Advanced wave modeling, including wave-current interaction.

The paper outlines principles of phase-resolving and phase-average wave models, with emphasis on the state of the art of wave-current interaction physics.We argue that these interactions are the least well-developed part of such models. Linear and nonlinear dynamics ofwaves on currents are discussed; depth-integrated and depth-varying approaches are described. Finally, examples of numerical model performance for waves on currents in realistic oceanic scenarios are presented. [ABSTRACT FROM AUTHOR]