ESTIMATION OF PERSISTENCE STATISTICS OF THE WAVES OBSERVED ON JAPANESE COAST IN THE LIGHT OF RECENT STUDIES

Abstract

The NMI method proposed by Kuwashima and Hogben (1986) for estimating the wave persistence statistics and Mathiesen's Model (1994) which was expected to develop the NMI method were applied to the wave data observed at four sites at Japanese coast to investigate the validity of the models. Mathiesen's model was found not to be superior to NMI method. We show the modification of the NMI parameters based on the data improve the accuracy of the estimated persistence statistics.