Morphodynamic Change Detection By Using RS, PCA and Fuzzy Logic Case study Taleghan Rriver Basin

Abstract
Many researchers have recently considered the use of data obtained from Remote Sensing (R.S) to reveal changes. In the present study, we have attempted to reveal the morphodynamic changes in Taleghan river Basin through image satellite and by analyzing the principal component analysis (PCA) and Fuzzy Logic. The final map indicates the intensity of changes through, 15-years interval observed (1987-2002).The results showed that the most intensive changes were beside flood pasts and slopes, and also in the course of Taleghan River. The least intensity of changes was also found to be in mountainous region and rocky lands of the basin under investigation.
Land use is one of the factors that influence the morphodynamic features of the basin. Geomorphologic and morphodynamic forms, therefore, change according to the type of land use. In this research we have compared land use changes during the 1988-2002 intervals.

Keywords: Morphodynamic, change detection, PCA, Fuzzy Logic, Taleghan.