The OMG team is also building a profile of the seafloor around the island in order to better model how warm, deep ocean water might flow into those fjords and reach the glacier edges – in this part of the North Atlantic, the warmest water is actually in the deepest parts of the sea, below waters that are cooled by cold Arctic airand winds.
Probability distribution for shear strengths of seafloor sediment is investigated in order to apply one of the probability distributions to a reliability based design for the development of a tracked vehicle of deepsea manganese nodule miner.
On the seafloor topography map (Fig. 1), the seafloor lineament looks roughly continuous over the segments B and C. In order to verify the continuity of the seafloor lineament along the strike, we have calculated the seafloor slope angle from the swath-bathymetry data.
It expresses conductivity using volumetric averaging in order to describe seafloor topography and uses improved interpolation methods to calculate MT responses at arbitrary points.
In order to detect seafloor movements with an accuracy of a few centimeters, GPS-acoustic combination technique has been developed (e.g., Spiess et al. 1998; Asada and Yabuki, 2001).
In order to monitor seafloor crustal movements around the offshore plate boundary, the Hydrographic and Oceanographic Department of Japan (JHOD) has been carrying out seafloor geodetic observations using a GPS-acoustic combination technique on the landward side of the major trenches around Japan.
Any large-scale operation for mining seafloor sediments would have to be continuous in order to be efficient, and the hydraulic dredge could be a solution to this challenge.
In order to expand the seafloor geodetic observation network to this blank region and interpolate other blank regions, nine new seafloor sites were deployed in addition to the six existing sites after November 2011.
In order to improve the modeled seafloor deformation, we incorporated a thin weak layer (LAB) below the subducting Pacific plate.
A simple parameterization of the loading deformation of the seafloor is incorporated into a tsunami simulation model in order to realistically calculate tsunami travel time, especially at regions far from the source.
