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Arctic Sea Ice Drift Measured by Shipboard Marine Radar
Journal of Geophysical Research: Oceans, 2018This study presents Arctic sea ice drift fields measured by shipboard marine X-band radar (MR). The measurements are based on the maximum cross correlation between two sequential MR backscatter images separated 1 min in time, a method that is commonly ...
Björn Lund +6 more
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Transition from eyeball to snowball driven by sea-ice drift on tidally locked terrestrial planets
Nature Astronomy, 2019Tidally locked terrestrial planets around low-mass stars are the prime targets for future atmospheric characterizations of potentially habitable systems 1 , especially the three nearby ones—Proxima b (ref. 2 ), TRAPPIST-1e (ref. 3 ) and LHS 1140b (ref. 4
Jun Yang, Weiwen Ji, Yaoxuan Zeng
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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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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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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 model of a drifting ice cover
Journal of Applied Mathematics and Mechanics, 1994Abstract Some theoretical ideas are developed concerning the dynamics of a drifting ice cover modelled by a four-phase two-dimensional continuous medium with elastic-plastic rheology under bulk and shearing deformations, including processes of hummocking and the formation of fractures [1].
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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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The equilibrium drift of Ice Station Alpha
Journal of Geophysical Research, 1962The problem of the equilibrium (unaccelerated) drift of an ice floe (no internal resistance) is solved by a treatment similar to Shuleikin's. Curves of drift angle, drift speed, and wind factor as functions of wind speed are computed for two different sets of parameters and compared with Shuleikin's curves for one of the sets.
Richard J. Reed, William J. Campbell
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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.
Susan Frankenstein, Nobuhisa Kobayashi
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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.
Susan Frankenstein, Nobuhisa Kobayashi
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Stress measurements in drifting pack ice
Cold Regions Science and Technology, 1992Abstract 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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