Table 2.

Vegetation indices (VIs) calculated.

Index type	Index	Formula	Reference
Difference	DVI	$\text{Nir}-\text{Red}$	(Shibayama et al., 1999)
Ratio	RVI	$\frac{\text{Nir}}{\text{Red}}$	(Shibayama et al., 1999)
Normalized	NDRE	$\frac{\text{Nir}-\text{Rededge}}{\text{Nir}+\text{Rededge}}$	(Barnes et al., 2000)
Three Band	MCARI	$((\text{Rededge}-\text{Red})-0.2* (\text{Rededge}-\text{Green}))*(\frac{\text{Rededge}}{\text{Red}})$	(Daughtry et al., 2000)
Combination of indices	CCII	$\frac{TCARI}{OSAVI}$	(Haboudane et al., 2002)
	TCARI	$3*[(\text{Rededge}-\text{Red})-0.2*(\text{Rededge}-\text{Green})*(\frac{\text{Rededge}}{\text{Red}})]$
	OSAVI	$(1+1.16)*(\frac{(\text{Nir}-\text{Red})}{\text{Nir}+\text{Rededge}+0.16})$

Green corresponds to 560 nm, the Red to 650 nm, Rededge to 730 and 717 and Nir to 840 and 842 nm wavelength in the first and the second year, respectively.