Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | DOI10.1088/1748-9326/abe9eb |
The world's largest coastal deoxygenation zone is not anthropogenically driven | |
G V M Gupta; R Jyothibabu; Ch V Ramu; A Yudhistir Reddy; K K Balachandran; V Sudheesh; Sanjeev Kumar; N V H K Chari; Kausar F Bepari; Prachi H Marathe; B Bikram Reddy; Anil Kumar Vijayan | |
2021-04-16 | |
发表期刊 | Environmental Research Letters
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出版年 | 2021/04/16 |
英文摘要 | The growing number of oxygen-deficient coastal zones around the world and their impacts on marine life has always been a controversial issue as their development is largely attributed to anthropogenic activities which can be mitigated by human actions. However, contrary to this prevailing understanding, we show here for the first time, using new coherent datasets from estuaries to coastal to offshore regions, that the world's largest hypoxic-anoxic zone along the west coast of India is formed through a natural process, i.e. upwelling of deoxygenated waters during the summer monsoon. We further demonstrate that the persistence and extent of this coastal oxygen deficiency depend on the degree of deoxygenation of source waters for the upwelling. Consequently, the anoxia is confined only to the central shelf between 11° and 18° N, which is equivalent to almost half of the western Indian shelf, where upwelling brings suboxic waters from the core oxygen minimum zone in the Arabian Sea. |
领域 | 气候变化 |
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/322773 |
专题 | 气候变化 |
推荐引用方式 GB/T 7714 | G V M Gupta,R Jyothibabu,Ch V Ramu,et al. The world's largest coastal deoxygenation zone is not anthropogenically driven[J]. Environmental Research Letters,2021. |
APA | G V M Gupta.,R Jyothibabu.,Ch V Ramu.,A Yudhistir Reddy.,K K Balachandran.,...&Anil Kumar Vijayan.(2021).The world's largest coastal deoxygenation zone is not anthropogenically driven.Environmental Research Letters. |
MLA | G V M Gupta,et al."The world's largest coastal deoxygenation zone is not anthropogenically driven".Environmental Research Letters (2021). |
条目包含的文件 | 条目无相关文件。 |
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