Results 271 to 280 of about 1,034,359 (315)

Ice sheet margins and ice shelves

1984
The effect of climate warming on the size of ice sheet margins in polar regions is considered. Particular attention is given to the possibility of a rapid response to warming on the order of tens to hundreds of years. It is found that the early response of the polar regions to climate warming would be an increase in the area of summer melt on the ice ...
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On the resonant hydroelastic behaviour of ice shelves

Ocean Modelling, 2019
Rhythmic hydroelastic oscillations of ice shelves are a key mechanism believed to affect several phenomena observed in Polar Regions, such as the disintegration of ice shelves due to ocean wave impact or even the formation of localised distinctive ...
T. Papathanasiou, A. Karperaki, K. Belibassakis   +2 more
semanticscholar   +1 more source

Greenland Ice Shelves and Ice Tongues

2017
This chapter focuses on a review of the glaciers on north and northeast Greenland that terminate in fiords with long glacier tongues and floating, ice-shelf-like margins. There is some debate as to whether these glacier tongues can be classified as a traditional ice shelf, so the relevant literature and physical properties are reviewed.
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On meltwater under ice shelves

Journal of Geophysical Research: Oceans, 1995
The basic features of the flow of meltwater under ice shelves can be described by a set of simple relations and length scales. The flow may be divided into two regions, with different basic processes dominating in each. In the first region, melting of the underside of the ice shelf is important and the temperature and salinity of the current tend ...
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Asymptotic Theories of Ice Sheets and Ice Shelves

2007
In climate dynamics of the Globe the atmosphere, hydrosphere and cryosphere interplay with one another with various different time scales, typically from years to several millennia. Ice sheets and ice shelves, which are the grounded and floating components of the large ice masses such as Greenland and Antarctica and the former Fennoscandinavian and ...
D.R. Baral, K. Hutter
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Analytical Models of Ice Sheets and Ice Shelves

2020
Simple mathematical models for ice sheets and ice shelves are described which provide important insights into their dynamics. The models studied can be solved analytically to give equilibrium surface profiles and velocity distributions. Consideration is given to the feedback between surface elevation and mass balance.
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Arctic Ice Shelves: An Introduction

2017
Ice shelves are relatively thick ice masses that are afloat but attached to coastal land rather than adrift. They form by the seaward extension of glaciers or ice sheets or by build up of multiyear landfast sea ice. They thicken further by surface accumulation of snow and superimposed ice and by accretion of ice from water beneath.
Julian A. Dowdeswell, Martin O. Jeffries
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Interaction of Ice Shelves with the Ocean

2020
Ice shelves are the floating extensions of ice sheets into the ocean. Melting under ice shelves contributes to their mass balance and affects their geometry, with implications for ice-shelf evolution and integrity. This chapter examines the relevant ice-ocean interactions, focussing on mathematical descriptions of the plume dynamics that control the ...
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The health of Antarctic ice shelves

Nature Climate Change, 2017
The thinning of floating ice shelves around Antarctica enhances upstream ice flow, contributing to sea-level rise. Ice-shelf thinning is now shown to influence glacial movement over much larger distances than previously thought.
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How ice shelves melt

Science, 2014
Warming of the water that flows under Antarctic ice shelves is key to their melting [Also see Report by Schmidtko et al. ]
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