Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1002/2017GL074943 |
Regional Changes in Icescape Impact Shelf Circulation and Basal Melting | |
Cougnon, E. A.1,2; Galton-Fenzi, B. K.2,3; Rintoul, S. R.2,4,5; Legresy, B.2,4; Williams, G. D.1,2; Fraser, A. D.2; Hunter, J. R.2 | |
2017-11-28 | |
发表期刊 | GEOPHYSICAL RESEARCH LETTERS |
ISSN | 0094-8276 |
EISSN | 1944-8007 |
出版年 | 2017 |
卷号 | 44期号:22 |
文章类型 | Article |
语种 | 英语 |
国家 | Australia |
英文摘要 | Ice shelf basal melt is the dominant contribution to mass loss from Antarctic ice shelves. However, the sensitivity of basal melt to changes in icescape (grounded icebergs, ice shelves, and sea ice) and related ocean circulation is poorly understood. Here we simulate the impact of the major 2010 calving event of the Mertz Glacier Tongue (MGT), East Antarctica, and related redistribution of sea ice and icebergs on the basal melt rate of the local ice shelves. We find that the position of the grounded tabular iceberg B9B controls the water masses that reach the nearby ice shelf cavities. After the calving of the MGT and the removal of B9B, warmer water is present both within the MGT cavity and on the continental shelf driving a 57% increase of the deep MGT basal melting. Major changes in icescape influence the oceanic heat flux responsible for basal ice shelf melting. |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000419102300034 |
WOS关键词 | ANTARCTIC ICE SHELVES ; MERTZ GLACIER TONGUE ; EAST ANTARCTICA ; SEA-ICE ; GENERAL-CIRCULATION ; OCEAN ; WATER ; MODEL ; ADELIE ; VARIABILITY |
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/27180 |
专题 | 气候变化 |
作者单位 | 1.Univ Tasmania, Inst Marine & Antarctic Studies, Hobart, Tas, Australia; 2.Antarctic Climate & Ecosyst Cooperat Res Ctr, Hobart, Tas, Australia; 3.Australian Antarctic Div, Kingston, Tas, Australia; 4.Ocean & Atmosphere Commonwealth Sci & Ind Res Org, Hobart, Tas, Australia; 5.Ctr Southern Hemisphere Oceans Res, Hobart, Tas, Australia |
推荐引用方式 GB/T 7714 | Cougnon, E. A.,Galton-Fenzi, B. K.,Rintoul, S. R.,et al. Regional Changes in Icescape Impact Shelf Circulation and Basal Melting[J]. GEOPHYSICAL RESEARCH LETTERS,2017,44(22). |
APA | Cougnon, E. A..,Galton-Fenzi, B. K..,Rintoul, S. R..,Legresy, B..,Williams, G. D..,...&Hunter, J. R..(2017).Regional Changes in Icescape Impact Shelf Circulation and Basal Melting.GEOPHYSICAL RESEARCH LETTERS,44(22). |
MLA | Cougnon, E. A.,et al."Regional Changes in Icescape Impact Shelf Circulation and Basal Melting".GEOPHYSICAL RESEARCH LETTERS 44.22(2017). |
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