The importance of determining the future position of shoreline: The case study of G？ksu Delta, Mersin (Turkey)

Defining the coastline changes in coastal zones is extremely important in terms of taking and implementing scientific, political and legal decisions. In this study, modelling of the future shoreline position of G？ksu delta was aimed. For this purpose, the shoreline change values of the G？ksu Delta belong to 1984-2017 years was evaluated by using Net Shoreline Movement (NSM) statistic of Digital Shoreline Analysis Tool (DSAS). Then, the future shoreline position of G？ksu Delta 25 and 50 years later were calculated. In conclusion, it was ascertained that there will be 114 m rate of shoreline regression in erosion dominated areas while the rate of shoreline progress in accumulation dominated areas will be 119 m 25 years later. On the other hand, the rate of shoreline regression in erosion dominated areas will be 223 m whereas there will be 236 m rate of shoreline progress in accumulation dominated areas 50 years later