Sediments and Structures
Most of fishing ports in Hokkaido, Japan are located in the surf zone on the sandy beach. As a result, channel sedimentation has become a serious problem in many fishing ports. However, the effect as expected is not obtained on channel sedimentation at fishing ports in Hokkaido. To solve such a problem, it is necessary to understand the relationships between channel sedimentation and external force, and be able to reveal the developmental process of channel sedimentation. Then, field observation and theoretical approach (wave-to-wave analysis, spectral analysis, EOF analysis, et al) become important tools.