Migration of Coastal Erosional Hotspots due to Coastal Protection Structures

Abstract

ABSTRACT Choi, K. H. and Kim, J. S. and Lee, J.C., 2016. Migration of coastal erosional hotspots due to coastal protection structures. In: Vila-Concejo, A.; Bruce, E.; Kennedy, D.M., and McCarroll, R.J. (eds.), Proceedings of the 14th International Coastal Symposium (Sydney, Australia). Journal of Coastal Research, Special Issue, No. 75, pp. 1062 - 1066. Coconut Creek (Florida), ISSN 0749-0208. Measures to protect coasts with artificial structures have recently become popular for beach management, notably in the east coast of South Korea. In many cases, however, some structures induced unwanted effects on adjacent beaches. Yet local governments continue to build these kinds of structures to solve erosion problems. In this study, coastline changes due to such construction were investigated by comparing historical aerial photographs, taking two beaches (Gusan-Wolsong coast and Osan-Yeongsin coast) as examples. In these two beaches, submerged artificial breakwaters and groins were constructed to reduce erosi...