Abstract
It is important to understand the wave characteristics in a Japanese coast in relation to global warming and so on. Ocean waves in Japanese coast have been observed routinely since the 1970's by NOWPHAS (Nationwide Ocean Wave information network for Ports and Harbors), and those wave data for a long term are useful to examine wave characteristics in Japanese coast. However, those wave data are not necessarily observed under the same condition during the observation.
This study examined wave characteristics in the Japanese coast based on long-term wave estimations by 3rd generation wave model WAM. As a result, remarkable secular variation of yearly average of waves was not able to be confirmed.
