Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1029/2018GL078024 |
Ocean-Induced Melt Triggers Glacier Retreat in Northwest Greenland | |
Wood, M.1; Rignot, E.1; Fenty, I.2; Menemenlis, D.2; Millan, R.1; Morlighem, M.1; Mouginot, J.1,3; Seroussi, H.2 | |
2018-08-28 | |
发表期刊 | GEOPHYSICAL RESEARCH LETTERS |
ISSN | 0094-8276 |
EISSN | 1944-8007 |
出版年 | 2018 |
卷号 | 45期号:16页码:8334-8342 |
文章类型 | Article |
语种 | 英语 |
国家 | USA; France |
英文摘要 | In recent decades, tidewater glaciers in Northwest Greenland contributed significantly to sea level rise but exhibited a complex spatial pattern of retreat. Here we use novel observations of bathymetry and water temperature from NASA's Ocean Melting Greenland mission to quantify the role of warm, salty Atlantic Water in controlling the evolution of 37 glaciers. Modeled ocean-induced undercutting of calving margins compared with ice advection and ice front retreat observed by satellites from 1985 to 2015 indicate that 35 glaciers retreated when cumulative anomalies in ocean-induced undercutting rose above the range of seasonal variability of calving-front positions, while two glaciers standing on shallow sills and colder water did not retreat. Deviations in the observed timing of retreat are explained by residual uncertainties in bathymetry, inefficient mixing of waters in shallow fjords, and the presence of small floating sections. Overall, warmer ocean temperature triggered the retreat, but calving processes dominate ablation (71%). |
英文关键词 | ice fronts Greenland ice sheet ice-ocean interactions ice front undercutting glacier retreat ocean warming |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000445612500051 |
WOS关键词 | MARINE-TERMINATING GLACIERS ; ICE-SHEET ; WEST GREENLAND ; SUBGLACIAL DISCHARGE ; TIDEWATER GLACIERS ; MASS-LOSS ; SOUTHEAST GREENLAND ; TERMINUS POSITION ; SURFACE ELEVATION ; OUTLET GLACIERS |
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/26029 |
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; 3.Univ Grenoble Alpes, CNRS, IRD, Grenoble INP,IGE, Grenoble, France |
推荐引用方式 GB/T 7714 | Wood, M.,Rignot, E.,Fenty, I.,et al. Ocean-Induced Melt Triggers Glacier Retreat in Northwest Greenland[J]. GEOPHYSICAL RESEARCH LETTERS,2018,45(16):8334-8342. |
APA | Wood, M..,Rignot, E..,Fenty, I..,Menemenlis, D..,Millan, R..,...&Seroussi, H..(2018).Ocean-Induced Melt Triggers Glacier Retreat in Northwest Greenland.GEOPHYSICAL RESEARCH LETTERS,45(16),8334-8342. |
MLA | Wood, M.,et al."Ocean-Induced Melt Triggers Glacier Retreat in Northwest Greenland".GEOPHYSICAL RESEARCH LETTERS 45.16(2018):8334-8342. |
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