NDVI

Abbreviation for "Normalized Differenced Vegetation Index" or "Normalized Density Vegetation Index". The vegetation index used in agriculture is calculated on the basis of satellite image data. Vegetation indices are one of the primary sources for observing and analysing the earth's surface. The NDVI is calculated based on the intensity of reflected light in the red and near-infrared spectral range recorded by satellites. The index is based on the fact that healthy vegetation reflects relatively little radiation in the visible spectral range and relatively much in the subsequent near-infrared range. In contrast, other surface materials such as soil, rocks, water surfaces or even dead vegetation do not show such a characteristic difference. The global NDVI in 1998:

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NDVI

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