Grounding line transient response in marine ice sheet models
نویسندگان
چکیده
منابع مشابه
Grounding line migration in an adaptive mesh ice sheet model
Grounding line migration is a key process affecting the stability of marine ice sheets such as the West Antarctic ice sheet. Recent studies have shown that ice sheet models employing a fixed spatial grid (such as are commonly used for whole ice sheet simulations) cannot be used to solve this problem in a robust manner. We have developed a one-dimensional (vertically integrated) “shelfy stream” ...
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[1] The ice sheet–ice shelf transition zone plays an important role in controlling marine ice sheet dynamics, as it determines the rate at which ice flows out of the grounded part of the ice sheet. Together with accumulation, this outflow is the main control on the mass balance of the grounded sheet. In this paper, we verify the results of a boundary layer theory for ice flux in the transition ...
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Grounding line migration is a key process affecting the stability of marine ice sheets such as the West Antarctic ice sheet (WAIS). Grounding line motion is often included in numerical models simulating the past and future evolution of the WAIS; however, little attention has been paid to the numerical consistency of these models. The aim of this paper is to assess the ability of simple versions...
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This paper describes the research plan to use ALOS / PALSAR data for Antarctic ice sheet analysis. The final goal of our study is to extract the precise ice sheet elevation and estimate accurate position of grounding line using ALOS / PALSAR data. The authors have been studying the grounding line and ice sheet topography from InSAR data, which mainly used ERS-1/2 tandem data. We plan to adopt t...
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As continental ice from Antarctica reaches the grounding line and begins to float, its underside melts into the ocean. Results obtained with satellite radar interferometry reveal that bottom melt rates experienced by large outlet glaciers near their grounding lines are far higher than generally assumed. The melting rate is positively correlated with thermal forcing, increasing by 1 meter per ye...
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ژورنال
عنوان ژورنال: The Cryosphere
سال: 2013
ISSN: 1994-0424
DOI: 10.5194/tc-7-395-2013