... ABSTRACT Three surveys of an 8km long subsea pipeline laid on a soft clay seabed were performed using side scan sonar profiler. The free span characteristics over the field surveys were examined and compared with the conventional free span design criteria. The comparison results indicate some...

... around the Ishikari coast. In this case, we used the on-line database of the newspaper article about the accident at Ishikari coast. As the result, we comprehended the feature of the accident in Ishikari Bay. Secondary, we made a field survey at Ishikari-hama beach in July 2017. This beach has cusp...

... and weather. And furthermore, this study simulates the tidal flow and wind-driven flow. Ultimately, this study tries to know the flow mechanism of this region. Firstly, this study performed the field survey and got the information about the feature of the current, topography, the tidal level and the wind...

... IMFORMATION (1) FIELD SURVEY This study conducted field survey to obtain the topography of the field on 4th July 2014, 29th August 2014 and 14th January 2015. The survey on 29th August was made with the Japan Society of Water Rescue and Survival Research jointly. Figure-3 Compare with Significant Wave...

... Abstract This study tried to comprehend the generation mechanism of the rip current at the enclosed beach by the groins. Firstly, this study did field survey and comprehended the large scale and velocity of the rip current. In this method, the rip current was pigmented by the sea water...

... measures that emphasize reducing pollutant loads from land to appropriately control water quality in Osaka Bay. nutrient transport concentration bottom layer organic matter upstream oil & gas salinity water quality observation period kuroshio pacific ocean kitan strait field survey...

.... At Imwon, a tsunami hazard map will then be developed based on the numerical predictions and field survey of historical tsunami events. INTRODUCTION Tsunamis are long-period oceanic waves generated by underwater earthquakes, submarine or subaerial landslides or volcanic eruptions. They are among...

... as well as the floating jetties were broken. A field survey was conducted to study on the detail of harbor damages and to mitigate the hazard due to the cyclone. In the paper, the results found in the urgent survey were indicated. INTRODUCTION Cyclone NARGIS was generated at the north of Indian Ocean...

... The coastal area at the head of Osaka Bay, which is highly urbanized, has been developed into an enclosed area with complicated artificial islands and breakwaters. In order to clarify the processes of anoxic water in this enclosed area, field surveys were done to measure currents inside...

... grids has been developed to estimate the wave overflow of seawalls. The model is called MARS-model (Multi Advection Reconstruction Solver) and it has been already applied to the tsunami inundation in Tokyo Bay, Japan and tsunami run-up analysis in Papua New Guinea coasts. A field survey of storm surge...

... ABSTRACT It has been recognized that water pollution in the Seto Inland Sea which includes Osaka Bay, Japan, is caused by a large quantity of nutrients loading from rivers. However, the recent field surveys have revealed that some nutrients are transported through Kii Channel from the Pacific...

... observation. The numerical estimation and field survey demonstrated that the coastal houses were damaged when the overtopping rate became greater than 0.1m 3 /m/s. INTRODUCTION Typhoon 9918 was generated in the eastern China Sea on September 23, 1999. Initially the typhoon proceeded slowly in north eastern...

... ABSTRACT Freezing mechanisms in ports are clarified by laboratory experiments, and the characteristics of ports in Hokkaido concerning the freezing conditions and freezing places are investigated based on the data of field surveys. The mechanisms of freezing in ports can be classified...