Analisis Perubahan Garis Pantai di Lokasi Wisata Kecamatan Pantai Cermin Kabupaten Serdang Bedagai

Abstract

Changes in coastal areas are influenced not only by natural factors but also by human activities in the vicinity. Pantai Cermin Subdistrict is utilized as a tourist destination, which results in increased pressure on the coastal area due to growing human activities within it. This has caused environmental damage to the coastal area in the form of shoreline changes. This study aims to analyze the shoreline changes at the tourist location of Pantai Cermin Subdistrict, Serdang Bedagai Regency, using Sentinel-2 satellite imagery over a 5-year period, namely 2017 and 2022, through remote sensing techniques. The analysis of shoreline changes was conducted using the Digital Shoreline Analysis System (DSAS) available in the ArcGIS software. The research findings showed an abrasion of 6,16 hectares and an accretion of 41,01 hectares. Land cover change maps and vegetation density maps were used to determine the relationship between land cover changes, vegetation density, and shoreline changes. The analysis results revealed a complex relationship between shoreline changes, land cover, and vegetation density. Land cover can influence the speed and intensity of erosion and accretion processes in coastal areas, ultimately leading to shoreline changes. Coastal areas with dense vegetation cover have the ability to retain sediment and protect the shoreline from erosion compared to areas with limited and less dense vegetation cover.