=+51. The article “On Assessing the Accuracy of Offshore Wind Turbine Reliability-Based Design Loads from the Environmental Contour Method” (Intl. J. of Offshore and Polar Engr., 2005: 132–140) proposes the Weibull distribution with  5 1.817 and  5 .863 as a model for 1-hour significant wave height (m) at a certain site.