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

Données et ressources

Informations supplémentaires

Étendue temporelle2010-07-12 – 2022-07-09
Date (publication)2026-06-15
StatutonGoing
Fréquence de mise à jourasNeeded
Langue des métadonnéesfr
LicenceLicence ouverte
Métadonnées sourcesISO 19115 XML
Dernière mise à jour2026-11-04
Créé2026-11-04
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