Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1029/2018GL080284 |
Dissolved Organic Nitrogen Production and Export by Meridional Overturning in the Eastern Subpolar North Atlantic | |
Fernandez-Castro, Bieito1,2; Alvarez, Marta3; Nieto-Cid, Mar3; Zunino, Patricia4; Mercier, Herle4; Anton Alvarez-Salgado, Xose1 | |
2019-04-16 | |
发表期刊 | GEOPHYSICAL RESEARCH LETTERS |
ISSN | 0094-8276 |
EISSN | 1944-8007 |
出版年 | 2019 |
卷号 | 46期号:7页码:3832-3842 |
文章类型 | Article |
语种 | 英语 |
国家 | Spain; Switzerland; France |
英文摘要 | Dissolved organic matter (DOM) is produced in the surface and exported towards the deep ocean, adding similar to 2 PgC/year to the global carbon export. Due to its central role in the Meridional Overturning Circulation, the eastern subpolar North Atlantic (eSPNA) contributes largely to this export. Here we quantify the transport and budget of dissolved organic nitrogen (DON) in the eSPNA, in a box delimited by the OVIDE 2002 section and the Greenland-Iceland-Scotland sills. The Meridional Overturning Circulation exports > 15.9 TgN/year of DON downward and, contrary to the extended view that these are materials of subtropical origin, up to 33% of the vertical flux derives from a net local DON production of 7.1 +/- 2.6 TgN/year. The low C:N molar ratio of DOM production (7.4 +/- 4.1) and the relatively short transit times in the eSPNA (3 +/- 1 year) suggest that local biogeochemical transformations result in the injection of fresh bioavailable DOM to the deep ocean. |
英文关键词 | dissolved organic matter nitrogen cycle meridional overturning circulation subpolar North Atlantic metabolic balance |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000465836200028 |
WOS关键词 | LABRADOR SEA-WATER ; DENMARK STRAIT ; IRMINGER SEA ; CARBON ; OCEAN ; NUTRIENTS ; TRANSPORT ; MATTER ; FLUX ; REMINERALIZATION |
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/182376 |
专题 | 气候变化 |
作者单位 | 1.CSIC, IIM, Dept Oceanog, Vigo, Spain; 2.Ecole Polytech Fed Lausanne, Phys Aquat Syst Lab, Margaretha Kamprad Chair, Inst Environm Engn, Lausanne, Switzerland; 3.Ctr Oceanog A Coruna, Inst Espanol Oceanog, La Coruna, Spain; 4.UMR 6523 CNRS Ifremer IRD UBO, Ifremer Ctr Bretagne, Lab Oceanog Phys & Spatiale, Plouzane, France |
推荐引用方式 GB/T 7714 | Fernandez-Castro, Bieito,Alvarez, Marta,Nieto-Cid, Mar,et al. Dissolved Organic Nitrogen Production and Export by Meridional Overturning in the Eastern Subpolar North Atlantic[J]. GEOPHYSICAL RESEARCH LETTERS,2019,46(7):3832-3842. |
APA | Fernandez-Castro, Bieito,Alvarez, Marta,Nieto-Cid, Mar,Zunino, Patricia,Mercier, Herle,&Anton Alvarez-Salgado, Xose.(2019).Dissolved Organic Nitrogen Production and Export by Meridional Overturning in the Eastern Subpolar North Atlantic.GEOPHYSICAL RESEARCH LETTERS,46(7),3832-3842. |
MLA | Fernandez-Castro, Bieito,et al."Dissolved Organic Nitrogen Production and Export by Meridional Overturning in the Eastern Subpolar North Atlantic".GEOPHYSICAL RESEARCH LETTERS 46.7(2019):3832-3842. |
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