Intercomparison of three SWOT-derived Level-4 products: from mapping accuracy to multi-scale dynamical representation

Wu, Qifan; Zhou, Chaojie; Liu, Bijin; Wu, Wei; Li, Jianlong; Yang, Jungang

doi:10.5194/os-22-2939-2026

Articles | Volume 22, issue 5

https://doi.org/10.5194/os-22-2939-2026

© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/os-22-2939-2026

© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 22, issue 5

Technical note

|

28 Sep 2026

Technical note |

| 28 Sep 2026

Intercomparison of three SWOT-derived Level-4 products: from mapping accuracy to multi-scale dynamical representation

Qifan Wu, Chaojie Zhou, Bijin Liu, Wei Wu, Jianlong Li, and Jungang Yang

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Cited articles

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.

AVISO/DUACS: SSALTO/DUACS Experimental Product Handbook Gridded Sea Level Heights and geostrophic velocities computed with SWOT Level-3 products (using both KaRIn and nadir instruments) (v1.0), CNES [data set], https://doi.org/10.24400/527896/A01-2024.007, 2024a.

AVISO/DUACS: SWOT L3_LR_SSH_Basic, SWOT Level-3 KaRIn Low Rate SSH Basic (v3.0), CNES [data set], https://doi.org/10.24400/527896/A01-2023.017, 2024b.

AVISO/DUACS: SWOT level‐3 KaRIn low rate SSH expert (V2.0.1), CNES [data set], https://doi.org/10.24400/527896/A01-2023.018, 2025.

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.