Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1029/2019GL084162 |
Major Contribution of Reduced Upper Ocean Oxygen Mixing to Global Ocean Deoxygenation in an Earth System Model | |
Couespel, Damien1; Levy, Marina1; Bopp, Laurent2 | |
2019-11-13 | |
发表期刊 | GEOPHYSICAL RESEARCH LETTERS |
ISSN | 0094-8276 |
EISSN | 1944-8007 |
出版年 | 2019 |
卷号 | 46期号:21页码:12239-12249 |
文章类型 | Article |
语种 | 英语 |
国家 | France |
英文摘要 | We present a quantitative analysis of deoxygenation drivers applied to an Earth System Model and easily transposable to large model ensembles. The preindustrial ocean breathes in oxygen in polar regions and in subtropical gyres, and breathes out oxygen in the equatorial band and in subpolar gyres. Under a high-CO2 emission scenario for the 21st century, small deviations of these large natural oxygen fluxes cause global deoxygenation. We attribute half of this trend to a decrease in oxygen solubility. The other half is explained by negative trends in subduction and respiration, which largely cancel out each other. Moreover, 75% of the subduction decrease occurs through changes in mixing across the mixed-layer base. Our analysis also highlights strong modulations of subduction at the regional scale linked to shifts in wind patterns and associated Ekman pumping. |
英文关键词 | climate change ocean deoxygenation kinematic subduction diffusive subduction |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000496181200001 |
WOS关键词 | NORTH PACIFIC OXYGEN ; CLIMATE-CHANGE ; SOUTHERN-OCEAN ; MINIMUM ZONE ; MIXED-LAYER ; CMIP5 ; CARBON ; SIMULATIONS ; PROJECTIONS ; PATHWAYS |
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/225010 |
专题 | 环境与发展全球科技态势 |
作者单位 | 1.Sorbonne Univ, LOCEAN IPSL, CNRS IRD MNHN, Paris, France; 2.Sorbonne Univ, LMD IPSL, Ecole Normale Super, PSL Res Univ,CNRS,Ecole Polytech, Paris, France |
推荐引用方式 GB/T 7714 | Couespel, Damien,Levy, Marina,Bopp, Laurent. Major Contribution of Reduced Upper Ocean Oxygen Mixing to Global Ocean Deoxygenation in an Earth System Model[J]. GEOPHYSICAL RESEARCH LETTERS,2019,46(21):12239-12249. |
APA | Couespel, Damien,Levy, Marina,&Bopp, Laurent.(2019).Major Contribution of Reduced Upper Ocean Oxygen Mixing to Global Ocean Deoxygenation in an Earth System Model.GEOPHYSICAL RESEARCH LETTERS,46(21),12239-12249. |
MLA | Couespel, Damien,et al."Major Contribution of Reduced Upper Ocean Oxygen Mixing to Global Ocean Deoxygenation in an Earth System Model".GEOPHYSICAL RESEARCH LETTERS 46.21(2019):12239-12249. |
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