Articles | Volume 16, issue 11
https://doi.org/10.5194/essd-16-5191-2024
https://doi.org/10.5194/essd-16-5191-2024
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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Cited articles

Argo: Argo float data and metadata from Global Data Assembly Centre (Argo GDAC), SEANOE [data set], https://doi.org/10.17882/42182, 2000. 
Atkins, J., Andrews, O., and Frenger, I.: Quantifying the Contribution of Ocean Mesoscale Eddies to Low Oxygen Extreme Events, Geophys. Res. Lett., 49, e2022GL098672, https://doi.org/10.1029/2022GL098672, 2022. 
Barnes, S. L.: A Technique for Maximizing Details in Numerical Weather Map Analysis, J. Appl. Meteorol. Clim., 3, 396–409, https://doi.org/10.1175/1520-0450(1964)003<0396:ATFMDI>2.0.CO;2, 1964. 
Billheimer, S. J., Talley, L. D., and Martz, T. R.: Oxygen Seasonality, Utilization Rate, and Impacts of Vertical Mixing in the Eighteen Degree Water Region of the Sargasso Sea as Observed by Profiling Biogeochemical Floats, Global Biogeochem. Cy., 35, e2020GB006824, https://doi.org/10.1029/2020GB006824, 2021. 
Bittig, H. C., Fiedler, B., Scholz, R., Krahmann, G., and Körtzinger, A.: Time response of oxygen optodes on profiling platforms and its dependence on flow speed and temperature, Limnol. Oceanogr.-Meth., 12, 617–636, https://doi.org/10.4319/lom.2014.12.617, 2014. 
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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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