Uncertainty of wave-induced response of marine structures due to long-term variation of extratropical wave conditions

Wave conditions in extratropical regions have seasonal variations. The wave condition in a period of one or more years exhibits variation, as displayed by samples of data for such a period. It is important to have a measure of the variability in the wave-induced extreme response and fatigue damage for marine structures due to this statistical uncertainty for sea states in various service periods. For instance, this variability needs to be …