陸奥湾の風況・海況：局地的強風と波浪応答

抄録

Wave development in Mutsu Bay is simulated by using high-resolution wind fields derived from synthetic aperture radars to investigate the steady state response of waves under the strong winds. This study conducts two case studies for the westerly and easterly wind cases. In Mutsu Bay, westerly or easterly winds dominate and the strong winds often occur with an increase in speed in downwind direction. Waves develop along the direction of the strong winds. Compared with the results derived from the wind fields with constant wind speeds, the wave development derived from the finely resolved wind fields exhibits more rapid growth of wave with distance and more localized distribution of high waves. Thus, even in the semi-enclosed bay, wind speed and significant wave height can exceed representative limiting conditions for offshore construction and operation due to the locally strong winds.