G

Word -> "Mot"	Symbol	Unity	Definition
Gravitational pull -> "Attraction gravitationnelle"			See "Wave generation", "Tidal wave".
Gravity waves -> "Ondes gravitaires"			Wave due to gravity in a medium.
Ground swell -> "Houle de fond"			"Shallow-water wave" issued from "Ocean swell".
Group repetition period -> "Période de répétition des groupes"	Tg	s	Period of the envelope of the wave train.
Group velocity -> "Vitesse de groupe"	cg	m/s	The speed at which the wave train advances. Half the speed of individual waves for "Wind waves" in infinite depth. The speed of a wave train energy.