Physical Modelling and Subsalt Illumination

C-44 Physical Modelling and Subsalt Illumination Abstract 1 Gerrit Blacquière and Arno Volker Delft University of Technology Physics Department PO Box 5046 NL-2600 GA The Netherlands Despite the widespread use of numerical modeling there is still room for physical modeling today for many reasons. Two of these are: • physical modeling is based on real wave propagation whereas numerical modeling is based on algorithms which are by necessity simplified and discretized versions of the 'real world' • a numerically modeled full-size wide-band 3-D seismic data set of tens of millions of traces is simply not affordable. In this paper we