ABSTRACT : For the purpose of attracting cruise ships to the northern part of Japan where they drop by relatively fewer times at the moment, this study, among 274 harbors and fishing ports in Hokkaido, identified the areas suitable for attracting cruise ships based on their “Attractiveness Level as Port of Call”. More specifically, “Attractiveness Level as Port of Call” was obtained by multiplying the two coefficients that had been evaluated respectively: One is “Attractiveness Level as Sightseeing Destination” representing the number of sightseeing spots around a port/harbor and the other is “Accessibility Level by Sea” indicating the advantage of a port/harbor in terms of its accessibility by sea while not easily accessed by land. Consequently, whereas the regions such as Hakodate and Otaru which have been frequently visited by cruise ships showed high values for “Attractiveness Level as Sightseeing Destination”, those like Nemuro and Shiretoko hardly called in by them achieved high values in “Accessibility Level by Sea”. As for “Attractiveness Level as Port of Call”, Esashi-cho and Matsumae-cho marked high values and, accordingly, such areas were evaluated as those suitable as a port of call for cruise ships.

ABSTRACT : In 2011, many hospitals were destroyed by the Great East Japan Earthquake, victims could not receive treatment within a reasonable timeframe. And then the concept of the floating medical support system had already been proposed in preparation for Catastrophic Earthquake. In this research aiming at realization of the floating medical support system, firstly the number of people who develop crush syndrome in the target area was estimated by GIS based on the damage prediction of the huge earthquake striking Tokyo and the risk of building collapse. Based on the distribution of dialysis treatment facilities and data such as road network data in Tokyo, Voronoi diagrams were created using GIS. And facility scale required for the floating medical support system and suitable installed site were examined by the distribution of crushed syndrome patients obtained by analysis and Voronoi diagram.

ABSTRACT: In recent years, the development of concrete aimed at environmental consideration is underway. For example, when concrete containing amino acids（AC） is submerged in water, activation of the primary production function of algae, the effect that aquatic organisms gather around AC are reported. In this study, we applied the amino acid effect, suggested an amino acid-containing coating film curing agent for concrete, and quantified the effect of primary production function. In the aquarium that continues to flow seawater, test blocks were sunk and algae were cultivated. In addition, the elution amount of amino acids from the test block was measured. As a result, when amino acids were mixed in the curing agent, about 3.9 times more algae flourished in the test block than when not mixing.

ABSTRACT : In autumn, fledglings of the Streaked Shearwater Calonectris leucomelas on Awashima Island, Niigata prefecture, are sometimes attracted to fishing lights and fall into fishing boats. In this study, we observed that fledglings that fall into boats suffer three types of damage: 1) transportation to fishing ports, 2) predation by domestic cats Felis catus at fishing ports, and 3) oiled feathers due to machine oil. To assess the effect of fishing lights on seabirds, it is necessary to carefully consider damages as well as their falling into the boats. To eliminate these effects, fishing boats could be configured so that it is difficult for birds to get under the floor. In addition, rescue activities could be conducted according to the Streaked Shearwater’s daily behavioral patterns (i.e., starting around sunset).

ABSTRACT : Typhoon JEBI in 2018 accompanied with the intensified central pressure of approximately 955 hPa generated flooding damage due to historical record-breaking storm surges observed in the wide coastal area of Osaka Bay. This report demonstrates field survey results of storm surge inundation depths along the west coast of Osaka Bay. In addition, the authors presents calculated results of time series of storm surge heights, spatial distributions of maximum inundation depths and maximum significant wave heights around the coast of Kobe city using a coupled model of surge and wave, SuWAT. As a result, the change tendency of time series of storm surge height at Kobe tidal station could be estimated. In addition, the inundation level can be approximately reproduced in the area where the measurement and calculation were both inundated. On the other hand, in the area where the inundation level and the ground level were close, only one of the measurement and calculation was inundated.