Earth System Science Data
Earth System Science Data
Earth System Science Data
Articles | Volume 16, issue 11
Articles | Volume 16, issue 11
https://doi.org/10.5194/essd-16-5191-2024
© Author(s) 2024. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/essd-16-5191-2024
© Author(s) 2024. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 16, issue 11
Data description paper
 | 
11 Nov 2024
Data description paper |  | 11 Nov 2024

ISASO2: recent trends and regional patterns of ocean dissolved oxygen change

Nicolas Kolodziejczyk, Esther Portela, Virginie Thierry, and Annaig Prigent

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Latest update: 14 Sep 2025
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Short summary
Oceanic dissolved oxygen (DO) is fundamental for ocean biogeochemical cycles and marine life. To ease the computation of the ocean oxygen budget from in situ DO data, mapping of data on a regular 3D grid is useful. Here, we present a new DO gridded product from the Argo database. We compare it with existing DO mapping from a historical dataset. We suggest that the ocean has generally been losing oxygen since the 1980s, but large interannual and regional variabilities should be considered.
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