3.2 Correlations of Parameters with EC at 60 cm depth
The various backscatter parameters were analysed for correlation with
Electrical Conductivity (EC) and NDSI for both VH and VV polarisation
channels. For
σ0,
β0 and γ0, high values of
R2 statistics for correlation were given as shown in
Figures 4. Figure 4 shows the correlative plots for σ0in VH and VV polarisation with Surface EC for all three dates, since
C-band SAR waves are affected by the surface soil conditions and
interacts with the surface soil ions as shown by Figure 4-