EO:EUM:DAT:SPOT:S10NDWISANormalised Difference Water Index (NDWI) - SPOT - South AmericaseriesAtmospheric conditionsAgricultureBiodiversityVegetationLandEUMETCast-AmericasEUMETCast-EuropeEUMETCast-AfricaEUMETCast2010-06-07Shortwave infrared (SWIR) is absorbed by water, be it free water bodies or the water contained in plant cells. To assess water content in a normalised way, the NDWI (normalised difference water index) was introduced. This index increases with vegetation water content or from dry soil to free water. Application of the product: drought stress detection.2010-10-13South America-copyrightcopyrightS10NDWISA2010-06-07-93.0 -56.0-33.0 25.0