• Land Cover
• Leaf Area Index - LAI
  • CYCLOPES Project
  • GEOLAND Project
  • VGT4AFRICA Project
  • POLDER Project
  • AMMA Project
• Fraction of Absorded PAR - FAPAR
  • CYCLOPES Project
  • GEOLAND Project
  • POLDER Project
  • AMMA Project
• Fraction of Vegetation Cover - Fcover
  • CYCLOPES Project
  • GEOLAND Project
  • VGT4AFRICA Project
  • POLDER Project
  • AMMA Project
• NDVI
  • POLDER - PARASOL project
  • AMMA project
• Land Surface Reflectance
  • CYCLOPES Project
  • GEOLAND Project
  • POLDER - PARASOL Project
  • GLOBCOVER Project
• Burnt Areas
• Land Surface Albedo
  • CYCLOPES Project
  • GEOLAND Project
  • POLDER-PARASOL Project
  • AMMA Project
  • VGT4AFRICA Project
• BRDF
  • POLDER-1 - BRDF Data Base - V2.00
  • POLDER-2 - BRDF Data Base - V1.00
  • POLDER-3 - BRDF Data Bases
• Downwelling Shortwave Radiation
  • GEOLAND Project
  • AMMA Project
• Downwelling Longwave Radiation
  • GEOLAND Project
  • AMMA Project
• Land Surface Temperature
  • GEOLAND Project
  • AMMA Project
• Precipitation
• Soil Moisture
• Water Bodies
• Water Level

NDVI

The Normalized Difference Vegetation Index is calculated as the normalized ratio of the difference between the reflectances measured in the red and near-infrared sensor bands. The NDVI is the most frequently used vegetation index to assess the quantity of vegetation on the surface, and to monitor the temporal ecosystems variations.
Postel provides NDVI, derived from observations of various sensors (POLDER, AVHRR, SEVIRI) in the frame of different projects :
  POLDER - PARASOL
  AMMA