マルチビーム音響測深機で得られた海底地形とDEMの統合データを用いた海底地形イメージング─日本海を例にして─

抄録

We have been imaging the seafloor topography using the integration of bathymetric data obtained by multi-narrow beam echo sounder and DEM (Digital Elevation Model) data. The seafloor topography imaging shows not only the large-scale topographical features, but also small-scale features. In the case of the Japan Sea, the imaging indicates that the topographic highs such as seamounts are distributed in the basin area, and that the general trend of the seafloor topography is different at each area. These features of the seafloor topography are useful for understanding the formation process and distribution of active faults and folds in the Japan Sea.