Typically, a vegetation index is constructed in such a way that the attenuated reflected sunlight energy (1% to 30% of incident sunlight) is amplified by ratio-ing red and NIR following this equation:: formula_1The evolution of the vegetation index through time, depicted by the graph above, exhibits a strong ارتباط (إحصاء) with the typical green vegetation growth stages (emergence, vigor/growth, maturity, and harvest/senescence).
Typically, a vegetation index is constructed in such a way that the attenuated reflected sunlight energy (1% to 30% of incident sunlight) is amplified by ratio-ing red and NIR following this equation:: formula_1The evolution of the vegetation index through time, depicted by the graph above, exhibits a strong correlation with the typical green vegetation growth stages (emergence, vigor/growth, maturity, and harvest/senescence).