Processing MBES Data to Detect Changes to Seafloor Topography

Abstract

Performing precision monitoring for changes to seafloor topography is necessary to accurately examine the state of accidents of all sorts on the coast. Thus, this study proposed a new change detection technique to monitor changes to seafloor topography by systemizing the postprocessing technique for MBES sounding data and 3D modeling technique. This study also applied the proposed technique to a research area, monitored and analyzed changes to seafloor topography, and observed topographical changes at 13 points with the area of changes accounting for about 3.1% of the total area (4484.57 ㎡).