Results 251 to 260 of about 24,976 (288)
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2013
In this chapter, sea ice drift is discussed in terms of statistical properties of individual Lagrangian trajectories. It is first shown that the Arctic sea ice velocity field can be objectively decomposed into a mean field and fluctuations. The mean field shows intra-annual (between winter and summer) as well as some interannual variability.
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In this chapter, sea ice drift is discussed in terms of statistical properties of individual Lagrangian trajectories. It is first shown that the Arctic sea ice velocity field can be objectively decomposed into a mean field and fluctuations. The mean field shows intra-annual (between winter and summer) as well as some interannual variability.
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A new free drift sea ice velocity dataset for improved representations of ice drift trajectories
2020<p>Previous work shows that tracking the motion of sea ice in a Lagrangian framework can be used to produce skillful seasonal forecasts of sea ice at the pan-Arctic scale (Williams et al. 2016) and at the regional scale (Brunette et al.
Charles Brunette +2 more
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Polar Geography, 1977
Abstract The article discusses climatic characteristics in the drift‐ice zone, including circulation conditions, radiation regime, temperature and pressure fields, cloud micro‐structure and the climate of the free atmosphere. The significance of climatic studies in this region is emphasized in connection with plans for resource development and ...
A. F. Treshnikov, A. V. Voskresenskiy
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Abstract The article discusses climatic characteristics in the drift‐ice zone, including circulation conditions, radiation regime, temperature and pressure fields, cloud micro‐structure and the climate of the free atmosphere. The significance of climatic studies in this region is emphasized in connection with plans for resource development and ...
A. F. Treshnikov, A. V. Voskresenskiy
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Ice studies on drifting stations
Polar Geography, 1977Abstract Ice cover studies, affecting one of the basic elements of the Arctic environment, have played an important part of the research programs of the Soviet Union's North Pole drift‐ice stations. These research programs have included investigations of the heat exchange between atmosphere and ocean, predetermining the formation of ice cover with a ...
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Ice-Floe Wave Drift Experiments
Offshore Technology Conference, 1986ABSTRACT 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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Journal of Waterway, Port, Coastal, and Ocean Engineering, 1987
The mean wave drift force on a vertical axisymmetric ice floe in regular waves is computed using available computation methods for linear wave diffraction and radiation by a floating rigid body. The computed results for a fixed vertical cylinder are shown to be in good agreement with the corresponding analytical solution.
Nobuhisa Kobayashi, Susan Frankenstein
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The mean wave drift force on a vertical axisymmetric ice floe in regular waves is computed using available computation methods for linear wave diffraction and radiation by a floating rigid body. The computed results for a fixed vertical cylinder are shown to be in good agreement with the corresponding analytical solution.
Nobuhisa Kobayashi, Susan Frankenstein
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Ice Ages and the Drift of Continents
The Journal of Geology, 1924The theory of the "drift of continents" as proposed by the late Dr. Wegener was supposed to account readily for the Pleistocene and the Permo-Carboniferous ice ages, and this was considered one of the most important proofs of its validity. In the following paper it is shown that his theory fails completely in this respect, and it is considered that the
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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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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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