Presentation

Theia Surface Reflectance Scientific Expertise Centre (SEC) brings together teams from Cesbio, LSCE, CNRM and LOA that develop high-resolution surface reflectance time series at level 2A (cloud masks for atmospheric correction) and level 3A (monthly summaries of light pixels).

Sentinel-2 and Landsat-8 data are used.

The product resulting from the Surface reflectance SEC has a scale of 10 m to 20 m (Sentinel 2) to 30 m (Landsat 8). The area covered corresponds to 10 times the area of France, i.e. 5 million km² (Sentinel 2) and France and Overseas regions and collectivities (Landsat 8). The update frequencies go from five days (Sentinel 2) to 16 days (Landsat 8) and one month (level 3A).

Schedule

  • Since July 2014 for Landsat 8 (level 2A)
  • Since October 2016 for Sentinel 2 (level 2A)
  • Since October 2016 for Sentinel 2 (level 2A)

Contact

Olivier Hagolle
Cesbio
@O.Hagolle
Contributions