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Article: Brief communication: Modulation instability of internal waves in a smoothly stratified shallow fluid with a constant buoyancy frequency

TitleBrief communication: Modulation instability of internal waves in a smoothly stratified shallow fluid with a constant buoyancy frequency
Authors
Keywordsbuoyancy
computer simulation
instability
internal wave
shallow water
Issue Date2019
PublisherCopernicus GmbH. The Journal's web site is located at http://www.natural-hazards-and-earth-system-sciences.net
Citation
Natural Hazards and Earth System Sciences, 2019, v. 19 n. 3, p. 583-587 How to Cite?
AbstractUnexpectedly large displacements in the interior of the oceans are studied through the dynamics of packets of internal waves, where the evolution of these displacements is governed by the nonlinear Schrödinger equation. In cases with a constant buoyancy frequency, analytical treatment can be performed. While modulation instability in surface wave packets only arises for sufficiently deep water, “rogue” internal waves may occur in shallow water and intermediate depth regimes. A dependence on the stratification parameter and the choice of internal modes can be demonstrated explicitly. The spontaneous generation of rogue waves is tested here via numerical simulation.
Persistent Identifierhttp://hdl.handle.net/10722/271230
ISSN
2019 Impact Factor: 3.102
2015 SCImago Journal Rankings: 1.189

 

DC FieldValueLanguage
dc.contributor.authorChow, KW-
dc.contributor.authorChan, HN-
dc.contributor.authorGrimshaw, RHJ-
dc.date.accessioned2019-06-24T01:05:53Z-
dc.date.available2019-06-24T01:05:53Z-
dc.date.issued2019-
dc.identifier.citationNatural Hazards and Earth System Sciences, 2019, v. 19 n. 3, p. 583-587-
dc.identifier.issn1561-8633-
dc.identifier.urihttp://hdl.handle.net/10722/271230-
dc.description.abstractUnexpectedly large displacements in the interior of the oceans are studied through the dynamics of packets of internal waves, where the evolution of these displacements is governed by the nonlinear Schrödinger equation. In cases with a constant buoyancy frequency, analytical treatment can be performed. While modulation instability in surface wave packets only arises for sufficiently deep water, “rogue” internal waves may occur in shallow water and intermediate depth regimes. A dependence on the stratification parameter and the choice of internal modes can be demonstrated explicitly. The spontaneous generation of rogue waves is tested here via numerical simulation.-
dc.languageeng-
dc.publisherCopernicus GmbH. The Journal's web site is located at http://www.natural-hazards-and-earth-system-sciences.net-
dc.relation.ispartofNatural Hazards and Earth System Sciences-
dc.rightsThis work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.-
dc.subjectbuoyancy-
dc.subjectcomputer simulation-
dc.subjectinstability-
dc.subjectinternal wave-
dc.subjectshallow water-
dc.titleBrief communication: Modulation instability of internal waves in a smoothly stratified shallow fluid with a constant buoyancy frequency-
dc.typeArticle-
dc.identifier.emailChow, KW: kwchow@hku.hk-
dc.identifier.authorityChow, KW=rp00112-
dc.description.naturepublished_or_final_version-
dc.identifier.doi10.5194/nhess-19-583-2019-
dc.identifier.scopuseid_2-s2.0-85063187612-
dc.identifier.hkuros298069-
dc.identifier.volume19-
dc.identifier.issue3-
dc.identifier.spage583-
dc.identifier.epage587-
dc.publisher.placeGermany-

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