Calculate ocean wave length from wave period from return period data for Airy, Stokes, and cnoidal waves.
The wave period and wave height are calculated using either the Weibull, Gumbel or Frechet distributions. Wave phase angle can be defined from angle Θ, displacement x or ± time t (Θ = 360 (x - c t) / L). Use the Result Plot option to plot the Airy, Stokes and cnoidal wave profiles.
Enter data values as sets of three values separated by a comma (R, H, T), with each data set on a new line. The regression output is tabled at the bottom of the page.
Tool Input
- sptype : Wave Sample Period
- Su : User Defined Wave Sample Period
- offtype : Probability Function Parameter Type
- Hou : User Defined Minimum Wave Height
- Tou : User Defined Minimum Wave Period
- rtype : Linear Regression Type
- wavetype : Wave Type
- phasetype : Phase Angle Type
- Θu : User Defined Phase Angle
- x : User Defined Displacement
- t : User Defined Time
- ztype : Design Elevation Above Seabed Type
- Zu : User Defined Elevation
- Rdata : Return Period Data
- Hdata : Wave Height Data
- Tdata : Wave Period Data
- R : Design Return Period
- d : Water Depth
Tool Output
- Θ : Wave Phase Angle
- η : Wave Surface Relative To Mean Sea Level
- Ah : Wave Horizontal Acceleration
- Am : Wave Acceleration Magnitude
- Av : Wave Vertical Acceleration
- Ho : Minimum Wave Height
- Hsm : Mean Wave Height
- Hw : Wave Height
- L : Wave Length
- S : Sample Period
- To : Minimum Wave Period
- Tpm : Mean Wave Period
- Tw : Wave Period
- Vh : Wave Horizontal Velocity
- Vm : Wave Velocity Magnitude
- Vv : Wave Vertical Velocity
- Z : Design Elevation Above Seabed
- Zs : Wave Surface Height Above Seabed
- Zw : Wave Trough Height Above Seabed
- c : Wave Celerity
- cvg : Convergence Factor