Minimize Calibration and Validation

There are three main objectives for calibration and validation (cal/val) activities.

  • To provide a comprehensive initial assessment of product validity and quality at the end of commissioning activities.
  • To monitor the stability and the quality of the products throughout the operational phase of the mission. 
  • To continuously improve the quality of the products throughout the operational phase of the mission following the evolving user requirements.

The cal/val plan defines the scope of activities that calibrate the on-board instruments and validate the data products generated operationally and disseminated by the PDGS centres.

All SENTINEL-3 cal/val activities are linked to mission requirements. A product error source analysis is performed to identify the main sources for each product. There are five generic sources that can contribute to total product error.

  • Instrument errors refer to those errors associated with instrument hardware and their calibration parameters.
  • Satellite-instrument coupling errors refer to errors associated with interactions between the platform and the instrument.
  • Satellite errors refer to errors associated with satellite operations.
  • Processing errors refer to errors associated with data processing.
  • Validation errors refer to errors arising within the validation process.