Abstract

• River morphology has been a subject of great challenge to scientists. It is based on a proper understanding of the morphological features and changes. In this paper, an overview of river morphology is presented from the geomorphic viewpoint. The main aim is to describe river channels shape and how they change overtime. This study examines the morphological change of Ayeyarwady River from Pyay to Hinthada segment by using Geographic Information Systems (GIS) technique. Channel pattern and channel movement, channel bar formation and morphology of point-bar have been identified using a time series images from Google Earth Engine (2015, 2011, 2006, 2001, 1996 and 1991). Settlement areas are also extracted from topographic maps of 1945 and 2002. ArcGIS is used for visual screen digitizing and to obtain accurate information about river channel movement.