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DOI | 10.1002/2017GL075157 |
Oxygen Minimum Zone Contrasts Between the Arabian Sea and the Bay of Bengal Implied by Differences in Remineralization Depth | |
Al Azhar, Muchamad1; Lachkar, Zouhair1; Levy, Marina2; Smith, Shafer1,3 | |
2017-11-16 | |
发表期刊 | GEOPHYSICAL RESEARCH LETTERS |
ISSN | 0094-8276 |
EISSN | 1944-8007 |
出版年 | 2017 |
卷号 | 44期号:21 |
文章类型 | Article |
语种 | 英语 |
国家 | U Arab Emirates; France; USA |
英文摘要 | The combination of high primary productivity and weak ventilation in the Arabian Sea (AS) and Bay of Bengal (BoB) generates vast areas of depleted oxygen, known as oxygen minimum zones (OMZs). The AS OMZ is the world's thickest and hosts up to 40% of global denitrification. In contrast, the OMZ in the BoB is weaker and denitrification free. Using a series of model simulations, we show that the deeper remineralization depth (RD) in the BoB, potentially associated with organic matter aggregation with riverine mineral particles, contributes to weaken its OMZ. When the RD is set uniformly across both seas, the model fails to reproduce the observed contrast between the two OMZs, irrespective of the chosen RD. In contrast, when the RD is allowed to vary spatially, the contrasting distributions of oxygen and nitrate are correctly reproduced, and water column denitrification is simulated exclusively in the AS, in agreement with observations. |
英文关键词 | oxygen minimum zones remineralization depth the Arabian Sea the Bay of Bengal denitrification biogeochemical cycles |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000418572900036 |
WOS关键词 | PARTICLE FLUXES ; WATER-COLUMN ; INTERANNUAL VARIABILITY ; RESPIRATION RATES ; BALLAST MINERALS ; ORGANIC-MATTER ; FRESH-WATER ; CARBON ; OCEAN ; SYSTEM |
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/26262 |
专题 | 气候变化 |
作者单位 | 1.New York Univ Abu Dhabi, Ctr Prototype Climate Modeling, Abu Dhabi, U Arab Emirates; 2.UPMC Paris 6, Sorbonne Univ, CNRS, IRD,MNHN,LOCEAN IPSL, Paris, France; 3.NYU, Courant Inst Math Sci, New York, NY USA |
推荐引用方式 GB/T 7714 | Al Azhar, Muchamad,Lachkar, Zouhair,Levy, Marina,et al. Oxygen Minimum Zone Contrasts Between the Arabian Sea and the Bay of Bengal Implied by Differences in Remineralization Depth[J]. GEOPHYSICAL RESEARCH LETTERS,2017,44(21). |
APA | Al Azhar, Muchamad,Lachkar, Zouhair,Levy, Marina,&Smith, Shafer.(2017).Oxygen Minimum Zone Contrasts Between the Arabian Sea and the Bay of Bengal Implied by Differences in Remineralization Depth.GEOPHYSICAL RESEARCH LETTERS,44(21). |
MLA | Al Azhar, Muchamad,et al."Oxygen Minimum Zone Contrasts Between the Arabian Sea and the Bay of Bengal Implied by Differences in Remineralization Depth".GEOPHYSICAL RESEARCH LETTERS 44.21(2017). |
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