Abstract
We present experimental and numerical analysis of nonlinear processes responsible for generating infragravity waves
 in the nearshore. We provide new experimental data on random wave propagation and associated velocity profiles in
 the shoaling and surf zones of a very mild slope beach. We analyze low frequency wave generation mechanisms and
 dynamics along the beach and examine in detail the ability of the fully nonlinear Boussinesq- type model SERR1D
 (Cienfuegos et al., 2010) to reproduce the complex dynamics of high frequency wave propagation and energy transfer
 mechanisms that enhance infragravity wave generation in the laboratory.
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