Figure 3. NDSI Maps generated from Sentinel-2 Optical Multi-spectral
data for – (A) 20TH November 2019, (B)
27TH December 2019 and, (C) 20THJanuary 2020
The maximum values of NDSI for first two dates were 0.78 and 0.87
respectively while after the application of fertilisers in January first
week (as told by the local farmers), there was an increase in salinity
levels and maximum value increased to 0.973.