Table 4. Emissivity according to NDVI ranges

NDVI ranges	Emissivity (ℇ)
NDVI < -0.185	0.995
-0.185≤ NDVI < 0.157	0.970
0.157≤ NDVI ≤0.727	1.0094+0.0471n (NDVI)
NDVI > 0.727	0.990