The Degree (D) value has an almost linear dependence on the square root of the average wave Height (H) above, i.e., . Using linear regression on the table above, the coefficients can be calculated for the low Height values () and for the high Height values ().
The Degree (D) value is closely correlated with the square root of the average wave Height (H) above, i.e., . By applying linear regression to the data in the table, we can calculate the coefficients for the lower Height values () and for the higher Height values ().