An inter-comparison exercise of Sentinel-2 radiometric validations assessed by independent expert groups

Nicolas Lamquin, Emma Woolliams, Véronique Bruniquel, Ferran Gascon, Javier Gorroño, Yves Govaerts, Vincent Leroy, Vincent Lonjou, Bahjat Alhammoud, Julia A. Barsi, Jeffrey S Czapla-Myers, Joel McCorkel, Dennis Helder, Bruno Lafrance, Sebastien Clerc, Brent N. Holben

Research output: Contribution to journalArticle

1 Scopus citations

Abstract

Copernicus is the European Union's Earth Observation and Monitoring programme, delivering free access to operational and historical environmental data to support applications in a wide range of societal benefit areas. To allow meaningful long-term environmental monitoring and robust decision-making, it is essential to ensure that satellite-retrieved products are of high quality and consistency. This paper describes the outputs of an international workshop on the radiometric calibration validation of the Copernicus Sentinel-2A and Sentinel-2B Multi-Spectral Instrument. A wide range of vicarious methodologies have been applied independently and then compared per type of target. All methods agree on the good radiometric performance of both Sentinel-2A and Sentinel-2B with respect to the mission requirements as well as on evidence of a slight bias between the two instruments. Comparisons of all these results are discussed to highlight the benefits and advantages of the methods as well as to propose potential improvements either for the methods themselves and/or for the comparison exercise.

Original languageEnglish (US)
Article number111369
JournalRemote Sensing of Environment
Volume233
DOIs
StatePublished - Nov 1 2019

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Keywords

  • Expert groups
  • Inter-comparison
  • Radiometric validation
  • Sentinel-2
  • Vicarious methodologies

ASJC Scopus subject areas

  • Soil Science
  • Geology
  • Computers in Earth Sciences

Cite this

Lamquin, N., Woolliams, E., Bruniquel, V., Gascon, F., Gorroño, J., Govaerts, Y., Leroy, V., Lonjou, V., Alhammoud, B., Barsi, J. A., Czapla-Myers, J. S., McCorkel, J., Helder, D., Lafrance, B., Clerc, S., & Holben, B. N. (2019). An inter-comparison exercise of Sentinel-2 radiometric validations assessed by independent expert groups. Remote Sensing of Environment, 233, [111369]. https://doi.org/10.1016/j.rse.2019.111369