Articles | Volume 17, issue 22
https://doi.org/10.5194/bg-17-5745-2020
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/bg-17-5745-2020
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
23 Nov 2020
Research article |
| 23 Nov 2020
| 23 Nov 2020
A numerical model study of the main factors contributing to hypoxia and its interannual and short-term variability in the East China Sea
Haiyan Zhang
Department of Oceanography, Dalhousie University, 1355 Oxford Street, Halifax B3H 4R2, Nova Scotia, Canada
School of Marine Science and Technology, Tianjin University, Tianjin, China
Department of Oceanography, Dalhousie University, 1355 Oxford Street, Halifax B3H 4R2, Nova Scotia, Canada
Arnaud Laurent
Department of Oceanography, Dalhousie University, 1355 Oxford Street, Halifax B3H 4R2, Nova Scotia, Canada
Changwei Bian
Physical Oceanography Laboratory/CIMST, Ocean University of China, 266100, Qingdao, China
Qingdao National Laboratory for Marine Science and Technology, 266100, Qingdao, China
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Short summary
In coastal seas, low oxygen, which is detrimental to coastal ecosystems, is increasingly caused by man-made nutrients from land. This is especially so near mouths of major rivers, including the Changjiang in the East China Sea. Here a simulation model is used to identify the main factors determining low-oxygen conditions in the region. High river discharge is identified as the prime cause, while wind and intrusions of open-ocean water modulate the severity and extent of low-oxygen conditions.
In coastal seas, low oxygen, which is detrimental to coastal ecosystems, is increasingly caused...
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