Long-term coastal erosion assessment along the coast of Karnataka, west coast of India

摘要: Abstract Coastal areas are always under frequent threat from various natural processes and man-induced activities. erosion is recognized as the permanent loss of land along shoreline resulting in transformation coast. The current study focuses on long-term coastal analysis entire Karnataka coast using Remote Sensing, Geographical Information System (GIS), Linear Regression Rate (LRR), End Point (EPR) techniques. Analysis 26 (1990 to 2016) years Landsat images by use Digital Shoreline (DSAS) tool has been done. results show a high rate at Ullal during this period (LRR -1.3 m/yr) accretion Devbagh 3.2 m/yr). southern faces severe especially Ullal, where settlement high. At Thanirbhavi, Mukka, Kota, Om Beaches also noticed. Both anthropogenic activities like ports, seawalls, breakwaters, etc. long shore drift, seasonal variation, factors affecting change