Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1002/2017GL072910 |
Continued retreat of Thwaites Glacier, West Antarctica, controlled by bed topography and ocean circulation | |
Seroussi, H.1; Nakayama, Y.1; Larour, E.1; Menemenlis, D.1; Morlighem, M.2; Rignot, E.1,2; Khazendar, A.1 | |
2017-06-28 | |
发表期刊 | GEOPHYSICAL RESEARCH LETTERS |
ISSN | 0094-8276 |
EISSN | 1944-8007 |
出版年 | 2017 |
卷号 | 44期号:12 |
文章类型 | Article |
语种 | 英语 |
国家 | USA |
英文摘要 | The Amundsen Sea sector is experiencing the largest mass loss, glacier acceleration, and grounding line retreat in Antarctica. Enhanced intrusion of Circumpolar Deep Water onto the continental shelf has been proposed as the primary forcing mechanism for the retreat. Here we investigate the dynamics and evolution of Thwaites Glacier with a novel, fully coupled, ice-ocean numerical model. We obtain a significantly improved agreement with the observed pattern of glacial retreat using the coupled model. Coupled simulations over the coming decades indicate a continued mass loss at a sustained rate. Uncoupled simulations using a depth-dependent parameterization of sub-ice-shelf melt significantly overestimate the rate of grounding line retreat compared to the coupled model, as the parameterization does not capture the complexity of the ocean circulation associated with the formation of confined cavities during the retreat. Bed topography controls the pattern of grounding line retreat, while oceanic thermal forcing impacts the rate of grounding line retreat. The importance of oceanic forcing increases with time as Thwaites grounding line retreats farther inland. |
英文关键词 | ice sheet dynamics ocean modeling Antarctica coupled model Amundsen Sea |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000405854200037 |
WOS关键词 | PINE ISLAND GLACIER ; AMUNDSEN SEA EMBAYMENT ; MARINE ICE-SHEET ; GROUNDING LINE RETREAT ; BASAL MELT RATES ; SHELF ; SENSITIVITY ; MODEL ; WIDESPREAD ; GREENLAND |
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/26904 |
专题 | 气候变化 |
作者单位 | 1.CALTECH, Jet Prop Lab, Pasadena, CA 91109 USA; 2.Univ Calif Irvine, Dept Earth Syst Sci, Irvine, CA USA |
推荐引用方式 GB/T 7714 | Seroussi, H.,Nakayama, Y.,Larour, E.,et al. Continued retreat of Thwaites Glacier, West Antarctica, controlled by bed topography and ocean circulation[J]. GEOPHYSICAL RESEARCH LETTERS,2017,44(12). |
APA | Seroussi, H..,Nakayama, Y..,Larour, E..,Menemenlis, D..,Morlighem, M..,...&Khazendar, A..(2017).Continued retreat of Thwaites Glacier, West Antarctica, controlled by bed topography and ocean circulation.GEOPHYSICAL RESEARCH LETTERS,44(12). |
MLA | Seroussi, H.,et al."Continued retreat of Thwaites Glacier, West Antarctica, controlled by bed topography and ocean circulation".GEOPHYSICAL RESEARCH LETTERS 44.12(2017). |
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