Discussion and Conclusions

The seismic community has identified a number of situations where prestack wave-equation migration has advantages over Kirchhoff techniques. The most important of these are the handling of wavefield triplications and earth models with complex structure or large velocity contrasts. Application of the shot-profile migration strategy to GPR shows encouraging results at our field location, and warrants further research. Further, the flexibility of the method allows for incorporation of more accurate source and receiver wavefield modeling, to include effects such as radiation patterns. Lastly, more advanced imaging conditions could be used to incorporate realistic EM scattering physics into the problem.