Pierson-Moskowitz - Peak Period vs Wind

Peak spectral period T_p of the Pierson-Moskowitz fully-developed sea given 19.5 m wind speed - the fundamental fully-developed-sea relationship.

PMWaveSpectrum

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Formula, assumptions, and limits

T_p = 7.14\,U_{19.5}/g, \quad H_s = 0.21\,U_{19.5}^2/g

Symbol	Meaning	Unit
$U_{19.5}$	Wind speed at 19.5 m above sea	m/s
$g$	Gravitational acceleration	m/s²

Source: Pierson W.J. & Moskowitz L. - JGR 1964

Peak spectral period T_p of the Pierson-Moskowitz fully-developed sea given 19.