Verification of conversion formulas for computing representative wave heights

This study is undertaken to find out suitable conversion formulas for computing representative wave heights (i.e. mean, significant, highest one-tenth, and maximum wave heights) from the known commonly used parameters (i.e. root mean square wave height, water depth, spectral peak period, and beach slope). Seventeen sets of conversion formulas (including existing and modified formulas) are recalibrated and their accuracy is compared. A large amount and wide range of experimental conditions from small-scale, large-scale, and field experiments (2619 cases collected from 10 sources) are used to calibrate and verify the conversion formulas. The examination shows that most of the selected formulas give very good predictions and have similar accuracy. The suitable formulas are recommended based on the consideration of accuracy and simplicity of the formulas.