Earth System Science Data
Earth System Science Data
Earth System Science Data
Articles | Volume 17, issue 10
Articles | Volume 17, issue 10
https://doi.org/10.5194/essd-17-5315-2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/essd-17-5315-2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 17, issue 10
Data description article
 | 
14 Oct 2025
Data description article |  | 14 Oct 2025

A consistent regional dataset of dissolved oxygen in the western Mediterranean Sea (2004–2023): CTD-O2WMED

Malek Belgacem, Katrin Schroeder, Marta Álvarez, Siv K. Lauvset, Jacopo Chiggiato, Mireno Borghini, Carolina Cantoni, Tiziana Ciuffardi, and Stefania Sparnocchia

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Short summary
The Mediterranean Sea is changing rapidly, underscoring the urgent need for high-quality datasets to quantify trends and assess impacts on biogeochemical cycles. O2 is a key indicator of marine ecosystem health and plays a central role in CO2 and nutrient cycling. We compiled a regional-scale dataset of O2 in the western Mediterranean to provide a robust observational foundation for assessing O2 variability, associated with climate change, and anomalies related to deoxygenation processes.
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