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Nonlinear Processes in Geophysics An interactive open-access journal of the European Geosciences Union

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doi:10.5194/npg-2016-63
© Author(s) 2016. This work is distributed
under the Creative Commons Attribution 3.0 License.
Research article
02 Nov 2016
Review status
A revision of this discussion paper was accepted for the journal Nonlinear Processes in Geophysics (NPG) and is expected to appear here in due course.
Subharmonic resonant excitation of edge waves by breaking surface waves
Nizar Abcha1, Tonglei Zhang1, Alexander Ezersky1, Efim Pelinovsky2,3,4, and Ira Didenkulova2,5 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, Russia
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
Abstract. Parametric excitation of edge waves with a frequency two 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.

Citation: Abcha, N., Zhang, T., Ezersky, A., Pelinovsky, E., and Didenkulova, I.: Subharmonic resonant excitation of edge waves by breaking surface waves, Nonlin. Processes Geophys. Discuss., doi:10.5194/npg-2016-63, in review, 2016.
Nizar Abcha et al.
Interactive discussionStatus: closed
AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment
Printer-friendly Version - Printer-friendly version      Supplement - Supplement
 
RC1: 'period doubling bifurcation', Anonymous Referee #1, 16 Nov 2016 Printer-friendly Version 
AC2: 'Reply to referee N°1', NIZAR ABCHA, 21 Dec 2016 Printer-friendly Version Supplement 
AC3: 'Reply to referee N°1', NIZAR ABCHA, 21 Dec 2016 Printer-friendly Version Supplement 
 
RC2: 'Excitation of edge wave', Anonymous Referee #2, 08 Dec 2016 Printer-friendly Version Supplement 
AC1: 'Reply to referee N°2', NIZAR ABCHA, 14 Dec 2016 Printer-friendly Version Supplement 
Nizar Abcha et al.
Nizar Abcha et al.

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Short summary
Parametric excitation of edge waves with a frequency two 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.
Parametric excitation of edge waves with a frequency two times less than the frequency of...
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