Publications

Real world ocean rogue waves explained without the modulational instability

Nov 02 2016

Authors: Francesco Fedele, Joseph Brennan, Sonia Ponce de León, John Dudley & Frédéric Dias

Ghost imaging in the time domain

Nov 02 2016

Authors: Piotr Ryczkowski, Margaux Barbier, Ari T. Friberg, John M. Dudley and Goëry Genty

Spatial Bayesian hierarchical modelling of extreme sea states

Nov 02 2016

Authors: Colm Clancy, John O’Sullivan, Conor Sweeney, Frédéric Dias, Andrew C.Parnell,

ThenonlinearSchrödingerequationandthe propagationofweaklynonlinearwavesin opticalfibersandonthewater

Nov 02 2016

Authors: A.Chabchoub, B.Kibler, C.Finot, G.Millot, M.Onorato, d,J.M.Dudley, A.V.Babanin

Rogue Waves of Light

Nov 02 2016

Authors: John M. Dudley, Miro Erkintalo, Goëry Genty

Caustics and Rogue Waves in an Optical Sea

Aug 18 2015

Authors: Amaury Mathis, Luc Froehly, Shanti Toenger, Frédéric Dias, Goëry Genty & John M. Dudley

NONLINEAR INTERACTIONS IN CROSSING SEA STATES

Jul 02 2015

Authors: Joseph Brennan, Frederic Dias

EVOLUTION OF THE EXTREME WAVE REGION IN THE NORTH ATLANTIC USING A 23 YEAR HINDCAST

Jul 02 2015

Authors: Sonia Ponce de Leon, Joao H. Bettencourt, Joseph Brennan, Frederic Dias

SPATIAL VARIABILITY OF EXTREME SEA STATES ON THE IRISH WEST COAST

Jul 02 2015

Authors: C. Clancy, V. Belissen, R. Tiron, S. Gallagher, F. Dias

LOCAL ANALYSIS OF WAVE FIELDS PRODUCED FROM HINDCASTED ROGUE WAVE SEA STATES

Jul 02 2015

Authors: Frederic Dias, Joseph Brennan, Sonia Ponce de Leon, Colm Clancy, John Dudley

Emergent rogue wave structures and statistics in spontaneous modulation instability

Jul 02 2015

Authors: Shanti Toenger, Thomas Godin, Cyril Billet, Frédéric Dias, Miro Erkintalo, Goëry Genty & John M. Dudley

Can small islands protect nearby coasts from tsunamis? An active experimental design approach

Nov 11 2014

Small islands in the vicinity of the mainland are widely believed to offer protection from wind and waves and thus coastal communities have been developed in mainland areas behind small islands. However, whether they offer protection from tsunamis is unclear.Recent post-tsunami survey data, supported by numerical simulations, reveal that the run-up on coastal areas behind small islands was significantly higher than on neighbouring locations not affected by the presence of the islands.

Science and Culture: Dissecting the Great Wave

Oct 10 2014

The Great Wave off Kanagawa, a 19th century woodcut by Japanese artist Hokusai, depicts oshiokuri-bune, or cargo boats, navigating a monstrously rough sea within sight of a snow-capped Mt. Fuji. The woodcut is among the best-knownworks of Japanese art, yet in the last few years scientists have argued that it suffers under an enduring misconception. The wave itself, featured on t-shirts, textbooks, and emoticons, is often described as a tsunami, a wave born of a powerful event—like an underwater volcano or earthquake—that traverses the deep sea with low amplitude and long wavelength but swells to destructive proportions in shallows near the shore.

Instabilities, breathers and rogue waves in optics

Oct 10 2014

Many physical systems exhibit behaviour associated with the emergence of high-amplitude events that occur with low probability but that have dramatic impact. Perhaps the most widely known examples of such processes are the giant oceanic ‘rogue waves’ that emerge unexpectedly from the sea with great destructive power1. There is general agreement that the physics behind the generation of giant waves is different from that of usual ocean waves, although there is a general consensus that one unique causative mechanism is unlikely. Indeed, oceanic rogue waves have been shown to arise in many different ways: from linear effects such as directional focusing or the random superposition of independent wave trains, to nonlinear effects associated with the growth of surface noise to form localized wave structures1,2.

Nonlinear optics of fibre event horizons

Oct 10 2014

The demonstration that an intense pulse propagating in an optical fibre can give rise to an artificial event horizon1 has attracted considerable attention with the possibility to produce laboratory white- or black-hole analogues1–10. This picture not only suggests interesting links with general relativity1,3,4,8,9, but the underlying dynamics have also been postulated to influence the formation of optical rogue waves7,11,12, and to allow for the realization of optical functionalities such as the all-optical transistor5.

Hydrodynamics of periodic breathers

Oct 10 2014

Rogue waves (RWs) from the object of myths, legends and seafarers tales are converted now into the subject of scientific studies [1]. Scientific measurements, collected from buoys, satellites and oil- and gas-platforms after the first measurement of the Draupner wave [2], confirmed the existence of extreme wave events in the world oceans. RWs are presently studied both theoretically and experimentally. The linear theories provide one possible explanation for appearance of RWs [3]. However, the nonlinear nature of ocean waves is now well established [4,5]. The nonlinearity is especially important in the description of high amplitude waves which is the main feature of RWs.

Hydro-acoustic precursors of gravity waves generated by surface pressure disturbances localised in s

Aug 14 2014

In this paper, we show that the generation of transient surface gravity waves by sudden, localised surface pressure perturbations is associated with the existence of underwater acoustic precursors directly coupled with the gravity waves. This result advances previous incompressible and compressible models of ocean surface waves.

