Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1029/2019GL084397 |
A Speed Limit on Ice Shelf Collapse Through Hydrofracture | |
Robel, Alexander A.1; Banwell, Alison F.2,3 | |
2019-11-05 | |
发表期刊 | GEOPHYSICAL RESEARCH LETTERS |
ISSN | 0094-8276 |
EISSN | 1944-8007 |
出版年 | 2019 |
文章类型 | Article;Early Access |
语种 | 英语 |
国家 | USA; England |
英文摘要 | Increasing surface melt has been implicated in the collapse of several Antarctic ice shelves over the last few decades, including the collapse of Larsen B Ice Shelf over a period of just a few weeks in 2002. The speed at which an ice shelf disintegrates strongly determines the subsequent loss of grounded ice and sea level rise, but the controls on collapse speed are not well understood. Here we show, using a novel cellular automaton model, that there is an intrinsic speed limit on ice shelf collapse through cascades of interacting melt pond hydrofracture events. Though collapse speed increases with the area of hydrofracture influence, the typical flexural length scales of Antarctic ice shelves ensure that hydrofracture interactions remain localized. We argue that the speed at which Larsen B Ice Shelf collapsed was caused by a season of anomalously high surface meltwater production. |
英文关键词 | ice shelf collapse instability criticality phase transition |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000494348900001 |
WOS关键词 | ANTARCTIC PENINSULA ; SEASONAL EVOLUTION ; SUPRAGLACIAL LAKES ; GLACIERS ; STABILITY ; MELTWATER ; FLEXURE ; STRESS ; DISINTEGRATION ; RETREAT |
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/188238 |
专题 | 气候变化 |
作者单位 | 1.Georgia Inst Technol, Sch Earth & Atmospher Sci, Atlanta, GA 30332 USA; 2.Univ Colorado, Cooperat Inst Res Environm Sci, Boulder, CO USA; 3.Univ Cambridge, Scott Polar Res Inst, Cambridge, England |
推荐引用方式 GB/T 7714 | Robel, Alexander A.,Banwell, Alison F.. A Speed Limit on Ice Shelf Collapse Through Hydrofracture[J]. GEOPHYSICAL RESEARCH LETTERS,2019. |
APA | Robel, Alexander A.,&Banwell, Alison F..(2019).A Speed Limit on Ice Shelf Collapse Through Hydrofracture.GEOPHYSICAL RESEARCH LETTERS. |
MLA | Robel, Alexander A.,et al."A Speed Limit on Ice Shelf Collapse Through Hydrofracture".GEOPHYSICAL RESEARCH LETTERS (2019). |
条目包含的文件 | 条目无相关文件。 |
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