Ocean Science
Ocean Science
OS
Articles | Volume 22, issue 4
Articles | Volume 22, issue 4
https://doi.org/10.5194/os-22-2357-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/os-22-2357-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 22, issue 4
Research article
 | 
05 Aug 2026
Research article |  | 05 Aug 2026

Sea surface salinity downscaling using deep generative diffusion models

Enzo Forestier, Luther Ollier, Roy El Hourany, Jacqueline Boutin, Carlos Mejia, and Sylvie Thiria

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Short summary
This study evaluates deep generative diffusion models for downscaling sea surface salinity in the Gulf Stream. Using a reanalysis dataset as a controlled framework, it assesses the added value of high-resolution sea surface temperature and sea surface height as auxiliary constraints. The results show that diffusion-based reconstructions preserve plausible fine-scale variability, highlighting the method’s potential for future applications to satellite products.
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