STUDY ON SHORELINE CHANGE AND BEACH USE OF MAIN ISLANDS IN INDONESIA BY USING SATELLITE IMAGE

Abstract

 A new method for easy and automatic detecting shoreline changes was proposed using Landsat satellite image. The accuracy of detecting shoreline was analyzed by comparing to high-resolution satellite images. Indonesia is the largest island country which consists of many large and small islands. There have been no cases of quantitative evaluation of long-term shoreline changes until now. Therefore, this method was applied to major islands in Indonesia to identify long-term shoreline. A macro and quantitative risk assessment of coastal erosion based on beach use was carried out and it is found that the results showed that the risk of northern coast of Java was highest in Indonesia.