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DOI | 10.1038/s41561-019-0517-1 |
Density-compensated overturning in the Labrador Sea | |
Zou, Sijia1,4; Lozier, M. Susan1; Li, Feili1,5; Abernathey, Ryan2; Jackson, Laura3 | |
2020-01-13 | |
发表期刊 | NATURE GEOSCIENCE |
ISSN | 1752-0894 |
EISSN | 1752-0908 |
出版年 | 2020 |
卷号 | 13期号:2页码:121-+ |
文章类型 | Article |
语种 | 英语 |
国家 | USA; England |
英文摘要 | The Atlantic Meridional Overturning Circulation, a key constituent of the climate system, is projected to slow down in the twenty-first century due to a weakening of the Labrador Sea convection, itself a response to greenhouse gas warming and/or enhanced freshwater flux from the Arctic. However, the first observations from the Overturning in the Subpolar North Atlantic Program reveal a minimal response of the Meridional Overturning Circulation to the strong Labrador Sea convection during the winters of 2015-2016. From an analysis of the observational and reanalysis data, we show here that this weak response can be explained by a strong density compensation in the Labrador Sea. Although convection induces important changes of temperature and salinity in the basin interior, the export of the thermal and haline anomalies to the boundary current largely takes place along density surfaces. As a result, the transformation across density surfaces, that is, the imprint on the overturning circulation, is relatively small. This finding highlights the critical relationship between temperature and salinity in determining the overturning strength in the Labrador Sea and underlines the necessity of accurate freshwater flux estimates for improved Meridional Overturning Circulation predictions. |
领域 | 地球科学 ; 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000519214500007 |
WOS关键词 | DEEP-WATER FORMATION ; THERMOHALINE CIRCULATION ; BOUNDARY CURRENTS ; ATLANTIC ; HEAT ; VOLUME ; IMPACT ; MODEL ; CONVECTION |
WOS类目 | Geosciences, Multidisciplinary |
WOS研究方向 | Geology |
URL | 查看原文 |
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/249394 |
专题 | 地球科学 气候变化 |
作者单位 | 1.Duke Univ, Durham, NC 27708 USA; 2.Columbia Univ, Lamont Doherty Earth Observ, New York, NY USA; 3.Met Off, Exeter, Devon, England; 4.Woods Hole Oceanog Inst, Woods Hole, MA 02543 USA; 5.Georgia Inst Technol, Atlanta, GA 30332 USA |
推荐引用方式 GB/T 7714 | Zou, Sijia,Lozier, M. Susan,Li, Feili,et al. Density-compensated overturning in the Labrador Sea[J]. NATURE GEOSCIENCE,2020,13(2):121-+. |
APA | Zou, Sijia,Lozier, M. Susan,Li, Feili,Abernathey, Ryan,&Jackson, Laura.(2020).Density-compensated overturning in the Labrador Sea.NATURE GEOSCIENCE,13(2),121-+. |
MLA | Zou, Sijia,et al."Density-compensated overturning in the Labrador Sea".NATURE GEOSCIENCE 13.2(2020):121-+. |
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