Coastline changes monitoring induced by man-made structures using synthetic aperture radar: A new simple approach

Abstract This study presents a new simple approach to detect the coastline changes due construction of man-made structures. The uses low-pass filter reduce speckles errors and Otsu thresholding method create binary image. Then, closing morphological operation was conducted improve In final step, canny edge detection is used for delineation. coastlines analysis done by using Digital Shoreline Analysis System (DSAS). general, processing steps this semi-automatic processes, it does not require manual digitization extract coastline. tested two independent synthetic aperture radar (SAR) satellite images, i.e., ALOS-1 Sentinel-1 SAR data. results show that produced better than other well-known methods. detects clearly structure its impact coastal zone, abrasion accretion. area located in Pengambengan Port, Jembrana Regency, Bali, Indonesia. addition, result can be as evaluation parameters future development port or re-design present