice cover near a solid wall are solved.
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Stress measurements in drifting pack ice

Cold Regions Science and Technology, 1992
Abstract Accurate measurements of in-situ pack ice forces are necessary to improve ice forecasting models and to estimate loads on offshore structures. Two months of in-situ ice stress measurements were obtained in the pack ice of the eastern Arctic during the fall of 1988.
Donald K. Perovich, Walter B. Tucker
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Scientific Results of the Andrée-Expedition

Geografiska Annaler, 1931
(1931). Scientific Results of the Andree-Expedition. Geografiska Annaler: Vol. 13, No. 2-3, pp. 121-140.
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Equation of drift ice motion

2011
The law of conservation of momentum, or the equation of motion, is derived for drift ice from Newton's second law for a continuum in Section 5.1. By integrating through the thickness of ice, the two-dimensional equations can be obtained.
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Ice drift and momentum exchange in winter Antarctic pack ice

Journal of Geophysical Research: Oceans, 1990
This paper uses the Winter Weddell Sea Project 1986, winter Antarctic data set to (1) describe the nature of observed sea ice drift and momentum exchange and (2) determine relevant drag coefficients (linear and quadratic) and parameter values for three formulations of the momentum balance. The large‐scale mean divergence of the ice justifies, with some
Christian Wamser, Douglas G. Martinson
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Ice-Floe Wave Drift Experiments

Offshore Technology Conference, 1986
ABSTRACT Systematic laboratory measurements were performed to determine the steady drift of isolated, tabular ice-floe models in regular waves. A relatively simple expression for the steady wave-induced drift of two-dimensional floes of uniform thickness and density in deep water was developed.
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Hafisinn (The Drift Ice)

Arctic and Alpine Research, 1973
Markus A. Einarsson, Alayne Street
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Use and need for knowledge on ice drift

2011
The ice drift problem contains interesting basic research questions. It is a two- dimensional problem in the branch of mechanics called geophysical fluid dynamics. The medium is a compressible fluid, whose dynamic characteristics are its largely variable strength (low to very high), low inertia, and the irreversibility of mechanical deformation ...
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The East Antarctic sea ice zone: Ice characteristics and drift

GeoJournal, 1989
Results from studies of the surface energy balance and the ocean structure in the presence of fast ice near Mawson on the Antarctic coast are used to illustrate the important ways in which sea ice interacts with the ocean and atmosphere. Away from the coast, ship and drifting buoy observations are used to characterize the E Antarctic sea ice zone in a ...
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Panarctic drifting ice expedition [PDF]

Oceanology, 2007
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