. 2019 Mar 6;14(3):e0212294. doi: 10.1371/journal.pone.0212294

Table 2. Full name, abbreviation (Abb.), and formula of different spectral reflectance indices (SRIs) developed in this study and from the literature.

Full name and Abb. of SRIs	Formula	Reference
Normalized difference Index (NDI_548,522)	(R₅₄₈ − R₅₂₂) / (R₅₄₈ + R₅₂₂)	This work
Normalized difference Index (NDI_626,386)	(R₆₂₆ − R₃₈₆) / (R₆₂₆ + R₃₈₆)	This work
Normalized difference Index (NDI_680,1650)	(R₆₈₀ − R₁₆₅₀) / (R₆₈₀ + R₁₆₅₀)	This work
Normalized difference Index (NDI_840,818)	(R₈₄₀ − R₈₁₈) / (R₈₄₀ + R₈₁₈)	This work
Normalized difference Index (NDI_1226,670)	(R₁₂₂₆ –R₆₇₀) / (R₁₂₂₆ + R₆₇₀)	This work
Normalized difference Index (NDI_1382,670)	(R₁₃₈₂ –R₆₇₀) / (R₁₃₈₂ + R₆₇₀)	This work
Normalized difference Index (NDI_1450,900)	(R₁₄₅₀ –R₉₀₀) / (R₁₄₅₀ + R₉₀₀)	This work
Normalized difference Index (NDI_1650,920)	(R₁₆₅₀ –R₉₂₀) / (R₁₆₅₀ + R₉₂₀)	This work
Normalized difference Index (NDI_2450,2100)	(R₂₄₅₀ − R₂₁₀₀) / (R₂₄₅₀ + R₂₁₀₀)	This work
Normalized difference Index (NDI_2498,1450)	(R₂₄₉₈ − R₁₄₅₀) / (R₂₄₉₈ + R₁₄₅₀)	This work
Normalized difference Index (NDI_2500,2250)	(R₂₅₀₀ − R₂₂₅₀) / (R₂₅₀₀ + R₂₂₅₀)	This work
Normalized difference Index (NDI_2500,2470)	(R₂₅₀₀ − R₂₄₇₀) / (R₂₅₀₀ + R₂₄₇₀)	This work
Moisture stress index (MSI)	R₁₆₀₀ /R₈₂₀	[37]
Simple ratio water index (SRWI)	R₈₆₀/R₁₂₄₀	[38]
Normalized water index -3 (NWI-3)	(R₉₇₀ − R₈₈₀) / (R₉₇₀ + R₈₈₀)	[39]
Normalized difference vegetation index (NDVI _900,685)	(R₉₀₀ − R₆₈₅) / (R₉₀₀ + R₆₈₅)	[40]
Normalized difference moisture index (NDMI_2200,1100)	(R₂₂₀₀ –R₁₁₀₀) / (R₂₂₀₀ + R₁₁₀₀)	[41]
Normalized multi-band drought index (NMDI)	R₈₆₀ − (R₁₆₄₀ –R₂₁₃₀) / R₈₆₀ + (R₁₆₄₀ + R₂₁₃₀)	[42]
Optimized soil adjusted vegetation index (OSAVI)	(R₈₀₀ − R₆₇₀)/(R₈₀₀ + R₆₇₀ + 0.16)	[43]
Modified triangular vegetation index (MTVI)	1.2 × [(1.2 × (R₈₀₀ –R₅₅₀)– 2.5 × (R₆₇₀ –R₅₅₀)]	[44]