Normalized Difference Vegetation Index - (NDVI)
The Normalized Difference Vegetation Index (NDVI) can be used to measure and monitor plant growth, vegetation cover, and biomass production. It is a dimensionless variable.
The values vary between -1 and 1. Increasing positive NDVI values indicate increasing amounts of green vegetation. Moderate values represent shrub and grassland (0.2 to 0.3), while high values indicate temperate and tropical rainforests (0.6 to 0.8). NDVI values near zero and decreasing negative values indicate nonvegetated features such as barren surfaces (rock and soil) and water, snow, ice, and clouds.
Properties
| Sensor | SPOT/PROBA-V |
|---|---|
| Since | 01-04-1998 |
| Spatial Resolution | 1 km |
| Temporal Resolution | 10 Days |
| Extent | Eastern Africa |
| Format | Geotiff |
| Source | GMES |
Derived Products
| Derived sub-product | Description | Available |
|---|---|---|
| ndvi-linearx2 | Filtered NDVI (linear filtering applied twice) | since 1/1/2011 |
| 10davg-linearx2 | Statistic: AVG of ndvi-linearx2 | 36 dekads |
| 10dmin-linearx2 | Statistic: MIN of ndvi-linearx2 | 36 dekads |
| 10dmax-linearx2 | Statistic: MAX of ndvi-linearx2 | 36 dekads |
| 10dmed-linearx2 | Statistic: MED of ndvi-linearx2 | 36 dekads |
| 10dstd-linearx2 | Statistic: MED of ndvi-linearx2 | since 1/1/2011 |
| 10ddiff-linearx2 | Anomaly: DIF of ndvi-linearx2 | since 1/1/2011 |
| 10dsndvi-linearx2 | Anomaly: SNDVI of ndvi-linearx2 | since 1/1/2011 |
| 10dperc-linearx2 | Anomaly: PERC of ndvi-linearx2 | since 1/1/2011 |
| linearx2difflinearx2 | Anomaly: Absolute Difference (ndvi-linearx2 -10davglinearx2) | since 1/1/2011 |
| vci-linearx2 | Anomaly: VCI (linearx2 vs. linearx2 statistics) | since 1/1/2011 |
| icn-linearx2 | Anomaly: ICN (linearx2 vs. linearx2 statistics) | since 1/1/2011 |
| ratio-linearx2 | Anomaly: Ratio (100 * ndvi-linearx2/10davg-linearx2) | since 1/1/2011 |
| monndvi I | ndicator: monthly NDVI (from ndvi-linearx2) | since 1/1/2011 |
| 1monavg | Statistic: monthly multi-year average NDVI (from ndvilinearx2) | 12 months |
| 1monmin | Statistic: monthly multi-year min NDVI (from ndvi-linearx2) | 12 months |
| 1monmax | Statistic: monthly multi-year max NDVI (from ndvilinearx2) | 12 months |
| 1monicn | Statistic: monthly std NDVI (from ndvi-linearx2) | since 1/1/2011 |
| 1monvci | Statistic: monthly VCI NDVI (from ndvi-linearx2) | since 1/1/2011 |
| 1monstd | Statistic: monthly std NDVI (from ndvi-linearx2) | since 1/1/2011 |
| 1mondiff | Anomaly: monthly diff NDVI (from ndvi-linearx2) | since 1/1/2011 |
| 1monperc | Anomaly: monthly perc NDVI (from ndvi-linearx2) | since 1/1/2011 |
| 1monsndvi | Anomaly: monthly SNDVI (from ndvi-linearx2) | since 1/1/2011 |
| monthly-ratio | Anomaly: monthly ratio (100*monndvi/1monavg) | since 1/1/2011 |
| ndvi-linearx1 | Filtered NDVI (linear filtering) | since 1/1/2011 |
| year-min-linearx2 | Statistic: ndvi-linearx2 minimum over every year | since 2011 |
| year-max-linearx2 | Statistic: ndvi-linearx2 maximum over every year | since 2011 |
| absol-min-linearx2 | Statistic: ndvi-linearx2 overall minimum | 1 file |
| absol-max-linearx2 | Statistic: ndvi-linearx2 overall maximum | 1 file |
| baresoil-linearx2 | Bare-soil indicator from ndvi-linearx2 | since 1/1/2011 |
| diff-lineax2 | Anomaly: Absolute Difference. (ndv – 10davg-linearx2) | since 1/1/2011 |
| vci | Anomaly: VCI (ndv vs. linearx2 statistics) | since 1/1/2011 |
| icn | Anomaly: ICN (ndv vs. linearx2 statistics) | since 1/1/2011 |