Modeling the presence of wave groups in a random wave field
| Autor: | A. Ramamonjiarisoa, E. Mollo-Christensen |
|---|---|
| Rok vydání: | 1978 |
| Předmět: |
Physics
Atmospheric Science Ecology Wave propagation Wave packet Plane wave Paleontology Soil Science Forestry Transverse wave Aquatic Science Optical field Oceanography Computational physics Geophysics Classical mechanics Space and Planetary Science Geochemistry and Petrology Surface wave Earth and Planetary Sciences (miscellaneous) Stokes wave Wave vector Earth-Surface Processes Water Science and Technology |
| Zdroj: | Journal of Geophysical Research. 83:4117 |
| ISSN: | 0148-0227 |
| DOI: | 10.1029/jc083ic08p04117 |
| Popis: | Field and laboratory observations of surface wave fields show that the propagation speed of harmonic wave components differs from the predictions of linear theory. Angular spread fails to account for the observed discrepancy. An explanation is that the wave field does not consist of independently propagating Fourier components only but also contains groups of Stokes waves, forming envelope solitons. A model field is proposed, and the power spectral density and wave number spectra, as well as cross spectra, are calculated and compared to observations. A method is also suggested for identifying the properties of solitons contained in an observed wave field from spectra and cross spectra. |
| Databáze: | OpenAIRE |
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