Scattering of seismic waves generated by an irregular seabed

The changes in the seismic response due to the presence of an irregular elastic seabed, and/or the presence of a water-filled inclusion located under the elastic seabed surface, in the presence of a dilatational spatially harmonic line source, is assessed. The seabed surface deformations and the water-filled inclusions are bi-dimensional. The solution is obtained using the Boundary Elements Method for a wide range of frequencies and spatially harmonic line sources, which are then used to compute the time series by means of fast inverse Fourier transforms.