内浦湾の冬季の海面変動に関する統計的特性について-II : 非定常性の観点からみた海面変動のスペクトル密度関数に関する統計的推測

概要

論文の詳細を見る
In this paper, we are concerned with the problem on estimating and forecasting the spectral density function of the sea surface oscillation, which generates in Uchiura (Funka) Bay, Hokkaido. Our previous statistical researches have been concluded that the sea surface oscillation in winter should be treated by taking the possibility of nonstationarity into consideration. It may suggest that some of well-known statistical methods for estimating the spectral density function of the sea surface oscillation, such as the methods of FFT (Fast Fourier Transform), Blackman-Tukey and Periodgram, do not necessarily give reasonable estimates of the spectral density. This paper proposes a statistical method for estimating and forecasting the above spectral density function based on nonstationarity. The application of the proposed method to the sea surface oscillation has been shown their effectiveness on the forecasting comparing with the numerical results.
社団法人日本航海学会の論文
2000-03-25