It can be important framework data to monitor the change of land-use pattern of river
boundary in design and management of river. This study analyzed the change of land-use
pattern of Gab and Yudeung River using time-series aerial images. To do this, we
carried out radiation and geometric correction of image, and estimated land-use changes
in inland and floodplain. As the analysis of inland, the ratio of residential,
commercial, industrial, educational and public area, that is urbanized element,
increases, but that of agricultural area shows a decline on the basis of 1990. Also,
Minimum Distance Method, which is a kind of supervised classification method, is
applied to extract water-body and sand bar layer in floodplain. As the analysis of
land-use, the ratio of level-upped riverside land and water-body increases, but
that of sand bar decreases. These time-series land use information can be important
decision making data to evaluate the urbanization of river boundary, and especially it
gives us goodness in river development project such as the composition of ecological
habitat.