Abstract

• Three areas were selected and observed for this study which includes the Pazumyaung area, Madauk area and Kyaikto area along Sittaung River in Myanmar. Geomorphologic measurements, samples collection and outcrop measurements were carried out during dry season when water level was low and most of point bars were exposed. Geomorphological characters of Sittaung River were determined based on UTM maps, Google earth maps and Landsat images by using geospatial analysis, studying of scroll bar pattern and observing sinuosity and width of the river. The distinguishing of both surface sediment distribution and sedimentary structures of point bar were provided for the geomorphological characters. By the analytical data, the fluvial dominated zone is Pazumyaung area, tidal and fluvial transitional zone is Madauk area and tidal dominated zone is Kyaikto area. The water body changes and channel migration of Sittaung River are analyzed by using density slice on ENVI 4.7. South of Madauk area and Kyeikto area are highly environmentally changed areas where natural disasters such as river flooding and flooding related environmental problems in Sittaung River and its environs are likely to occur.