Tsunami Wave Hindcasting in the Japan Sea

Tsunami wave simulation is necessary in order to estimate wave at different points along the coast. There is a proposal to use the tsunami records at several points near the sources to estimate the wave generation function E(t) and to simulate the forecasting wave by getting the convolution of E(t) with pulse function of wave propagation P(t). For estimations of E(t) and P(t) it is proposed to use the sign method, which permits to calculate these values by using the tide gauges records. We calculate the Source function E(t) and pulse functions P(t) for two large scale earthquakes in the Japan Sea (Niigata, 1964 and Akita, 1983) in several points of Japan sea coasts. Using these results we have examined the quality of simulating by comparing the simulated waves with real record.