Spectral unmixing and mapping of surface features related to soil erosion

Spectral mixture modelling was performed for identification and mapping of land degradation features related to soil erosion processes. End-members were characterised by using average pure pixel reflectance. The research has demonstrated that regional patterns of soil surface erosion features can be reliably mapped using linear spectral mixture analysis. Extrapolation of this approach to other regions where soil degradation features are correlated with spectrally distinguishable surface characteristics is feasible, provided an optimisation of the unmixing model as a function of local or regional surface component types is completed