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A series of tank experiments in non-freezing and freezing conditions was conducted to determine the development of Langmuir circulation (Lc) and to investigate how Lc may enhance the process of suspension freezing (incorporation of suspended sediment into newly formed ice). In non-freezing tank...
Crystal orientations in lake ice have been the subject of considerable attention due to their influence on albedo and stability during the melt season. It has been reported in the literature that ice sheets on freshwater bodies develop preferred crystal orientations. In some ice sheets c -axis...
This comment suggests that flow structures observed in the laboratory work of Dethleff et al., (Dethleff, D.E. Kempema, W., Koch, R. and Chubarenko, I., 2009. On the helical flow of Langmuir circulation — approaching the process of suspension freezing. Cold Regions Sci. and Tech., 56, 50–57.)...
Ridge keel punch through tests were simulated in 3D. In simulations unconsolidated ridge keel was modelled as a rubble pile of loose ice blocks. Combined finite–discrete element method (FEM–DEM) with rigid discrete elements representing ice blocks was used. Simulations were run in full scale....
Landscape modifications in Arctic and subarctic regions due to warming climate conditions have been reported in recent years. This work describes the rapid development of a thermokarst in Interior Alaska over a two-year period. The research was conducted in the Caribou-Poker Creeks Research...
Determining the specific surface area of snow from reflectance measurements in the near infrared domain represents a promising technique to rapidly and quantitatively acquire snow stratigraphic profiles in the field. In this paper, we develop a ray tracing model that simulates the albedo of...
This paper demonstrates the capabilities of ground penetrating radar (GPR) to map and resolve shallow subsurface features in the near-shore zone: (i) ice conditions (floating or bottom fast); (ii) water bathymetry; (iii) sedimentary structures; and (iv) interfaces between frozen and unfrozen...
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