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Lubricated viscous gravity currents
(CUPJournal of Fluid Mechanics, 2015-02-10)
We present a theoretical and experimental study of viscous gravity currents lubricated by another viscous fluid from below. We use lubrication theory to model both layers as Newtonian fluids spreading under their own weight ...
Freeze fracturing of elastic porous media: a mathematical model
(Royal Society, 2015-02-11)
We present a mathematical model of the fracturing of water-saturated rocks and other porous materials in cold climates. Ice growing inside porous rocks causes large pressures to develop that can significantly damage the ...
Sea-ice thermodynamics and brine drainage
(Royal Society PublishingPhilosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences, 2015-07-13)
Significant changes in the state of the Arctic ice cover are occurring. As the summertime extent of sea ice diminishes, the Arctic is increasingly characterized by first-year rather than multi-year ice. It is during the ...
Assessment of ice flow dynamics in the zone close to the calving front of Antarctic ice shelves
(International Glaciological SocietyJournal of Glaciology, 2015-12-01)
We investigate the relationship between four ice-shelf characteristics in the area close to the calving front: ice flow speed, strain rate, ice thickness and shelf width. Data are compiled for these glaciological parameters ...