Table 3.

Calculation of indicators.

Index	Formula		Result
NDVI	$NDVI=({\rho }_{Nir}-{\rho }_{Red})/({\rho }_{Nir}+{\rho }_{Red})$	(6)
WET	$\begin{array}{l}WET=0.1511\ast {\rho }_{Blue}+0.1973\\ \ast {\rho }_{Green}+0.3283\\ \ast {\rho }_{Red}+0.3407\ast {\rho }_{Nir}\\ -0.7117\\ \ast {\rho }_{Swir1}-0.4559\ast \\ {\rho }_{Swir2}\end{array}$	(7)
NDBSI	$\begin{array}{l}IBI=\{\frac{2{\rho }_{Swir1}}{({\rho }_{Swir1}+{\rho }_{Nir})}\\ -[\frac{{\rho }_{Nir}}{\left({\rho }_{Nir}+{\rho }_{Red}\right)}\\ +\frac{{\rho }_{Green}}{({\rho }_{Green}+{\rho }_{Swir1})})]\}\\ /\{\frac{2{\rho }_{Swir1}}{\left({\rho }_{Swir1}+{\rho }_{Nir}\right)}\\ +[\frac{{\rho }_{Nir}}{({\rho }_{Nir}+{\rho }_{Red})}\\ +\frac{{\rho }_{Green}}{({\rho }_{Green}+{\rho }_{Swir1})}]\} \\ SI=\frac{({\rho }_{Swir1}+{\rho }_{Red})-({\rho }_{Nir}+{\rho }_{Blue})}{({\rho }_{Swir1}+{\rho }_{Red})+({\rho }_{Nir}+{\rho }_{Blue})} \\ NDBSI=(IBI+SI)/2 \end{array}$	(8) (9) (10)
LST	$\begin{array}{l}{T}_s=[a\ast \left(1-C-D\right)\\ +(b\ast (1-C-D)\\ +C+D)\ast T_i-D\ast \\ T_a]/C\\ C=\epsilon \ast \tau \\ D=\left(1-\tau \right)\ast [1+(1-\epsilon )\ast \tau ]\end{array}$	(11) (12) (13)