Article Dans Une Revue Geophysical Journal International Année : 2006

Modelling of scattering of seismic waves from a corrugated rough sea surface: a comparison of three methods

Résumé

We compare three numerical methods to model the sea surface interaction in a marine seismic reflection experiment (the frequencies considered are in the band 10-100 Hz): the finite-difference method (FDM), the spectral element method (SEM) and the Kirchhoff method (KM). A plane wave is incident at angles of 0° and 30° with respect to the vertical on a rough Pierson-Moskowitz surface with 2 m significant wave height and the response is synthesized at 6, 10 and 50 m below the average height of the sea surface. All three methods display an excellent agreement for the main reflected arrival. The FDM and SEM also agree very well all through the scattered coda. The KM shows some discrepancies, particularly in terms of amplitudes.

Fichier principal
Vignette du fichier
GJI-2006-167-70-vilotte.pdf (246.24 Ko) Télécharger le fichier
Origine Fichiers éditeurs autorisés sur une archive ouverte
Licence
Loading...

Dates et versions

hal-00270819 , version 1 (04-07-2017)

Licence

Identifiants

Citer

Johan O. A. Robertsson, Laws Robert, Chris Chapman, Jean-Pierre Vilotte, Elise Delavaud. Modelling of scattering of seismic waves from a corrugated rough sea surface: a comparison of three methods. Geophysical Journal International, 2006, 167 (1), pp.70-76. ⟨10.1111/j.1365-246X.2006.03115.x⟩. ⟨hal-00270819⟩
139 Consultations
289 Téléchargements

Altmetric

Partager

  • More