What is the Normalized Differential Vegetation Index (NDVI)?
NDVI is calculated from the visible and near-infrared light reflected by vegetation. Healthy vegetation absorbs most of the visible light that hits it and reflects a large portion of the near-infrared light. Unhealthy senescing or sparse vegetation reflects more visible light and less infrared light. These values are used to calculate “Greenness”.
Related Questions
- In order to insure grazing land or hay land forage with the Vegetation Index PRF Insurance Program must the grid ID, crop type and index interval be determined before the sales closing date?
- What are some of the basic concepts of the Vegetation Index Pasture, Rangeland, Forage (VI-PRF) Insurance Program?
- What is the distinction betweeen handicap index and handicap differential?
