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Anomalous Dispersion in Numerical Models of Wave Spectra

  • William Carlisle Thacker

Abstract

When numerical models are used to compute wave spectra at relatively large distances from a storm, the results may be characterized by a patchy distribution of wave energy. This patchiness is a direct consequence of the discrete nature of the wave spectrum in numerical models. To avoid this problem by increasing resolution is computationally expensive, so it is useful to seek a numerical scheme which might minimize this effect. A finite-element analysis suggests that such a scheme might involve advection terms which are averaged over adjacent spectral contributions.

Keywords

Group Velocity Wave Spectrum Anomalous Dispersion Spectral Average Spatial Smoothing 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Plenum Press, New York 1986

Authors and Affiliations

  • William Carlisle Thacker
    • 1
  1. 1.Atlantic Oceanographic and Meteorological LaboratoriesNational Oceanic and Atmospheric AdministrationMiamiUSA

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