Abstract

• In nature, the shoreline is one of the rapidly changing linear features of the coastal zone which is dynamic. Based on geospatial application, this study analyzed coastal processes and depth assesment for western channel of the Yangon River.NDWI(Normalized Difference Water Index),MNDWI (Modified Normalized Difference Water Index), NDSSI ((Normalized Difference Suspended Sediment Index) maps were produced using band ratio equation using images of Landsat LT 5 TM, LE 7 ETM and LC8 OLI for 1995, 2005 and 2018. These Landsat images were radiometrically and geometrically corrected, and multi-temporal post-classification analysis was performed to detect land cover changes, extracting shoreline positions to estimate shoreline changes of the Yangon River. Hydrographic survey data were transformed to bathymetric map using interpolation function in GIS. In order to integrate with topographic data, topo values were extracted from DEM (Digital Elevation Model) and merged with bathymetric data to get a relief map. In this research paper, the NDBI index (Normalized Difference Built up Index) produced for land cover maps. According to these indexes, the shoreline area is retreated to the western part of the area and sediment deposition is also found in this area.