Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1029/2019GL085591 |
Evolution of Supraglacial Lakes on the Larsen B Ice Shelf in the Decades Before it Collapsed | |
Leeson, A. A.1,2; Forster, E.2; Rice, A.3; Gourmelen, N.4; van Wessem, J. M.5 | |
2020-02-28 | |
发表期刊 | GEOPHYSICAL RESEARCH LETTERS
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ISSN | 0094-8276 |
EISSN | 1944-8007 |
出版年 | 2020 |
卷号 | 47期号:4 |
文章类型 | Article |
语种 | 英语 |
国家 | England; Scotland; Netherlands |
英文摘要 | The Larsen B ice shelf collapsed in 2002 losing an area twice the size of Greater London to the sea (3,000 km(2)), in an event associated with widespread supraglacial lake drainage. Here we use optical and radar satellite imagery to investigate the evolution of the ice shelf's lakes in the decades preceding collapse. We find (1) that lakes spread southward in the preceding decades at a rate commensurate with meltwater saturation of the shelf surface; (2) no trend in lake size, suggesting an active supraglacial drainage network which evacuated excess water off the shelf; and (3) lakes mostly refreeze in winter but the few lakes that do drain are associated with ice breakup 2-4 years later. Given the relative scale of lake drainage and shelf breakup, however, it is not clear from our data whether lake drainage is more likely a cause, or an effect, of ice shelf collapse. |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000529120100023 |
WOS关键词 | DIGITAL ELEVATION MODEL ; ANTARCTIC PENINSULA ; BREAK-UP ; SURFACE ; CLIMATE ; DISINTEGRATION ; STABILITY ; MELTWATER ; DRAINAGE ; 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/279662 |
专题 | 气候变化 |
作者单位 | 1.Univ Lancaster, Data Sci Inst, Lancaster, England; 2.Univ Lancaster, Lancaster Environm Ctr, Lancaster, England; 3.Univ Lancaster, Sch Math & Stat, Lancaster, England; 4.Univ Edinburgh, Sch Geosci, Edinburgh, Midlothian, Scotland; 5.Univ Utrecht, IMAU, Utrecht, Netherlands |
推荐引用方式 GB/T 7714 | Leeson, A. A.,Forster, E.,Rice, A.,et al. Evolution of Supraglacial Lakes on the Larsen B Ice Shelf in the Decades Before it Collapsed[J]. GEOPHYSICAL RESEARCH LETTERS,2020,47(4). |
APA | Leeson, A. A.,Forster, E.,Rice, A.,Gourmelen, N.,&van Wessem, J. M..(2020).Evolution of Supraglacial Lakes on the Larsen B Ice Shelf in the Decades Before it Collapsed.GEOPHYSICAL RESEARCH LETTERS,47(4). |
MLA | Leeson, A. A.,et al."Evolution of Supraglacial Lakes on the Larsen B Ice Shelf in the Decades Before it Collapsed".GEOPHYSICAL RESEARCH LETTERS 47.4(2020). |
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