A Fast Forecasting System for Typhoon-Generated Waves

Abstract

This study presents an efficient operational model that can be used by civil defence agencies for real-time prediction and fast warnings on typhoon-generated wind wave and storm surge. The wind waves are simulated by the hyperbolic wave model of the mild-slope equation type, instead of using wave models such as WAM or SWAN, which are most widely used in the world. A new concept of wave length modulation is used to apply the MSE model of phase-resolving type to broader ocean areas. The results show reasonable agreement with the wind waves recorded by Pacific Hawaii Island buoy data for Hurricane Iniki (1992) and at the Korean coasts during Typhoon Nabi (2005).