2021 Volume 77 Issue 2 Pages I_313-I_318
We collected data on drift ice (Sea of Okhotsk, total drift ice area; Abashiri Coast, total ice cover), waves (Monbetsu NOWPHAS), and shoreline positions along the Okhotsk coast, and conducted a preliminary study on the effect of drift ice on shoreline variation. The shoreline position of the sandy beach of Kitami coast (about 140 km long) at every 10 m was read from satellite images taken during 1990-2020. The relationship between the total ice cover and the significant wave height along the Abashiri Coast indicates that the ice floes suppress the waves reaching the coast. The shoreline position of the target area tended to move forward in general. The relationship between the amount of ice and the shoreline variation suggests that the shoreline position may have shifted landward in the years when the amount of ice was low.
