Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1088/1748-9326/aa5b04 |
Mass budget of the glaciers and ice caps of the Queen Elizabeth Islands, Canada, from 1991 to 2015 | |
Millan, Romain1; Mouginot, Jeremie1; Rignot, Eric1,2 | |
2017-02-01 | |
发表期刊 | ENVIRONMENTAL RESEARCH LETTERS |
ISSN | 1748-9326 |
出版年 | 2017 |
卷号 | 12期号:2 |
文章类型 | Article |
语种 | 英语 |
国家 | USA |
英文摘要 | Recent studies indicate that the glaciers and ice caps in Queen Elizabeth Islands (QEI), Canada have experienced an increase in ice mass loss during the last two decades, but the contribution of ice dynamics to this loss is not well known. We present a comprehensive mapping of ice velocity using a suite of satellite data from year 1991 to 2015, combined with ice thickness data from NASA Operation IceBridge, to calculate ice discharge. We find that ice discharge increased significantly after 2011 in Prince of Wales Icefield, maintained or decreased in other sectors, whereas glacier surges have little impact on long-term trends in ice discharge. During 1991-2005, the QEI mass loss averaged 6.3 +/- 1.1 Gt yr(-1), 52% from ice discharge and the rest from surface mass balance (SMB). During 2005-2014, the mass loss from ice discharge averaged 3.5 +/- 0.2 Gt yr(-1) (10%) versus 29.6 +/- 3.0 Gt yr(-1) (90%) from SMB. SMB processes therefore dominate the QEI mass balance, with ice dynamics playing a significant role only in a few basins. |
英文关键词 | cryosphere ice discharge surface mass balance remote sensing mass budget |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000410375400001 |
WOS关键词 | DYNAMICS ; NUNAVUT ; ALASKA ; VELOCITIES ; DISCHARGE ; GREENLAND ; MOTION ; SURGE ; FLOW |
WOS类目 | Environmental Sciences ; Meteorology & Atmospheric Sciences |
WOS研究方向 | Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences |
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/34264 |
专题 | 气候变化 |
作者单位 | 1.Univ Calif Irvine, Dept Earth Syst Sci, Irvine, CA 92697 USA; 2.CALTECH, Jet Prop Lab, Pasadena, CA USA |
推荐引用方式 GB/T 7714 | Millan, Romain,Mouginot, Jeremie,Rignot, Eric. Mass budget of the glaciers and ice caps of the Queen Elizabeth Islands, Canada, from 1991 to 2015[J]. ENVIRONMENTAL RESEARCH LETTERS,2017,12(2). |
APA | Millan, Romain,Mouginot, Jeremie,&Rignot, Eric.(2017).Mass budget of the glaciers and ice caps of the Queen Elizabeth Islands, Canada, from 1991 to 2015.ENVIRONMENTAL RESEARCH LETTERS,12(2). |
MLA | Millan, Romain,et al."Mass budget of the glaciers and ice caps of the Queen Elizabeth Islands, Canada, from 1991 to 2015".ENVIRONMENTAL RESEARCH LETTERS 12.2(2017). |
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