Reuse of simulation outputs for tsunami hazard information maps

Abstract

Hydrographic and Oceanographic Department, Japan Coast Guard produces tsunami hazard information maps for the people who are in charge of disaster mitigation at the important ports in Japan. These maps consist of three outputs: 1. tsunami inflow and outflow maps, 2. time series of the maximum tsunami height, current direction and velocity at the prescribed positions, and 3. tsunami animation. Since the number of the positions with time series data was limited, these data at much more positions were required. Hydrographic and Oceanographic Department of 5th Regional Coast Guard Headquaters has developed a new system to obtain time series data at the optional positions promptly by reusing snapshot data for the tsunami animation.