NDVI
NDVI (Normalized Difference Vegetation Index)
The Normalized Difference Vegetation Index (NDVI) quantifies vegetation by measuring the difference between near-infrared (NIR) which vegetation strongly reflects and red light (RED) which vegetation absorbs. It is used to measure the healthiness of vegetation. The NDVI values have been calculated using the following equation:
- NDVI = (NIR – RED) / (NIR + RED)
The NDVI range is normalised and between -1 to +1.
The colour map used for NDVI is shown to the right of the image.
The data is available at 10 metre resolution.
