Beach slope

$0\mathrm{.}1$

$($V:H$)$

Annual average of significant wave height, $\frac{?}{\text{b}\text{a}\text{r}}(H_s),6\mathrm{.}1m$

Annual standard deviation of significant wave height, ${}_s$

$0\mathrm{.}4m$

Offshore $($deep$)$ storm wave height Weibull parameter, $$

$1\mathrm{.}24$

Offshore $($deep$)$ storm wave height Weibull

$1\mathrm{.}22$

parameter, A

m

Offshore $($deep$)$ storm wave height Weibull

$1\mathrm{.}17$

parameter, B

m

Number of storms with Offshore $($deep$)$ Hs$>1\mathrm{.}5$ m during $20$ years

$1546$

The waves for design are expected to have a period of $15s$ and coming with an angle of $30$ degrees with respect to the vector perpendicular to the shoreline.

As a first step, determine the deep water wave whose wave height has a return period of $80$ years. Use the Weibull distribution parameters and storm occurrence rate from the table.