Ocean Science
Ocean Science
OS
Articles | Volume 22, issue 1
Articles | Volume 22, issue 1
https://doi.org/10.5194/os-22-241-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/os-22-241-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 22, issue 1
Research article
 | 
21 Jan 2026
Research article |  | 21 Jan 2026

A robust minimization-based framework for cyclogeostrophic ocean surface current retrieval

Vadim Bertrand, Julien Le Sommer, Victor Vianna Zaia De Almeida, Adeline Samson, and Emmanuel Cosme

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Cited articles

Archambault, T., Filoche, A., Charantonis, A. A., and Béréziat, D.: Multimodal Unsupervised Spatio-Temporal Interpolation of Satellite Ocean Altimetry Maps, https://hal.sorbonne-universite.fr/hal-03934647 (last access: 26 August 2025), 2023. a
Archer, M., Wang, J., Klein, P., Dibarboure, G., and Fu, L.-L.: Wide-swath satellite altimetry unveils global submesoscale ocean dynamics, Nature, 640, 691–696, https://doi.org/10.1038/s41586-025-08722-8, 2025. a, b
Arnason, G., Haltiner, G. J., and Frawley, M. J.: Higher-order geostrophic wind approximations, Mon. Weather Rev., 90, 175–195, 1962. a, b, c, d, e
Ballarotta, M., Ubelmann, C., Pujol, M.-I., Taburet, G., Fournier, F., Legeais, J.-F., Faugère, Y., Delepoulle, A., Chelton, D., Dibarboure, G., and Picot, N.: On the resolutions of ocean altimetry maps, Ocean Sci., 15, 1091–1109, https://doi.org/10.5194/os-15-1091-2019, 2019. a
Ballarotta, M., Ubelmann, C., Veillard, P., Prandi, P., Etienne, H., Mulet, S., Faugère, Y., Dibarboure, G., Morrow, R., and Picot, N.: Improved global sea surface height and current maps from remote sensing and in situ observations, Earth Syst. Sci. Data, 15, 295–315, https://doi.org/10.5194/essd-15-295-2023, 2023. a
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Understanding ocean surface currents is essential for navigation and environmental monitoring. Traditionally, currents are estimated from satellite sea surface height using a simplified balance. We developed a new method that goes beyond this approximation, providing more accurate currents estimates. Using a model simulation, satellite observations, and drifters data, we show that these corrections become increasingly important at finer spatial scales, especially in energetic regions.
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