津波・高波(1)

[II-76] Analysis on river-runup in Takogawa River at invasion by Tsunami of 1983 Centaral Japan Sea Earthquake

〇Junya Taniguchi¹, Naoyuki Hayashi¹, Kazuya Watanabe², Noritoshi Saito², Takanobu Kamataki³, Hitoshi Tanaka⁴ (1.Akita University Faculty of Engineering Science, 2.Akita University Graduate School of Engineering Science, 3.Akita University Regional Innovation Center, 4.Tohoku University Graduate School of Engineering)

Keywords:Numerical simulation, River-runup of tsunami, Akita prefecture, Central Japan Sea Earthquake, Sensitivity analysis

In the Pacific coast of Tohoku Earthquake, Inland were damaged by tsunami since it ran up and banks were overflowed so measures are needed. However, there are not many data of tsunami in Japan Sea so measures were not conducted. Therefore, numerical simulations using data of Central Japan Sea Earthquake were performed with Takogawa River in Akita and invaded area were compared with actual area. As a result, invaded area matched with actual area and it was found that inland was invaded directly. Moreover, simulation was performed with different wave profile. Then, it was found that invaded area on actual profile mostly matched comparing with different profiles.