A Comprehensive Geological Study Using Bathymetry, Seafloor Images and Sediment Analysis of Wangdol-cho(Wangdol Reef) Area in the East Sea(the Sea of Japan)

Abstract

We analyze precise bathymetry, seafloor images and grain size analysis for understanding seafloor characteristics and classifying sediment type around Wangdol-cho in the East Sea(the Sea of Japan).For this study, we conducted a bathymetry survey using multibeam echosounder system around Wangdol-cho in Nov. 2011. Since the area near the light beacon of Wangdol-cho has very shallow water depth range, the research vessel(R/V Eardo) couldn’t conduct the bathymetry survey in this area. And we carried out the sediment sampling survey about this study area for analyzing more detailed sediment type and a comparative study of seafloor images around Wangdol-cho in Oct. 2012. survey using multibeam echosounder system around Wangdol-cho in Nov. 2011. Since the area near the light beacon of Wangdol-cho has very shallow water depth range, the research vessel(R/V Eardo) couldn’t conduct the bathymetry survey in this area. And we carried out the sediment sampling survey about this study area for analyzing more detailed sediment type and a comparative study of seafloor images around Wangdol-cho in Oct. 2012.