Estuarine shoreline change analysis along The Ennore river mouth, south east coast of India, using digital shoreline analysis system

Abstract

Ennore river mouth is the largest estuary and it's located in Thiruvallur, Tamil Nadu, southeastern part of India. The creek covers an area of 2.25 km2 where located 20 km north of the city centre and 2.6 km south of the Ennore port. The studies are carried out using remote sensing and Geospatial technologies. The Landsat images acquired from 2013 to 2016 were used to demarcate the rate of shoreline dynamics using GIS – based digital shoreline analysis system. The succeeding short term river mouth dynamics, coastal erosion, and accretion rates have been considered for the years 2013–2016. The statistical analysis such as linear regression and end point rate were determined from the shoreline layers. The physical parameters are played the main role in the dynamic activities of erosion and accretion. The study area shows during last four years (2013–2016) erosion are more than the accretion of the shoreline occurred over the years. Keywords: River mouth changes, Erosion, Accretion, DSAS, Ennore estuary