Table 1: Soil salinity indices based on different band ratios of Landsat.

Salinity indexBand ratiosReference

Normalized difference salinity index[43]
Brightness index[44]
Salinity index-1[44]
Salinity index-2[44]
Salinity index-3 [27]
Salinity index-4 [27]
Salinity index-5[45]
Salinity index-6[45]
Salinity index-7[45]
Salinity index-8[46]
Salinity index-9[46]

, blue band; , green band; , red band; NIR, near infrared band of Landsat 8 image.