Experimental Products: Multimission Gridded (with SWOT) Level-4 Sea Surface Heights and Velocities
These gridded products are produced from the along-track (or Level-3) SEA LEVEL products (DOI: doi.org/10.48670/moi-00147) delivered by the Copernicus Marine Service (CMEMS, marine.copernicus.eu) for satellites SARAL/AltiKa, Cryosat-2, HaiYang-2B, Jason-3, Copernicus Sentinel-3A/B, Sentinel-6 MF, SWOT nadir, and SWOT Level-3 KaRIn sea level products (DOI: https://doi.org/10.24400/527896/A01-2023.018). Three mapping algorithms are proposed: MIOST, 4DvarNET, 4DvarQG:
- the MIOST approach which give the global SSH solutions: the MIOST method is able of accounting for various modes of variability of the ocean surface topography (e.g., geostrophic, barotrope, equatorial waves dynamic …) by constructing several independent components within an assumed covariance model.
- the 4DvarNET approach for the regional SSH solutions: the 4DvarNET mapping algorithm is a data-driven approach combining a data assimilation scheme associated with a deep learning framework.
- the 4DvarQG approach for the regional SSH solutions: the 4DvarQG mapping technique integrates a 4-Dimensional variational (4DVAR) scheme with a Quasi-Geostrophic (QG) model.
Data and resources
-
Manuel utilisateurPDF Open
-
seasurfaceheightabovesealevelWMS Open
-
Ballarotta, M., Ubelmann, C., Bellemin-Laponnaz, V., Le Guillou, F., Meda, G., Anadon, C., Laloue, A., Delepoulle, A., Faugère, Y., Pujol, M.-I., Fablet, R.,…HTML Open
-
Beauchamp, M., Febvre, Q., Georgenthum, H., and Fablet, R., 2023: 4DVarNet-SSH: end-to-end learning of variational interpolation schemes for nadir and…HTML Open
-
Fablet, R., Beauchamp, M., Drumetz, L., and Rousseau, F., 2021: Joint Interpolation and Representation Learning for Irregularly Sampled Satellite-Derived…HTML Open
-
Le Guillou, F., Metref, S., Cosme, E., Ubelmann, C., Ballarotta, M. Le Sommer, J. Verron, J., 2021: Mapping Altimetry in the Forthcoming SWOT Era by…HTML Open
-
Ubelmann, C., Dibarboure, G., Gaultier, L., Ponte, A., Ardhuin, F., Ballarotta, M., & Faugère, Y., 2021: Reconstructing ocean surface current combining…HTML Open
-
THREDDSHTML Open
-
HTML Open
Additional information
| Temporal extent | 2023-03-28 – 2024-07-01 |
|---|---|
| Date (publication) | 2024-06-11 |
| Status | completed |
| Update frequency | asNeeded |
| Metadata language | en |
| License | Licence ouverte |
| Source metadata | ISO 19115 XML |
| Last updated | 2026-11-04 |
| Created | 2026-11-04 |
| API | package_show |