This study presents a methodology that aims to assess the impact of erosion along the coastline using Digital Shoreline Analysis System (DSAS) v.4.3 ArcGIS extension on acquired satellite images, involving the use of Geographic Information System (GIS) and Remote Sensing (RS). The Shoreline change detection was done for the period of 15 years using shoreline of 2007 and 2022 to detect the changes. Net Shoreline Movement (NSM) and End Point Rate (EPR) shows the maximum shoreline erosion rate at -23.3m/yr from EPR and -363.4m from NSM. It also shows maximum shoreline accretion rate at 1.5m/yr from EPR and 24m from NSM. The maximum accretion rate of 1.54m/yr over the shoreline changes of 24m distance from the shoreline in 2007 is majorly as a result of the sand mining activity within the study area while, the maximum erosion rate of -23.34m/yr over the shoreline changes of -363.3m is as a result of industrialization and urbanization along the coast.
NSM result of DSAS Analysis
Bar chart of NSM values
EPR result of DSAS Analysis
Bar chart of EPR values
