Environment: Data for Gaussian swell spectrum

The Gaussian swell spectrum is typically used to model long period swell seas.

H_s, f_m, T_p and $\sigma$

The Gaussian swell spectrum is specified by $\Hs$, one of the linked parameters $\{\fm,\Tp\}$, and $\sigma$. The $\fm\text{ and }\Tp$ data items are linked by the relationship $\fm=1/\Tp$. If you enter one, the other will be updated accordingly.