I tested the accuracy of the solution of the frequency-dependent eikonal both in presence of wavefield focusing and defocusing. In both cases the results of modeling using the proposed method match the result of modeling using the wave equation significantly better than the solution of the conventional eikonal equation.

Kirchhoff migration and seismic tomography are among the applications that I believe should gain from using my method of computing frequency-dependent traveltimes. But, more investigations are needed for determining the limitations and benefits of applying the new method to either problem.

11/18/1997