4.3 - EVI vs NDVI performance and common drawbacks

Figure 4.3.NDVI vs EVI performance

A problem common to all VIís is their empirical nature. These two figures show the steep gradient in vegetation cover over South America, including: the hyperarid Atacama desert (no vegetation), the semi-arid and sub-humid portions of the Brazilian Cerrado (savannah biome), and the humid and perhumid portions of the Amazon tropical rainforest.