I

Word -> "Mot"	Symbol	Unity	Definition
Interferences -> "Interférences"			On the encountering of two wave groups, the energy and height of a resultant wave is the algebraic sum of the energies and heights of the incident waves.
Internal waves -> "Onde interne"			Undulation propagating along the submarine interface between layers of different density.
Irregular waves -> "Houle irrégulière"			Swell as a superposition of many wave systems having their own frequencies. It can be mono-directional or multi-directional. Defined by its "Energy spectrum" Concern the deep water and the "Stokes theories".