QUANTITATIVE ANALYSIS OF WATERSHEDS PARTITIONED FROM CARTOSAT DEM OF LOWER INDUS SUB-BASIN VIA MULTIFRACTAL SPECTRA

This paper provides watershed-specific information dimensions computed through construction of binomial multiplicative process based multifractal spectra. Information dimension of watersheds provides clues on the distribution of terrestrial elevations spread across all the spatial positions within the watershed. This information dimension could be related to the responses of watersheds to the perturbation caused due to cascade of endogenic and exogenic forces. Higher the information dimension, lesser is the response to the cascade of endogenic and exogenic forces. Based on the information dimension computed through multifractal spectra for thirty one watersheds partitioned from the Cartosat DEM of the Lower Indus subbasin, we inferred that the watersheds are within the range of highly heterogeneous to highly homogeneous categories. It would be interesting to adopt this approach to study watersheds belonging to physiographically distinct regions.