H

Word -> "Mot"	Symbol	Unity	Definition
Harmonic swell -> "Houle harmonique"			Defined by its direction of propagation, its amplitude and its period.
Higher high water -> "Plus haut "Niveau de marée haute""	HHW		The highest of the "Highest astronomical tide" levels of a tidal oscillation.
Higher low water -> "Plus haut "Niveau de marée basse""	HLW		The highest of the "Low water" levels of a tidal oscillation.
Highest astronomical tide -> "Niveau de plus haute marée"	HAT		The highest tide level over the duration of "Tide periodicity".
High water -> "Niveau de marée haute"	HW		The maximum height reached by a tide over a tidal oscillation. It corresponds to the crest of the "Tidal wave".
Hindcast -> "Simulation rétrospective"			Computation of a field of "Sea state" with, as input, wind fields prior to the date considered.
Huyghens principle -> "Principe d' Huyghens"			Principle after which each point of a wave can be considered as a wave-generating source. See also "Diffraction".