Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1002/2017GL076195 |
Change in Dense Shelf Water and Adelie Land Bottom Water Precipitated by Iceberg Calving | |
Snow, K.1,2,3; Rintoul, S. R.4,5,6; Sloyan, B. M.4,6; Hogg, A. McC.2,3 | |
2018-03-16 | |
发表期刊 | GEOPHYSICAL RESEARCH LETTERS
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ISSN | 0094-8276 |
EISSN | 1944-8007 |
出版年 | 2018 |
卷号 | 45期号:5页码:2380-2387 |
文章类型 | Article |
语种 | 英语 |
国家 | Scotland; Australia |
英文摘要 | Antarctic Bottom Water supplies the deep limb of the global overturning circulation and ventilates the abyssal ocean. Antarctic Bottom Water has warmed, freshened, and contracted in recent decades, but the causes remain poorly understood. We use unique multiyear observations from the continental shelf and deep ocean near the Mertz Polynya to examine the sensitivity of this bottom water formation region to changes on the continental shelf, including the calving of a large iceberg. Postcalving, the seasonal cycle of Dense Shelf Water (DSW) density almost halved in amplitude and the volume of DSW available for export reduced. In the deep ocean, the density and volume of Adelie Land Bottom Water decreased sharply after calving, while oxygen concentrations remained high, indicating continued ventilation by DSW. This natural experiment illustrates how local changes in forcing over the Antarctic continental shelf can drive large and rapid changes in the abyssal ocean. |
英文关键词 | Antarctic Bottom Water iceberg calving Dense Shelf Water polynya surface forcing |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000428402400030 |
WOS关键词 | AUSTRALIAN-ANTARCTIC BASIN ; SEA-LEVEL RISE ; EAST ANTARCTICA ; INDIAN-OCEAN ; GLOBAL HEAT ; V LAND ; DEEP ; PACIFIC ; ABYSSAL ; BUDGETS |
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/25681 |
专题 | 气候变化 |
作者单位 | 1.Univ Edinburgh, Sch Geosci, Edinburgh, Midlothian, Scotland; 2.Australian Natl Univ, ARC Ctr Excellence Climate Syst Sci, Canberra, ACT, Australia; 3.Australian Natl Univ, Res Sch Earth Sci, Canberra, ACT, Australia; 4.CSIRO, Oceans & Atmosphere, Hobart, Tas, Australia; 5.Univ Tasmania, Antarctic Climate & Ecosyst Cooperat Res Ctr, Hobart, Tas, Australia; 6.Ctr Southern Hemisphere Oceans Res, Hobart, Tas, Australia |
推荐引用方式 GB/T 7714 | Snow, K.,Rintoul, S. R.,Sloyan, B. M.,et al. Change in Dense Shelf Water and Adelie Land Bottom Water Precipitated by Iceberg Calving[J]. GEOPHYSICAL RESEARCH LETTERS,2018,45(5):2380-2387. |
APA | Snow, K.,Rintoul, S. R.,Sloyan, B. M.,&Hogg, A. McC..(2018).Change in Dense Shelf Water and Adelie Land Bottom Water Precipitated by Iceberg Calving.GEOPHYSICAL RESEARCH LETTERS,45(5),2380-2387. |
MLA | Snow, K.,et al."Change in Dense Shelf Water and Adelie Land Bottom Water Precipitated by Iceberg Calving".GEOPHYSICAL RESEARCH LETTERS 45.5(2018):2380-2387. |
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