Extreme waves induced by strong depth transitions: Fully nonlinear results

Jun 15 2014

Recent studies on free-surface gravity waves over uneven bathymetries have shown that “rogue” waves can be triggered by strong depth variations. This phenomenon is here studied by means of spectral simulations of the free-surface Euler equations.

Conditions for extreme wave runup on a vertical barrier by nonlinear dispersion

Jun 15 2014

The rump of strong nonlinear waves impinging on a vertical wall can exceed six times the far-field amplitude of the incoming waves. This outcome stems from a precursory evolution process in which the wave height undergoes stong amplification due to the combined action of nonlinear steeping and dispension resulting in the formation of nonlinear dispersive wave trains, i.e. undular bores. This part of the problem is first analysed seperately, with emphasis on the wave amplitude growth rate during the development of undular bores within evolving large-scale background.

Far-detuned mid-infrared frequency conversion via normal dispersion modulation instability

Mar 24 2014

Far-detuned mid-infrared frequency conversion via normal dispersion modulation instability in chalcogenide microwires

Linking Reduced Breaking Crest Speeds to Unsteady Nonlinear Water Wave Group Behavior

Mar 24 2014

Authors: M. L. Banner, X. Barthelemy, F. Fedele, M. Allis, A. Benetazzo, F. Dias, and W. L. Peirson

On the modelling of tsunami generation and tsunami inundation

Mar 03 2014

Authors: F. Dias, D. Dutykh, L. O’Brien, E. Renzi, T. Stefanakis

Incoherent resonant seeding of modulation instability in optical fiber

Dec 05 2013

Authors: Duc Minh Nguyen, Thomas Godin, Shanti Toenger, Yves Combes, Benjamin Wetzel, Thibaut Sylvestre, Jean-Marc Merolla, Laurent Larger, Goëry Genty, Frédéric Dias, and John M. Dudley

Ultrafast Single-Shot Measurements in Modulation Instability and Supercontinuum

Dec 05 2013

Thomas Godin, Benjamin Wetzel, John M. Dudley, Georg Herink, Frédéric Dias, Goëry Genty, Bahram Jalali, Claus Ropers, and Daniel R. Solli

Evolution of Random Wave Fields in the Water of Finite Depth

Sep 23 2013

Authors: Denys Dutykh

The conformal-mapping method for surface gravity waves in the presence of variable bathymetry

Sep 02 2013

Authors: Claudio Viotti, Denys Dutykh, Frédéric Dias

Numerical study of the generalised Klein-Gordon equations

Aug 20 2013

Authors: Denys Dutykh, Didier Clamond, Marx Chhay

Real time noise and wavelength correlations in octave-spanning supercontinuum generation

Jul 25 2013

Authors: T. Godin, B. Wetzel, T. Sylvestre, L. Larger, A. Kudlinski, A. Mussot, A. Ben Salem, M. Zghal, G. Genty, F. Dias, and J. M. Dudley

Some special solutions to the Hyperbolic NLS equation

Jul 23 2013

Authors: Laurent Vuillon, Denys Dutykh, Francesco Fedele

On the Galerkin / finite-element method for the Serre equations

Jun 18 2013

Authors: Dimitrios Mitsotakis, Ilan Boaz, Denys Dutykh

Numerical simulation of wave impact on a rigid wall using a two-phase compressible SPH method

Jun 11 2013

Authors: Ashkan Rafiee, Denys Dutykh, Frédéric Dias

Derivation of dissipative Boussinesq equations using the Dirichlet-to-Neumann operator approach

May 14 2013

Authors: Denys Dutykh, Olivier Goubet

Extreme wave events in Ireland

Mar 12 2013

Authors: Laura O'Brien, John Dudley and Frederic Dias

Extreme wave run-up on a vertical cliff

Mar 12 2013

Authors: F. Carbone, D. Dutykh, J. Dudley, F. Dias

The emergence of coherent wave groups in deep-water random sea

Mar 04 2013

Authors: Claudio Viotti, Denys Dutykh, John M. Dudley, Frédéric Dias

Efficient computation of steady solitary gravity waves

Feb 12 2013

Authors: Denys Dutykh, Didier Clamond

Run-up amplification of transient long waves

Jan 24 2013

Authors: Themistoklis Stefanakis, Shanshan Xu, Denys Dutykh, Frédéric Dias

Fast accurate computation of the fully nonlinear solitary surface gravity waves

Dec 13 2012

Authors: Didier Clamond, Denys Dutykh

Camassa-Holm equations and vortexons for axisymmetric pipe flows

Dec 13 2012

Authors: Francesco Fedele, Denys Dutykh

Vortexons in axisymmetric Poiseuille pipe flows

Dec 13 2012

Authors: Francesco Fedele, Denys Dutykh

Camassa-Holm type equations for axisymmetric Poiseuille pipe flows

Dec 13 2012

Authors: Francesco Fedele, Denys Dutykh

Generation of two-dimensional water waves by moving bottom disturbances

Dec 13 2012

Authors: Hayk Nersisyan, Denys Dutykh, Enrique Zuazua

Boussinesq modeling of surface waves due to underwater landslides

Dec 13 2012

Authors: Denys Dutykh, Henrik Kalisch

Rogue Waves in the Ocean

Sep 20 2012

Tutorial on Rogue Waves in the Ocean, UCD

Rogue Waves

Sep 20 2012

A short tutorial on optical rogue waves

Observation of Kuznetsov-Ma soliton dynamics in optical fibre

Sep 20 2012

The nonlinear Schrodinger equation (NLSE) is a central model of nonlinear science, applying to hydrodynamics, plasma physics, molecular biology and optics.

Rogue Waves Research Project

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