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DOI | 10.1002/2017GL075677 |
Circum-Antarctic Shoreward Heat Transport Derived From an Eddy- and Tide-Resolving Simulation | |
Stewart, Andrew L.1; Klocker, Andreas2,3,4; Menemenlis, Dimitris5 | |
2018-01-28 | |
发表期刊 | GEOPHYSICAL RESEARCH LETTERS |
ISSN | 0094-8276 |
EISSN | 1944-8007 |
出版年 | 2018 |
卷号 | 45期号:2页码:834-845 |
文章类型 | Article |
语种 | 英语 |
国家 | USA; Australia |
英文摘要 | Almost all heat reaching the bases of Antarctica's ice shelves originates from warm Circumpolar Deep Water in the open Southern Ocean. This study quantifies the roles of mean and transient flows in transporting heat across almost the entire Antarctic continental slope and shelf using an ocean/sea ice model run at eddy- and tide-resolving (1/48 degrees) horizontal resolution. Heat transfer by transient flows is approximately attributed to eddies and tides via a decomposition into time scales shorter than and longer than 1 day, respectively. It is shown that eddies transfer heat across the continental slope (ocean depths greater than 1,500 m), but tides produce a stronger shoreward heat flux across the shelf break (ocean depths between 500 m and 1,000 m). However, the tidal heat fluxes are approximately compensated by mean flows, leaving the eddy heat flux to balance the net shoreward heat transport. The eddy-driven cross-slope overturning circulation is too weak to account for the eddy heat flux. This suggests that isopycnal eddy stirring is the principal mechanism of shoreward heat transport around Antarctica, though likely modulated by tides and surface forcing. |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000425514300040 |
WOS关键词 | SOUTHERN WEDDELL SEA ; ICE-SHELF CAVITY ; WESTERN ROSS SEA ; CONTINENTAL-SHELF ; AMUNDSEN SEA ; DEEP-WATER ; OVERTURNING CIRCULATION ; RESIDUAL CIRCULATION ; OCEAN CIRCULATION ; SLOPE FRONT |
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/28307 |
专题 | 气候变化 |
作者单位 | 1.Univ Calif Los Angeles, Dept Atmospher & Ocean Sci, Los Angeles, CA 90095 USA; 2.Univ Tasmania, Inst Marine & Antarctic Studies, Hobart, Tas, Australia; 3.Univ Tasmania, Australian Res Council, Ctr Excellence Climate Syst Sci, Hobart, Tas, Australia; 4.Univ Tasmania, Antarctic Climate & Ecosyst Cooperat Res Ctr, Hobart, Tas, Australia; 5.CALTECH, Jet Prop Lab, Div Sci, Pasadena, CA USA |
推荐引用方式 GB/T 7714 | Stewart, Andrew L.,Klocker, Andreas,Menemenlis, Dimitris. Circum-Antarctic Shoreward Heat Transport Derived From an Eddy- and Tide-Resolving Simulation[J]. GEOPHYSICAL RESEARCH LETTERS,2018,45(2):834-845. |
APA | Stewart, Andrew L.,Klocker, Andreas,&Menemenlis, Dimitris.(2018).Circum-Antarctic Shoreward Heat Transport Derived From an Eddy- and Tide-Resolving Simulation.GEOPHYSICAL RESEARCH LETTERS,45(2),834-845. |
MLA | Stewart, Andrew L.,et al."Circum-Antarctic Shoreward Heat Transport Derived From an Eddy- and Tide-Resolving Simulation".GEOPHYSICAL RESEARCH LETTERS 45.2(2018):834-845. |
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