Articles | Volume 21, issue 1
https://doi.org/10.5194/os-21-63-2025
https://doi.org/10.5194/os-21-63-2025
Research article
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15 Jan 2025
Research article | Highlight paper |  | 15 Jan 2025

Integrating wide-swath altimetry data into Level-4 multi-mission maps

Maxime Ballarotta, Clément Ubelmann, Valentin Bellemin-Laponnaz, Florian Le Guillou, Guillaume Meda, Cécile Anadon, Alice Laloue, Antoine Delepoulle, Yannice Faugère, Marie-Isabelle Pujol, Ronan Fablet, and Gérald Dibarboure

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Cited articles

Archambault, T., Filoche, A., Charantonnis, A., and Béréziat, D.: Multimodal unsupervised spatio-temporal interpolation of satellite ocean altimetry maps, InVISAPP, 2023. 
Archambault, T., Filoche, A., Charantonis, A., Béréziat, D., and Thiria, S.: Learning Sea Surface Height Interpolation From Multi-Variate Simulated Satellite Observations, JAMES, 16, https://doi.org/10.1029/2023MS004047, 2024. 
Archer, M. R., Li, Z., Wang, J., and Fu, L.: Reconstructing fine-scale ocean variability via data assimilation of the SWOT pre-launch in situ observing system, J. Geophys. Res.-Oceans, 127, e2021JC017362, https://doi.org/10.1029/2021JC017362, 2022. 
Aviso+: Timeline of modern radar altimetry missions, version 2024/01, https://doi.org/10.24400/527896/A02-2022.001, 2022. 
AVISO/DUACS: SWOT Level-3 KaRIn Low Rate SSH Expert (v1.0), CNES [data set], https://doi.org/10.24400/527896/A01-2023.018, 2024a. 
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Co-editor-in-chief
The paper demonstrates how oceanographic parameters, like Sea Level Anomaly, surface currents and vorticity, from remote sensing are improved when SWOT (Surface Water Ocean Topography) data are included.
Short summary
The Surface Water and Ocean Topography (SWOT) mission provides unprecedented swath altimetry data. This study examines SWOT's impact on mapping systems, showing a moderate effect with the current nadir altimetry constellation and a stronger impact with a reduced one. Integrating SWOT with dynamic mapping techniques improves the resolution of satellite-derived products, offering promising solutions for studying and monitoring sea-level variability at finer scales.
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