We propose a new numerical approach for the solution of the 2D acoustic wave equation to model the predicted data in the field of active-source seismic inverse problems. This method consists in using an explicit finite difference technique with an adaptive order of approximation of the spatial derivatives that takes into account the local velocity at the grid nodes. Testing our method to simulate the recorded seismograms in a marine seismic acquisition, we found that the low computational time and the low approximation error of the proposed approach make it suitable in the context of seismic inversion problems.
A local adaptive method for the numerical approximation in seismic wave modelling / B.G. Galuzzi, E. Zampieri, E.M. Stucchi. - In: COMMUNICATIONS IN APPLIED AND INDUSTRIAL MATHEMATICS. - ISSN 2038-0909. - 8:1(2017), pp. 14.265-14.281.
Titolo: | A local adaptive method for the numerical approximation in seismic wave modelling |
Autori: | ZAMPIERI, ELENA (Secondo) STUCCHI, EUSEBIO MARIA (Ultimo) |
Parole Chiave: | Finite Difference; Seismic modelling; Seismic inversion; Optimization; Acoustic wave equation |
Settore Scientifico Disciplinare: | Settore GEO/11 - Geofisica Applicata Settore MAT/08 - Analisi Numerica |
Data di pubblicazione: | 2017 |
Rivista: | |
Tipologia: | Article (author) |
Digital Object Identifier (DOI): | http://dx.doi.org/10.1515/caim-2017-0014 |
Appare nelle tipologie: | 01 - Articolo su periodico |
File in questo prodotto:
File | Descrizione | Tipologia | Licenza | |
---|---|---|---|---|
caim-2017-0014.pdf | Publisher's version/PDF | Open Access Visualizza/Apri |