Spatiotemporal Shoreline Change Analysis in the Downstream Area of Cisadane Watershed since 1972

Abstract

Identifying shoreline changes in coastal areas is significant in order to achieve success in coastal management and planning. Understanding the shoreline changes and the driving factors can be an essential reference in developing appropriate preventive measures. This study analyzed changes in shoreline on the downstream area of Cisadane Watershed by utilizing multispectral Landsat Satellite Imagery from 1972 until 2019. The results of this study indicate that in the downstream region of the Cisadane River, there has been significant accretion. That can be caused by the Cisadane River carrying a lot of material, which then settles and forms new land. In other places, however, along the coast of the Cisadane watershed, abrasion generally occurs in residents' ponds areas, such as Kramat Village and Lemo Village, causing community losses. Abrasion in this area occurred due to ocean waves, sea-level rise, and the lack of mangrove areas.