Abstract
In the coast of Suruga coast, coastal erosion is in progress around left bank of the Ooigawa River. In order to preserve the shoreline from the erosion, sand bypass method is conducted together with maintenance of shore protection facilities. An existing research (Sato et al, 1999) indicates that coastal erosion is progressive during tranquil period and sedimentation is progressive during high wave period in southward of an experimental jetty (alongshore drift to lower part) after the construction in 1992. It is mentioned that displacement of steep bottom topography affects such a complex wave characteristics in this area. This paper is to analyzea relationship between wave characteristics and coastal change in order to clarify complexity of sediment transportation around an experimentajle tty located at the coast of Suruga coast.