Articles | Volume 18, issue 20
https://doi.org/10.5194/bg-18-5831-2021
© Author(s) 2021. 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-18-5831-2021
© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
29 Oct 2021
Research article |
| 29 Oct 2021
| 29 Oct 2021
Fast local warming is the main driver of recent deoxygenation in the northern Arabian Sea
Zouhair Lachkar
CORRESPONDING AUTHOR
Center for Prototype Climate Modeling, New York University Abu Dhabi, Abu Dhabi, UAE
Michael Mehari
Center for Prototype Climate Modeling, New York University Abu Dhabi, Abu Dhabi, UAE
Muchamad Al Azhar
Center for Prototype Climate Modeling, New York University Abu Dhabi, Abu Dhabi, UAE
Plymouth Marine Laboratory, Plymouth, UK
Marina Lévy
Sorbonne Université (CNRS/IRD/MNHN), LOCEAN-IPSL, Paris, France
Shafer Smith
Center for Prototype Climate Modeling, New York University Abu Dhabi, Abu Dhabi, UAE
Courant Institute of Mathematical Sciences, New York University, New York, USA
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Short summary
This study documents and quantifies a significant recent oxygen decline in the upper layers of the Arabian Sea and explores its drivers. Using a modeling approach we show that the fast local warming of sea surface is the main factor causing this oxygen drop. Concomitant summer monsoon intensification contributes to this trend, although to a lesser extent. These changes exacerbate oxygen depletion in the subsurface, threatening marine habitats and altering the local biogeochemistry.
This study documents and quantifies a significant recent oxygen decline in the upper layers of...
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