The main SRAL validation tasks developed during the SENTINEL-3 commissioning and routine phases are:

  •  in-commissioning phase Level-2 algorithm verification for all Level-2 'baseline' products (tuning of all relevant processing parameters, regeneration of all Level-2 auxiliary products)
  •  Level-2 algorithm validation starting during the commissioning phase and continuing into phase E2
  • quantifying error estimates for Level-1 and Level-2 products
  • validation against in situ measurements
  • validation against other altimetry missions
  • wind, wave product validation against models
  • sea-ice freeboard validation with CRYOSAT
  • internal calibration sequence validation
  • tracking mode validation
  • long term monitoring for consistency and quality of geophysical products
  • advising on re-processing campaigns.

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