Experimental Products: Polar Ocean Gridded Level-4 Sea Surface Heights and Velocities
Experimental gridded level-4 product of Sea Surface height Anomalies and geostrophic velocities from 50°N up to 88°N for the Arctic Ocean and 50°S to 88°S for the Southern Ocean. The products include ice-covered regions using sea level observations within the leads (open water area within a fracture of sea ice). Waveform classification of satellite echoes is performed to differentiate leads and open ocean from floes measurements using neural-network-based classification method. Then the missions are cross calibrated on SARAL/AltiKa and the Sea Level Anomalies along-track data from 3 altimetry missions are generated. The gridded products are computed using several types of mapping method (Optimal Interpolation (OI) or Multiscale Interpolation Ocean Science Topography (MIOST)).
Therefore, the files available are:
- 3 monomission gridded files using Optimal Interpolation (OI) mapping method: SARAL/AltiKa, Cryosat-2 and Copernicus Sentinel-3A
- multimission gridded files combining the 3 satellites using Optimal Interpolation (OI) mapping method
- multimission gridded files combining the 3 satellites using Multiscale Interpolation Ocean Science Topography (MIOST) mapping method
Data and resources
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Manuel UtilisateurPDF Open
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THREDDSHTML Open
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Auger, M., Sallée, J.-B., Prandi, P., & Naveira Garabato, A. C. (2022). Subpolar Southern Ocean seasonal variability of the geostrophic circulation from…HTML Open
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Prandi, P., Poisson, J.-C., Faugère, Y., Guillot, A., and Dibarboure, G., 2021: Arctic sea surface height maps from multi-altimeter combination, Earth Syst.…HTML Open
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Veillard P, Prandi P, Pujol M-I, Daguzé J-A, Piras F, Dibarboure G and Faugère Y (2024) Arctic and Southern Ocean polar sea level maps and along-tracks from…HTML Open
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Bonaduce et al., OSTST 2022, Exploitation of high-resolution datasets for sea level studies in the Nordic Seas and Arctic OceanHTML Open
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Prandi P. et al., OSTST 2022: Benefits of multi-altimeter combination for Arctic sea surface height retrievals,HTML Open
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HTML Open
Additional information
| Temporal extent | 2010-07-12 – 2022-07-09 |
|---|---|
| Date (publication) | 2026-06-15 |
| Status | onGoing |
| Update frequency | asNeeded |
| Metadata language | fr |
| License | Licence ouverte |
| Source metadata | ISO 19115 XML |
| Last updated | 2026-11-04 |
| Created | 2026-11-04 |
| API | package_show |