Nonlinear interaction among internal wave beams generated by tidal flow over supercritical topography

Internal wave beams are generated by tidal flow over topography. For supercritical topography the beams are narrower and higher harmonic beams more pronounced than for subcritical topography. Numerical simulations show that nonlinear interactions between two topographically generated beams generate...

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Bibliographic Details
Published inGeophysical research letters Vol. 31; no. 9; pp. L09313 - n/a
Main Author Lamb, K. G.
Format Journal Article
LanguageEnglish
Published American Geophysical Union 16.05.2004
Blackwell Publishing Ltd
Subjects
Internal and inertial waves
Marine
Numerical modeling
Oceanography
Physical
Turbulence, diffusion, and mixing processes
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Summary:Internal wave beams are generated by tidal flow over topography. For supercritical topography the beams are narrower and higher harmonic beams more pronounced than for subcritical topography. Numerical simulations show that nonlinear interactions between two topographically generated beams generate internal wave beams with the sum and difference frequencies, significantly modifying the super‐tidal frequency portion of the internal wave field in the vicinity of supercritical topographic features.
Bibliography:istex:C35A61F8A0D7A06993188F5868A1D02AE2212D6B
ark:/67375/WNG-37MS72S6-H
ArticleID:2003GL019393
ObjectType-Article-1
SourceType-Scholarly Journals-1
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ISSN:0094-8276
1944-8007
DOI:10.1029/2003GL019393