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http://dx.doi.org/10.9719/EEG.2014.47.5.533

Detailed Bathymetry and Seabed Characteristics of Wangdol-cho, Hupo Bank in the East Sea  

Kim, Chang Hwan (Dokdo Research Center, East Sea Research Institute, Korea Institute Of Ocean Science & Technology)
Park, Chan Hong (Marine Environments & Conservation Research Division, Korea Institute Of Ocean Science & Technology)
Publication Information
Economic and Environmental Geology / v.47, no.5, 2014 , pp. 533-540 More about this Journal
Abstract
The Wangdol-cho area, in the Hupo Bank, plays a very important role in main fishing grounds, leisure tourism and marine environmental researches of the East Sea. We analyzed the detailed bathymetry and classified the seabed characteristics of the Wangdol-cho area, based on seafloor backscattering images and sediment grain size. The Hupo Bank is developed in parallel with the eastern coastal line of Korean peninsula, and the shallowest area (Wangdol-cho) of the Hupo Bank is located along the eastern part of Hupo Port. The Wangdol-cho comprises three summits; north summit, middle summit, and south summit. The middle summit area among the three summits has the most shallow water depth with minimum about 6 m. The north summit shows about 8 m minimum depth and the south summit about 9 m. The bathymetry data around three summits represent undulating seabeds with many scattered underwater reefs and shallow water depth. The area between the underwater reefs, the flat seafloor in the northeastern part of the survey site, and the western steep slope area have relatively coarse sediments such as sandy gravel and gravelly sand. The bathymetry in the western side of the Wangdol-cho shows steep slope seabed, extending to the Hupo Basin. Fine sediments including mud and silty sand occur in the Hupo Basin area of the survey site. The submarine detailed topography and the analysis of the seafloor characteristics of the survey area are expected to contribute to management for marine environmental researches and sustainable use of ecosystems in the Wangdol-cho.
Keywords
Hupo Bank; Wangdol-cho; detailed bathymetry; seafloor backscattering images; seabed characteristics;
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