1Morphodynamique Continentale et Côtière UMR6143, CNRS,
Normandie Univ, UNICAEN, 14000 Caen, France
2Nizhny Novgorod State Technical University n.a. R.E. Alekseev, 24
Minin Str., Nizhny Novgorod 603950, Russia
3Institute of Applied Physics, 46 Uljanov Str., Nizhny Novgorod 603950,
4National Research University, Higher School of Economics, Nizhny
Novgorod 603950, Russia
5Marine Systems Institute at Tallinn University of Technology,
Akadeemia tee 15A, 12618 Tallinn, Estonia
Received: 24 Oct 2016 – Discussion started: 02 Nov 2016
Abstract. Parametric excitation of edge waves with a frequency 2 times less than the frequency of surface waves propagating perpendicular to the inclined bottom is investigated in laboratory experiments. The domain of instability on the plane of surface wave parameters (amplitude–frequency) is found. The subcritical instability is observed in the system of parametrically excited edge waves. It is shown that breaking of surface waves initiates turbulent effects and can suppress the parametric generation of edge waves.
Revised: 19 Feb 2017 – Accepted: 27 Feb 2017 – Published: 28 Mar 2017
Abcha, N., Zhang, T., Ezersky, A., Pelinovsky, E., and Didenkulova, I.: Subharmonic resonant excitation of edge waves by breaking surface waves, Nonlin. Processes Geophys., 24, 157-165, doi:10.5194/npg-24-157-2017, 2017.