AN ACCURATE SCHEME FOR SEISMIC FORWARD MODELLING

H. TAL‐EZER, D. KOSLOFF, Z. KOREN

Research output: Contribution to journalArticlepeer-review

Abstract

A new time integration technique for use in forward modelling programmes is introduced. The technique presents an alternative to second‐order temporal differencing. It is based on a Chebyshev expansion of the formal evolution operator to the spatially discretized wave equation. The computational effort in forward modelling based on the new technique is about the same as in methods based on temporal differencing. However, machine accuracy can be obtained. The implementation of the technique to solve the acoustic wave equation in two spatial dimensions is described. Finally, an example of using the technique to solve a problem of wave propagation in a single layer is presented.

Original languageEnglish
Pages (from-to)479-490
Number of pages12
JournalGeophysical Prospecting
Volume35
Issue number5
DOIs
StatePublished - Jun 1987

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