Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1002/2016GL072374 |
A model for tidewater glacier undercutting by submarine melting | |
Slater, D. A.1; Nienow, P. W.1; Goldberg, D. N.1; Cowton, T. R.2; Sole, A. J.3 | |
2017-03-16 | |
发表期刊 | GEOPHYSICAL RESEARCH LETTERS
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ISSN | 0094-8276 |
EISSN | 1944-8007 |
出版年 | 2017 |
卷号 | 44期号:5 |
文章类型 | Article |
语种 | 英语 |
国家 | Scotland; England |
英文摘要 | Dynamic change at the marine-terminating margins of the Greenland Ice Sheet may be initiated by the ocean, particularly where subglacial runoff drives vigorous ice-marginal plumes and rapid submarine melting. Here we model submarine melt-driven undercutting of tidewater glacier termini, simulating a process which is key to understanding ice-ocean coupling. Where runoff emerges from broad subglacial channels we find that undercutting has only a weak impact on local submarine melt rate but increases total ablation by submarine melting due to the larger submerged ice surface area. Thus, the impact of melting is determined not only by the melt rate magnitude but also by the slope of the ice-ocean interface. We suggest that the most severe undercutting occurs at the maximum height in the fjord reached by the plume, likely promoting calving of ice above. It remains unclear, however, whether undercutting proceeds sufficiently rapidly to influence calving at Greenland's fastest-flowing glaciers. |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000398183700036 |
WOS关键词 | WEST GREENLAND ; OUTLET GLACIERS ; ICE SHELF ; OCEAN ; DYNAMICS ; PLUMES ; CIRCULATION ; FJORD |
WOS类目 | Geosciences, Multidisciplinary |
WOS研究方向 | Geology |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/26295 |
专题 | 气候变化 |
作者单位 | 1.Univ Edinburgh, Sch Geosci, Edinburgh, Midlothian, Scotland; 2.Univ St Andrews, Sch Geog & Sustainable Dev, St Andrews, Fife, Scotland; 3.Univ Sheffield, Dept Geog, Sheffield, S Yorkshire, England |
推荐引用方式 GB/T 7714 | Slater, D. A.,Nienow, P. W.,Goldberg, D. N.,et al. A model for tidewater glacier undercutting by submarine melting[J]. GEOPHYSICAL RESEARCH LETTERS,2017,44(5). |
APA | Slater, D. A.,Nienow, P. W.,Goldberg, D. N.,Cowton, T. R.,&Sole, A. J..(2017).A model for tidewater glacier undercutting by submarine melting.GEOPHYSICAL RESEARCH LETTERS,44(5). |
MLA | Slater, D. A.,et al."A model for tidewater glacier undercutting by submarine melting".GEOPHYSICAL RESEARCH LETTERS 44.5(2017). |
条目包含的文件 | 条目无相关文件。 |
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