Abstract
　This paper presents a spectral wave prediction model, based on the radiative transtfer equation, in which a personal computer can be utilized in the numerical computation. For the purpose of saving processing time and capacity of memory the model is formulated as a decoupled propagation model for deep water waves, which traces propagation and growth or decay of each component wave separately. A method estimating directional spectra at a fixed location through the computation of each component wave along a straight wave ray reaching the location is adopted in the numerical integration of the equation. Hindcasting for wave data observed at several locations around the Japnese coast during many typhoons in recent years is attempted and the applicability is confirmed from the comparison between the hindcasted and observed results for significant wave height and fiequency spectrum.

【キーワード】：海岸災害, 波浪推算モデル, パソコン, 台風

*愛媛大学工学部海洋工学科
Department or Ocean Engineering, Faculty of Engineering, Ehime Univ.
*愛媛大学大学院工学研究科
Craduate Course or Ocean Engineering, Ehime Univ.