SINGULARITY OF WIND AND WAVES ON THE JAPANESE COASTS

Abstract

 Singularity is a day on which a particular weather phenomenon is more likely to appear than before and after. For example, singularity of strong wind is empirically known. If there is singularity of the wind, there must also be singularity of the waves generated by the wind. If the characteristics of singularity of the waves becomes clear, it will be useful information in setting up a large port construction process. In this study, wind and waves were focused on and existence of singularity of them was examined. As a result, what was known empirically as singularity of strong winds and weak winds was confirmed with observed data. On the Sea of Japan side, singularity of the high wave corresponds to that of the strong wind, but not necessarily on the Pacific side. Singularity of low waves corresponds to that of weak winds in both sea areas. Regarding the waveform gradient, the singularity of high(low) wave corresponds to that of large(small) waveform gradient.